EP1444918A1 - Brush for the application of products to the eyelashes or eyebrows - Google Patents

Brush for the application of products to the eyelashes or eyebrows Download PDF

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Publication number
EP1444918A1
EP1444918A1 EP04290270A EP04290270A EP1444918A1 EP 1444918 A1 EP1444918 A1 EP 1444918A1 EP 04290270 A EP04290270 A EP 04290270A EP 04290270 A EP04290270 A EP 04290270A EP 1444918 A1 EP1444918 A1 EP 1444918A1
Authority
EP
European Patent Office
Prior art keywords
brush
bristles
core
curved
brush according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04290270A
Other languages
German (de)
French (fr)
Other versions
EP1444918B1 (en
Inventor
Jean-Louis Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Priority to EP06014214A priority Critical patent/EP1707072B1/en
Publication of EP1444918A1 publication Critical patent/EP1444918A1/en
Application granted granted Critical
Publication of EP1444918B1 publication Critical patent/EP1444918B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0253—Bristles having a shape which is not a straight line, e.g. curved, "S", hook, loop
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
    • A45D40/265—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like connected to the cap of the container
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1046—Brush used for applying cosmetics
    • A46B2200/1053—Cosmetics applicator specifically for mascara
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/05—Varied length bristle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/06—Varied composition bristle

Definitions

  • the present invention relates to applicators intended for the application of a product on keratin fibers, especially eyelashes or eyebrows, and more particularly but not exclusively the mascara brushes.
  • US Patent 4,561,456 describes a brush produced by injection molding of plastic material with bristles which have hook-like ends. A drawback of such a brush is to require a specific mold for its manufacture. In addition, the implantation of the bristles is quite different from that of a brush conventional, twisted core.
  • the hairs curved extend with a general orientation which is defined during the manufacture of the brush, especially after the insertion of the bristles on the core, and not with an orientation general totally random or resulting only from the effect of the weight of the hairs.
  • the hairs may not extend entirely in one plane.
  • the curvature imparted to the hairs can be defined in two distinct planes at the minus, for example two non-parallel planes.
  • the brush can be of any type comprising bristles added to the core.
  • a brush according to the invention has advantages linked to the curving of bristles while being able to be produced for example with a conventional twisted core, which makes it possible to make brushes with various layouts, aiming to obtain various makeup effects, without requiring the manufacture of specific and expensive molds.
  • a brush according to the invention is capable of retaining a relatively small amount important product, which allows to coat the eyelashes well.
  • the brush may comprise at least a portion comprising curved bristles, oriented in the same circumferential direction around the core.
  • the core When the core is twisted, it can be twisted to the left, i.e. that the branches of the soul form turns which when the brush is observed being vertical with its end fixed in the rod, i.e. its proximal end, located at the bottom and its free end, i.e. the distal end, located at the top, rise left and right.
  • the bristles can be oriented, when we observe the brush along its axis from its distal end towards its end proximal, clockwise. Alternatively, the hairs could be oriented in the direction counterclockwise.
  • the invention also applies to brushes comprising a twisted core with straight and those with untwisted cores, the hairs being for example fixed by mastering in the core, as described in European patent application EP-A-1 155 637, or even fixed by stapling on the core.
  • the brush may comprise at least a portion comprising curved bristles generally oriented in the same axial direction, for example towards the proximal end or towards the distal end of the brush and, where appropriate, bristles oriented "obliquely" at both in the same circumferential direction and in the same axial direction.
  • the portion of the brush having curved bristles extending so oriented from the core can correspond, at the limit, to the entire brush. This portion may also not correspond to the entire brush and for example match only a portion extending from one end of the brush over for example less than half the length of it or to particular regions of the brush, for example defining ridges or notches.
  • the brush may contain at least 20% of its bristles which are curved, or even at least 50%, for example at least 80%, and substantially all of the bristles of the brush can be curved, possibly.
  • the brush may for example have between 5 and 60 bristles per turn.
  • the number of hairs per turn corresponds to the number of ends of hairs counted by a fixed observer during a 180 ° rotation of the brush around its core.
  • the bristles can be made of synthetic material, being made for example in a thermoplastic material.
  • the bristles may have a solid or hollow section, circular or not, the cross section being constant or not along the hairs, for example passing alternately by sections of large and small diameter, the bristles being able possibly include a flock coating.
  • the bristles may also contain a filler, for example of a compound magnetic, a moisture absorbing compound, a compound intended to create on the surface roughness of the hair or to promote the sliding of the eyelashes on the hairs.
  • a filler for example of a compound magnetic, a moisture absorbing compound, a compound intended to create on the surface roughness of the hair or to promote the sliding of the eyelashes on the hairs.
  • the diameter of the bristles can be for example between 5/100 mm and 35/100 mm.
  • diameter of a hair we mean the diameter of the circle circumscribed at the most large cross section of the hair, when it is not circular.
  • the length of the bristles can be for example between 1 and 7 mm, especially between 2 and 5 mm.
  • the brush may have a mixture of bristles having different lengths compared to the soul, or even different natures.
  • the brush can in particular to include bristles made of materials having temperatures of different glass transition, and only the bristles made from the weakest material glass transition temperature can be curved.
  • the envelope surface of the brush can have various shapes and in particular circular, oval, prismatic or other cross sections with one or more notches or notches.
  • the core may or may not be centered in a cross section of the surface envelope.
  • the cross section of the envelope surface can be constant over minus part of the length of the brush or not, and the brush can for example have a cross section passing through an extremum between its two ends axial, this extremum being for example a maximum or a minimum.
  • the brush can thus present, in side view, a general form of hourglass or rugby ball.
  • the core can be straight or not, in particular be curved, with a curvature distributed over its entire length or located only in a region close to that used to attach the brush to an applicator rod.
  • the brush can, if necessary, be curved around at least two axes not coplanar.
  • the invention also relates to a packaging device and of application comprising such a brush.
  • This surface is preferably defined by a material having a relatively low thermal conductivity, such as for example a silicone, a polymer fluorinated, in particular a polytetrafluoroethylene, or a mineral material other than a metal, for example graphite.
  • a material having a thermal conductivity relatively weak prevents hairs from sticking to the hot surface when treatment of the brush and further avoids melting the ends of the bristles, or even weld them together.
  • the relative movement between the brush and the hot surface can be chosen by depending on the general orientation that one wishes to give to the hairs.
  • the brush is driven in rotation about its axis, which can be used to treat at least one longitudinal portion of the brush over its entire circumference.
  • the hot surface can be defined by a fixed or moved treatment unit axially during treatment, for example in one direction or with a back and forth movement.
  • Moving in only one axial direction allows the hairs to be oriented by example towards the proximal end or towards the distal end of the brush.
  • the rotation of the brush allows for example to orient the bristles in the same circumferential direction, which can be chosen according to the orientation of the turns of the core, in particular in the case of a twisted core brush.
  • the treatment is rotated
  • the brush can be fixed or also driven in rotation, for example in the same direction of rotation or in a opposite direction of rotation that of the processing unit.
  • the brush can still be moved axially relative to the processing organ.
  • the hot surface can have various shapes, depending on the treatment to perform.
  • the hot surface may in particular have a shape such that the brush come to rest on it by a single sector of its circumference, or even come to rest by two sectors separated from its circumference, which is for example the case when the hot surface has a dihedral shape with a sufficiently small apex angle so that the bristles of the brush do not reach this one.
  • the surface condition of the treatment device can be chosen according to the treatment that one wishes to carry out.
  • the hot surface can thus be smooth or slightly rough, for example.
  • the drive means may for example include at least one motor allowing the brush to rotate around its axis and / or to drive the processing member in rotation, and if necessary to cause the axial displacement brush and / or the treatment unit.
  • the means of training can still allow move the brush closer or further away from the hot surface of the treatment device.
  • the brush and the treatment element can be rotated simultaneously around with parallel axes or not.
  • the brush rotation drive can be done counterclockwise around its axis when we observe the brush from the front by its distal end. We then obtains an orientation of the hairs in the circumferential direction which is favorable for a good handling of eyelashes by the bristles of the brush.
  • the temperature at which the surface of the processing member intended to come in contact with the bristles of the brush is heated depends on the nature of the bristles of the brush and of the treatment that one wishes to give to the hairs. This temperature can for example be between 80 ° C and 220 ° C, and preferably be greater than or equal to about 150 ° C when the bristles of the brush are made of polyamide 6/6, 6/10, 6/12 or 11 in particular.
  • the drive speed in rotation can be for example between 100 and 1200 revolutions / minute. This speed may be chosen depending in particular on the temperature of the processing member, the contact pressure between the bristles and the treatment member and the shape of the latter.
  • the packaging and application device 1 represented in FIG. 1 includes a container 2 containing a product P to be applied to the eyelashes or the eyebrows, by example of mascara, and an applicator 3 comprising a rod 4 of longitudinal axis X provided at one end 4a with a brush 5 and at the opposite end with a grip 6 also serving to close the container 2.
  • the latter has a neck 7 which is externally threaded, so as to allow the screwing of the gripping member 6.
  • a wiping member 8 is fixed inside the neck 7 to wipe the rod 4 and the brush 5 as they exit the container.
  • This wiper member 8 has a flexible lip 9 defining a circular orifice whose diameter corresponds substantially to that of the rod 4.
  • the invention is not limited to the use of an organ special wiping and other wiping members can be used, for example wiping members comprising a foam block and / or defining one or more slits, flocked or not.
  • the rod 4 is straight but it could be curved without departing from the scope of the present invention.
  • rod 4 is shown as being fixed relative to the member grip 6 but it could be movable relative to the latter, for example thanks to an articulated link, in particular a ball joint.
  • the brush 5 comprises a core 10 formed by two twisted metal strands, this core 10 being fixed at one end in a housing of the rod 4, being for example forced into this housing.
  • the brush 5 also includes bristles 11 which are held by clamping between the twisted strands of the core 10, as can be seen in FIGS. 2 and 3.
  • the core is shown viewed from the side with the proximal end of the brush arranged on the left side and its distal end on the right side, the brush being said "Twisted to the left".
  • the brush 5 comprises at least one portion with non-straight hair, having a curved shape as can see it in Figure 2 in particular.
  • the hairs 11 are generally curved in the same circumferential direction, namely counterclockwise on Figure 2. The hairs are curved, so that they are not completely straight from the point where they cease to be in contact with the soul until their free end.
  • the hairs are curved so as to extend from the core in an oriented manner.
  • the curved hairs can extend with a general orientation defined during of making the brush.
  • the hairs are not completely general in orientation random or resulting only from the effect of the weight of the hairs.
  • the curvature of the hairs can be defined in at least two separate planes.
  • a hair can have at least a first curvature measured in a foreground and a second curvature measured in a second plane.
  • the second plane can be for example perpendicular to the first.
  • a curved hair may include, for example, a curvilinear portion and a straight portion; this straight portion may extend for example over less than the half, a third, or a quarter of the length of the portion of the hair that extends from the soul to its free end.
  • a curved hair has a straight portion
  • this may extend towards the core from a point located for example at a distance, measured from the free end of the hair, which is less than 3/4, 2/3, or 1/2 of the length of the portion of the hair which extends from the core to its free end.
  • the hair can present along this portion a constant cross section.
  • the hairs can already be kept in the core when they are treated.
  • the bristles of the brush can for example extend straight from the core, with a cross section constant.
  • the starting bristles can thus, for example, be bristles without waves.
  • the processing member 20 extends in parallel at least at the Y axis along the entire length of the brush.
  • the brush is by example rotated around the Y axis clockwise when looking at the brush along its Y axis with the distal end 5a of the brush forward, as illustrated in figure 4.
  • the processing member 20 includes heating means 22, for example an electrical resistance or a circulation pipe for a heat transfer fluid, which allow to bring the surface 21 to a temperature sufficient to cause a permanent deformation of the bristles 11 of the brush after passage of the latter in contact of the processing unit 20.
  • heating means 22 for example an electrical resistance or a circulation pipe for a heat transfer fluid, which allow to bring the surface 21 to a temperature sufficient to cause a permanent deformation of the bristles 11 of the brush after passage of the latter in contact of the processing unit 20.
  • the surface 21 is for example brought to a temperature of the order of 150 ° C. for a brush comprising bristles of polyamide, in particular polyamide 6/6.
  • the brush is for example rotated at a speed of the order of 1000 revolutions / minute in the case of polyamide bristles, in particular polyamide 6/6, for a temperature of the surface 21 of the order of 150 ° C., by means of a coupled support 30 to a motor and comprising a jaw 31 making it possible to grasp the core of the brush.
  • the treatment member 20 comprises a body 23, defining the surface 21, made of a material having a relatively poor thermal conductivity, by example in silicone, which makes it easier for hairs coming into contact with the surface 21 not to adhere to the latter and in particular to the ends of the bristles to not melt or weld together. Only a surface coating of the organ of processing could still be carried out in such a material.
  • FIGS. 6 and 7 illustrate the possibility for the treatment member 20 not to extend over the entire length of the brush, in order, for example, to treat only a portion l or l " only thereof. ci, the portion l ', respectively l " extending for example from the distal end of the brush, respectively its proximal end, over more or less than half of the total length of the brush.
  • Figure 6 also illustrates the possibility of having relative movement in the direction of the Y axis of the brush between the latter and the processing member 20, so by example of orienting the hairs towards the proximal end or towards the distal end in addition a possible orientation in the circumferential direction.
  • FIG. 8 illustrates the possibility for the processing member 20 of present a surface 21 whose radius of curvature is for example greater than the radius of the brush casing cylinder.
  • a surface 21 whose radius of curvature is for example greater than the radius of the brush casing cylinder.
  • the surface 21 can have various shapes and for example a shape that is not cylindrical of revolution, as illustrated in figure 9.
  • the surface 21 has two flat portions 21a and 21b forming a dihedral, and the bristles of the brush 5 can come into contact with these portions 21a and 21 b, while the bristles of the brush located between these portions 21 a and 21 b do not come in contact with the surface 21.
  • the treatment member 20 may comprise, if necessary, as illustrated in the FIG. 9A, at least two disjoint parts 20a and 20b, defining hot surfaces 21a and 21b respectively with which the bristles of the brush can come into contact.
  • the brush can be driven in rotation about the Y axis and the processing member 20 not be rotatable.
  • the processing member 20 which can be driven in rotation and the brush 5 which is fixed, in order to treat only part of the circumference of the brush which may thus have, as illustrated in FIG. 13, a set of curved hairs on a part of its circumference and a set of hairs straight across the rest of its circumference.
  • the sides of the brush of figure 13B one can treat the sides of the brush of so as to orient all the hairs on the same side in the same direction, the orientation of the hairs reversing when going from one side to the next.
  • the brush can be made with a mixture of long bristles 11a and bristles short 11b and be treated so that only the long hairs 11a come into contact with the heated surface 21 so as to take a curved shape, the hairs short 11b not being heated and remaining rectilinear, as illustrated in FIG. 14.
  • the brush may have an envelope surface, defined by the ends free of hairs, of non-circular cross section.
  • FIG. 15 shows an envelope surface of substantially prismatic cross section, for example substantially triangular.
  • a brush by rotating the brush around its Y axis in contact with a surface heated, one can obtain a curved shape of the hairs, for example in the anti-clockwise direction, as shown in Figure 16.
  • FIG. 17 shows a cross-sectional envelope surface substantially square.
  • FIGS. 19 to 26 show other possible forms of cross sections for the envelope surface of the brush, among others.
  • FIG. 19 thus represents a cross section of substantially shaped pentagonal and Figure 20 of substantially hexagonal shape.
  • Figure 21 shows a cross section of substantially oval shape.
  • FIG. 22 illustrates the possibility of making the brush with at least one notch 41, which can be concave outward as illustrated, this notch with a constant cross section or not when moving along the brush.
  • FIG. 23 illustrates the possibility of producing at least one facet 42 substantially flat on the brush.
  • Figure 24 illustrates the possibility of making the brush with at least one notch 43, in this case three.
  • FIG. 25 represents an alternative embodiment of a brush comprising two notches 43 and FIG. 26 corresponds to an alternative embodiment not comprising only one.
  • the core 10 can be centered or not relative to the contour of the surface envelope, when the brush is observed in cross section.
  • FIG. 27 shows a brush whose core is eccentrically.
  • the brush can have a constant cross section or not, and a core straight or not.
  • the brush may have a cross section passing through an extremum 45, as illustrated in FIG. 27, which can be a maximum or a minimum.
  • the brush may also have, as illustrated in FIG. 29, a section transverse passing through a maximum 46 and a minimum 47.
  • the core can be curved so as for example to straighten an edge 48 of the brush, as shown in Figures 29 and 30.
  • the brush 5 may also include a core which has an elbow 49 to near the distal end 4a of the rod 4, as illustrated in FIG. 31, the portion of the core carrying the hairs can be rectilinear.
  • the brush can still be twisted to right, as shown in Figure 32.
  • the bristles used may have various cross sections, other than circular.
  • bristles having in cross section one shapes shown in Figures 34 to 51 schematically for example a circular shape with a flat as shown in Figure 34, flattened as shown in figure 35, star-shaped, for example in the shape of a cross as illustrated in figure 36 or three branches as illustrated in Figure 37, of U as shown in Figure 38, of H as shown in Figure 39, from T as shown in Figure 40, from V as shown in Figure 41, a hollow shape, for example circular as shown in the Figure 42 or prismatic, in particular square as shown in Figure 43, forming ramifications, for example in the form of a snowflake as illustrated in FIG. 44, a prismatic section for example triangular as illustrated in figure 45, square like shown in Figure 46 or hexagonal as shown in Figure 47, or a shape oblong, especially lenticular as shown in Figure 48 or hourglass shaped as shown in Figure 49.
  • bristles having parts articulated with respect to each other. to others as shown in Figure 50. It is also possible to use bristles having minus a capillary groove 60 as illustrated in FIG. 51.
  • the bristles may, if necessary if necessary, before being curved, undergo a treatment intended to form at their end a ball 61 as illustrated in FIG. 52 or forks 62 as illustrated in FIG. 53.
  • the bristles can also be made with a material having properties promoting sliding.
  • the bristles can be made from synthetic materials chosen by example among polyethylene, polyamides in particular PA6, PA6 / 6, PA6 / 10 or PA6 / 12, PA11, in particular RILSAN®, a HYTREL® -PEBAX® polymer and others thermoplastic polymers.
  • the core can be made differently, for example using a core double, formed by two elementary cores 10 'and 10 "twisted together as illustrated in FIG. 56.
  • Each elementary core 10 ′, 10 "in this figure has two strands twisted together and enclosing hairs.
  • Metallic strands of circular section can be used to make the core or not, sheathed or not.

