CN106496673A - A kind of latex brassiere mold cup - Google Patents
A kind of latex brassiere mold cup Download PDFInfo
- Publication number
- CN106496673A CN106496673A CN201610936179.0A CN201610936179A CN106496673A CN 106496673 A CN106496673 A CN 106496673A CN 201610936179 A CN201610936179 A CN 201610936179A CN 106496673 A CN106496673 A CN 106496673A
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- China
- Prior art keywords
- natural emulsion
- rubber
- mold cup
- latex
- formula
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
- C08L7/02—Latex
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C3/00—Brassieres
- A41C3/12—Component parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention provides a kind of latex brassiere mold cup, and which is prepared by natural emulsion and synthetic rubber;The weight average molecular weight of the natural emulsion is 45,000 70000;The elastomeric weight average molecular weight is 30,000 150000;Which has the very strong compatibility to nonpolar synthetic rubber, and plasticity retention percentage is high, and excellent in mechanical performance, almost without anaphylactic reaction.
Description
Technical field
The present invention relates to natural emulsion field, the brassiere mold cup for more particularly to being prepared by natural emulsion is more specific
Ground is related to the bra prepared by natural emulsion.
Technical background
Natural emulsion is the product of para ruber secretion, is a kind of biosynthetic high polymer water-based colloid system, with
Natural materials of the poly- cis-1,4-isoprene for main body.Natural emulsion intensity is high, good film-forming property, and product elasticity is big, and creep is little,
It has been widely used in various fields of recent life.But natural emulsion is contained within the protein of 1-4%, this proteinoid can be adsorbed in rubber
The surface of micelle, which can cause rubber easily mouldy, while this proteinoid can become anaphylactogen, cause allergic reaction.
Meanwhile, in the manufacturing process of natural latex products, surface can produce viscosity, not easy processing and use.
Synthetic rubber is the also referred to as synthetic elastomer by the strong flexible polymer of synthetic, is one of three big synthetic materials.
There is the performance of minority kind similar to natural rubber in synthetic rubber, great majority are different from natural rubber;And synthetic rubber is general
Be not as comprehensive as natural rubber in performance, but it has the property such as high resiliency, insulating properties, air-tightness, oil resistant, high temperature resistant or low temperature
Can, these performances are that natural rubber cannot match in excellence or beauty.Therefore, natural emulsion and synthetic rubber are blended to make up mutual shortcoming
It is a kind of trend.
But as respective nature difference causes the compatibility between the two to have differences, while the allergy of natural emulsion
Property cause natural emulsion and elastomeric product to need further raising.And natural emulsion is led in bra by its advantage
Domain has very strong advantage.The design of brassiere mold cup be bra design emphasis, brassiere mold cup design in model, material, pressure
The factors such as power, radian affect udder health, the comfortableness of bra, fitness, plastomer aesthetic feeling etc..
For the problems referred to above, the present invention provides a kind of latex brassiere mold cup, and which is prepared into by natural emulsion and synthetic rubber
Arrive.
Content of the invention
For the problems referred to above, the present invention provides a kind of latex brassiere mold cup, and which is prepared into by natural emulsion and synthetic rubber
Arrive.
Used as one embodiment of the present invention, the weight average molecular weight of the natural emulsion is 45000-70000.
Used as one embodiment of the present invention, the elastomeric weight average molecular weight is 30000-150000.
Used as one embodiment of the present invention, the material in the natural emulsion and formula (1) is carried out at 70-130 DEG C
Pretreatment;The structural formula of formula (1) is as follows:
Wherein, the R1、R2、R3And R4In at least two be selected from polar group;The n+o<M+p, and p is maximum
Number.
The step of pretreatment is to stir natural emulsion and formula (1) material in a solvent.
Used as one embodiment of the present invention, the polar group is selected from carboxylic acid group, sulfonic group, aldehyde radical, hydroxyl, ammonia
One kind in base, ester group.
Used as one embodiment of the present invention, the natural emulsion and formula (1) carry out 0.2-6 hours at 70-130 DEG C
Pretreatment.
Used as one embodiment of the present invention, the natural emulsion and formula (1) carry out 0.5-4 hours at 85-110 DEG C
Pretreatment.
Weight ratio as one embodiment of the present invention, the natural emulsion and formula (1) is 10:(0.01-2).
Used as one embodiment of the present invention, the natural emulsion and elastomeric weight ratio are 10:(1-3).
Used as one embodiment of the present invention, the synthetic rubber is non-polar rubber.
A second aspect of the present invention provides the purposes of above-mentioned latex mold cup, and which is used for preparing bra.
