CN103254828A - Adhesive sheet, using method of adhesive sheet, and manufacturing method of adhesive sheet - Google Patents
Adhesive sheet, using method of adhesive sheet, and manufacturing method of adhesive sheet Download PDFInfo
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- CN103254828A CN103254828A CN2013100364554A CN201310036455A CN103254828A CN 103254828 A CN103254828 A CN 103254828A CN 2013100364554 A CN2013100364554 A CN 2013100364554A CN 201310036455 A CN201310036455 A CN 201310036455A CN 103254828 A CN103254828 A CN 103254828A
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- stripping film
- agent layer
- adhering agent
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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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- 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
- C09J7/22—Plastics; Metallised plastics
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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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- 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
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides an adhesive sheet. Residual adhesion is not liable to occur even if no complicated operation is conducted, and an adhesive layer is not liable to break when being processed and removed, that is to say, residuals of paste can be easily removed. The adhesive sheet is formed by an adhesive layer clamped by a light stripping sheet and a heavy stripping sheet. The adhesive sheet is characterized in that striping force between the light stripping sheet and the interface of the adhesive layer via a prescribed method is 30-90mN/25mm; striping force between the heavy stripping sheet and the interface of the adhesive layer via the prescribed method is 150-300mN/25mm; the thickness of the adhesive layer is 75-500 micrometers; the light stripping sheet is larger than the adhesive layer connected with the light stripping sheet; and at least a part of the distance between an end of the adhesive layer to an end of the light stripping sheet is 8-35mm.
Description
Technical field
The using method of sheet, adhesion sheet and the preparation method of adhesion sheet the present invention relates to adhere.In more detail, relate to the adhesion sheet by the high thickness of 2 different stripping film clampings of peeling force, this adhesion sheet has specific proterties, be difficult to take place residual adhesion phenomenon (when peeling off, can not only peel off from the stripping film of a side, the phenomenon that adhering agent layer is stretched between the stripping film of both sides), and adhering agent layer is carried out stamping adds man-hour, be difficult to produce the fracture (residue that is paste is removed bad) of adhering agent layer.The invention still further relates to the effective preparation method of this adhesion sheet and the using method of this adhesion sheet.
Background technology
Electrostatic capacity mode touch panel is the laminate structure of transparent substrate.In this laminar structure, near the member the fore side considers to use sheet glass from the viewpoint of designability.This sheet glass is subjected to the decorating printing of frame shape, has the effect of the electrode of hidden touch panel inside.Because this frame shape printing has difference of altitude, when the adhering agent layer of the low thickness of usefulness etc. carried out lamination, servo-actuated property (chasing after Cong) became insufficient, might sneak into bubble.Use the adhering agent layer of thick film when therefore, this is fitted.When using tackiness agent with thick film, because the operation in the operation might make yield rate reduction etc., use with the good sheet of operability usually.
In order to improve operation, as the shape by the stripping film (the light stripping film of peeling off at first) of the adhesion sheet of 2 different stripping film clampings of peeling force, use the stripping film as the part of peeling off starting point, that have no adhering agent layer (hereinafter referred to as " blank parts ") usually.When this stripping film was peeled off, this blank parts became the starting point of peeling off, but had the problem that residual adhesion phenomenon takes place.As described above, be provided with the adhesion sheet of the starting point of peeling off, prepare continuously in volume to volume mode etc. usually, at last it is cut off to make, for increase from each batch the sheet number, the area of above-mentioned blank parts of the starting point of peeling off that becomes the adhesion sheet is diminished.Therefore, also help the rigidity of film, peel angle diminishes.Usually, known peeling force depends on peel angle, and peel angle hour becomes the state that approaching face is peeled off, and it is big that peeling force becomes.In the past, as the countermeasure of residual adhesion phenomenon, by using the big stripping film of peeling force to deal with heavily peeling off side, but the problem that exists the excessive feasible heavy stripping film of peeling force not peel off on the contrary.
But, so far widely used is to make the peeling agent layer that will be have only formed the stripping film of peeling agent layer in one-sided (the adhering agent layer side) of stripping film base material to stick to adhesion sheet on the adhering agent layer, and after the sheet of should adhering carries out cross cutting, remove residue and form layered product.At this moment, tackiness agent overflows from the end face of cross cutting, is attached to the peeling agent layer opposition side with stripping film base material, and the label perk at the face opposite with the peeling agent layer of stripping film label takes place thus and moves stained problem, is becoming problem aspect yield rate or the productivity.
In addition, behind cross cutting, do not remove when forming layered product under the situation of residue because tackiness agent overflows from the cross cutting end face, also can occur label with the opposition side of the peeling agent layer of stripping film base material or the unfavorable condition of residue part perk.
In order to suppress overflowing of such tackiness agent, even perhaps tackiness agent overflows, in order to alleviate its influence, all schemes have been proposed.
For example, can enumerate the method (for example, with reference to patent documentation 1) that makes its curing at the prior irradiation ultraviolet radiation of cross cutting predetermined position of adhesion sheet, the tensile strength of tackiness agent is 5kg/cm
2More than, the tensile strength of stripper is 30kg/cm
2Above adhesion sheet (for example, with reference to patent documentation 2), adhering agent layer is by the inorganic filler of tackiness agent composition, calcium carbonate or aluminium hydroxide etc., the scheme that silane coupling agent forms (for example, with reference to patent documentation 3) etc.
Technical literature formerly
Patent documentation
Patent documentation 1: the spy opens flat 9-207097 communique
Patent documentation 2: the spy opens the 2000-1651 communique
Patent documentation 3: the spy opens the 2002-249734 communique
Summary of the invention
In the adhesion sheet that described patent documentation 1 proposes etc., have separately and suppress the effect that tackiness agent overflows, but also not exclusively, and the situation that exists complicated operation, productivity to reduce.
