CN104812862B - Transparent safety diaphragm - Google Patents
Transparent safety diaphragm Download PDFInfo
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- CN104812862B CN104812862B CN201380061869.0A CN201380061869A CN104812862B CN 104812862 B CN104812862 B CN 104812862B CN 201380061869 A CN201380061869 A CN 201380061869A CN 104812862 B CN104812862 B CN 104812862B
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- Prior art keywords
- enamelled coating
- safety diaphragm
- layer
- adhesion
- separate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2519/00—Labels, badges
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/338—Applications of adhesives in processes or use of adhesives in the form of films or foils as tamper-evident tape or label
Abstract
The present invention relates to a kind of multi-layer transparent safety diaphragm, it is bonded in substrate (5), wherein said safety diaphragm comprises following layer :-outer carrier layer (1),-separation enamelled coating (2), what-part applied peels off enamelled coating (3),-apply at least partly for being bonded in the adhesive layer (4) in substrate (5), wherein carrier layer (1) on the one hand with separate adhesion between enamelled coating (2) and on the other hand in may situation and peel off the adhesion between enamelled coating (3), adhesive layer (4) on the one hand with separate the adhesion between enamelled coating (2) and the adhesion on the other hand and between substrate (5) and be greater than respectively the cohesive force that separates enamelled coating (2), the cohesive force that wherein separates enamelled coating (2) is greater than peels off enamelled coating (3) and the adhesion separating between enamelled coating (2), and peel off enamelled coating (3) and may under situation, be greater than the adhesion of peeling off between enamelled coating (3) and adhesive layer (4) with the adhesion separating between enamelled coating (2), thereby safety diaphragm ruptures by cohesive force in the region of not peeling off enamelled coating (3) or separate by the mixed fracture that is in most of the cases configured to cohesive force fracture, wherein the trend of cohesive force fracture and mixed fracture is essentially horizontally by separating enamelled coating (2), safety diaphragm is having in the region of peeling off enamelled coating (3) along peeling off enamelled coating (3) and separating the adhesion fracture between enamelled coating (2) or may rupture and separate along the adhesion of peeling off between enamelled coating (3) and adhesive layer (4) under situation.
Description
Technical field
The present invention relates to the application of fragment and the fragment of multi-layer transparent safety diaphragm, safety diaphragm.
Background technology
Should---be usually at least temporarily---prevents from unpacking without authorizing, especially goods bagDress, container and door, valve etc. For this reason, these type of article are for example equipped with seal, and it is provided with by a sideThe fragment composition of the bonding film of adhesive. Seal can cover on the opening of article with its adhesive surface,Or wrap the packaging that will encapsulate, or move to container and self be bonded in above it. If described in openingSeal, it can optically change conventionally to some extent; For example tear afterwards or plastic deformation. BecauseThis variation is irreversible, thereby any operation that it is carried out that can be unequivocally established is attempted.
This type of is for proving without authorizing the security system of opening open in the prior art. EP1403190A2 described a kind of pieces, one side disposes the original creation of the adhesive tape of adhesive at least in partProperty seal, it surrounds the article that will encapsulate and is bonded on these article with existing adhesive, Qi ZhongsuoState adhesive tape and there is carrier easy to crack, thereby if open originality seal in the mode of holding fragment two ends,Described carrier will irreversibly ftracture.
Security system is printed on following requirement to such safety: it is transparent requiring it, therebyBottom for example making, namely the surface of packaging, container, door or valve is cognizable under safe seal.Transparent safe seal also should be more unobvious, because for example it does not affect or destroys package design, instituteAlso correspondingly to enjoy recommendation at aesthetic angle.
EP0770251B1 has described a kind of transparent multilayer film, and it is particularly useful for protecting the number on documentAccording to. Described multilayer film comprises top layer, irreversibly destroyed in the time of separate multiple layer film can breakable layer, portionPoint ground is applied in adhesion Auto-regulator between each layer and gluing for bond substrates with pattern formAgent layer. Adhesion between different layers and cohesive force that can breakable layer arrange as follows: can breakable layer forThe pattern of adhesion Auto-regulator supplements destroyed in scope or irreversible deformation occurs. This patent withIn can the relation of breakable layer, use the concept of " destruction ", thus this layer for example by brittle fracture orTear in the horizontal and irreversibly destroyed by the trend of layer, and continuous layer under any circumstanceAll will not exist. Can for example can contain little glass microsphere as filler by breakable layer, to improve its fragility.