A third aspect of the present invention provides a kind of latex bra, and which includes above-mentioned latex mold cup.
Specific embodiment
The participation in the election detailed description for being preferable to carry out method of the invention below and including embodiment this can be more easily understood
Bright content.Unless otherwise defined, all technology used herein and scientific terminology have common with art of the present invention
The identical implication that technical staff is generally understood that.When there is contradiction, the definition in this specification is defined.
As used herein term " by ... prepare " synonymous with "comprising".Term "comprising" used herein, " including ",
" with ", " containing " or its any other deformation, it is intended that cover including for non-exclusionism.For example, the combination comprising listed elements
Thing, step, method, product or device are not necessarily solely those key elements, but can include other not expressly listed key element or
The intrinsic key element of this kind of compositionss, step, method, product or device.
Conjunction " Consists of " excludes any key element that does not point out, step or component.If be used in claim, this
It is closed that phrase will make claim so as to not comprising the material in addition to the material that those describe, but relative normal
Except rule impurity.When phrase " Consists of " is occurred in be rather than immediately following after theme in the clause of claim main body,
Which is only limited to the key element described in the clause;Other key elements are not excluded outside as the overall claim.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value is limited, this is appreciated that and specifically discloses by any range limit or preferred value and any scope
All scopes that arbitrary pairing of lower limit or preferred value is formed, regardless of whether whether the scope separately discloses.For example, when open
During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numerical range is described herein, unless otherwise indicated, otherwise the scope is intended to include its end
Value and all integers within the range and fraction.
Singulative includes that plural number discusses object, unless the context clearly dictates otherwise." optional " or " arbitrarily
A kind of " refer to that the item for describing thereafter or event may or may not occur, and the description include situation that event occurs and
The situation that event does not occur.
Approximate term in specification and claims is used for modifying quantity, represents that the present invention is not limited to this concrete
Quantity, also includes the acceptable part without causing the correction of the change of related basic function being close to the quantity.Phase
Answer, with " about ", a numerical value of the modification such as " about ", mean and the invention is not restricted to the exact numerical.In some examples, approximately
Term likely corresponds to the precision of the instrument of measured value.In present specification and claims, scope is limited can be with
Combination and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
Additionally, key element of the present invention or the indefinite article " one kind " before component and " one " are to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore " one " or " one kind " should be read as including one or at least one, and odd number
The key element or component of form also includes plural form, unless the obvious purport of the quantity refers to singulative.
" polymer " means the polymerizable compound prepared by the monomer by the identical or different type that is polymerized.Generic term
" polymer " includes term " homopolymer ", " copolymer ", " terpolymer " and " copolymer ".
" copolymer " means the polymer prepared by least two different monomers that are polymerized.Generic term " copolymer " includes
(which is general with term " terpolymer " for term " copolymer " (its typically in order to refer to the polymer prepared by two kinds of different monomers)
In order to refer to the polymer prepared by three kinds of different monomers).Which is also comprising the polymerization manufactured by four or more kinds of monomers of polymerization
Thing." blend " means the polymerization that two or more polymer is mixed by physics or chemistry method jointly and formed
Thing.
The present invention provides a kind of latex brassiere mold cup, and which is prepared by natural emulsion and synthetic rubber.
Bra
Breast is unique organ without skeletal support on female body, and the glamour of feminine charm is located, and it is by breast
Gland, fat and skin composition, its size moulding vary with each individual.Modern female can make double breasts reduce gravity by bra to be caused
Sagging impact, mould fine figure.Therefore, bra will also be born the double breasts of pop-up and adjust the work(of its moulding when wearing
Energy.Bra is that women medicated clothing the most next to the skin, bra also have decoration concurrently in addition to playing the role of " covering " breast and protection breast
With the effect of beautification chest, consumer for the quality of bra product, level of comfort, healthy and beautiful etc. require more and more.
The cup part of bra be contain and support breast, directly act on female chest, to mould female chest type most direct
Part, therefore, the design of brassiere mold cup is the emphasis of bra design, and various factors in mold cup design and combinations thereof affects text
Pressure size, pressure distribution when breast is worn, and then affect udder health, the comfortableness of bra, fitness, plastomer aesthetic feeling
Deng.The mold cup part of bra be contain and support breast, directly act on female chest, adapt to breast rock, comply with skin
Strain and sliding, the most direct part of female chest type is moulded, play very important effect.