In addition, in the adhesion sheet that described patent documentation 2-3 proposes etc., need to adjust rerum natura or the composition of tackiness agent, and be not suitable for the tackiness agent of any purposes or rerum natura.
The invention of the present invention for finishing based on above-mentioned situation, even being to provide, purpose do not implement complicated operations, also be difficult to take place residual adhesion phenomenon, and add the residue that the fracture that is difficult to produce adhering agent layer man-hour namely is difficult to produce paste and remove bad adhesion sheet, the effective preparation method of this adhesion sheet and the using method of tackiness agent adhering agent layer being carried out stamping.
The present inventor, carried out further investigation repeatedly in order to realize described purpose, found that: the film rigidity of the area by being conceived to result from become the stripping film of the starting point of peeling off, the stripping film of thickness, found to be difficult to take place residual adhesion phenomenon, and add man-hour in that adhering agent layer is carried out stamping, the residue that is difficult to produce paste is removed the structure of bad adhesion sheet, finds simultaneously, by implementing specific operation, can prepare the adhesion sheet with described proterties efficiently.Further, as the using method of this tackiness agent, find that it is favourable peeling off with the angle of certain limit when peeling off the light stripping film of this adhesion sheet.
The present invention is based on above-mentioned opinion and finish.
That is, the invention provides:
[1] a kind of adhesion sheet, this adhesion sheet is formed by light stripping film and heavy stripping film clamping adhering agent layer, it is characterized in that, the peeling force at the described light stripping film of measuring by following measuring method (1) and the interface of described adhering agent layer is 30-90mN/25mm, the peeling force at the described heavy stripping film of measuring by following measuring method (2) and the interface of described adhering agent layer is 150-300mN/25mm, the thickness of described adhering agent layer is 75-500 μ m
The area of light stripping film than and the area of the adhering agent layer that joins of this light stripping film big, and at least part of end from described adhering agent layer is 8-35mm to the distance of the end of described light stripping film,
Measuring method (1): for the adhesion sheet sample of under 23 ℃, 50%RH condition, placing after 168 hours, according to JIS Z0237, after the sheet sample of should adhering is cut into wide 25mm * long 200mm, to weigh the stripping film side is fixed on the stainless steel plate, use tensile testing machine, light stripping film is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of light stripping film and adhering agent layer thus;
Measuring method (2): will peel off light stripping film and the adhering agent layer that exposes pastes on the stainless steel plate from described adhesion sheet sample, use tensile testing machine, heavy stripping film is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of heavy stripping film and adhering agent layer thus.
[2] according to above-mentioned [1] described adhesion sheet, wherein, the thickness of light stripping film is 25-75 μ m.
[3] according to above-mentioned [1] or [2] described adhesion sheet, wherein, the peeling force of heavy stripping film is more than 2.5 times of peeling force of light stripping film.
[4] according to any described adhesion sheet in above-mentioned [1]-[3], wherein, being shaped as of the tackiness agent aspect of joining with light stripping film and heavy stripping film is square.
[5] a kind of using method of the sheet of adhering is characterized in that, when any described adhesion sheet is peeled off in above-mentioned [1]-[4], peels off with 90-180 ° angle.
[6] preparation method of any described adhesion sheet in a kind of above-mentioned [1]-[4] is characterized in that this preparation method comprises following operation (a)) ~ operation (d),
Operation (a): will weigh stripping film successively, thickness is the adhering agent layer of 75-500 μ m and the protective film lamination lower than the peeling force of this heavy stripping film, obtains the operation of laminate (A);
Operation (b): with the shape that adhering agent layer and the protective film stamping of laminate (A) is processed into regulation, obtain the operation of laminate (B);
Operation (c): the protective film of the part of the shape of the adhering agent layer of the part beyond the shape of the protective film of the part beyond the shape of described regulation, described regulation and described regulation is removed from laminate (B), obtained the operation that described heavy stripping film is provided with the laminate (C) of described adhering agent layer;
Operation (d): light stripping film is fitted on the adhering agent layer of described laminate (C), so that at least part of end from described adhering agent layer is 8-35mm to the distance of the end of described light stripping film, obtain the operation of the adhesion sheet that formed by this light stripping film and this heavy this adhering agent layer of stripping film clamping.
According to the present invention, even can provide and not implement complicated operations, also be difficult to take place residual adhesion phenomenon, and add the residue that the fracture that is difficult to produce adhering agent layer man-hour namely is difficult to produce paste and remove bad adhesion sheet, the effective preparation method of this adhesion sheet and the using method of tackiness agent adhering agent layer being carried out stamping.
Description of drawings
Fig. 1 is the schematic cross-section of the formation of an example of expression adhesion sheet of the present invention.
Fig. 2 is the floor map of an example of expression adhering agent layer and light stripping film.
Fig. 3 is the schematic cross-section of the using method of an example of expression adhesion sheet of the present invention.
Fig. 4 is the preparation method's of the adhesion sheet of the present invention specification figure of an example.
The synoptic diagram (stereographic map) of an example of the adhesion sheet of the present invention that Fig. 5 makes among the embodiment for expression.
Description of reference numerals
1,1a adhering agent layer
The adhering agent layer of the part beyond the shape of 1b regulation
2 light stripping films
3 heavy stripping films
4,4a protective film
The protective film of the part beyond the shape of 4b regulation
5 stamping Working positions
6 base materials
7 adhesive coatings
8
The end of 11 adhering agent layers
The end of 21 light stripping films
100 adhesion sheets
200 laminate (A)
300 laminate (B)
400 laminate (C)
Embodiment
At first, adhesion sheet of the present invention is described.