Summary of the invention
From above-mentioned background technology, the object of the invention is to, a kind of transparent peace simple in structure is providedThe fragment of full film and this transparent safety diaphragm, transparent safety diaphragm in separating experiment, occur irreversible andObvious visible destruction. In addition, the present invention also aims to, seal as follows by the fragment of safety diaphragmPackaging, container, door, valve or similar article, i.e. any operation to fragment is attempted all can being confirmed.
According to the present invention by the multi-layer transparent safety diaphragm by thering is claim 1 feature, this safety diaphragmFragment and this fragment realize aforementioned object for the purposes of sealed package, container, door, valve etc.
Be bonded in substrate according to the multi-layer transparent safety diaphragm of claim 1, described substrate can for packaging,The surface of container, door or valve, and comprise following layer: outer carrier layer, separates enamelled coating(Trennlackschicht) what, part applied peels off enamelled coating (Releaselackschicht) and applies at least partlyFor being bonded in suprabasil adhesive layer. Carrier layer is positioned at outside after safety diaphragm is bonded in substrate,That is to say, in the side away from substrate. This separation enamelled coating conventionally all sidedlyApply.What advantageously, described part applied peel off enamelled coating applies with the form of pattern or writing (Schriftzug).
Adhesion between each layer is set as follows with the cohesive force that separates enamelled coating: carrier layer on the one hand with separateAdhesion between enamelled coating and on the other hand and peel off adhesion between enamelled coating, adhesive layer on the one hand withSeparating the adhesion between enamelled coating and the adhesion on the other hand and between substrate is greater than respectively and separates paintThe cohesive force of layer, the cohesive force that separates enamelled coating is greater than peels off enamelled coating and the adhesion separating between enamelled coating, andAnd peel off enamelled coating and separate adhesion between enamelled coating in may situation (gegebenenfalls) and be greater than and peel offAdhesion between enamelled coating and adhesive layer. Safety diaphragm separates in the region of enamelled coating not applying in this wayEssentially horizontally separate by the cohesive force fracture that separates enamelled coating by trend. Peel off paint being coated withIn the region of layer, safety diaphragm or along peeling off enamelled coating and separating the fracture of adhesion between enamelled coating, orPossible in the situation that, separate along peeling off the adhesion fracture between enamelled coating and adhesive layer.
Safety diaphragm of the present invention is verified to be had the following advantages: although safety diaphragm do not comprise with pigment or through dyingThe printed layers (Druckschicht) of look, if but safety diaphragm self separates, can obtain contrast fullyOperational verification. Due to not with pigment or dyed layer, the transmission coefficient (of safety diaphragm of the present inventionAs be greater than 95%) (conventionally little than the transmission coefficient with the safety diaphragm with pigment or dyed layerIn 75%) obviously improve.
Contrasting sufficient operational verification is following formation: ruptured and separated by adhesion at safety diaphragmRegion in, peel off enamelled coating with separate enamelled coating or in may situation the smooth surface of adhesive layer manifestCome. Rupture by cohesive force at safety diaphragm and pass through to separate in the region of enamelled coating separation, separate the thick of enamelled coatingRough surface will reveal, and incident light scattering is also therefore produced very muddy surface by this surface. PhaseInstead, smooth surface scattered beam hardly. If want again to seal safety diaphragm, with separate paintThe rough surface of layer just there will be air entrainment while meeting, thereby is retained obvious muddiness, is separatingLight scattering has just been caused in interface between enamelled coating rough surface and air entrainment. When with peel off enamelled coating and pointJust there will not be air entrainment when the smooth surface of adhesive layer from enamelled coating or in may situation. AdhesionTransparence is also continued to keep in the region of fracture therefore, and with the fracture of bright and clean and not less opaque cohesive forceMuddy region forms obvious contrast.
In the preferred embodiment of safety diaphragm, make the side roughening of carrier layer away from safety diaphragm surface.Strengthen in this way the dispersion effect on rupturing along the cohesive force that separates enamelled coating: in this case,Although cohesive force fracture is essentially horizontally by separating enamelled coating, however trend in carrier layer one side inThe surface of poly-power fracture but shows the position that the tiny tip of carrier layer highlights, and therefore surface willBecoming region more coarse and this type of cohesive force fracture also will be more muddy. Say exactly, relate at thisTo be mixed fracture, although because these two surperficial major parts are to be ruptured and exposed by cohesive force,But what on those positions that highlight at the tiny tip of carrier layer, relate to is adhesion fracture. Away fromRoughening one side of the carrier layer on safety diaphragm surface also tool has the following advantages: separate enamelled coating and stick to betterIn carrier layer.