Mold cup type bra
Bra at this stage is broadly divided into clip bowl type bra and mold cup type bra.Mold cup type bra is exactly by plastic material
Final bra is being processed through follow-up technique by the hot-forming cup for being processed into bra of High Temperature High Pressure or entirety
Finished product.During mold cup type bra is from the Design of digital of mold cup to final hot-forming processing and manufacturing, will pass through to calculate
The Exact calculation of machine.Meanwhile, mold cup type bra is extensively welcome by current Underwear market because of its good aesthetic property and feature,
It can not only support and protect the breast of women, it is to avoid concussion when exterior injury and activity to breast, even more important
It is that it can effectively prevent mastoptosiss and extend out, so as to mould good breast shape, increases the self-confidence of women.
Bra generally comprises cup, shoulder belt, brace, and the cup lower edge is connected with bottom sheet, the cup include outer lining,
Mold cup and inner liner and support bar.
In the present invention, the mold cup is prepared by natural emulsion.
Modified natural emulsion
Natural emulsion is a kind of outward appearance as the milky white liquid of milk.Industrial natural emulsion is essentially from Brazilian rubber
Gum.Natural emulsion is by rubber hydrocarbon, protein, lipids, the hydrotrope, ash, inorganic salt, water, inorganic salt and few
The ribonucleic acid and thiol class substance of amount.Most of latex particles are spherical, also have the latex particle on some rubber trees to be
Pyriform, the particle diameter of latex particle is about distributed in 15nm-3 μm, and latex particle internal layer be content 94% or so cis
Isosorbide-5-Nitrae-polyisoprene rubber hydrocarbon, the outer layer of latex particle are coated by materials such as the protein phospholipid of content about 6%.Natural
In latex, hydrocarbons and protein are susceptible to branching reaction and cross-linking reaction.
In natural emulsion, total solids content is typically in 20-40%;Its relative density is in 0.96-0.98, the phase of fresh latex
It is to be together decided on by the relative density of milk surum and the relative density of rubber hydrocarbon to density;The viscosity of natural emulsion is about 12-
15mPa s (solid content is 35%);Its surface tension is about 38-40mN/m (solid content is 38-40%).
Although natural emulsion has green non-pollution, there is good biological degradability, and which has intensity high, film property
Good, product elasticity is big, the advantage such as creep is little, has been widely used in various fields of recent life.But, generally existing in natural emulsion
The protein for causing human allergy to react, its reason are that protein can be migrated to product in the product of manufacture natural emulsion
Surface, exactly this migrates and can cause allergic reaction to the protein of product surface.
The polyisoprene that natural emulsion, i.e. para-caoutchouc are produced is cis- Isosorbide-5-Nitrae-polyisoprene, and in gutta-percha, also
It is in Ba Lata glue, to be mainly trans- 1,4- polyisoprene.Cis- 1,4- polyisoprene and trans- 1,4- polyisoprene
The configuration of strand is completely contradicted.Under room temperature, cis- Isosorbide-5-Nitrae-polyisoprene is soft elastomer, and trans- Isosorbide-5-Nitrae-poly- isoamyl two
Alkene then has the Crystalline plastics of high rigidity and high tensile.
Used as one embodiment of the present invention, the weight average molecular weight of heretofore described natural emulsion is 45000-
70000, more preferably 50000-65000.
Weight average molecular weight be based on gel permeation chromatography (hreinafter referred to as " GPC ".) determine and carry out polystyrene and change
Value after calculation.The condition determination of GPC for example, can be tested by the way of following and be obtained using the conventional condition test in this area.
Post:Following posts are connected in series and are used.
" TSKgelG5000 " (7.8mmI.D. × 30cm) × 1 piece
" TSKgelG4000 " (7.8mmI.D. × 30cm) × 1 piece
" TSKgelG3000 " (7.8mmI.D. × 30cm) × 1 piece
" TSKgelG2000 " (7.8mmI.D. × 30cm) × 1 piece
Detector:RI (differential refractometer);Column temperature:40℃;Eluent:Tetrahydrofuran (THF);Flow velocity:1.0mL/ point
Clock;Injection rate:100 μ L (tetrahydrofuran solution of sample solution concentration 4mg/mL);Standard specimen:Using following monodisperse polystyrenes
Alkene, makes standard curve.
In the present invention, the natural emulsion through pretreatment, the step of the pretreatment is:
1st, natural rubber, dehydrated alcohol and polyphosphoric acids are blended, the material shown in formula (1) is added in mixed liquor,
Ultrasound 0.5-2 hours under room temperature;
2nd, the mixed liquor in step 1 is centrifuged, with absolute ethanol washing 3-5 time, is dried;
3rd, the dried object in step 2 and deionized water are blended, heating-up temperature to 70-130 DEG C, after stirring 0.2-6 hours,
It is put in frozen water rapidly and is cooled down, is centrifuged, dries.