[adhesion sheet]
Fig. 1 describes adhesion sheet of the present invention with reference to this Fig. 1 for the schematic cross-section of the formation of an example of expression adhesion sheet of the present invention.
(stripping film)
Among the present invention, the peeling force of the peeling force of described light stripping film 2 and heavy stripping film 3 is measured by measuring method shown below (1), (2) respectively
Measuring method (1): the peeling force of light stripping film 2
For the adhesion sheet sample of under 23 ℃, 50%RH condition, placing after 168 hours, according to JIS Z0237, after the sheet sample of should adhering is cut into wide 25mm * long 200mm, heavy stripping film 3 sides are fixed on the stainless steel plate, use tensile testing machine, light stripping film 2 is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of light stripping film 2 and adhering agent layer 1a thus.
Measuring method (2): the peeling force of heavy stripping film 3
To peel off light stripping film and the adhering agent layer that exposes pastes on the stainless steel plate from described adhesion sheet sample, use tensile testing machine, heavy stripping film 3 is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of heavy stripping film 3 and adhering agent layer 1a thus.
In the adhesion sheet of the present invention, the area that requires described light stripping film 2 is bigger with the area that this light stripping film 2 joins than adhering agent layer 1a, and at least part of end 11 from adhering agent layer 1a is 8-35mm to the end 21 of this light stripping film 2 apart from x.This when with finger light stripping film being caught and peeling off, can't obtain sufficient peel angle (more than 90 °) during apart from not enough 8mm, is easy to generate residual adhesion phenomenon.On the other hand, when longer than 35mm, during operation, might make a mistake causes and peels off.From the viewpoint, describedly be preferably 10-30mm apart from x.
In addition, among the present invention, " area of light stripping film 2 is bigger with the area that this light stripping film 2 joins than adhering agent layer 1a " refer to adhering agent layer 1a around be arranged on the form of inboard of the end of light stripping film 2, Fig. 2 is for representing the floor map of an one example.
In addition, among the present invention, " at least part of end from adhering agent layer 1a is 8-35mm to the end of this light stripping film 2 apart from x " refers to, for example, when adhering agent layer 1a and light stripping film 2 are square, one side the end 11 of the adhering agent layer 1a from Fig. 2 is being 8-35mm to the end 21 of this light stripping film 2 at least apart from x.
In this adhesion sheet, requirement is 30-90mN/25mm by the peeling force of the light stripping film 2 that described measuring method (1) is measured.During this peeling force is not enough 30mN/25mm, might produce mistake during operation and situation about peeling off, when bigger than 90mN/25mm, becoming is easy to generate residual adhesion phenomenon.From the viewpoint, the peeling force of preferred light stripping film 2 is 40-80mN/25mm.
On the other hand, requirement is 150-300mN/25mm by the peeling force of the heavy stripping film 3 of described measuring method (2) mensuration.During this peeling force deficiency 150mN/25mm, it is poor fully to guarantee with the peeling force of described light stripping film 2, and residual adhesion phenomenon easily takes place.In addition, when this peeling force is bigger than 300mN/25mm, adhering agent layer is carried out stamping add man-hour, the adhering agent layer fracture might take place less than the peeling force from heavy stripping film 3 in the cohesive force of this adhering agent layer, and namely the residue of paste is removed bad.From the viewpoint, the peeling force of preferred heavy stripping film 3 is 170-260mN/25mm.
In this adhesion sheet, from being difficult to produce the viewpoint consideration of residual adhesion phenomenon, the peeling force of heavy stripping film 3 is preferably more than 2.5 times of peeling force of light stripping film 2, more preferably more than 3.0 times.
The thickness of the described light stripping film 2 in the adhesion sheet of the present invention is preferably 25-75 μ m, more preferably 25-50 μ m.This thickness is 25 μ m when above, can make the foreign matter of this light stripping film discharge the surface, suppresses indenture (beating trace) takes place, and becomes the stripping film with good surface appearance.On the other hand, thickness is 75 μ m when following, and stripping film self rigidity (hardness) can be not strong excessively, can guarantee sufficient peel angle, therefore is difficult to take place residual adhesion phenomenon.
The thickness of the described heavy stripping film 3 in this adhesion sheet has no particular limits, and is generally the scope of 38-100 μ m.
The light stripping film 2 that uses in the adhesion sheet of the present invention and heavy stripping film 3 can be made by at substrate surface peeling agent layer being set.As the stripping film base material, can enumerate the resin film of polyethylene terephthalate, polyethylene, polypropylene, polybutene, polyhutadiene, polymethylpentene, polyvinyl chloride, vinyl chloride copolymer, polybutylene terephthalate, urethane, vinyl-vinyl acetate copolymer, ionomer resin, ethene (methyl) acrylic copolymer, polystyrene, polycarbonate, fluoro-resin, Low Density Polyethylene, straight-chain low density polyethylene, cellulose triacetate etc.; Free sheet, enamelled paper, glassine paper, laminated paper etc.Wherein, preferred cheap and pet film with hardness.
As the stripper that is formed in the peeling agent layer that arranges on the surface of described stripping film with base material, for example can enumerate silicon and be resin, fluorine resin, chain alkyl is resin etc., and wherein preferred silicon cheap and that can obtain stable performance is resin.The thickness of peeling agent layer is preferably 0.05-2.0 μ m, more preferably 0.1-1.5 μ m.