Mechanically or chemical mode processing can make rough surface. Described chemical treatment is for example logicalCross the etching of acid solution or alkali lye.
Advantageously use uncrosslinked and thereby there is the separation enamelled coating of the separation paint of lower cohesive energy.
Often it is desirable for that showing contrast except the form with muddy region and transparent region operates fullyOutside proof, also introduce extraly in addition color characteristic. For example in safety diaphragm, part applies opaque for this reasonLayer is applicable to. Opaque layer can be the writing being arranged on as follows between each layer: if safety diaphragm occurs to divideFrom, the Part I of opaque layer is retained in the carrier layer of safety diaphragm, and the Part II of opaque layer is protectedStay on the adhesive layer of safety diaphragm.
Separate enamelled coating and advantageously or be comprehensively applied in carrier layer, thereby peel off enamelled coating and adhesive layer is passableContact with each other; Or separate enamelled coating and be applied on adhesive layer comprehensively, thereby carrier layer and to peel off enamelled coating passableContact with each other. Manufacturing process has all been simplified in comprehensively applying in both of these case.
Be applied in carrier layer if separate enamelled coating comprehensively, can partly apply simply extra opaque layer,And for example do following location: in the time opening safety diaphragm, destroy the pattern being formed by opaque layer, therebyA part for pattern is positioned in the part that safety diaphragm is retained in substrate, and another part of pattern is positioned at safetyIn the part that film separates from substrate.
Be applied on adhesive layer if separate enamelled coating, safety diaphragm rule of thumb can very can in the time being opened comprehensivelyThat lean on and in a predefined manner exactly separate. In addition, after separating, safety diaphragm can not leave open gluingClose face. Therefore those unconspicuous trials of again sealing safety diaphragm after separation will become especially difficulty.
In addition, safety diaphragm can have the UV-protective ild layer applying at least partly. UV-protective ild layer is logicalOften between other layers of adhesive layer and safety diaphragm. While manufacturing safety diaphragm, adhesive is being put into safetyBefore on film, apply UV-protective ild layer. Can apply adhesive with hot melt or wet type rubbing method thus,And can be due to the heat effect when the application of heat melt adhesive or due to the water with water-based dispersion adhesivesDissolve and make water-based separate the good stalling characteristic of paint forfeiture. If not default extra on safety diaphragmUV-protective ild layer, advise application of adhesive.
Safety diaphragm of the present invention be can further process, for example, band, bar or label are cut into. FragmentTake which kind of shape to depend on its purposes. For example, for hermatic door or valve, band is favourable. ForThe label that the common recommendation of package encapsulation can write, if or consider the fragment of safety diaphragm to be used forReliability packs, and recommendation is around packaging self bonding bar thereon.
Arrange as follows for the fragment of this type of safety diaphragm in preferred embodiments: portion in such a wayDivide and apply adhesive layer, namely certain area of safety diaphragm fragment keeps not application of adhesive. Advantageously asUnder (bemessen) this area is provided: finger can be picked up the fragment district of the handle form being limited by this areaTerritory separates described safety diaphragm. Do not realized in this way the function of handle containing the area of adhesive, therebyEasily pick up fragment. Alternatively, it is also conceivable that and apply adhesive layer comprehensively, but handle should be providedRegion in cover with non-bonding mode.
Brief description of the drawings
Carry out exemplary illustration safety diaphragm of the present invention in conjunction with Fig. 1-8 subsequently. Wherein,
Fig. 1: the schematic section of sealing safety diaphragm,
Fig. 2: there is the schematic section of the sealing safety diaphragm of opaque layer,
Fig. 3: there is the schematic section of the sealing safety diaphragm of UV-protective ild layer,
Fig. 4: there is the schematic section of the sealing safety diaphragm of opaque layer and UV-protective ild layer,
Fig. 5: have the section of the schematic section of the sealing safety diaphragm of thick good fortune carrier layer, it has been shownCarrier side and the interface zone that separates enamelled coating,
Fig. 6: the section of safety diaphragm after separating by mixed fracture in Fig. 5, described mixed fracture substantiallyFlatly pass through to separate enamelled coating as cohesive force fracture,
Fig. 7: shown in page left side according on the safety diaphragm of Fig. 1 from top to bottom respectively with sealing,Almost exceed semi-open and three kinds of diagrammatic top view under closed state again, and on page right sideShow safety diaphragm corresponding sectional view from top to bottom,
Fig. 8: be similar to 7, shown in page left side according to the safety diaphragm of Fig. 2 from top to bottom respectively withSealing, almost exceed semi-open and three kinds of diagrammatic top view under closed state again, andSafety diaphragm corresponding sectional view has from top to bottom been shown on page right side.