Abstract

In a brush for application of products to keratin materials, consisting of a core and bristles supported by the core (but not produced by injection molding together with the core), at least some of the bristles are curved inwards relative to the core. Independent claims are included for: (a) a method for production of the brush, involving curving the bristles by contact with a heated surface, preferably in motion relative to the brush; and (b) a machine for carrying out the method, comprising a support for at least one brush; a treatment device comprising a surface for contacting the bristles and a heater for the surface; and a system for displacing the support relative to the treatment device so that the orientation of the bristles is modified by contact with the surface.

Description

La présente invention concerne les applicateurs destinés à l'application d'un produit sur les fibres kératiniques, notamment les cils ou les sourcils, et plus particulièrement mais non exclusivement les brosses à mascara.The present invention relates to applicators intended for the application of a product on keratin fibers, especially eyelashes or eyebrows, and more particularly but not exclusively the mascara brushes.

Le brevet US 4 561 456 décrit une brosse réalisée par moulage par injection de matière plastique avec des poils qui présentent des extrémités en forme de crochet. Un inconvénient d'une telle brosse est de nécessiter un moule spécifique pour sa fabrication. En outre, l'implantation des poils est assez différente de celle d'une brosse conventionnelle, à âme torsadée.US Patent 4,561,456 describes a brush produced by injection molding of plastic material with bristles which have hook-like ends. A drawback of such a brush is to require a specific mold for its manufacture. In addition, the implantation of the bristles is quite different from that of a brush conventional, twisted core.

Il existe un besoin pour bénéficier d'une brosse perfectionnée, qui soit relativement aisée à fabriquer tout en étant capable de procurer un maquillage satisfaisant.There is a need to benefit from an improved brush, which is relatively easy to manufacture while being able to provide satisfactory makeup.