The peeling force of light stripping film and heavy stripping film adjustment can kind, the thickness of peeling agent layer, the stripping film of stripper wait to carry out with kind and the thickness thereof of base material by for example selecting.
(adhering agent layer)
Shown in the 1a of Fig. 1, the adhering agent layer in the adhesion sheet of the present invention, requiring its thickness is 75-500 μ m.During this thickness less than 75 μ m, because the smaller volume of the adhering agent layer of distortion, also there is situation about only can peel off by the difference of light stripping film and the peeling force of heavy stripping film in inapplicable the present invention.In addition, when surpassing 500 μ m, in the preparation method of adhesion sheet described later, carry out the processibility reduction that stamping adds man-hour.
Consider that from above-mentioned viewpoint the thickness of this adhering agent layer is preferably 80-400 μ m, more preferably 100-350 μ m.
In addition, the shape of adhering agent layer needs only the shape that has regulation according to purposes, has no particular limits.As " shape of regulation ", for example, can be any one of the tetragon of square, rectangle, trapezoidal, rhombus etc., trilateral, circle, ellipse, star etc., be generally the square of square or rectangular etc.
As the tackiness agent that constitutes the adhering agent layer in the adhesion sheet of the present invention, have no particular limits, can use various tackiness agents, for example can use acrylic acid series tackiness agent, rubber is that tackiness agent, silicon-type tackiness agent, polyurethane series tackiness agent, polyester are tackiness agent and ultraviolet hardening tackiness agent etc., wherein, consider from the viewpoint of weathering resistance, adhesive performance, economy etc., be fit to use the acrylic acid series tackiness agent.
＜tackiness agent 〉
Acrylic acid series tackiness agent as the tackiness agent that is fit to formation adhering agent layer of the present invention when, preferably containing (methyl) acrylate based copolymer as resinous principle, contains linking agent.
As this (methyl) acrylate based copolymer, the carbonatoms that can preferably enumerate the alkyl of ester moiety is (methyl) alkyl acrylate of 1-18 and the ethene monomer that contains bridging property functional group that uses as required or the multipolymer of other monomer.
[(methyl) alkyl acrylate]
Carbonatoms as the alkyl of ester moiety is (methyl) alkyl acrylate of 1-18, can enumerate methyl acrylate, methyl methacrylate, ethyl propenoate, Jia Jibingxisuanyizhi, propyl acrylate, propyl methacrylate, isopropyl acrylate, isopropyl methacrylate, n-butyl acrylate, n-BMA, isobutyl acrylate, Propenoic acid, 2-methyl, isobutyl ester, the just own ester of vinylformic acid, the just own ester of methacrylic acid, 2-EHA, methacrylic acid 2-ethylhexyl, lauryl acrylate, lauryl methacrylate(LMA), the vinylformic acid stearyl, methacrylic acid stearyl etc.They can use a kind separately, also can make up more than 2 kinds and use.
[the ethene monomer that contains bridging property functional group]
As the ethene monomer that contains bridging property functional group that uses as required, for example have the ethene monomer of functional groups such as hydroxyl, carboxyl, amino, substituted-amino, epoxy group(ing) for intramolecularly, preferably use hydroxyl ethene unsaturated compound, contain carboxyl ethene unsaturated compound.As the object lesson of such ethene monomer that contains bridging property functional group, can enumerate vinylformic acid 2-hydroxy methacrylate, 2-hydroxyethyl methacrylate, vinylformic acid 2-hydroxy propyl ester, methacrylic acid 2-hydroxy propyl ester, vinylformic acid 2-hydroxyl butyl ester, methacrylic acid 2-hydroxyl butyl ester, vinylformic acid 4-hydroxyl butyl ester, methacrylic acid 4-hydroxyl butyl ester, etc. the hydroxy acryl acid ester; Vinylformic acid, methacrylic acid, Ba Dousuan, toxilic acid, methylene-succinic acid, citraconic acid etc. contain carboxyl ethene unsaturated compound.The above-mentioned ethene monomer that contains bridging property functional group can use a kind separately, perhaps makes up more than 2 kinds and uses.
[other monomer]
As other the monomer that uses as required, can list (methyl) acrylate with ester ring type structure of cyclohexyl acrylate, isobornyl acrylate etc.; The vinyl esters of vinyl-acetic ester, propionate etc.; The olefines of ethene, propylene, iso-butylene etc.; The halogenated alkenes hydro carbons of vinylchlorid, vinylidene chloride etc.; The styrenic monomers of vinylbenzene, alpha-methyl styrene etc.; The diene monomer of divinyl, isoprene, chloroprene etc.; The nitrile of vinyl cyanide, methacrylonitrile etc. is monomer; N,N-DMAA, N, the N of N-dimethylmethacryl amide etc., N-dialkyl group substituted acrylamide class etc.They can use a kind separately, also can make up more than 2 kinds and use.
[making of (methyl) acrylate based copolymer]
At first, use described (methyl) alkyl acrylate and the ethene monomer that contains bridging property functional group that uses as required or other monomer with the ratio of stipulating separately, carry out copolymerization according to known method in the past, the preparation weight-average molecular weight is preferably about 500,000-1,500,000, (methyl) acrylate based copolymer of about 500,000-1,300,000 more preferably.
In addition, the polystyrene standard scaled value of above-mentioned weight-average molecular weight for measuring by gel permeation chromatography (GPC).
＜linking agent 〉
As linking agent contained in this tackiness agent, for example, can enumerate organic multicomponent isocyanate compound, organic multicomponent epoxy compounds, organic multicomponent group with imine moiety, metallo-chelate etc.Wherein, from improving cohesive force, the viewpoint that clinging power is improved, and easy acquired etc. viewpoint is considered preferred organic multicomponent isocyanate compound, organic multicomponent epoxy compounds, metallo-chelate.