Used as one embodiment of the present invention, the natural emulsion and formula (1) carry out 0.2-6 hours at 70-130 DEG C
Pretreatment.
Used as one embodiment of the present invention, the natural emulsion and formula (1) carry out 0.5-4 hours at 85-110 DEG C
Pretreatment.
Used as one embodiment of the present invention, the heating-up temperature is preferably 70-75 DEG C, 100-105 DEG C, 110-115
℃.
Used as one embodiment of the present invention, the mixing time is 0.2-0.5h, 1-1.5h, 5-5.5h.
Shown in formula (1), the structural formula of material is as follows:
Wherein, the R1、R2、R3And R4In at least two be selected from polar group;The n+o<M+p, and p is maximum
Number.
Used as one embodiment of the present invention, the weight average molecular weight of formula (1) is preferably 150000-320000.
As one embodiment of the present invention, the n:o:m:P=1:1:(5-8):(10-20), more preferably n:
o:m:P=1:1:7:15.
The one kind of heretofore described polar group in carboxylic acid group, sulfonic group, aldehyde radical, hydroxyl, amino, ester group.
Used as a kind of optimal way of the present invention, the polar group is selected from aldehyde radical, amino and hydroxyl.
Used as a kind of more preferred mode of the present invention, the polar group is selected from aldehyde radical.
In the present invention, the content of the aldehyde radical is 100-350 μm of ol/g, more more preferably 150-250 μm ol/g.
The qualitative analyses of aldehyde radical:Can be with the upper aldehyde radical for being formed of qualitative analyses formula (1) using Fourier infrared spectrum analyser.
The quantitative analyses of aldehyde radical:1st, hydroxyamine hydrochloride;2nd, ultraviolet spectrophotometer method;3rd, nitrogen content transformation approach;4th, carboxyl
Content conversion method.
In the present invention, the measure mechanism of the aldehyde group content:With oxammonium hydrochloride .-methanol solution and aldehyde radical quantitative response, raw
Into Schiff's base, hydrochloric acid is discharged, it is fine finally to determine oxidation that the hydrochloric acid for discharging carries out titration again with sodium hydroxide-methanol solution
Aldehyde group content in dimension element.
Assay method:50mL mass concentrations are added in 250mL beakers for oxammonium hydrochloride .-methanol solution and 8 drops of 20g/L
Thymol blue indicator, now solution should assume yellow, otherwise application 0.03mol/L sodium hydrate methanol solutions drop to solution
In yellow, the volume of sodium hydroxide solution used is disregarded;Then sample is added in small beaker, be placed on magnetic stirrer fully
Agitation, starts simultaneously at timing, if sample contains aldehyde radical, solution can be immediately turned into gentle redness, after reaction 10min, use immediately
0.03mol/L sodium hydrate methanol solutions titrate, to solution present yellow, and do not take off in 30s be changed into pink, otherwise should
Proceed to titrate.The calculating formula of aldehyde group content is as follows:
In formula:H is aldehyde group content, is represented with a μm ol/g over dry, bodies of the X for the sodium hydroxide-methanol solution of 0.03mol/L
Product, is represented with mL.W is the oven-dry weight of formula (1), is represented with g.
Synthetic rubber
Synthetic rubber is a kind of synthesis, macromolecular compound at normal temperatures in elastomeric state (rubbery state), by monomer
Aggregated reaction and obtain.Identical with natural rubber be elastomer one kind, also known as lactoprene.Raw material is easy to get, and can give birth on a large scale
Produce, and do not limited by geographical conditions.There are olefines, alkadiene and element organic by chemical constitution, wherein mainly have butylbenzene
Rubber, nitrile rubber, neoprene, butyl rubber, dipropyl rubber, thiorubber., lactoprene, polyurethanes
Rubber, silicone rubber, fluorubber, cis-polybutadiene rubber and cis-polyisoprene rubber etc., its performance is because of monomer and manufacture
Technique is different and different.Some synthetic rubber have the spies such as bigger heatproof, wear-resisting, ageing-resistant, corrosion-resistant, oil resistant compared with natural rubber
Property, such as thiorubber. oil resistant;Silicone rubber, fluorubber are heat-resisting, resistance to chemical attack.Similar to natural rubber, processed shaping and sulfur
Change and can be made into various rubbers.Vulcanizing agent is generally based on sulfur, it is possible to use tetrachloroquinone, zinc oxide, aluminium oxide, peroxide
Change benzoyl etc., tetrachloroquinone has high poison, it should be noted that protection.