L'invention a pour objet, selon un premier de ses aspects parmi d'autres, une brosse pour l'application d'un produit sur les fibres kératiniques, comportant :

  • une âme,
  • des poils supportés par l'âme et réalisés autrement que par moulage par injection avec l'âme,
    la brosse comportant au moins une portion comportant des poils incurvés s'étendant de manière orientée à partir de l'âme.
The subject of the invention is, according to a first of its aspects among others, a brush for applying a product to keratin fibers, comprising:
  • a soul,
  • bristles supported by the core and produced otherwise than by injection molding with the core,
    the brush comprising at least a portion comprising curved bristles extending in an oriented manner from the core.

Par « s'étendant de manière orientée », il faut comprendre que les poils incurvés s'étendent avec une orientation générale qui est définie lors de la fabrication de la brosse, notamment après l'insertion des poils sur l'âme, et non pas avec une orientation générale totalement aléatoire ou résultant seulement de l'effet du poids des poils.By "extending in an oriented manner", it should be understood that the hairs curved extend with a general orientation which is defined during the manufacture of the brush, especially after the insertion of the bristles on the core, and not with an orientation general totally random or resulting only from the effect of the weight of the hairs.

Les poils peuvent ne pas s'étendre entièrement dans un seul plan.The hairs may not extend entirely in one plane.

La courbure conférée aux poils peut se définir dans deux plans distincts au moins, par exemple deux plans non parallèles.The curvature imparted to the hairs can be defined in two distinct planes at the minus, for example two non-parallel planes.

La brosse peut être de tout type comportant des poils rapportés sur l'âme.The brush can be of any type comprising bristles added to the core.

Une brosse selon l'invention présente des avantages liés à l'incurvation des poils tout en pouvant être fabriquée par exemple avec une âme torsadée conventionnelle, ce qui permet de réaliser des brosses avec des implantations variées, visant à obtenir des effets de maquillage divers, sans nécessiter la fabrication de moules spécifiques et coûteux. En outre, une brosse selon l'invention est susceptible de retenir une quantité relativement importante de produit, ce qui permet de bien enduire les cils. A brush according to the invention has advantages linked to the curving of bristles while being able to be produced for example with a conventional twisted core, which makes it possible to make brushes with various layouts, aiming to obtain various makeup effects, without requiring the manufacture of specific and expensive molds. In addition, a brush according to the invention is capable of retaining a relatively small amount important product, which allows to coat the eyelashes well.

La brosse peut comporter au moins une portion comprenant des poils incurvés, orientés dans le même sens circonférentiel autour de l'âme.The brush may comprise at least a portion comprising curved bristles, oriented in the same circumferential direction around the core.

Lorsque l'âme est torsadée, celle-ci peut être torsadée à gauche, c'est-à-dire que les branches de l'âme forment des spires qui, lorsque la brosse est observée en étant verticale avec son extrémité fixée dans la tige, c'est-à-dire son extrémité proximale, située en bas et son extrémité libre, c'est-à-dire l'extrémité distale, située en haut, montent de gauche à droite. Pour une brosse torsadée à gauche, les poils peuvent être orientés, lorsque l'on observe la brosse selon son axe depuis son extrémité distale vers son extrémité proximale, dans le sens horaire. En variante, les poils pourraient être orientés dans le sens anti-horaire. En ce qui concerne les avantages résultant d'une âme torsadée à gauche, on pourra utilement se reporter au brevet US 6 227 735. Le fait d'incurver comme ci-dessus les poils dans une brosse ayant une âme torsadée à gauche permet d'améliorer encore la prise en charge des cils et le maquillage.When the core is twisted, it can be twisted to the left, i.e. that the branches of the soul form turns which when the brush is observed being vertical with its end fixed in the rod, i.e. its proximal end, located at the bottom and its free end, i.e. the distal end, located at the top, rise left and right. For a brush twisted to the left, the bristles can be oriented, when we observe the brush along its axis from its distal end towards its end proximal, clockwise. Alternatively, the hairs could be oriented in the direction counterclockwise. Regarding the benefits of a left twisted core, we may usefully refer to US Patent 6,227,735. Bending as above the bristles in a brush having a twisted core to the left can further improve the care for eyelashes and makeup.

L'invention s'applique également aux brosses comportant une âme torsadée à droite et à celles comportant des âmes non torsadées, les poils étant par exemple fixés par matriçage dans l'âme, comme décrit dans la demande de brevet européen EP-A-1 155 637, ou encore fixés par agrafage sur l'âme.The invention also applies to brushes comprising a twisted core with straight and those with untwisted cores, the hairs being for example fixed by mastering in the core, as described in European patent application EP-A-1 155 637, or even fixed by stapling on the core.

La brosse peut comporter au moins une portion comportant des poils incurvés orientés généralement dans le même sens axial, par exemple vers l'extrémité proximale ou vers l'extrémité distale de la brosse et, le cas échéant, des poils orientés « obliquement » à la fois dans un même sens circonférentiel et dans un même sens axial.The brush may comprise at least a portion comprising curved bristles generally oriented in the same axial direction, for example towards the proximal end or towards the distal end of the brush and, where appropriate, bristles oriented "obliquely" at both in the same circumferential direction and in the same axial direction.

La portion de la brosse comportant des poils incurvés s'étendant de manière orientée à partir de l'âme peut correspondre, à la limite, à l'ensemble de la brosse. Cette portion peut aussi ne pas correspondre à la totalité de la brosse et par exemple correspondre seulement à une portion s'étendant à partir d'une extrémité de la brosse sur par exemple moins de la moitié de la longueur de celle-ci ou à des régions particulières de la brosse, définissant par exemple des crêtes ou des crans.The portion of the brush having curved bristles extending so oriented from the core can correspond, at the limit, to the entire brush. This portion may also not correspond to the entire brush and for example match only a portion extending from one end of the brush over for example less than half the length of it or to particular regions of the brush, for example defining ridges or notches.

La brosse peut comporter au moins 20 % de ses poils qui sont incurvés, voire au moins 50 %, par exemple au moins 80 %, et sensiblement tous les poils de la brosse peuvent être incurvés, éventuellement. The brush may contain at least 20% of its bristles which are curved, or even at least 50%, for example at least 80%, and substantially all of the bristles of the brush can be curved, possibly.

La brosse peut comporter par exemple entre 5 et 60 poils par spire. Le nombre de poils par spire correspond au nombre d'extrémités de poils dénombrées par un observateur fixe au cours d'une rotation de 180° de la brosse autour de son âme.The brush may for example have between 5 and 60 bristles per turn. The number of hairs per turn corresponds to the number of ends of hairs counted by a fixed observer during a 180 ° rotation of the brush around its core.

Les poils peuvent être en matière synthétique, étant réalisés par exemple dans une matière thermoplastique.The bristles can be made of synthetic material, being made for example in a thermoplastic material.

Les poils peuvent présenter une section pleine ou creuse, circulaire ou non, la section transversale étant constante ou non le long des poils, par exemple passant alternativement par des sections de grand et de petit diamètre, les poils pouvant éventuellement comporter un revêtement de flocage.The bristles may have a solid or hollow section, circular or not, the cross section being constant or not along the hairs, for example passing alternately by sections of large and small diameter, the bristles being able possibly include a flock coating.

Les poils peuvent également comporter une charge, par exemple d'un composé magnétique, d'un composé absorbeur d'humidité, d'un composé destiné à créer à la surface du poil une rugosité ou encore à favoriser le glissement des cils sur les poils.The bristles may also contain a filler, for example of a compound magnetic, a moisture absorbing compound, a compound intended to create on the surface roughness of the hair or to promote the sliding of the eyelashes on the hairs.

Le diamètre des poils peut être compris par exemple entre 5/100 mm et 35/100 mm. Par diamètre d'un poil, on désigne le diamètre du cercle circonscrit à la plus grande section transversale du poil, lorsque celle-ci n'est pas circulaire.The diameter of the bristles can be for example between 5/100 mm and 35/100 mm. By diameter of a hair, we mean the diameter of the circle circumscribed at the most large cross section of the hair, when it is not circular.

La longueur des poils peut être comprise par exemple entre 1 et 7 mm, notamment entre 2 et 5 mm.The length of the bristles can be for example between 1 and 7 mm, especially between 2 and 5 mm.

La brosse peut comporter un mélange de poils ayant des longueurs différentes par rapport à l'âme, voire des natures différentes.The brush may have a mixture of bristles having different lengths compared to the soul, or even different natures.

Seuls les poils les plus longs de la brosse peuvent par exemple présenter une forme incurvée, les autres s'étendant de manière rectiligne depuis l'âme.For example, only the longest bristles of the brush curved shape, the others extending in a straight line from the soul.

Lorsque la brosse comporte un mélange de poils ayant différentes natures, seuls par exemple les poils d'une certaine nature peuvent être incurvés. La brosse peut notamment comporter des poils réalisés dans des matières ayant des températures de transition vitreuse différentes, et seuls les poils réalisés dans la matière ayant la plus faible température de transition vitreuse peuvent être incurvés.When the brush contains a mixture of bristles having different natures, only, for example, hairs of a certain nature can be curved. The brush can in particular to include bristles made of materials having temperatures of different glass transition, and only the bristles made from the weakest material glass transition temperature can be curved.

La surface enveloppe de la brosse peut présenter diverses formes et notamment des sections transversales circulaires, ovales, prismatiques ou autres, avec une ou plusieurs encoches ou crans.The envelope surface of the brush can have various shapes and in particular circular, oval, prismatic or other cross sections with one or more notches or notches.

L'âme peut être centrée ou non dans une section transversale de la surface enveloppe. The core may or may not be centered in a cross section of the surface envelope.

La section transversale de la surface enveloppe peut être constante sur au moins une partie de la longueur de la brosse ou non, et la brosse peut par exemple présenter une section transversale passant par un extremum entre ses deux extrémités axiales, cet extremum étant par exemple un maximum ou un minimum. La brosse peut ainsi présenter, en vue de côté, une forme générale de sablier ou de ballon de rugby.The cross section of the envelope surface can be constant over minus part of the length of the brush or not, and the brush can for example have a cross section passing through an extremum between its two ends axial, this extremum being for example a maximum or a minimum. The brush can thus present, in side view, a general form of hourglass or rugby ball.

L'âme peut être rectiligne ou non, notamment être courbe, avec une courbure répartie sur toute sa longueur ou localisée seulement dans une région proche de celle servant à la fixation de la brosse sur une tige d'un applicateur.The core can be straight or not, in particular be curved, with a curvature distributed over its entire length or located only in a region close to that used to attach the brush to an applicator rod.