Specific embodiments
Fig. 1 shown there is carrier layer 1, part applies peeling off enamelled coating 3, apply on it comprehensively on itSeparation enamelled coating 2 and apply the schematic section of the sealing safety diaphragm of the adhesive layer 4 on it comprehensively. BondingLayer 4 combination having completed between substrate 5, substrate 5 can be for example packaging, container, door or valveSurface. The safety diaphragm of Fig. 1, under closed state, that is to say in not damaging and unsegregated stateUnder.
Fig. 2 has shown the schematic section of the sealing safety diaphragm with opaque layer. Described safety diaphragm and figureIn 1, the difference of safety diaphragm is, separates enamelled coating 2 and the comprehensive adjacency of carrier layer 1, instead of in picture Fig. 1Like that and the comprehensive adjacency of adhesive layer 4. In addition, part applies opaque layer 7, itself or be positioned at and separate paintLayer 2 and peel off between enamelled coating 3, or separating between enamelled coating 2 and adhesive layer 4.
Fig. 3 has shown the schematic section of the sealing safety diaphragm with UV-protective ild layer. Described safety diaphragmBe with the difference of safety diaphragm in Fig. 1, between separation enamelled coating 2 and adhesive layer 4, ultraviolet ray be set comprehensivelyOvercoat 6. Can add sticky with hot melt or wet type rubbing method without any problems by UV-protective ild layerClose layer 4 desired adhesive.
Fig. 4 has shown the schematic section of the sealing safety diaphragm with opaque layer and UV-protective ild layer.In described safety diaphragm and Fig. 2, the difference of safety diaphragm is, is provided with extraly UV-protective ild layer 6, itAdhesive layer 4 away from a side of substrate 5 comprehensively in abutting connection with adhesive layer 4.
Fig. 5 has shown the signal section of the sealing safety diaphragm with roughening carrier layer 1, and it has shown yearBody layer 1 and the interface zone separating between enamelled coating 2. Carrier layer 1 is surface away from safety diaphragm one side at itOn be roughened, and with a side of this roughening with separate enamelled coating 2 adjacency.
Fig. 6 has shown in Fig. 5 by mixed fracture and has separated the cross section after safety diaphragm, this mixed fracture baseIn basis, flatly pass through to separate enamelled coating 2 as cohesive force fracture. Trend is in roughening carrier layer 1 one sidesMixed fracture surface display some carrier layer 1 from separate enamelled coating 2 surfaces highlight most advanced and sophisticatedPosition. The adhesion that can find out accurately carrier layer 1 and separate between enamelled coating 2 on these positions breaksSplit, because while measuring on the whole surface of mixed fracture, these positions form less area together,Or may even not occurring completely under situation, so this surface and surface are corresponding thereto thisIn correlation, be called the surface of adhesion fracture.
Fig. 7 shown in page left side according on the safety diaphragm of Fig. 1 from top to bottom respectively with sealing,Almost exceed semi-open and three kinds of diagrammatic top view under closed state again, and on page right sideShow safety diaphragm corresponding sectional view from top to bottom, wherein, although the top view exhibition at appended middle partShown that the safety diaphragm that is almost greater than half opens, but the safety of opening completely is but shown in the cross section at middle partFilm. The top view at middle part is retained in the part in substrate 5 and in safety diaphragm and substrate 5 phases at safety diaphragmIn the part separating, all show by having by the rupture muddy district of the rough surface appearing of cohesive forceBetween the checkerboard pattern that forms of 2a, and have by adhesion rupture the smooth surface that appears thoroughlyThe checkerboard pattern that between area pellucida, 2b forms. The surface that safety diaphragm is retained in the part in substrate 5 is continuousSeparate the surface of enamelled coating 2, its interval 2a with checkerboard pattern and 2b are respectively the rough and smooth. PeaceThe surface of the part that full film separates from substrate 5 is to have between the clear area of peeling off enamelled coating 3 of smooth surfaceThe checkerboard pattern forming and there is the chessboard that the muddiness interval of the separation enamelled coating 2 of rough surface formsPattern. The top view of below shown have the checkerboard pattern that formed by almost transparent interval 13 andBy the safety diaphragm of sealing again of muddy interval 12 checkerboard patterns that form, this is transparent interval almost13 in the surface of adhesion fracture, namely separates the surface of enamelled coating 2 and the surface of peeling off enamelled coating 3Again be in contact with one another, and this muddiness interval 12 is in the surface of cohesive force fracture, namely at twoThe surface that separates enamelled coating 2 is in contact with one another. Smooth transparent interval in Fig. 7 and Fig. 8 respectively with spotForm represents, the interval of coarse muddiness represents with white respectively.