Elastomeric sorting technique is a lot.General purpose rubber and specific rubber can be divided into by using characteristic.Universal conjunction
Natural rubber can be partly or entirely replaced to use into rubber;Specific rubber has a property, such as high temperature resistant, oil resistant, ageing-resistant
Deng.Thermoplastic elastomer and vulcanizable rubber can be divided into by rubber forming process.Liquid rubber can be divided into, consolidated by finished product state
Body rubber, latex and powdered rubber etc..
The principal item of general purpose synthetic rubber has butadiene-styrene rubber (butadiene and styrene copolymerisation are obtained), butadiene rubber
(isoprene gathers for (polymerizing butadiene is obtained), butyl rubber (isobutene. with a small amount of isoprene copolymer close obtain), isoprene rubber
Conjunction is obtained), EP rubbers (ethylene and copolymerization of propylene are obtained), neoprene (chlorobutylene polymerization obtain), nitrile rubber (fourth two
Alkene and copolymerization of acrylonitrile are obtained).
The either natural or rubber of synthesis, though there is good elasticity, all without enough intensity, it is necessary to pass through
Processing could be used.The steps such as the course of processing includes plasticating, kneads, molding, sulfuration:1. plasticate:Rubber can be made to reduce elasticity, increased
Plus plasticity.This step is requisite to natural rubber;Some elastomeric rubbers itself have a certain degree of plasticity,
Directly can knead.2. knead:Be under mechanical action, make vulcanizing agent (sulfur etc.), vulcanization accelerator, kicker, age resistor,
The compounding ingredients such as reinforcing agent (conventional carbon black), filler (Calcium Carbonate, magnesium carbonate etc.), coloring agent and rubber are uniformly mixed into sizing material.
3. molding:The sizing material semi-finished product of variously-shaped and size are attached to one from the textile material of leaching, gluing by the different requirements of kind
Rise, make the semi-finished product of sulfuration.4. vulcanize:Products formed forms the cancellated process of build under uniform temperature and pressure,
Its result makes product lose plasticity, obtains high resiliency.The mechanism of sulfuration, because of the chemical constitution of rubber and vulcanizing agent and different, rubber
Rubber containing C=C in molecular structure, conventional sulfur make vulcanizing agent, due to forming sulphur bridge (single sulfur or many sulfur) in sulfidation
Make macromolecules cross-linking adult form network structure.For saturation ethylene propylene monomer, using peroxide (such as benzoyl peroxide)
Deng unvulcanised agent.Rubber containing some function bases in molecule, can do sulfur according to the property of function base using appropriate compound
Agent, is allowed to vulcanize.
In the present invention, the synthetic rubber is polar rubber;The polar rubber can be nitrile rubber, neoprene,
Epichlorohydrin rubber, polyurethane rubber, acrylic rubber (ethyl acrylateand chloroethyl vinyl ether copolymer), epoxidation day
Right rubber etc..
Epichlorohydrin rubber can be enumerated:The homopolymer (CO) of epichlorohydrin, epichlorohydrin-oxirane bipolymer (ECO),
Epichlorohydrin-allyl glycidyl ether bipolymer (GCO), epichlorohydrin-oxirane-allyl glycidyl ether ternary are altogether
Polymers (GECO) etc..
Polyurethane rubber can be enumerated:Intramolecular has the polyether types of polyurethane rubber of ehter bond.Polyether types of polyurethane rubber
The polyethers that can have hydroxyl by two ends is manufactured with the reaction of diisocyanate.Polyethers is not particularly limited, Ke Yilie
Lift Polyethylene Glycol, polypropylene glycol etc..Diisocyanate is not particularly limited, and can enumerate toluene di-isocyanate(TDI), diphenylmethyl
Alkane diisocyanate etc..
Used as one embodiment of the present invention, the synthetic rubber is non-polar rubber.The non-polar rubber can be with
Be EPDM, butadiene-styrene rubber, butyl rubber, one or more in butadiene rubber.
Used as one embodiment of the present invention, the elastomeric weight average molecular weight is preferably 30000-150000.
Used as a kind of optimal way of the present invention, the elastomeric weight average molecular weight is preferably 50000-100000.
Used as one embodiment of the present invention, the natural emulsion and elastomeric weight ratio are 10:(1-3);More
Plus more preferably 10:2.
Heretofore described natural emulsion and elastomeric preparation process are:
1st, by natural emulsion after pretreatment, pretreated natural emulsion is mixed according to weight ratio and synthetic rubber
Close, add sulfur or vulcanization accelerator etc., stirring to make which after being sufficiently mixed, obtain natural emulsion and synthetic rubber latex.