La brosse peut, le cas échéant, être courbe autour d'au moins deux axes non coplanaires.The brush can, if necessary, be curved around at least two axes not coplanar.

L'invention a encore pour objet un dispositif de conditionnement et d'application comportant une telle brosse.The invention also relates to a packaging device and of application comprising such a brush.

L'invention a encore pour objet, selon un autre de ses aspects, un procédé de fabrication d'une brosse pour l'application d'un produit sur les fibres kératiniques, notamment les cils ou les sourcils, comportant l'étape suivante :

  • incurver des poils de la brosse par contact avec une surface chaude, notamment une surface en mouvement relatif par rapport à la brosse.
Another subject of the invention, according to another of its aspects, is a method of manufacturing a brush for applying a product to keratin fibers, in particular the eyelashes or the eyebrows, comprising the following step:
  • bending the bristles of the brush by contact with a hot surface, in particular a surface in relative movement relative to the brush.

Cette surface est de préférence définie par un matériau présentant une conductivité thermique relativement faible, tel que par exemple un silicone, un polymère fluoré, notamment un polytétrafluoroéthylène, ou une matière minérale autre qu'un métal, par exemple du graphite. L'utilisation d'un matériau présentant une conductivité thermique relativement faible permet d'éviter que les poils ne collent à la surface chaude lors du traitement de la brosse et permet d'éviter encore de faire fondre les extrémités des poils, voire de les souder entre eux.This surface is preferably defined by a material having a relatively low thermal conductivity, such as for example a silicone, a polymer fluorinated, in particular a polytetrafluoroethylene, or a mineral material other than a metal, for example graphite. The use of a material having a thermal conductivity relatively weak prevents hairs from sticking to the hot surface when treatment of the brush and further avoids melting the ends of the bristles, or even weld them together.

Le mouvement relatif entre la brosse et la surface chaude pourra être choisi en fonction de l'orientation générale que l'on souhaite donner aux poils.The relative movement between the brush and the hot surface can be chosen by depending on the general orientation that one wishes to give to the hairs.

Dans un mode particulier de mise en oeuvre de l'invention, la brosse est entraínée en rotation autour de son axe, ce qui peut permettre de traiter au moins une portion longitudinale de la brosse sur l'ensemble de sa circonférence.In a particular embodiment of the invention, the brush is driven in rotation about its axis, which can be used to treat at least one longitudinal portion of the brush over its entire circumference.

La surface chaude peut être définie par un organe de traitement fixe ou déplacé axialement durant le traitement, par exemple dans une seule direction ou avec un mouvement de va-et-vient. The hot surface can be defined by a fixed or moved treatment unit axially during treatment, for example in one direction or with a back and forth movement.

Le déplacement dans une seule direction axiale permet d'orienter les poils par exemple vers l'extrémité proximale ou vers l'extrémité distale de la brosse.Moving in only one axial direction allows the hairs to be oriented by example towards the proximal end or towards the distal end of the brush.

L'entraínement en rotation de la brosse permet par exemple d'orienter les poils dans le même sens circonférentiel, lequel pourra être choisi en fonction de l'orientation des spires de l'âme, notamment dans le cas d'une brosse à âme torsadée.The rotation of the brush allows for example to orient the bristles in the same circumferential direction, which can be chosen according to the orientation of the turns of the core, in particular in the case of a twisted core brush.

Dans un autre exemple particulier de mise en oeuvre de l'invention, l'organe de traitement est entraíné en rotation, la brosse pouvant être fixe ou entraínée également en rotation, par exemple dans le même sens de rotation ou dans un sens de rotation contraire de celui de l'organe de traitement. La brosse peut encore être déplacée axialement relativement à l'organe de traitement.In another particular example of implementation of the invention, the treatment is rotated, the brush can be fixed or also driven in rotation, for example in the same direction of rotation or in a opposite direction of rotation that of the processing unit. The brush can still be moved axially relative to the processing organ.

La surface chaude peut présenter des formes diverses, en fonction du traitement à effectuer.The hot surface can have various shapes, depending on the treatment to perform.

La surface chaude peut notamment présenter une forme faisant que la brosse vienne en appui dessus par un secteur unique de sa circonférence, voire vienne en appui par deux secteurs disjoints de sa circonférence, ce qui est par exemple le cas lorsque la surface chaude présente une forme de dièdre avec un angle au sommet suffisamment faible pour que les poils de la brosse n'atteignent pas celui-ci.The hot surface may in particular have a shape such that the brush come to rest on it by a single sector of its circumference, or even come to rest by two sectors separated from its circumference, which is for example the case when the hot surface has a dihedral shape with a sufficiently small apex angle so that the bristles of the brush do not reach this one.

L'état de surface de l'organe de traitement peut être choisi en fonction du traitement que l'on souhaite réaliser. La surface chaude peut ainsi être lisse ou légèrement rugueuse, par exemple.The surface condition of the treatment device can be chosen according to the treatment that one wishes to carry out. The hot surface can thus be smooth or slightly rough, for example.

L'invention a encore pour objet, selon un autre de ses aspects, une machine de fabrication d'une brosse pour l'application d'un produit sur les fibres kératiniques, cette machine pouvant servir à la mise en oeuvre du procédé défini plus haut, cette machine comportant :

  • un support agencé pour supporter au moins une brosse,
  • un organe de traitement d'au moins cette brosse, comportant :
    • une surface agencée pour venir au contact de poils de la brosse,
    • des moyens de chauffage pour chauffer cette surface, et
    • des moyens pour produire un déplacement relatif du support et de l'organe de traitement afin de modifier d'une manière prédéfinie l'orientation des poils de la brosse venant au contact de la surface de l'organe de traitement.
Another subject of the invention, according to another of its aspects, is a machine for manufacturing a brush for applying a product to keratin fibers, this machine being able to be used for implementing the method defined above. , this machine comprising:
  • a support arranged to support at least one brush,
  • a member for processing at least this brush, comprising:
    • a surface arranged to come into contact with bristles of the brush,
    • heating means for heating this surface, and
    • means for producing a relative displacement of the support and of the treatment member in order to modify in a predefined manner the orientation of the bristles of the brush coming into contact with the surface of the treatment member.

Les moyens d'entraínement peuvent par exemple comporter au moins un moteur permettant d'entraíner en rotation la brosse autour de son axe et/ou d'entraíner l'organe de traitement en rotation, et le cas échéant d'entraíner en déplacement axial la brosse et/ou l'organe de traitement. Les moyens d'entraínement peuvent encore permettre de rapprocher ou d'éloigner la brosse de la surface chaude de l'organe de traitement. La brosse et l'organe de traitement peuvent être entraínés simultanément en rotation autour d'axes parallèles ou non.The drive means may for example include at least one motor allowing the brush to rotate around its axis and / or to drive the processing member in rotation, and if necessary to cause the axial displacement brush and / or the treatment unit. The means of training can still allow move the brush closer or further away from the hot surface of the treatment device. The brush and the treatment element can be rotated simultaneously around with parallel axes or not.

Lorsque la brosse comporte une âme torsadée, notamment une âme torsadée à gauche, l'entraínement en rotation de la brosse peut s'effectuer dans le sens anti-horaire autour de son axe lorsque l'on observe la brosse de face par son extrémité distale. On obtient alors une orientation des poils dans le sens circonférentiel qui est favorable à une bonne prise en charge des cils par les poils de la brosse.When the brush has a twisted core, in particular a twisted core with left, the brush rotation drive can be done counterclockwise around its axis when we observe the brush from the front by its distal end. We then obtains an orientation of the hairs in the circumferential direction which is favorable for a good handling of eyelashes by the bristles of the brush.

La température à laquelle la surface de l'organe de traitement destinée à venir au contact des poils de la brosse est chauffée dépend de la nature des poils de la brosse et du traitement que l'on souhaite donner aux poils. Cette température peut par exemple être comprise entre 80 °C et 220 °C, et de préférence être supérieure ou égale à environ 150 °C lorsque les poils de la brosse sont en polyamide 6/6, 6/10, 6/12 ou 11 notamment.The temperature at which the surface of the processing member intended to come in contact with the bristles of the brush is heated depends on the nature of the bristles of the brush and of the treatment that one wishes to give to the hairs. This temperature can for example be between 80 ° C and 220 ° C, and preferably be greater than or equal to about 150 ° C when the bristles of the brush are made of polyamide 6/6, 6/10, 6/12 or 11 in particular.

Lorsque la brosse est entraínée en rotation, la vitesse d'entraínement en rotation peut être par exemple comprise entre 100 et 1200 tours/minute. Cette vitesse pourra être choisie en fonction notamment de la température de l'organe de traitement, de la pression de contact entre les poils et l'organe de traitement et de la forme de ce dernier.When the brush is rotated, the drive speed in rotation can be for example between 100 and 1200 revolutions / minute. This speed may be chosen depending in particular on the temperature of the processing member, the contact pressure between the bristles and the treatment member and the shape of the latter.