As the organic multicomponent isocyanate compound, can enumerate 2, the 4-tolylene diisocyanate, 2, the 6-tolylene diisocyanate, 1,3-xylylene vulcabond, 1,4-xylylene vulcabond, ditan-4,4 '-vulcabond, ditan-2,4 '-vulcabond, 3-MDPM vulcabond, hexamethylene diisocyanate, isophorone diisocyanate, dicyclohexyl methyl hydride-4,4 '-vulcabond, dicyclohexyl methyl hydride-2,4 '-vulcabond, Lysine triisocyanate (リ ジ Application イ ソ シ ア ネ one ト) etc.
In addition, can use end that the reaction of the tripolymer of these multicomponent isocyanate compounds and these multicomponent isocyanate compounds and polyol compound obtains as the base polyurethane prepolymer for use as of isocyanic ester etc.
As the organic multicomponent epoxy compounds, bisphenol type epoxy compound, Bisphenol F type epoxy compounds, 1,3-two (N, N-diglycidyl amino methyl) toluene, N, N, N ', N '-four glycidyl group-4,4-diaminodiphenyl-methane etc.
As the organic multicomponent group with imine moiety, N, N '-ditan-4,4 '-two (1-aziridine acid amides) (N, N '-ジ Off ェ ニ Le メ タ Application-4,4 '-PVC ス (1-ア ジ リ ジ Application カ Le ボ キ シ ア ミ De)), TriMethylolPropane(TMP)-three-β-aziridinyl propionic ester (ト リ メ チ ロ ー Le プ ロ パ Application-ト リ-β-ア ジ リ ジ ニ Le プ ロ ピ オ ナ ー ト), tetramethylol methane-three-β-aziridinyl propionic ester (テ ト ラ メ チ ロ ー Le メ タ Application-ト リ-β-ア ジ リ ジ ニ Le プ ロ ピ オ ナ ー ト), N, N '-Toluene-2,4-diisocyanate, 4-two (1-aziridine acid amides) triethylene trimeric cyanamide etc.
As metallo-chelate, can enumerate the coordination compound etc. of multi-element metal of the aluminum chelate based compound etc. of three (methyl aceto acetate base) aluminium, methyl aceto acetate base aluminium diisopropyl ester, praseodynium aluminium etc.
In addition, these linking agents can use separately, perhaps also use more than 2 kinds.
The content of linking agent with respect to (methyl) acrylic ester copolymer 1 00 mass parts, is preferably the 0.01-10 mass parts, more preferably 0.1-7 mass parts, more preferably 0.2-4 mass parts.Being 0.01 mass parts when above, for the stress of shear direction, can keeping shape, can access the cohesive force of sufficient tackiness agent, is 10 mass parts when following, can access sufficient clinging power.
The preparation of＜tackiness agent 〉
This tackiness agent can be prepared by described (methyl) acrylate based copolymer, linking agent and other the interpolation appropriate solvent such as additive, for example tackifier, pigment, dyestuff, antioxidant, UV light absorber used are as required made the concentration that is suitable for being coated with.
[using method of adhesion sheet]
The present invention also provides when the light stripping film in the described adhesion sheet of the present invention is peeled off, and peels off the using method of the adhesion sheet that is feature with 90-180 ° angle.Among described Fig. 1, at least part of end 11 from adhering agent layer 1a to the end 21 of this light stripping film 2 be 8-35mm apart from x the time, can light stripping film be peeled off with the angle of above-mentioned scope, suppress the generation of residual adhesion phenomenon.
Fig. 3 is the schematic cross-section of an example of the using method of this adhesion sheet of expression.Among the present invention, " angle with 90-180 ° is peeled off " refer in Fig. 3 with the direction of delaminate y of light stripping film 2 and above the adhering agent layer 1a angulation z be that 90-180 ° scope is peeled off light stripping film 2.
Below, the preparation method of adhesion sheet of the present invention is described.
[preparation method of adhesion sheet]
The preparation method of adhesion sheet of the present invention is characterised in that to have following operation (a) ~ operation (d).
Operation (a): will weigh the adhering agent layer of stripping film, thickness 75-500 μ m and the protective film lamination lower than the peeling force of this heavy stripping film successively, and obtain the operation of laminate (A);
Operation (b): with the shape that adhering agent layer and the protective film stamping of laminate (A) is processed into regulation, obtain the operation of laminate (B);
Operation (c): the protective film of the part of the shape of the adhering agent layer of the part beyond the shape of the protective film of the part beyond the shape of described regulation, described regulation and described regulation is removed from laminate (B), obtained the operation that described heavy stripping film is provided with the laminate (C) of described adhering agent layer;
Operation (d): light stripping film is fitted on the adhering agent layer of described laminate (C), so that at least part of end from described adhering agent layer is 8-35mm to the distance of the end of this light stripping film, obtain the operation of the adhesion sheet that formed by this light stripping film and this heavy this adhering agent layer of stripping film clamping.
Fig. 4 is the preparation method's of the adhesion sheet of the present invention specification figure of an example, at this preparation method's concrete example, describes with reference to this Fig. 4.