2nd, above-mentioned natural emulsion and synthetic rubber latex are introduced in mould, mould is sent into the steaming that temperature is for 70-110 DEG C
, sulfuration in the presence of heating power or solidify, then mould is taken out from vaporium, remove latex block, clean, dry, enter in steam chest there is
Row cuts out, and latex brassiere mold cup is obtained.
The vulcanization accelerator can be selected from sulfenyl amine system vulcanization accelerator, guanidine system vulcanization accelerator, thiazoless, sulphonyl
Ammonia, thiurams, dithiocarbamatess etc..
Preferably, in the present invention, latex product can also be dipped article, and sponge product, extruded article, molded article are knitted
Make product.Further, the sponge product includes medicated pillow, mattress, medicated cushion, back cushion, sofa, waist support, shoe pad, medicated bra, vapour
Vehicle seat is ridden, toilet seat pad, brassiere mold cup, bra or hand warmer.
A second aspect of the present invention provides the purposes of above-mentioned natural emulsion mold cup, and which is used for preparing bra.
A third aspect of the present invention provides a kind of natural emulsion bra, and which includes above-mentioned natural emulsion mold cup.
Mechanism:
Present inventor is found surprisingly that, by pretreated natural emulsion with the elastomeric compatibility,
Antianaphylaxiss and resistance to ag(e)ing increase.Meanwhile, inventor also has found, in the case where different temperatures and different time are processed, to select
Specific polar group can have the especially excellent compatibility and resistance to ag(e)ing with the synthetic rubber of specific weight average molecular weight.May
The reason for be natural emulsion and formula (1) material when pretreatment short texture at high temperature, attract each other, wind;Rapidly
After cooling is processed, then it is blended with synthetic rubber, due to the presence of polar group, improves the compatibility, while improve product
Compactness, so can protect to protein in natural emulsion, Maillard reaction occur again, such that it is able to suppress albumen
Overflow, so as to reduce its allergy characteristic.
Embodiment 1:Embodiment 1 provides a kind of latex brassiere mold cup, and which is prepared into by natural emulsion and synthetic rubber
Arrive.
Embodiment 2:Latex brassiere mold cup as tdescribed in embodiment 1, the weight average molecular weight of the natural emulsion is
45000-70000.
Embodiment 3:Latex brassiere mold cup as tdescribed in embodiment 1, the elastomeric weight average molecular weight is
30000-150000.
Embodiment 4:Material shown in latex brassiere mold cup as tdescribed in embodiment 1, the natural emulsion and formula (1)
Pretreatment is carried out at 70-130 DEG C;The structural formula of formula (1) is as follows:
Wherein, the R1、R2、R3And R4In at least two be selected from polar group;The n+o<M+p, and p is maximum
Number.
The step of pretreatment is to stir natural emulsion and formula (1) material in a solvent.
Embodiment 5:Latex brassiere mold cup as described in embodiment 4, the polar group are selected from carboxylic acid group, sulfonic acid
One kind in base, aldehyde radical, hydroxyl, amino, ester group.
Embodiment 6:Latex brassiere mold cup as described in embodiment 4, the natural emulsion and formula (1) are at 70-130 DEG C
Under carry out the pretreatment of 0.2-6 hours.
Embodiment 7:Latex brassiere mold cup as described in embodiment 4, the natural emulsion and formula (1) are at 85-110 DEG C
Under carry out the pretreatment of 0.5-4 hours.
Embodiment 8:The weight ratio of the latex brassiere mold cup as described in embodiment 4, the natural emulsion and formula (1) is
10:(0.01-2).
Embodiment 9:Latex brassiere mold cup as described in embodiment 4, the natural emulsion and elastomeric weight
Than for 10:(1-3).
Embodiment 10:Latex brassiere mold cup as tdescribed in embodiment 1, the synthetic rubber are non-polar rubber.
Embodiment 11:Embodiment 11 provides the purposes of above-mentioned latex mold cup, and which is used for preparing bra.
Embodiment 12:Embodiment 12 provides a kind of latex bra, and which includes above-mentioned latex mold cup.
The present invention is specifically described below by embodiment.Be necessary it is pointed out here that, following examples are only used
In the invention will be further described, it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field
Some nonessential modifications and adaptations that content according to the invention described above is made, still fall within protection scope of the present invention.
In addition, if there is no other explanations, raw materials used be all commercially available, and number used by following material is weight
Part.
Embodiment 1:Embodiment 1 provides a kind of latex brassiere mold cup, and which is prepared by natural emulsion and synthetic rubber;Institute
State natural emulsion weight average molecular weight be 60000, the elastomeric weight average molecular weight be 100000, the natural emulsion and
Elastomeric weight ratio is 10:1.8.