L'invention pourra être mieux comprise à la lecture de la description détaillée qui va suivre, d'exemples de mise en oeuvre non limitatifs de celle-ci, et à l'examen du dessin annexé, sur lequel :

  • la figure 1 est une vue schématique en coupe axiale d'un dispositif de conditionnement et d'application comportant une brosse selon l'invention,
  • la figure 2 est une vue de la brosse selon la flèche II de la figure 1, représentant de face très schématiquement l'extrémité distale de la brosse,
  • la figure 3 est une vue schématique et partielle représentant des poils pris entre les branches torsadées de l'âme de la brosse de la figure 1,
  • la figure 4 est une vue schématique destinée à illustrer un exemple de traitement pouvant être subi par la brosse,
  • la figure 5 représente en section transversale l'organe de traitement de la figure 4,
  • la figure 6 représente une variante d'organe de traitement,
  • la figure 7 illustre la possibilité de ne traiter qu'une partie seulement de la longueur de la brosse,
  • les figures 8, 9 et 9A représentent des variantes d'organes de traitement,
  • les figures 10 à 12 illustrent différentes formes de poils susceptibles d'être obtenues, parmi d'autres,
  • la figure 13 illustre la possibilité de ne traiter qu'un secteur angulaire de la brosse,
  • les figures 13A et 13B illustrent la possibilité de traiter différemment au moins deux secteurs angulaires de la brosse,
  • la figure 14 représente de manière schématique en coupe transversale une brosse comportant des poils rectilignes courts et des poils longs incurvés,
  • la figure 15 représente de manière schématique une enveloppe de brosse de section transversale de forme sensiblement triangulaire,
  • la figure 16 représente de manière très schématique en vue de face l'extrémité distale d'une brosse dont l'enveloppe présente sensiblement la section transversale correspondant à la figure 15,
  • la figure 17 représente de manière schématique l'enveloppe d'une brosse de section transversale de forme générale carrée,
  • la figure 18 est une vue très schématique, de face, de l'extrémité distale d'une brosse dont l'enveloppe présente sensiblement la section transversale de la figure 17,
  • les figures 19 à 26 représentent de manière schématique en section transversale d'autres formes possibles pour l'enveloppe de la brosse,
  • la figure 27 illustre la possibilité d'excentrer l'âme,
  • les figures 28 et 29 représentent de manière schématique en vue de côté des enveloppes de brosses ayant une section transversale non constante,
  • la figure 30 représente schématiquement la brosse de la figure 29 après courbure de l'âme,
  • la figure 31 est un autre exemple de brosse à âme courbe,
  • la figure 32 est une vue analogue à la figure 3 représentant partiellement l'âme d'une brosse torsadée à droite,
  • la figure 33 est une vue analogue à la figure 3, représentant partiellement une brosse dont les poils sont incurvés à la fois dans le sens circonférentiel et dans le sens axial,
  • les figures 34 à 51 représentent divers exemples de sections transversales de poils, parmi d'autres,
  • les figures 52 à 55 représentent des portions d'extrémité de poils, et
  • la figure 56 représente de manière schématique une âme double, les poils n'étant pas représentés.
The invention will be better understood on reading the detailed description which follows, of non-limiting examples of implementation thereof, and on examining the appended drawing, in which:
  • FIG. 1 is a schematic view in axial section of a packaging and application device comprising a brush according to the invention,
  • FIG. 2 is a view of the brush according to arrow II in FIG. 1, showing very schematically from the front the distal end of the brush,
  • FIG. 3 is a schematic and partial view showing bristles caught between the twisted branches of the core of the brush of FIG. 1,
  • FIG. 4 is a schematic view intended to illustrate an example of treatment which can be undergone by the brush,
  • FIG. 5 represents in cross section the processing member of FIG. 4,
  • FIG. 6 represents a variant of a treatment organ,
  • FIG. 7 illustrates the possibility of treating only part of the length of the brush,
  • FIGS. 8, 9 and 9A represent variants of treatment members,
  • FIGS. 10 to 12 illustrate different shapes of bristles which can be obtained, among others,
  • FIG. 13 illustrates the possibility of treating only one angular sector of the brush,
  • FIGS. 13A and 13B illustrate the possibility of treating at least two angular sectors of the brush differently,
  • FIG. 14 schematically represents in cross section a brush comprising short straight bristles and long curved bristles,
  • FIG. 15 schematically represents a brush envelope of cross section of substantially triangular shape,
  • FIG. 16 very schematically represents a front view of the distal end of a brush, the envelope of which has substantially the cross section corresponding to FIG. 15,
  • FIG. 17 schematically represents the envelope of a cross-section brush of generally square shape,
  • FIG. 18 is a very schematic front view of the distal end of a brush, the envelope of which has substantially the cross section of FIG. 17,
  • FIGS. 19 to 26 schematically represent in cross section other possible shapes for the envelope of the brush,
  • FIG. 27 illustrates the possibility of offsetting the core,
  • FIGS. 28 and 29 schematically represent a side view of the envelopes of brushes having a non-constant cross section,
  • FIG. 30 schematically represents the brush of FIG. 29 after the curvature of the core,
  • FIG. 31 is another example of a brush with a curved core,
  • FIG. 32 is a view similar to FIG. 3 partially showing the core of a brush twisted to the right,
  • FIG. 33 is a view similar to FIG. 3, partially showing a brush, the bristles of which are curved both in the circumferential direction and in the axial direction,
  • FIGS. 34 to 51 represent various examples of cross sections of bristles, among others,
  • FIGS. 52 to 55 represent end portions of bristles, and
  • Figure 56 shows schematically a double core, the bristles not being shown.

Le dispositif de conditionnement et d'application 1 représenté à la figure 1 comporte un récipient 2 contenant un produit P à appliquer sur les cils ou les sourcils, par exemple du mascara, et un applicateur 3 comportant une tige 4 d'axe longitudinal X pourvue à une extrémité 4a d'une brosse 5 et à l'extrémité opposée d'un organe de préhension 6 servant également à la fermeture du récipient 2. Ce dernier comporte un col 7 qui est fileté extérieurement, de façon à permettre le vissage de l'organe de préhension 6.The packaging and application device 1 represented in FIG. 1 includes a container 2 containing a product P to be applied to the eyelashes or the eyebrows, by example of mascara, and an applicator 3 comprising a rod 4 of longitudinal axis X provided at one end 4a with a brush 5 and at the opposite end with a grip 6 also serving to close the container 2. The latter has a neck 7 which is externally threaded, so as to allow the screwing of the gripping member 6.

Un organe d'essorage 8 est fixé à l'intérieur du col 7 pour essorer la tige 4 et la brosse 5 à leur sortie du récipient. Cet organe d'essorage 8 comporte une lèvre souple 9 définissant un orifice circulaire dont le diamètre correspond sensiblement à celui de la tige 4.A wiping member 8 is fixed inside the neck 7 to wipe the rod 4 and the brush 5 as they exit the container. This wiper member 8 has a flexible lip 9 defining a circular orifice whose diameter corresponds substantially to that of the rod 4.

Bien entendu, l'invention n'est pas limitée à l'utilisation d'un organe d'essorage particulier et d'autres organes d'essorage peuvent être utilisés, par exemple des organes d'essorage comportant un bloc de mousse et/ou définissant une ou plusieurs fentes, floquées ou non.Of course, the invention is not limited to the use of an organ special wiping and other wiping members can be used, for example wiping members comprising a foam block and / or defining one or more slits, flocked or not.

Dans l'exemple illustré, la tige 4 est rectiligne mais elle pourrait être courbe sans que l'on sorte du cadre de la présente invention.In the example illustrated, the rod 4 is straight but it could be curved without departing from the scope of the present invention.

En outre, la tige 4 est représentée comme étant fixe par rapport à l'organe de préhension 6 mais elle pourrait être mobile par rapport à ce dernier, par exemple grâce à une liaison articulée, notamment une rotule.In addition, the rod 4 is shown as being fixed relative to the member grip 6 but it could be movable relative to the latter, for example thanks to an articulated link, in particular a ball joint.

La brosse 5 comporte une âme 10 formée par deux brins métalliques torsadés, cette âme 10 étant fixée à une extrémité dans un logement de la tige 4, étant par exemple insérée à force dans ce logement. The brush 5 comprises a core 10 formed by two twisted metal strands, this core 10 being fixed at one end in a housing of the rod 4, being for example forced into this housing.

La brosse 5 comporte également des poils 11 qui sont maintenus par serrage entre les brins torsadés de l'âme 10, comme on peut le voir sur les figures 2 et 3. Sur la figure 3, l'âme est représentée observée de côté avec l'extrémité proximale de la brosse disposée du côté gauche et son extrémité distale du côté droit, la brosse étant dite « torsadée à gauche ».The brush 5 also includes bristles 11 which are held by clamping between the twisted strands of the core 10, as can be seen in FIGS. 2 and 3. On the Figure 3, the core is shown viewed from the side with the proximal end of the brush arranged on the left side and its distal end on the right side, the brush being said "Twisted to the left".

Conformément à un aspect de l'invention, la brosse 5 comporte au moins une portion comportant des poils non rectilignes, présentant une forme incurvée comme on peut le voir sur la figure 2 notamment. Dans l'exemple considéré, les poils 11 sont incurvés généralement dans le même sens circonférentiel, à savoir le sens anti-horaire sur la figure 2. Les poils sont incurvés, de sorte qu'ils sont non totalement rectilignes depuis le point où ils cessent d'être en contact avec l'âme jusqu'à leur extrémité libre.According to one aspect of the invention, the brush 5 comprises at least one portion with non-straight hair, having a curved shape as can see it in Figure 2 in particular. In the example considered, the hairs 11 are generally curved in the same circumferential direction, namely counterclockwise on Figure 2. The hairs are curved, so that they are not completely straight from the point where they cease to be in contact with the soul until their free end.

Les poils sont incurvés de façon à s'étendre depuis l'âme de manière orientée.The hairs are curved so as to extend from the core in an oriented manner.

Les poils incurvés peuvent s'étendre avec une orientation générale définie lors de la fabrication de la brosse. Les poils n'ont pas une orientation générale totalement aléatoire ou résultant seulement de l'effet du poids des poils.The curved hairs can extend with a general orientation defined during of making the brush. The hairs are not completely general in orientation random or resulting only from the effect of the weight of the hairs.

La courbure des poils peut être définie dans deux plans distincts au moins. Un poil peut avoir au moins une première courbure mesurée dans un premier plan et une seconde courbure mesurée dans un second plan. Le second plan peut être par exemple perpendiculaire au premier.The curvature of the hairs can be defined in at least two separate planes. A hair can have at least a first curvature measured in a foreground and a second curvature measured in a second plane. The second plane can be for example perpendicular to the first.

Un poil incurvé peut comporter, par exemple, une portion curviligne et une portion rectiligne ; cette portion rectiligne peut s'étendre par exemple sur moins de la moitié, du tiers, ou du quart de la longueur de la portion du poil qui s'étend à partir de l'âme jusqu' à son extrémité libre.A curved hair may include, for example, a curvilinear portion and a straight portion; this straight portion may extend for example over less than the half, a third, or a quarter of the length of the portion of the hair that extends from the soul to its free end.

Dans le cas où un poil incurvé comporte une portion rectiligne celle-ci peut s'étendre en direction de l'âme à partir d'un point situé par exemple à une distance, mesurée à partir de l'extrémité libre du poil, qui est inférieure à 3/4, à 2/3, ou à 1/2 de la longueur de la portion du poil qui s'étend à partir de l'âme jusqu'à son extrémité libre.In the case where a curved hair has a straight portion, this may extend towards the core from a point located for example at a distance, measured from the free end of the hair, which is less than 3/4, 2/3, or 1/2 of the length of the portion of the hair which extends from the core to its free end.