Fig. 8 is similar to 7, has shown according to the safety diaphragm of Fig. 2 from top to bottom respectively with envelope in page left sideClose, almost exceed semi-open and three kinds of diagrammatic top view under closed state again, and at pageRight side of face has been shown safety diaphragm corresponding sectional view from top to bottom. Separating enamelled coating 2 away from carrier layer 1A upper lateral part divide and apply opaque layer 7, and be with 1,2,3 and 4 these four digital forms.The position of opaque layer 7 in the layer order of safety diaphragm can be identified respectively in three cross sections on page right side.The safety diaphragm of opening has been shown in the cross section at middle part, and its part ruptures by adhesion and part is gathered by interiorPower ruptures and separates. According to the position of opaque layer 7, opaque layer 7a or be positioned at safety diaphragm retainIn part in substrate 5, separating between enamelled coating 2 and adhesive layer 4, or opaque layer 7bBe arranged in the part that safety diaphragm separates with substrate 5, separating enamelled coating 2 and peeling off between enamelled coating 3.
Carrier layer
Carrier layer can comprise in paper, thermoplastic film or above-mentioned two compositions the lamination material of at least oneMaterial. As long as comprise thermoplastic in carrier layer, so just can consider coextrusion thing. Thermoplasticity materialMaterial can comprise polyethylene, particularly HDPE (high density polyethylene (HDPE)), and polyester, particularly PET are (poly-rightPhthalic acid glycol ester), PP (polypropylene) and PVC (polyvinyl chloride), and preferably single shaft or twin shaft prolongStretch. The PP of uniaxial extension is characterised in that resistance to cracking intensity that it is very high and lower in the longitudinal directionDeformation, and be for example applied to so-called " strapping " as carrier material. Carrier layer is transparent,Preferably the transmission coefficient in the visible spectral region of human eye is greater than 95%. The inverse of transmission coefficient and carrierThere is logarithmic relationship in the optical density of layer, and if the optical density of known carrier layer, can pass through lambert BillLaw is determined this value.
Carrier layer, is usually the laminated material based on PET, and thickness is generally 20 to 100 μ m, preferablyBe 30 to 50 μ m. The surface of carrier layer is roughening as follows, for example, with chemical mode processing,By strong acid or alkali corrosion. For example can consider oxidizing acid as acid, as chromium sulfate or permanganic acidPotassium mixes with sulfuric acid. Particularly PET film often corrodes with trichloroacetic acid or with liquor kalii caustici.
The Italy CovemeSPA of company and PolifibraSPA correspondingly process film with trichloroacetic acidSurface. Coveme company merchandising is by nameThis type of of HPH100 is through the film of double treatment.Under very high concentration, use trichloroacetic acid, and long duration of action is on film surface. In continuous corrosion mistakeCheng Zhong, therefore the orbital velocity on film surface to be corroded is slower, greatly about 30 to 50 meters per minute,And baking temperature is only a little more than 100 DEG C. In the corrosion process of PET film, ester group is at surface hydrolysis,And generate polarity hydroxyl, carboxyl and carboxylate group. Therefore film surface separates paint and peels off for great majorityPaint presents better bonding basis, and separating paint and peeling off paint is equally also polarity. In addition corroded,Journey has also been destroyed degree of crystallinity in the nearly surf zone of film. Consequently obvious surface roughening.
Surface roughness refer to the interface that truly measures and desirable smooth average interface height tolerance. SurveyThe mean value of value for example mean roughness, height tolerance or with a square roughness, with heightThe average deviation of deviation is evaluated. The average surface roughness of carrier layer is roughly 2 μ m, and be 1.5 to2.5 μ m, are preferably 1.8 to 2.2 μ m.