The natural emulsion through pretreatment, the step of the pretreatment is:
1st, 1 parts by weight of natural rubber, 10 weight portion dehydrated alcohol and 0.1 weight portion polyphosphoric acids are blended, in mixed liquor
Material shown in middle addition formula (1), ultrasonic 1.2 hours at room temperature;
2nd, the mixed liquor in step 1 is centrifuged, with absolute ethanol washing 5 times, is dried;
3rd, the dried object in step 2 and deionized water are blended, heating-up temperature to 103 DEG C, after stirring 0.3 hour, rapidly
It is put in frozen water and cools down, is centrifuged, dries.
The structural formula of formula (1) material is as follows:
The R1、R3For methyl, R2For hydroxyl, R4For aldehyde radical, and the weight average molecular weight of formula (1) is 200000, the n:o:
m:P=1:1:7:15.
Formula (1) is with one methoxy silane of trimethyl, one chlorine of monomethyl monohydroxy, one methoxy silane, one aldehyde of monomethyl
One chlorine of base, one methoxy silane, one methoxyl group of dimethyl, one chlorosilane are preparing raw material, according to above-mentioned n:o:m:P=1:1:7:15
For raw material ratio, prepare, concretely comprise the following steps:In 200 parts of DMFs, high-temperature is risen to 170 DEG C, added
The benzoyl peroxide of 0.3 weight portion, then successively instills above-mentioned preparing raw material successively, after isothermal reaction 5h, filter, wash,
Dry, obtain final product.
The synthetic rubber is butadiene-styrene rubber.
The preparation process of the brassiere mold cup is:
1st, by natural emulsion after pretreatment, pretreated natural emulsion is mixed according to weight ratio and synthetic rubber
Close, add vulcanization accelerator, stirring to make which after being sufficiently mixed, obtain natural emulsion and synthetic rubber latex.
2nd, above-mentioned natural emulsion and synthetic rubber latex are introduced in mould, mould is sent into the steam that temperature is 70 DEG C
, sulfuration in the presence of heating power or solidify, then mould is taken out from vaporium, remove latex block, clean, dry, carry out in room there is
Cut out, latex brassiere mold cup is obtained.
Embodiment 2:Difference with embodiment 1 is that the weight average molecular weight of the natural emulsion is 100000.
Embodiment 3:Difference with embodiment 1 is that the weight average molecular weight of the natural emulsion is 30000.
Embodiment 4:Difference with embodiment 1 is that the elastomeric weight average molecular weight is 20000.
Embodiment 5:Difference with embodiment 1 is that the elastomeric weight average molecular weight is 160000.
Embodiment 6:Difference with embodiment 1 is that the weight ratio of the natural emulsion and formula (1) is 10:0.001.
Embodiment 7:Difference with embodiment 1 is that the weight ratio of the natural emulsion and formula (1) is 10:3.
Embodiment 8:Difference with embodiment 1 is that the natural emulsion and elastomeric weight ratio are 10:0.5.
Embodiment 9:Difference with embodiment 1 is that the natural emulsion and elastomeric weight ratio are 10:4.
Test:
1st, product plasticity retention percentage foundation:SN/T 0541.2-1996 import and export the detection of the standard rubbers method of inspection
2nd, scratch test:Skin allergy test is according to " manufacture of medical instruments recognizes to apply for necessary biology
The basic consideration method of safety testing " and " the reference examination involved by the basic consideration method of biological safety testing
Sample ".
Preparation-obtained modified natural emulsion is suspended in ethanol solution, above-mentioned ethanol solution is offerd medicine in Cavia porcelluss
Scapula top, disposes 7 days, observation.
Criterion:
3rd, human allergy's reaction:185 people of 35 people of male and women, adds up to 220 people.
Testing sample was carried out by 2 stages.Experimental stage when importing, about 1 inch of tetragonal product is put
Put on the surface of the closure medical application tapes of 3M company systems.Sheet material is placed on the back between shoulder and waist.Test is each
Carry out in Monday, Wednesday and Friday.After experiment 24 hours, sheet material is removed.Tuesday and Thursday rest 24 are little
When, rest 48 hours after removing Saturday.Before upper once sheet material is tested, by the trained people that will be tested
Record returns to equipment.
During off-test when importing, the used article of test is removed, is not then tested within 2 weeks.Again
Challenge test starts after the rest.Rechallenging test is carried out at new test position.After testing when removing, record 24 is little
When and the position of 72 hours.The stage terminated in the final reading for rechallenging test occurs and postpones generation on skin.