Dans le cas où un poil incurvé comporte une portion rectiligne, le poil peut présenter le long de cette portion une section transversale constante.In the case where a curved hair has a straight portion, the hair can present along this portion a constant cross section.

Pour réaliser la brosse des figures 1 à 3, on peut amener celle-ci comme illustré sur la figure 4 au contact d'un organe de traitement 20 comportant une surface 21 que les poils de la brosse peuvent toucher. To make the brush of Figures 1 to 3, you can bring it as illustrated in FIG. 4 in contact with a treatment member 20 comprising a surface 21 that the brush bristles can touch.

Les poils peuvent déjà être maintenus dans l'âme lorsqu'ils sont traités.The hairs can already be kept in the core when they are treated.

On peut partir par exemple d'une brosse de surface enveloppe cylindrique de révolution autour d'un axe Y, qui peut être confondu avec l'axe X précité, et entraíner la brosse en rotation autour de cet axe Y au contact de la surface 21. Cette dernière peut présenter un rayon de courbure correspondant sensiblement au rayon de la surface enveloppe de la brosse, de sorte que le contact entre la brosse 5 et l'organe de traitement 20 s'effectue selon un secteur angulaire de la brosse.It is possible, for example, to start from a cylindrical envelope surface brush of revolution around a Y axis, which can be confused with the aforementioned X axis, and cause the brush rotating around this axis Y in contact with surface 21. The latter can have a radius of curvature corresponding substantially to the radius of the surface envelope of the brush, so that the contact between the brush 5 and the treatment member 20 takes place along an angular sector of the brush.

Avant le traitement par l'organe de traitement 20, les poils de la brosse peuvent par exemple s'étendre de manière rectiligne depuis l'âme, avec une section transversale constante. Les poils de départ peuvent ainsi, par exemple, être des poils sans ondulations.Before treatment by the treatment member 20, the bristles of the brush can for example extend straight from the core, with a cross section constant. The starting bristles can thus, for example, be bristles without waves.

Dans l'exemple de la figure 4, l'organe de traitement 20 s'étend parallèlement à l'axe Y au moins sur toute la longueur de la brosse.In the example of Figure 4, the processing member 20 extends in parallel at least at the Y axis along the entire length of the brush.

Pour obtenir l'incurvation des poils représentée à la figure 2, la brosse est par exemple entraínée en rotation autour de l'axe Y dans le sens horaire lorsque l'on observe la brosse selon son axe Y avec l'extrémité distale 5a de la brosse vers l'avant, comme illustré sur la figure 4.To obtain the curvature of the bristles represented in FIG. 2, the brush is by example rotated around the Y axis clockwise when looking at the brush along its Y axis with the distal end 5a of the brush forward, as illustrated in figure 4.

L'organe de traitement 20 comporte des moyens de chauffage 22, par exemple une résistance électrique ou un conduit de circulation d'un fluide caloporteur, qui permettent de porter la surface 21 à une température suffisante pour entraíner une déformation permanente des poils 11 de la brosse après passage de ces derniers au contact de l'organe de traitement 20.The processing member 20 includes heating means 22, for example an electrical resistance or a circulation pipe for a heat transfer fluid, which allow to bring the surface 21 to a temperature sufficient to cause a permanent deformation of the bristles 11 of the brush after passage of the latter in contact of the processing unit 20.

La surface 21 est par exemple portée à une température de l'ordre de 150 °C pour une brosse comportant des poils en polyamide, notamment du polyamide 6/6.The surface 21 is for example brought to a temperature of the order of 150 ° C. for a brush comprising bristles of polyamide, in particular polyamide 6/6.

La brosse est par exemple entraínée en rotation à une vitesse de l'ordre de 1000 tours/minute dans le cas de poils en polyamide, notamment en polyamide 6/6, pour une température de la surface 21 de l'ordre de 150 °C, au moyen d'un support 30 accouplé à un moteur et comportant une mâchoire 31 permettant de saisir l'âme de la brosse.The brush is for example rotated at a speed of the order of 1000 revolutions / minute in the case of polyamide bristles, in particular polyamide 6/6, for a temperature of the surface 21 of the order of 150 ° C., by means of a coupled support 30 to a motor and comprising a jaw 31 making it possible to grasp the core of the brush.

L'organe de traitement 20 comporte un corps 23, définissant la surface 21, réalisé dans une matière présentant une conductivité thermique relativement mauvaise, par exemple en silicone, ce qui permet plus facilement aux poils venant en contact avec la surface 21 de ne pas adhérer à cette dernière et en particulier aux extrémités des poils de ne pas fondre ni de se souder entre elles. Seul un revêtement de surface de l'organe de traitement pourrait encore être réalisé dans une telle matière.The treatment member 20 comprises a body 23, defining the surface 21, made of a material having a relatively poor thermal conductivity, by example in silicone, which makes it easier for hairs coming into contact with the surface 21 not to adhere to the latter and in particular to the ends of the bristles to not melt or weld together. Only a surface coating of the organ of processing could still be carried out in such a material.

On a illustré aux figures 6 et 7 la possibilité pour l'organe de traitement 20 de ne pas s'étendre sur toute la longueur de la brosse, afin par exemple de ne traiter qu'une portion l' ou l " seulement de celle-ci, la portion l', respectivement l " s'étendant par exemple à partir de l'extrémité distale de la brosse, respectivement son extrémité proximale, sur plus ou moins de la moitié de la longueur totale de la brosse.FIGS. 6 and 7 illustrate the possibility for the treatment member 20 not to extend over the entire length of the brush, in order, for example, to treat only a portion l or l " only thereof. ci, the portion l ', respectively l " extending for example from the distal end of the brush, respectively its proximal end, over more or less than half of the total length of the brush.

La figure 6 illustre également la possibilité d'avoir un mouvement relatif dans le sens de l'axe Y de la brosse entre cette dernière et l'organe de traitement 20, afin par exemple d'orienter les poils vers l'extrémité proximale ou vers l'extrémité distale en plus d'une orientation éventuelle dans le sens circonférentiel.Figure 6 also illustrates the possibility of having relative movement in the direction of the Y axis of the brush between the latter and the processing member 20, so by example of orienting the hairs towards the proximal end or towards the distal end in addition a possible orientation in the circumferential direction.

On a illustré sur la figure 8 la possibilité pour l'organe de traitement 20 de présenter une surface 21 dont le rayon de courbure est par exemple supérieur au rayon du cylindre enveloppe de la brosse. En fonction du rayon de courbure de la surface 21, on comprend que l'on peut agir sur le temps de contact entre les poils de la brosse et la surface 21, pour une vitesse de rotation donnée de la brosse autour de son axe Y.FIG. 8 illustrates the possibility for the processing member 20 of present a surface 21 whose radius of curvature is for example greater than the radius of the brush casing cylinder. Depending on the radius of curvature of the surface 21, we understands that we can act on the contact time between the bristles of the brush and the surface 21, for a given speed of rotation of the brush around its axis Y.

La surface 21 peut présenter diverses formes et par exemple une forme non cylindrique de révolution, comme illustré à la figure 9.The surface 21 can have various shapes and for example a shape that is not cylindrical of revolution, as illustrated in figure 9.

Sur cette figure, la surface 21 comporte deux portions planes 21a et 21b formant un dièdre, et les poils de la brosse 5 peuvent venir en contact avec ces portions 21a et 21 b, tandis que les poils de la brosse situés entre ces portions 21 a et 21 b ne viennent pas en contact avec la surface 21.In this figure, the surface 21 has two flat portions 21a and 21b forming a dihedral, and the bristles of the brush 5 can come into contact with these portions 21a and 21 b, while the bristles of the brush located between these portions 21 a and 21 b do not come in contact with the surface 21.

L'organe de traitement 20 peut comporter, le cas échéant, comme illustré à la figure 9A, au moins deux parties disjointes 20a et 20b, définissant des surfaces chaudes respectives 21a et 21b avec lesquelles les poils de la brosse peuvent venir en contact.The treatment member 20 may comprise, if necessary, as illustrated in the FIG. 9A, at least two disjoint parts 20a and 20b, defining hot surfaces 21a and 21b respectively with which the bristles of the brush can come into contact.

En fonction du temps de contact avec la surface chauffée 21, ainsi que notamment de la vitesse de rotation de la brosse, de la pression de contact des poils sur cette surface 21, des forces de frottement entre les poils et la surface 21, ainsi que la nature des poils de la brosse, on peut modifier plus ou moins la forme initiale rectiligne des poils et notamment obtenir des formes plus ou moins incurvées, comme illustré sur les figures 10 à 12. Depending on the contact time with the heated surface 21, as well as in particular the speed of rotation of the brush, the contact pressure of the bristles on this surface 21, frictional forces between the bristles and the surface 21, as well as the nature brush bristles, you can more or less modify the initial rectilinear shape of the bristles and in particular obtain more or less curved shapes, as illustrated in the figures 10 to 12.

Dans les exemples des figures 4, 6, 8, 9 et 9A, la brosse peut être entraínée en rotation autour de l'axe Y et l'organe de traitement 20 ne pas être rotatif.In the examples of Figures 4, 6, 8, 9 and 9A, the brush can be driven in rotation about the Y axis and the processing member 20 not be rotatable.

En variante, c'est par exemple l'organe de traitement 20 qui peut être entraíné en rotation et la brosse 5 qui est fixe, afin de traiter une partie seulement de la circonférence de la brosse, laquelle peut ainsi présenter comme illustré à la figure 13 un ensemble s' de poils incurvés sur une partie de sa circonférence et un ensemble s" de poils rectilignes sur le reste de sa circonférence.Alternatively, it is for example the processing member 20 which can be driven in rotation and the brush 5 which is fixed, in order to treat only part of the circumference of the brush, which may thus have, as illustrated in FIG. 13, a set of curved hairs on a part of its circumference and a set of hairs straight across the rest of its circumference.

On peut encore, par exemple, traiter les poils d'une certaine manière sur un secteur s' de la circonférence de la brosse et d'une autre manière sur un secteur s" différent. Par exemple, on peut traiter les poils sur le secteur s' de manière à les orienter dans le sens horaire et les traiter dans le secteur s" de manière à les orienter dans le sens contraire.We can still, for example, treat hairs in a certain way on a sector s' of the circumference of the brush and in another way on a sector s " different. For example, we can treat the hairs on the sector so as to orient them clockwise and process them in sector s "so as to orient them clockwise opposite.