(operation (a))
Operation (a) obtains the operation of laminate (A) for will weigh the adhering agent layer of stripping film, thickness 75-500 μ m and the protective film lamination lower than the peeling force of this heavy stripping film successively;
At first, the peeling force of preparing by described method mensuration is heavy stripping film 3[Fig. 4 (1) of 150-300mN/25mm].Then; lift-off processing face at this heavy stripping film 3 is coated with the tackiness agent coating fluid so that dried thickness is 75-500 μ m; dry adhering agent layer 1 back [Fig. 4 (2)] that forms; on this adhering agent layer 1; the protective film 4 that proportion stripping film 3 peeling forces are low is fitted in the mode that its lift-off processing face and adhering agent layer 1 join, obtain lamination successively the laminate 200(of heavy stripping film 3, adhering agent layer 1 and protective film 4 namely obtain laminate (A)) [Fig. 4 (3)].
As protective film 4, can use the film same with described light stripping film 2.In addition, in operation (a), also can be after protective film 4 form these adhering agent layers 1, the mode that heavy stripping film 3 is joined with its lift-off processing face and adhering agent layer 1 is fitted and is obtained laminate 200.
(operation (b))
Operation (b) is the shape that adhering agent layer and protective film stamping with described laminate (A) are processed into regulation, obtains the operation of laminate (B).By this operation, can form a plurality of adhering agent layers littler than the area of this heavy stripping film at 1 heavy stripping film, when for example preparing a plurality of adhesion sheet of the present invention continuously in the volume to volume mode, be favourable therefore.
In this operation (b), described laminate 200 is in the position of the arrow 5 shown in for example Fig. 4 (4), and light stripping film 2 and adhering agent layer 1 stamping are processed into the shape of regulation, and obtaining laminate 300(is laminate (B)) [Fig. 4 (5)].
(operation (c))
Operation (c) is that the protective film of the part of the shape of the adhering agent layer of the part beyond the shape of the protective film of the part beyond the shape of described regulation, described regulation and described regulation is removed from described laminate (B), obtains the operation that described heavy stripping film is provided with the laminate (C) of described adhering agent layer.
In this operation (c); order for the protective film of the part of the shape of the adhering agent layer of the part beyond the shape of the protective film of the part beyond the shape of removing described regulation, described regulation, described regulation has no particular limits, and also can a plurality ofly remove operation and carry out simultaneously.
For example; in described laminate 300; by implementing following operation: the protective film 4b of the part beyond the shape of the regulation shown in Fig. 4 (5) is removed; then the adhering agent layer 1b with the part beyond the shape of regulation removes; the protective film 4a that will have the shape of regulation then removes, and can access the laminate 400(that has the adhering agent layer 1a of the shape of regulation to form at heavy stripping film 3 upper strata pressing elements is laminate (C)) [Fig. 4 (6)].
In addition; in described laminate 300; by implementing following operation: the protective film 4b of the part beyond the shape of the regulation shown in Fig. 4 (5) is removed; then prepare to have at base material 6 sheet 8 of adhesive coating 7; the face [Fig. 4 (5 ')] of adhering agent layer 7 sides of sticking tablet 8 on the protective film 4a of the adhering agent layer 1b of the part beyond the shape of regulation and the shape with regulation; then it is peeled off; remove adhering agent layer 1b and protective film 4a simultaneously, also can access described laminate 400(is laminate (C)) [Fig. 4 (6)].
(operation (d))
Operation (d) is for to fit to light stripping film on the adhering agent layer of described laminate (C), so that at least part of end from described adhering agent layer is 8-35mm to the distance of the end of this light stripping film, obtain the operation of the adhesion sheet that formed by this light stripping film and this heavy this adhering agent layer of stripping film clamping.
In this operation (d), with light stripping film 2 with the mode that the adhering agent layer 1a in its lift-off processing face and the described laminate (C) 400 joins fit [Fig. 4 (7)].Light stripping film 2 is that the mode of 8-35mm is fitted with at least part of end from adhering agent layer 1a to the distance of the end of light stripping film 2 as hereinbefore.The applying of light stripping film, can use label sticking machine, the light stripping film that stamping in advance is processed into the shape of regulation fits on this adhering agent layer, also can only carry out again stamping processing to light stripping film in the volume to volume mode at this adhering agent layer light stripping film of fitting.
In addition, Fig. 4 (7) is identical with above-mentioned Fig. 1, and among this Fig. 1 is 8-35mm apart from x.
Embodiment
Below, the present invention will be described in more detail by embodiment, but the present invention is not subjected to any restriction of these examples.
In addition, measure the light stripping film that uses in each example and the peeling force that weighs stripping film by following method, simultaneously according to the residual adhesion phenomenon of following evaluation.
(1) peeling force of light stripping film
For the adhesion sheet of the state before the processing of the stamping made in each embodiment and each comparative example (the adhesion sheet after placing 168 hours under 23 ℃, 50%RH condition), according to JIS Z0237, the sheet of will adhering is cut into wide 25mm * long 200mm, use tensile testing machine (the オ リ エ of Co., Ltd. Application テ ッ Network system, ProductName " TENSILON UTM-4-100 "), to weigh stripping film is fixed on the stainless steel plate, light stripping film is stretched with 300mm/ minute the speed direction to 180 °, obtain peeling force thus.
(2) peeling force of heavy stripping film
In above-mentioned (1), the adhering agent layer of peeling off light stripping film and exposing is pasted pet film (eastern レ Co., Ltd. system, product is called " Le ミ ラ ー T60#25 ", thickness is 25 μ m) on, pet film is fixed on the stainless steel plate, use tensile testing machine (aforementioned), heavy stripping film is stretched with 300mm/ minute the speed direction to 180 °, obtain peeling force thus.
(3) evaluation of residual adhesion phenomenon
When light stripping film is peeled off, confirm the having or not of residual adhesion phenomenon at heavy stripping film/adhering agent layer interface with following condition.
A: carry out 20 times and confirm, residual adhesion phenomenon does not take place fully.