Film surface roughening and that therefore expand is generally used for strengthening and contact adhesive (Haftklebstoff)Or combination between laminating adhesive (Kaschierkleber). Another of roughening film surface and the present inventionThe relevant part of great effect is, improved the material differing greatly with air or color density and film densityInterface on light scattering. Between this interface zone and following interface scope, form in this way strongStrong contrast: roughened surface with have approximate film density density material in abutting connection with and light scattering whereinVery little. According in sealing safety diaphragm of the present invention, roughening film surface only with following material adjacency: shouldMaterial has the density close with film density, thereby does not occur contrast. In the time separating safety diaphragm of the present inventionThere will be two kinds of interface zones, thus safety diaphragm of the present invention open fragment and not open fragment obviously different.
Peel off enamelled coating
Peel off paint and especially comprise transparent, water base, solvent-laden and UV-cured (that is to sayRely on ultra-violet radiation to harden) varnish (Klarlacke), can be by different printing processes(Druckverfahren) this varnish is applied in carrier layer, for example flexographic printing, hectographic printing, silk screenPrinting, trans-printing and inkjet printing. In order to improve separating effect, can peel off in paint, add siliceousMaterial, it can reduce its surface energy. The applied amounts of peeling off paint is advantageously 1 to 7g/m2。
Separate enamelled coating
What be applicable to as separation paint is the material that cohesive force is especially low, and especially printable or easy painting is scraped, water base or solvent-laden material. Low cohesive energy can be by high-load filler as barium sulfate,Kaolin, talcum or chalk are realized, and described filler is advantageously less than the colloid filler of 1 μ m with particle diameterDispersion is added, high as far as possible to guarantee the separating transparency of painting. This type of example that separates paint has resinDispersion, esters of acrylic acid dispersion or general polymerization thing dispersion and solvent-laden polymer solution,Its polymer adhesive composition is preferably micromolecular and crosslinked, and have thus low-down inPoly-power. Use the water-borne dispersions being formed by wax can reach particularly preferred effect. The applied amounts that separates paint is excellentSelection of land is 2 to 12g/m2。
UV-protective ild layer
Use moisture or solvent-laden, UV cured paint as UV-protective ild layer. This paint for example canTo apply by printing process or by doctor blade method (Rakelverfahren).
Adhesive layer
Can consider substantially all known for example, in substrate (viscosity bottom to be packaged as adhesive(Haftgrund)), there is the adhesive compared with high adhesion, as synthetic rubber, natural rubber and acrylateClass adhesive. Can relate to binder solution, dispersion or hot melt at this. Adhesive is being subject to ballastApplied amounts on body layer is preferably 15 to 60g/m2, be particularly preferably 20 to 30g/m2。
Especially for a following embodiment of safety diaphragm of the present invention, wherein separate enamelled coating completeBe applied in carrier layer, what part applied peel off, and enamelled coating is located at separates between enamelled coating and adhesive layer also faceAnd be not provided with UV-protective ild layer: adhesive layer is done to following adjustment peeling off on enamelled coating, peel off enamelled coating withAdhesion between adhesive layer is less than to be peeled off enamelled coating and separates the adhesion between enamelled coating. For this reason, close especiallySuitable is the polarity adhesive on steel with moderate adhesion between 1.5 to 4N/cm, and it is coated to and is subject toOn ballast carrier layer.
Opaque layer
Be applicable to as opaque layer be all common are look or with pigment, water base or solvent-laden,Paint or printing colorant for UV-cured printing. Preferably use UV-cured printing colorant(Druckfarbe), for example, by those of Flint, Zeller+Gmelin or Siegwerk manufacturing.