Dans le cas d'une brosse dont l'enveloppe présente en section transversale une forme non circulaire, on peut par exemple traiter différemment des côtés de la brosse. Par exemple, dans le cas de la brosse de la figure 13B, on peut traiter les côtés de la brosse de manière à orienter tous les poils d'un même côté dans un même sens, l'orientation des poils s'inversant lorsque l'on passe d'un côté au suivant.In the case of a brush whose envelope has in cross section a non-circular shape, one can for example treat differently the sides of the brush. Through example, in the case of the brush of figure 13B, one can treat the sides of the brush of so as to orient all the hairs on the same side in the same direction, the orientation of the hairs reversing when going from one side to the next.

La brosse peut être réalisée avec un mélange de poils longs 11a et de poils courts 11b et être traitée de manière à ce que seulement les poils longs 11a viennent en contact avec la surface chauffée 21 de manière à prendre une forme incurvée, les poils courts 11b n'étant pas chauffés et restant rectilignes, comme illustré à la figure 14.The brush can be made with a mixture of long bristles 11a and bristles short 11b and be treated so that only the long hairs 11a come into contact with the heated surface 21 so as to take a curved shape, the hairs short 11b not being heated and remaining rectilinear, as illustrated in FIG. 14.

La brosse peut présenter une surface enveloppe, définie par les extrémités libres des poils, de section transversale non circulaire.The brush may have an envelope surface, defined by the ends free of hairs, of non-circular cross section.

A titre d'exemple, on a représenté sur la figure 15 une surface enveloppe de section transversale sensiblement prismatique, par exemple sensiblement triangulaire. Pour une telle brosse, en faisant tourner la brosse autour de son axe Y au contact d'une surface chauffée, on peut obtenir une forme incurvée des poils, par exemple dans le sens anti-horaire, tel qu'illustré à la figure 16.By way of example, FIG. 15 shows an envelope surface of substantially prismatic cross section, for example substantially triangular. For such a brush, by rotating the brush around its Y axis in contact with a surface heated, one can obtain a curved shape of the hairs, for example in the anti-clockwise direction, as shown in Figure 16.

On a représenté à la figure 17 une surface enveloppe de section transversale sensiblement carrée. FIG. 17 shows a cross-sectional envelope surface substantially square.

Pour une telle brosse, on peut obtenir par exemple une forme incurvée des poils telle qu'illustrée à la figure 18, les poils étant par exemple orientés dans le sens anti-horaire comme on le voit sur cette figure.For such a brush, one can obtain for example a curved shape of the bristles as illustrated in FIG. 18, the bristles being for example oriented anti-clockwise as seen in this figure.

On a représenté sur les figures 19 à 26 d'autres formes possibles encore de sections transversales pour la surface enveloppe de la brosse, parmi d'autres.FIGS. 19 to 26 show other possible forms of cross sections for the envelope surface of the brush, among others.

La figure 19 représente ainsi une section transversale de forme sensiblement pentagonale et la figure 20 de forme sensiblement hexagonale.FIG. 19 thus represents a cross section of substantially shaped pentagonal and Figure 20 of substantially hexagonal shape.

La figure 21 représente une section transversale de forme sensiblement ovale.Figure 21 shows a cross section of substantially oval shape.

La figure 22 illustre la possibilité de réaliser la brosse avec au moins une encoche 41, laquelle peut être concave vers l'extérieur comme illustré, cette encoche présentant une section transversale constante ou non lorsque l'on se déplace le long de la brosse.FIG. 22 illustrates the possibility of making the brush with at least one notch 41, which can be concave outward as illustrated, this notch with a constant cross section or not when moving along the brush.

La figure 23 illustre la possibilité de réaliser au moins une facette 42 sensiblement plane sur la brosse.FIG. 23 illustrates the possibility of producing at least one facet 42 substantially flat on the brush.

La figure 24 illustre la possibilité de réaliser la brosse avec au moins un cran 43, en l'espèce trois.Figure 24 illustrates the possibility of making the brush with at least one notch 43, in this case three.

La figure 25 représente une variante de réalisation d'une brosse comportant deux crans 43 et la figure 26 correspond à une variante de réalisation n'en comportant qu'un seul.FIG. 25 represents an alternative embodiment of a brush comprising two notches 43 and FIG. 26 corresponds to an alternative embodiment not comprising only one.

L'âme 10 peut être centrée ou non par rapport au contour de la surface enveloppe, lorsque la brosse est observée en section transversale.The core 10 can be centered or not relative to the contour of the surface envelope, when the brush is observed in cross section.

A titre d'illustration, on a représenté à la figure 27 une brosse dont l'âme est excentrée.By way of illustration, FIG. 27 shows a brush whose core is eccentrically.

La brosse peut présenter une section transversale constante ou non, et une âme rectiligne ou non.The brush can have a constant cross section or not, and a core straight or not.

Lorsque l'âme est rectiligne, soit parce que la brosse finale présente une âme rectiligne, soit parce que l'âme a été redressée et rendue rectiligne pour les besoins de l'observation, la brosse peut présenter une section transversale passant par un extremum 45, comme illustré à la figure 27, lequel peut être un maximum ou un minimum.When the core is straight, either because the final brush has a core straight, either because the soul has been straightened and made straight for the needs of observation, the brush may have a cross section passing through an extremum 45, as illustrated in FIG. 27, which can be a maximum or a minimum.

La brosse peut encore présenter, comme illustré à la figure 29, une section transversale passant par un maximum 46 et un minimum 47. The brush may also have, as illustrated in FIG. 29, a section transverse passing through a maximum 46 and a minimum 47.

L'âme peut être incurvée de manière par exemple à redresser un bord 48 de la brosse, comme illustré aux figures 29 et 30.The core can be curved so as for example to straighten an edge 48 of the brush, as shown in Figures 29 and 30.

La brosse 5 peut encore comporter une âme qui comporte un coude 49 à proximité de l'extrémité distale 4a de la tige 4, comme illustré à la figure 31, la portion de l'âme portant les poils pouvant être rectiligne.The brush 5 may also include a core which has an elbow 49 to near the distal end 4a of the rod 4, as illustrated in FIG. 31, the portion of the core carrying the hairs can be rectilinear.

Dans tous les exemples qui précèdent, la brosse peut encore être torsadée à droite, comme illustré à la figure 32.In all of the above examples, the brush can still be twisted to right, as shown in Figure 32.

On a représenté à la figure 33 des poils orientés à la fois dans le sens circonférentiel et dans le sens axial, suivant la flèche de cette figure.There is shown in Figure 33 hairs oriented both in the direction circumferential and in the axial direction, along the arrow in this figure.

Les poils utilisés peuvent présenter diverses sections transversales, autres que circulaires.The bristles used may have various cross sections, other than circular.

On peut notamment utiliser des poils présentant en section transversale l'une des formes représentée aux figures 34 à 51 de manière schématique, par exemple une forme circulaire avec un méplat comme illustré sur la figure 34, aplatie comme illustré à la figure 35, étoilée, par exemple en forme de croix comme illustré à la figure 36 ou à trois branches comme illustré sur la figure 37, de U comme représenté à la figure 38, de H comme représenté à la figure 39, de T comme représenté à la figure 40, de V comme représenté à la figure 41, une forme évidée, par exemple circulaire comme représenté à la figure 42 ou prismatique, notamment carrée comme représenté à la figure 43, formant des ramifications, par exemple en forme de flocon de neige comme illustré à la figure 44, une section prismatique par exemple triangulaire comme illustré à la figure 45, carrée comme représenté à la figure 46 ou hexagonale comme représenté à la figure 47, ou une forme oblongue, notamment lenticulaire comme représenté à la figure 48 ou en forme de sablier comme représenté à la figure 49.One can in particular use bristles having in cross section one shapes shown in Figures 34 to 51 schematically, for example a circular shape with a flat as shown in Figure 34, flattened as shown in figure 35, star-shaped, for example in the shape of a cross as illustrated in figure 36 or three branches as illustrated in Figure 37, of U as shown in Figure 38, of H as shown in Figure 39, from T as shown in Figure 40, from V as shown in Figure 41, a hollow shape, for example circular as shown in the Figure 42 or prismatic, in particular square as shown in Figure 43, forming ramifications, for example in the form of a snowflake as illustrated in FIG. 44, a prismatic section for example triangular as illustrated in figure 45, square like shown in Figure 46 or hexagonal as shown in Figure 47, or a shape oblong, especially lenticular as shown in Figure 48 or hourglass shaped as shown in Figure 49.

On peut aussi utiliser des poils ayant des parties articulées les unes par rapport aux autres comme représenté à la figure 50. On peut encore utiliser des poils présentant au moins une rainure capillaire 60 comme illustré à la figure 51. Les poils peuvent, le cas échéant, avant d'être incurvés, subir un traitement destiné à former à leur extrémité une boule 61 comme illustré à la figure 52 ou des fourches 62 comme illustré à la figure 53.It is also possible to use bristles having parts articulated with respect to each other. to others as shown in Figure 50. It is also possible to use bristles having minus a capillary groove 60 as illustrated in FIG. 51. The bristles may, if necessary if necessary, before being curved, undergo a treatment intended to form at their end a ball 61 as illustrated in FIG. 52 or forks 62 as illustrated in FIG. 53.

On peut aussi utiliser des poils floqués comme illustré à la figure 54 ou encore des poils réalisés par extrusion d'une matière plastique comportant une charge de particules 63, afin de conférer un micro-relief à la surface des poils comme illustré à la figure 54 ou leur conférer des propriétés magnétiques ou autres.You can also use flocked bristles as illustrated in Figure 54 or bristles made by extruding a plastic material comprising a charge of particles 63, in order to impart a micro-relief to the surface of the bristles as illustrated in the figure 54 or give them magnetic or other properties.

Les poils peuvent encore être réalisés avec un matériau présentant des propriétés favorisant le glissement.The bristles can also be made with a material having properties promoting sliding.

Les poils peuvent être réalisés dans des matières synthétiques choisies par exemple parmi le polyéthylène, les polyamides notamment PA6, PA6/6, PA6/10 ou PA6/12, PA11, notamment le RILSAN® , un polymère HYTREL® -PEBAX® et autres polymères thermoplastiques.The bristles can be made from synthetic materials chosen by example among polyethylene, polyamides in particular PA6, PA6 / 6, PA6 / 10 or PA6 / 12, PA11, in particular RILSAN®, a HYTREL® -PEBAX® polymer and others thermoplastic polymers.