According to following record benchmark, skin condition is recorded.
Test result:
Keep the formulation condition of embodiment 1 constant, change the pretreatment temperature of natural emulsion, see which from different synthetic rubber
The compatibility, judge from the plasticity retention percentage of mold cup.
Keep the formulation condition of embodiment 1 constant, change the pretreatment time of natural emulsion, see which from different synthetic rubber
The compatibility, judge from the plasticity retention percentage of mold cup.
As can be seen from the table, the compositionss in the present invention, its have the very strong compatibility, modeling to nonpolar synthetic rubber
Property conservation rate high, excellent in mechanical performance, almost without anaphylactic reaction.
Aforesaid example is merely illustrative, for explaining some features of the feature of the disclosure.Appended claim
The scope as wide as possible for requiring to be contemplated that is intended to, and embodiments as presented herein is only according to all possible embodiment
Combination selection embodiment explanation.Therefore, the purpose of applicant is that appended claim is not of the invention by explanation
Feature example selectional restriction.And the progress in science and technology will be formed due to language performance inaccurate reason and not
The possible equivalent or son being presently considered is replaced, and these changes also should be interpreted by appended in the conceived case
Claim is covered.
Claims (10)
1. a kind of latex brassiere mold cup, it is characterised in which is prepared by natural emulsion and synthetic rubber.
2. latex brassiere mold cup according to claim 1, it is characterised in that the weight average molecular weight of the natural emulsion is
45000-70000.
3. latex brassiere mold cup according to claim 1, it is characterised in that the elastomeric weight average molecular weight is
30000-150000.
4. latex brassiere mold cup according to claim 1, it is characterised in that the natural emulsion and formula (1) material are in 70-
Pretreatment is carried out at 130 DEG C;The structural formula of formula (1) is as follows:
Wherein, the R1、R2、R3And R4In at least two be selected from polar group;The n+o<M+p, and p is maximum number.
The step of pretreatment is to stir natural emulsion and formula (1) material in a solvent.
5. latex brassiere mold cup according to claim 4, it is characterised in that the polar group is selected from carboxylic acid group, sulfonic acid
One kind in base, aldehyde radical, hydroxyl, amino, ester group.
6. latex brassiere mold cup according to claim 4, it is characterised in that the natural emulsion and formula (1) are in 70-130
The pretreatment of 0.2-6 hours is carried out at DEG C.
7. latex brassiere mold cup according to claim 4, it is characterised in that the natural emulsion and formula (1) are in 85-110
The pretreatment of 0.5-4 hours is carried out at DEG C.
8. latex brassiere mold cup according to claim 4, it is characterised in that the weight ratio of the natural emulsion and formula (1)
For 10:(0.01-2).
9. latex brassiere mold cup according to claim 1, it is characterised in that the natural emulsion and elastomeric weight
Than for 10:(1-3).
10. latex brassiere mold cup according to claim 1, it is characterised in that the synthetic rubber is non-polar rubber.
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Cited By (1)
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CN108623857A (en) * | 2018-04-25 | 2018-10-09 | 艾钟 | A kind of pure natural latex composition and latex mold cup and preparation method thereof |
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CN101613422A (en) * | 2009-07-21 | 2009-12-30 | 中山大学 | A kind of natural rubber latex protein fixation method |
US20100120329A1 (en) * | 2008-11-07 | 2010-05-13 | Macdonald Susan Delaney | Brassiere |
CN202068950U (en) * | 2011-06-08 | 2011-12-14 | 张祖福 | Breast plumping cup |
CN204409613U (en) * | 2015-01-20 | 2015-06-24 | 姚俊鹏 | A kind of rubber bra cup of internal airbag |
CN205390350U (en) * | 2016-02-24 | 2016-07-27 | 王欣 | Latex brassiere |
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CN1569961A (en) * | 2004-04-24 | 2005-01-26 | 陈耀祥 | Bra cushion material and its making method |
US20100120329A1 (en) * | 2008-11-07 | 2010-05-13 | Macdonald Susan Delaney | Brassiere |
CN101613422A (en) * | 2009-07-21 | 2009-12-30 | 中山大学 | A kind of natural rubber latex protein fixation method |
CN202068950U (en) * | 2011-06-08 | 2011-12-14 | 张祖福 | Breast plumping cup |
CN204409613U (en) * | 2015-01-20 | 2015-06-24 | 姚俊鹏 | A kind of rubber bra cup of internal airbag |
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CN108623857A (en) * | 2018-04-25 | 2018-10-09 | 艾钟 | A kind of pure natural latex composition and latex mold cup and preparation method thereof |
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