Reference numeral table
Carrier layer 1
Separate enamelled coating 2
There is the interval 2a of separation enamelled coating of rough surface
There is the interval 2b of separation enamelled coating of smooth surface
Peel off enamelled coating 3
What have smooth surface peels off the interval 3b of enamelled coating
Adhesive layer 4
Substrate 5
UV-protective ild layer 6
Opaque layer 7
Separate the opaque layer 7a between enamelled coating 2 and adhesive layer 4
Separate enamelled coating 2 and peel off the opaque layer 7b between enamelled coating 3
There is the superimposed surperficial muddiness interval 12 of cohesive force fracture
Have between the superimposed surperficial clear area of adhesion fracture 13
Claims (13)
1. multi-layer transparent safety diaphragm, it is upper that it is bonded in substrate (5), and wherein, described safety diaphragm comprises followingEach layer:
-outer carrier layer (1),
-part applies peels off enamelled coating (3) on it,
-apply the separation enamelled coating (2) on it comprehensively,
-apply at least partly for being bonded in the adhesive layer (4) in substrate (5),
Wherein, carrier layer (1) with separate adhesion, the carrier layer (1) between enamelled coating (2) and peel off enamelled coating (3)Between adhesion, adhesive layer (4) and separate adhesion and adhesive layer (4) and the substrate between enamelled coating (2)(5) adhesion between is greater than respectively the cohesive force that separates enamelled coating (2),
Wherein, the cohesive force that separates enamelled coating (2) is greater than and peels off enamelled coating (3) and the adhesion separating between enamelled coating (2)Power,
Thereby safety diaphragm ruptures by cohesive force in the region of not peeling off enamelled coating (3) or by greatlyIn most cases be configured to the mixed fracture of cohesive force fracture and separate, wherein, cohesive force fracture and mixedThe trend that make and break splits is essentially horizontally by separating enamelled coating (2), and safety diaphragm is peeled off enamelled coating (3) havingIn region, separate with separating the adhesion fracture between enamelled coating (2) along peeling off enamelled coating (3),
Wherein carrier layer (1) away from the surface of safety diaphragm one side through roughening.
2. multi-layer transparent safety diaphragm, it is upper that it is bonded in substrate (5), and wherein, described safety diaphragm comprises followingEach layer:
-outer carrier layer (1),
-separation enamelled coating (2),
What-part applied peels off enamelled coating (3),
-apply at least partly for being bonded in the adhesive layer (4) in substrate (5),
Wherein, carrier layer (1) with separate adhesion, the adhesive layer (4) between enamelled coating (2) and separate enamelled coating (2)Between adhesion and adhesion between adhesive layer (4) and substrate (5) be greater than respectively and separate enamelled coating (2)Cohesive force,
Wherein, the cohesive force that separates enamelled coating (2) is greater than and peels off enamelled coating (3) and the adhesion separating between enamelled coating (2)Power, and peel off enamelled coating (3) and separate adhesion between enamelled coating (2) and be greater than and peel off enamelled coating (3) and adhesive layer(4) adhesion between,
Thereby safety diaphragm ruptures by cohesive force in the region of not peeling off enamelled coating (3) or by greatlyIn most cases be configured to the mixed fracture of cohesive force fracture and separate, wherein, cohesive force fracture and mixedThe trend that make and break splits is essentially horizontally by separating enamelled coating (2), and safety diaphragm is peeled off enamelled coating (3) havingIn region, separate along peeling off the adhesion fracture between enamelled coating (3) and adhesive layer (4).
3. safety diaphragm according to claim 2, is characterized in that, carrier layer (1) is away from safety diaphragmThe surface of one side is through roughening.
4. according to the safety diaphragm described in claim 1 or 3, it is characterized in that, carrier layer (1) is away from peaceThe surface of full film one side is through corrosion.
5. according to the safety diaphragm described in claim 1 or 3, it is characterized in that described carrier layer averageSurface roughness is 1.5 to 2.5 μ m.
6. safety diaphragm according to claim 5, is characterized in that, the average surface of described carrier layerRoughness is 1.8 to 2.2 μ m.
7. according to the safety diaphragm described in any one in claims 1 to 3, it is characterized in that described pointComprise that from enamelled coating (2) water-based separates paint.
8. according to the safety diaphragm described in any one in claims 1 to 3, it is characterized in that described peaceFull film comprises the opaque layer (7) that part applies.
9. safety diaphragm according to claim 8, is characterized in that, described opaque layer (7) arrangesIf for described safety diaphragm separates, the Part I of described opaque layer (7b) is bonded in described carrierLayer (1) Part II (7a) upper and described opaque layer is bonded on described adhesive layer (4).
10. according to the safety diaphragm described in any one in claims 1 to 3, it is characterized in that described peaceFull film comprises the UV-protective ild layer (6) applying at least partly.
11. according to the fragment of safety diaphragm described in any one in claim 1 to 10, it is characterized in that,Described fragment is configured to band, bar or label.
12. fragments according to claim 11, is characterized in that, described adhesive layer (4) is with as followsMode part applies: the described safety diaphragm fragment of certain area keeps not application of adhesive, and this area arrangesFor the segment area that can pick up the handle form being limited by this area with finger separates described safety diaphragm.