Bien entendu, l'invention n'est pas limitée aux exemples qui viennent d'être décrits.Of course, the invention is not limited to the examples which have just been described.

On peut notamment réaliser l'âme autrement, par exemple utiliser une âme double, formée par deux âmes élémentaires 10' et 10" torsadées entre elles comme illustré à la figure 56. Chaque âme élémentaire 10', 10" de cette figure comporte deux brins torsadés ensemble et enserrant des poils.In particular, the core can be made differently, for example using a core double, formed by two elementary cores 10 'and 10 "twisted together as illustrated in FIG. 56. Each elementary core 10 ′, 10 "in this figure has two strands twisted together and enclosing hairs.

On peut utiliser pour réaliser l'âme des brins métalliques de section circulaire ou non, gainés ou non.Metallic strands of circular section can be used to make the core or not, sheathed or not.

On peut combiner entre elles les caractéristiques des différents modes de réalisation qui viennent d'être décrits.We can combine the characteristics of the different modes of realization which have just been described.

Dans toute la description, y compris les revendications, l'expression « comportant un » doit être comprise comme étant synonyme de « comportant au moins un », sauf si le contraire est spécifié.Throughout the description, including the claims, the expression "Comprising a" should be understood as being synonymous with "comprising at least a ”, unless otherwise specified.

Claims (24)

Brosse (5) pour l'application d'un produit sur les fibres kératiniques, comportant : une âme (10), des poils (11) supportés par l'âme et réalisés autrement que par moulage par injection avec l'âme, la brosse comportant au moins une portion comportant des poils incurvés s'étendant de manière orientée à partir de l'âme.Brush (5) for applying a product to keratin fibers, comprising: a soul (10), bristles (11) supported by the core and produced otherwise than by injection molding with the core, the brush comprising at least a portion comprising curved bristles extending in an oriented manner from the core. Brosse selon la revendication 1, caractérisée par le fait qu'elle comporte au moins une portion comprenant des poils incurvés, généralement orientés dans le même sens circonférentiel autour de l'âme.Brush according to claim 1, characterized in that it comprises at least a portion comprising curved bristles, generally oriented in the same circumferential direction around the core. Brosse selon la revendication précédente, caractérisée par le fait que l'âme est torsadée à gauche.Brush according to the preceding claim, characterized in that the core is twisted to the left. Brosse selon la revendication 3, caractérisée par le fait que les poils sont orientés, lorsque l'on observe la brosse selon son axe depuis son extrémité distale vers son extrémité proximale, dans le sens horaire.Brush according to claim 3, characterized in that the bristles are oriented, when the brush is observed along its axis from its distal end towards its proximal end, clockwise. Brosse selon la revendication 3, caractérisée par le fait que les poils sont orientés, lorsque l'on observe la brosse selon son axe depuis son extrémité distale vers son extrémité proximale, dans le sens anti-horaire.Brush according to claim 3, characterized in that the bristles are oriented, when the brush is observed along its axis from its distal end towards its proximal end, in the counterclockwise direction. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait que la brosse comporte au moins une portion comportant des poils incurvés orientés généralement dans le même sens axial.Brush according to any one of the preceding claims, characterized in that the brush comprises at least one portion comprising curved bristles oriented generally in the same axial direction. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comporte au moins 20 % de ses poils qui sont incurvés, voire au moins 50 %, notamment au moins 80 %.Brush according to any one of the preceding claims, characterized in that it comprises at least 20% of its bristles which are curved, or even at least 50%, in particular at least 80%. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comporte entre 5 et 60 poils par spire.Brush according to any one of the preceding claims, characterized in that it comprises between 5 and 60 bristles per turn. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait que les poils sont réalisés dans une matière thermoplastique.Brush according to any one of the preceding claims, characterized in that the bristles are made of a thermoplastic material. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait que le diamètre des poils est compris entre 5/100 et 35/100 mm. Brush according to any one of the preceding claims, characterized in that the diameter of the bristles is between 5/100 and 35/100 mm. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait que la longueur des poils est comprise entre 1 et 7 mm, notamment entre 2 et 5 mm.Brush according to any one of the preceding claims, characterized in that the length of the bristles is between 1 and 7 mm, in particular between 2 and 5 mm. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comporte un mélange de poils ayant des longueurs différentes.Brush according to any one of the preceding claims, characterized in that it comprises a mixture of bristles having different lengths. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comporte des poils ayant des natures différentes.Brush according to any one of the preceding claims, characterized in that it comprises bristles having different natures. Brosse selon la revendication 11, caractérisée par le fait que seuls les poils les plus longs de la brosse présentent une forme incurvée, les autres s'étendant de manière rectiligne depuis l'âme.Brush according to claim 11, characterized in that only the longest bristles of the brush have a curved shape, the others extending in a straight line from the core. Brosse selon la revendication 13, caractérisée par le fait qu'elle comporte des poils réalisés dans des matières ayant des températures de transition vitreuse différentes, seuls les poils réalisés dans la matière ayant la plus faible température de transition vitreuse étant incurvés.Brush according to claim 13, characterized in that it comprises bristles made of materials having different glass transition temperatures, only the bristles made of the material having the lowest glass transition temperature being curved. Brosse selon l'une quelconque des revendications précédentes, caractérisée par le fait que la courbure conférée aux poils incurvés se définit dans au moins deux plans distincts.Brush according to any one of the preceding claims, characterized in that the curvature imparted to the curved bristles is defined in at least two separate planes. Procédé de fabrication d'une brosse pour l'application d'un produit sur les fibres kératiniques, notamment les cils ou les sourcils, comportant l'étape suivante : incurver des poils de la brosse par contact avec une surface chaude, notamment une surface en mouvement relatif par rapport à la brosse. Method for manufacturing a brush for applying a product to keratin fibers, in particular the eyelashes or the eyebrows, comprising the following step: bending the bristles of the brush by contact with a hot surface, in particular a surface in relative movement relative to the brush. Procédé selon la revendication précédente, caractérisé par le fait que la surface (21) est de préférence définie par un matériau présentant une conductivité thermique relativement faible, notamment un silicone, un polymère fluoré, notamment un polytétrafluoroéthylène, ou une matière minérale autre qu'un métal, notamment du graphite.Method according to the preceding claim, characterized in that the surface (21) is preferably defined by a material having a relatively low thermal conductivity, in particular a silicone, a fluorinated polymer, in particular a polytetrafluoroethylene, or a mineral material other than a metal, especially graphite. Procédé selon l'une des revendications 17 et 18, caractérisé par le fait que la brosse est entraínée en rotation autour de son axe (Y).Method according to one of claims 17 and 18, characterized in that the brush is rotated about its axis (Y). Procédé selon l'une quelconque des revendications 17 à 19, caractérisé par le fait que la surface chaude (21) est définie par un organe de traitement (20).Method according to any one of Claims 17 to 19, characterized in that the hot surface (21) is defined by a treatment member (20). Procédé selon la revendication 20, caractérisé par le fait que l'organe de traitement (20) est entraíné en rotation, la brosse étant fixe. Method according to claim 20, characterized in that the treatment member (20) is rotated, the brush being fixed. Procédé selon l'une quelconque des revendications 17 à 21, caractérisé par le fait que la surface chaude (21) est déplacée axialement durant le traitement.Method according to any one of Claims 17 to 21, characterized in that the hot surface (21) is moved axially during the treatment. Procédé selon l'une quelconque des revendications 17 à 22, caractérisé par le fait que les poils sont incurvés après leur insertion sur l'âme de la brosse.A method according to any one of claims 17 to 22, characterized in that the bristles are curved after their insertion on the core of the brush. Machine de fabrication d'une brosse pour l'application d'un produit sur les fibres kératiniques, cette machine servant à la mise en oeuvre du procédé défini dans l'une des revendications 17 à 23, cette machine comportant : un support (30, 31) agencé pour supporter au moins une brosse (5), un organe (20) de traitement d'au moins cette brosse, comportant : une surface (21) agencée pour venir au contact de poils de la brosse, des moyens de chauffage (22) pour chauffer cette surface, et des moyens pour produire un déplacement relatif du support et de l'organe de traitement afin de modifier d'une manière prédéfinie l'orientation des poils de la brosse venant au contact de la surface (21) de l'organe de traitement (20). Machine for manufacturing a brush for applying a product to keratin fibers, this machine being used for implementing the method defined in one of claims 17 to 23, this machine comprising: a support (30, 31) arranged to support at least one brush (5), a member (20) for processing at least this brush, comprising: a surface (21) arranged to come into contact with bristles of the brush, heating means (22) for heating this surface, and means for producing a relative displacement of the support and of the treatment member in order to modify in a predefined manner the orientation of the bristles of the brush coming into contact with the surface (21) of the treatment member (20) .
EP04290270A 2003-02-04 2004-02-02 Brush for the application of products to the eyelashes or eyebrows Expired - Lifetime EP1444918B1 (en)

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EP06014214A EP1707072B1 (en) 2003-02-04 2004-02-02 Brush for the application of products to the eyelashes or eyebrows

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FR0301269A FR2850549B1 (en) 2003-02-04 2003-02-04 BRUSH FOR APPLYING A PRODUCT ON LACES OR EYEBROWS
FR0301269 2003-02-04

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CN (1) CN100403960C (en)
AT (2) ATE354301T1 (en)
BR (1) BRPI0400342A (en)
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DE602004004822D1 (en) 2007-04-05
ATE354301T1 (en) 2007-03-15
US20090139535A2 (en) 2009-06-04
EP1707072A1 (en) 2006-10-04
US20040168698A1 (en) 2004-09-02
FR2850549B1 (en) 2006-07-14
EP1444918B1 (en) 2007-02-21
CN1518924A (en) 2004-08-11
US7654270B2 (en) 2010-02-02
FR2850549A1 (en) 2004-08-06
DE602004004822T2 (en) 2007-11-15
KR20040071617A (en) 2004-08-12
EP1707072B1 (en) 2008-11-05
ES2317372T3 (en) 2009-04-16
BRPI0400342A (en) 2004-09-14
JP2004237098A (en) 2004-08-26
ES2282817T3 (en) 2007-10-16
JP3944488B2 (en) 2007-07-11
DE602004017647D1 (en) 2008-12-18
CN100403960C (en) 2008-07-23
ATE413118T1 (en) 2008-11-15
KR100553983B1 (en) 2006-02-22

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