B: carry out 20 times and confirm, residual adhesion phenomenon takes place 1 time.
C: carry out 20 times and confirm, adhesion phenomenon residual more than 2 times takes place.
Formulation example (preparation of tackiness agent coating fluid)
At the acrylic copolymer (BA/AA mass ratio=90:10 that is formed by butyl acrylate (BA), vinylformic acid (AA), weight-average molecular weight is 600,000) hybrid epoxidized in 100 mass parts be linking agent (ガ ス KCC of Mitsubishi system, product is called " TETRAD-C ", concentration is 100%) 0.025 mass parts, with the methyl ethyl ketone dilution, preparation nonvolatile component concentration is the tackiness agent coating fluid of 40 quality %.
Embodiment 1
In heavy stripping film (Lindeke Co., Ltd's system; product is called " SP-PET753030 "; thickness: 75 μ m) going up with dried thickness is that the mode of 175 μ m is coated with the tackiness agent coating fluid that obtains in the formulation example; oven drying with 130 ℃; in the adhering agent layer that forms protective film (the Lindeke Co., Ltd's system of fitting; product is called " SP-PET382120 ", thickness: 38 μ m), obtain the sheet of adhering.After placing for 1 week at normal temperatures, protective film and adhering agent layer stamping processing (flat-die is towards processing mode) are become the size of vertical 60mm * horizontal 40mm from the protective film face.Then remove the not part (part beyond the vertical 60mm * horizontal 40mm of above-mentioned stamping processing) of protective film, and then remove not part and the remaining protective film of adhering agent layer.Then, use label sticking machine, the stamping processing (flat-die is towards processing mode) of preparing is in addition become light stripping film (Lindeke Co., Ltd's system of vertical 90mm * horizontal 45mm, product is called " SP-PET382120 ", thickness: lift-off processing face 38 μ m) fits on the adhering agent layer, obtains the adhesion sheet of embodiment 1.Fig. 5 represents the synoptic diagram (stereographic map) of the adhesion sheet that the embodiment of the present application is made.The serve as reasons adhering agent layer 1a of light stripping film 2 and 3 clampings of heavy stripping film of dotted line part.
The light stripping film of this adhesion sheet is peeled off with the angle shown in the 1st table, estimated residual adhesion phenomenon.Its result and each condition are shown in the 1st table.
Except light stripping film is changed to Lindeke Co., Ltd's system, product is called " SP-PET502120 ", thickness: beyond the 50 μ m, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimate residual adhesion phenomenon.Its result is shown in the 1st table.
Change to Lindeke Co., Ltd's system except weighing stripping film, product is called " SP-PET752150 ", thickness: beyond the 75 μ m, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimate residual adhesion phenomenon.Its result is shown in the 1st table.
Embodiment 4
Except light stripping film being changed to Lindeke Co., Ltd's system of vertical 70mm * horizontal 40mm, product is called " SP-PET252120 ", thickness: 25 μ m, and beyond will changing to 10mm to the distance of the end of light stripping film from the end of adhesion sheet, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimated residual adhesion phenomenon.Its result is shown in the 1st table.
Embodiment 5
Except the thickness with adhering agent layer changes to 350 μ m, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimate residual adhesion phenomenon.Its result is shown in the 1st table.
Embodiment 6
Except the thickness with adhering agent layer changes to 80 μ m, and light stripping film is changed to Lindeke Co., Ltd's system, product is called " SP-PET382120 ", thickness: beyond the 38 μ m, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimated residual adhesion phenomenon.Its result is shown in the 1st table.
Comparative example 1
Except the size with light stripping film changes to vertical 67mm * horizontal 40mm, and beyond will changing to 7mm to the distance of the end of light stripping film from the end of adhesion sheet, make the adhesion sheet similarly to Example 1, light stripping film is peeled off with the angle shown in the 1st table, estimate residual adhesion phenomenon.Its result is shown in the 1st table.
Comparative example 2
Except the size with light stripping film changes to vertical 67mm * horizontal 40mm, and beyond will changing to 7mm to the distance of the end of light stripping film from the end of adhesion sheet, make the adhesion sheet similarly to Example 2, light stripping film is peeled off with the angle shown in the 1st table, estimate residual adhesion phenomenon.Its result as
Shown in the 1st table.
Table 1
The 1st table
From the 1st table as can be known, the residual adhesion phenomenon evaluation of the adhesion sheet that obtains among the embodiment 1-6 is " A ".
Relative therewith, as to obtain in the comparative example 1 and 2 adhesion sheet, the length of the end from its end to light stripping film is as short as 7mm, therefore is difficult to catch with finger, and can not make peel angle is more than 90 °, and residual adhesion phenomenon evaluation is " C ".
Industrial applicibility
Do not implement complicated operations even adhesion sheet of the present invention has, also be difficult to take place residual adhesion phenomenon, and add the residue that the fracture that is difficult to produce adhering agent layer man-hour namely is difficult to produce paste and remove bad feature adhering agent layer being carried out stamping.In addition, according to the preparation method of adhesion sheet of the present invention, can prepare this adhesion sheet effectively.