Fragment described in 13. claims 11 or 12 is for the purposes of sealed package, container, door or valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012221796.7A DE102012221796B3 (en) | 2012-11-28 | 2012-11-28 | Transparent security film |
| DE102012221796.7 | 2012-11-28 | ||
| PCT/EP2013/073863 WO2014082867A1 (en) | 2012-11-28 | 2013-11-14 | Transparent security film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104812862A CN104812862A (en) | 2015-07-29 |
| CN104812862B true CN104812862B (en) | 2016-06-15 |
Family
ID=49582759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380061869.0A Active CN104812862B (en) | 2012-11-28 | 2013-11-14 | Transparent safety diaphragm |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2925825A1 (en) |
| CN (1) | CN104812862B (en) |
| DE (1) | DE102012221796B3 (en) |
| WO (1) | WO2014082867A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355139A (en) * | 2015-11-17 | 2016-02-24 | 广东长虹电子有限公司 | Dustproof terminal label |
| EP3299160A1 (en) | 2016-09-21 | 2018-03-28 | Airbus Operations GmbH | Bonding arrangement and assigned production method |
| MA47034B1 (en) * | 2017-03-02 | 2021-11-30 | Scheepers Gideonn | Security bags |
| CN112424854B (en) * | 2018-07-11 | 2023-03-28 | 琳得科株式会社 | Peeling detection label |
| EP3726506B1 (en) * | 2019-04-19 | 2022-10-26 | Securikett Ulrich & Horn GmbH | Sealing film |
| EP4202889A1 (en) * | 2021-12-23 | 2023-06-28 | SCRIBOS GmbH | Sealing label, method for producing a sealing label and use |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629093A (en) * | 1994-07-08 | 1997-05-13 | Minnesota Mining And Manufacturing Company | Transparent multilayer film and its use for protection of data on documents as well as a tamper-proof label |
| CN101454416A (en) * | 2006-04-04 | 2009-06-10 | 伊士曼化工公司 | Pressure sensitive adhesive (psa) laminates |
| EP2096154A1 (en) * | 2008-02-28 | 2009-09-02 | tesa SE | Multi-layer adhesive for use as tamper-proof tape |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121003A (en) * | 1977-04-22 | 1978-10-17 | Monarch Marking Systems, Inc. | Tamper indicating labels |
| DE19963709A1 (en) * | 1999-12-29 | 2002-12-05 | Tesa Ag | Security adhesive tape to prove unauthorized opening of a packaging |
| AU779061B2 (en) * | 2000-06-27 | 2005-01-06 | Dainippon Printing Co. Ltd. | Multilayer volume hologram, and label for multilayer volume hologram fabrication |
| DE10245430A1 (en) * | 2002-09-27 | 2004-04-08 | Tesa Ag | originality seal |
| FR2937456B1 (en) * | 2008-10-17 | 2012-01-27 | Plasto | DEVICE, IN PARTICULAR LABEL, OF SAFETY FOR AUTHENTICATING A PRODUCT. |
-
2012
- 2012-11-28 DE DE102012221796.7A patent/DE102012221796B3/en active Active
-
2013
- 2013-11-14 CN CN201380061869.0A patent/CN104812862B/en active Active
- 2013-11-14 WO PCT/EP2013/073863 patent/WO2014082867A1/en active Application Filing
- 2013-11-14 EP EP13789816.9A patent/EP2925825A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629093A (en) * | 1994-07-08 | 1997-05-13 | Minnesota Mining And Manufacturing Company | Transparent multilayer film and its use for protection of data on documents as well as a tamper-proof label |
| CN101454416A (en) * | 2006-04-04 | 2009-06-10 | 伊士曼化工公司 | Pressure sensitive adhesive (psa) laminates |
| EP2096154A1 (en) * | 2008-02-28 | 2009-09-02 | tesa SE | Multi-layer adhesive for use as tamper-proof tape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104812862A (en) | 2015-07-29 |
| WO2014082867A1 (en) | 2014-06-05 |
| EP2925825A1 (en) | 2015-10-07 |
| DE102012221796B3 (en) | 2014-03-13 |
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Address after: Germany Norderstedt 22848 Hugo kiberg Street No. 1 Applicant after: Tesa Europe Corporation Address before: hamburg Applicant before: Tesa Europe Corporation |
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Effective date of registration: 20210809 Address after: Heidelberg, Germany Patentee after: Desarskopo Co.,Ltd. Address before: Germany Norderstedt 22848 Hugo kiberg Street No. 1 Patentee before: Tesa europe |
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