Claims (11)
- One kind the adhesion sheet, this adhesion sheet is formed by light stripping film and heavy stripping film clamping adhering agent layer, it is characterized in that, the peeling force at the described light stripping film of measuring by following measuring method (1) and the interface of described adhering agent layer is 30-90mN/25mm, the peeling force at the described heavy stripping film of measuring by following measuring method (2) and the interface of described adhering agent layer is 150-300mN/25mm, the thickness of described adhering agent layer is 75-500 μ mThe area of light stripping film than and the area of the adhering agent layer that joins of this light stripping film big, and at least part of end from described adhering agent layer is 8-35mm to the distance of the end of described light stripping film,Measuring method (1): for the adhesion sheet sample of under 23 ℃, 50%RH condition, placing after 168 hours, according to JIS Z0237, after the sheet sample of should adhering is cut into wide 25mm * long 200mm, to weigh the stripping film side is fixed on the stainless steel plate, use tensile testing machine, light stripping film is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of light stripping film and adhering agent layer thus;Measuring method (2): will peel off light stripping film and the adhering agent layer that exposes pastes on the stainless steel plate from described adhesion sheet sample, use tensile testing machine, heavy stripping film is stretched with 300mm/ minute the speed direction to 180 °, measure the peeling force at the interface of heavy stripping film and adhering agent layer thus.
- 2. adhesion sheet according to claim 1, wherein, the thickness of light stripping film is 25-75 μ m.
- 3. adhesion sheet according to claim 1, wherein, the peeling force of heavy stripping film is more than 2.5 times of peeling force of light stripping film.
- 4. adhesion sheet according to claim 2, wherein, the peeling force of heavy stripping film is more than 2.5 times of peeling force of light stripping film.
- 5. according to any described adhesion sheet among the claim 1-4, wherein, being shaped as of the tackiness agent aspect of joining with light stripping film and heavy stripping film is square.
- 6. the using method of the sheet of adhering is characterized in that, when any described adhesion sheet is peeled off among the claim 1-5, peels off with 90-180 ° angle.
- 7. the preparation method of the described adhesion sheet of claim 1 is characterized in that, this preparation method comprises following operation (a) ~ operation (d),Operation (a): will weigh stripping film successively, thickness is the adhering agent layer of 75-500 μ m and the protective film lamination lower than the peeling force of this heavy stripping film, obtains the operation of laminate (A);Operation (b): with the shape that adhering agent layer and the protective film stamping of laminate (A) is processed into regulation, obtain the operation of laminate (B);Operation (c): the protective film of the part of the shape of the adhering agent layer of the part beyond the shape of the protective film of the part beyond the shape of described regulation, described regulation and described regulation is removed from laminate (B), obtained the operation that described heavy stripping film is provided with the laminate (C) of described adhering agent layer;Operation (d): light stripping film is fitted on the adhering agent layer of described laminate (C), so that at least part of end from described adhering agent layer is 8-35mm to the distance of the end of described light stripping film, obtain the operation of the adhesion sheet that formed by this light stripping film and this heavy this adhering agent layer of stripping film clamping.
- 8. preparation method according to claim 7, wherein, the thickness of light stripping film is 25-75 μ m.
- 9. preparation method according to claim 7, wherein, the peeling force of heavy stripping film is more than 2.5 times of peeling force of light stripping film.
- 10. preparation method according to claim 8, wherein, the peeling force of heavy stripping film is more than 2.5 times of peeling force of light stripping film.
- 11. according to any described preparation method among the claim 7-10, wherein, being shaped as of the tackiness agent aspect of joining with light stripping film and heavy stripping film is square.
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| JP2012-031636 | 2012-02-16 | ||
| JP2012031636A JP5856867B2 (en) | 2012-02-16 | 2012-02-16 | Pressure-sensitive adhesive sheet, method of using pressure-sensitive adhesive sheet, and method of manufacturing pressure-sensitive adhesive sheet |
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| JP (1) | JP5856867B2 (en) |
| KR (1) | KR101984315B1 (en) |
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| KR20080087971A (en) * | 2007-03-28 | 2008-10-02 | 동우 화인켐 주식회사 | Pressure sensitive adhesive transfer-tape used in article for liquid crystal display |
| CN101537726A (en) * | 2008-03-18 | 2009-09-23 | 琳得科株式会社 | Stripping film, polarizing film with stripping film and two-sided bonding sheet without base material |
| CN101955738A (en) * | 2009-07-16 | 2011-01-26 | 日东电工株式会社 | Double-sided pressure-sensitive adhesive tape |
| JP2011201999A (en) * | 2010-03-25 | 2011-10-13 | Sumitomo Chemical Co Ltd | Separation method and separation device |
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| CN103360965A (en) * | 2012-03-30 | 2013-10-23 | 琳得科株式会社 | Substrate-free two-sided adhesive tape and manufacturing method thereof, and adhesive tape reel and manufacturing method thereof |
| CN104254583A (en) * | 2012-04-27 | 2014-12-31 | 日立化成株式会社 | Adhesive sheet for image display device, method for manufacturing image display device, and image display device |
| CN104254583B (en) * | 2012-04-27 | 2016-06-15 | 日立化成株式会社 | Device used for image display adhesive sheet, the manufacture method of image display device and image display device |
| CN103725214A (en) * | 2012-10-11 | 2014-04-16 | 日东电工株式会社 | Laminate |
| CN105171839A (en) * | 2015-06-04 | 2015-12-23 | 南京冠佳科技有限公司 | Masking tape die cutting production method |
| US11078383B2 (en) | 2017-08-25 | 2021-08-03 | 3M Innovative Properties Company | Adhesive articles permitting damage free removal |
| US11898069B2 (en) | 2017-08-25 | 2024-02-13 | 3M Innovative Properties Company | Adhesive articles permitting damage free removal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5856867B2 (en) | 2016-02-10 |
| KR101984315B1 (en) | 2019-05-30 |
| TWI555816B (en) | 2016-11-01 |
| KR20130094748A (en) | 2013-08-26 |
| JP2013166884A (en) | 2013-08-29 |
| TW201339276A (en) | 2013-10-01 |
| CN103254828B (en) | 2016-06-22 |
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