CN110183977A - Adhesive sheet coiling body - Google Patents

Adhesive sheet coiling body Download PDF

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Publication number
CN110183977A
CN110183977A CN201811497642.1A CN201811497642A CN110183977A CN 110183977 A CN110183977 A CN 110183977A CN 201811497642 A CN201811497642 A CN 201811497642A CN 110183977 A CN110183977 A CN 110183977A
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CN
China
Prior art keywords
adhesive sheet
film
agent layer
methyl
adhering agent
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Granted
Application number
CN201811497642.1A
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Chinese (zh)
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CN110183977B (en
Inventor
高桥洋一
大西乡
荒井隆行
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Lintec Corp
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Lintec Corp
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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
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/062—Copolymers with monomers not covered by C09J133/06
    • C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
    • 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
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • 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
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

The present invention provides a kind of adhesive sheet coiling body (1), it is to have the first film (11), it is laminated in the adhering agent layer (12) of the single-face side of the first film (11), and be laminated in the second film (13) of the surface side opposite with the first film (11) of adhering agent layer (12) strip adhesive sheet (10) using by the face of the first film (11) side as inside in a manner of, it is wound in adhesive sheet coiling body (1) made of cylindric or cylindric core material (20), first film (11) with a thickness of 100 μm or more, 300 μm or less, adhering agent layer (12) with a thickness of 100 μm or more, 1000 μm or less, the diameter of core material (20) is 9cm or more, 100cm or less.According to the adhesive sheet coiling body (1), the adhesive sheet with excellent appearance can be unreeled.

Description

Adhesive sheet coiling body
Technical field
The present invention relates to a kind of adhesive sheet coiling body, have the adhering agent layer with thicker thickness, such as is suitble to use In display body (display).
Background technique
In general, the thickness of the adhering agent layer of adhesive sheet can carry out appropriate adjustment according to its purposes.For example, as using Show adhesive sheet used in the manufacture of the display of module, selection has the adhesion of the thicker adhering agent layer of thickness sometimes Piece.Such on the way, from the angle for the image quality for improving display, can the protection panels for constituting the display with Adhering agent layer is filled in gap between display module.Herein, as above-mentioned protection panels, the printing of border shape also can be used Layer is present in the protection panels of its display body module side as segment difference.At this point, carrying out by using with thicker thickness The layer of degree is as adhering agent layer, so that the adhering agent layer be made to follow above-mentioned segment difference well, thus inhibits the light near segment difference The problem of reflection loss etc.
In addition, a kind of double-faced pressure-sensitive adhesive sheet is disclosed in patent document 1, for for the fixed structure for constituting mobile electronic device The double-faced pressure-sensitive adhesive sheet of part has the acrylic compounds adhering agent layer with a thickness of 280 μm or more.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2015-147873 bulletin
Summary of the invention
The technical problem to be solved in the present invention
However, adhesive sheet is usually manufactured with the state of strip and is wound in cylindric or cylindric core material, It is made into adhesive sheet coiling body.Herein, for it is as described above, have the adhesive sheet of thicker adhering agent layer for, be made When adhesive sheet coiling body, it is easy to produce apparent problem.For example, in the adhesive sheet unreeled by such adhesive sheet coiling body, Many folds are generated sometimes.
The present invention is completed in view of above-mentioned actual conditions, and its purpose is to provide one kind can unreel with excellent The adhesive sheet coiling body of the adhesive sheet of appearance.
Solve the technological means of technical problem
In order to achieve the above objectives, first, the present invention provides a kind of adhesive sheet coiling body, to have the first film, stacking In the single-face side of first film adhering agent layer and be laminated in the surface side opposite with first film of the adhering agent layer The adhesive sheet of the strip of second film using by the face of first film side as inside in a manner of, be wound in cylindric or cylinder Adhesive sheet coiling body made of the core material of shape, which is characterized in that first film with a thickness of 100 μm or more, 300 μm hereinafter, The adhering agent layer with a thickness of 100 μm or more, 1000 μm hereinafter, the core material diameter be 9cm or more, 100cm or less (hair It is bright 1).
The adhesive sheet coiling body of foregoing invention (invention 1) passes through the first film, the sticker for making to have with above-mentioned thickness Layer and the second film adhesive sheet using by the face of the first film side be used as on the inside of in a manner of be wound in the core material with above-mentioned diameter It forms, the generation that can unreel fold is able to the adhesive sheet with good appearance inhibited.
In foregoing invention (invention 1), the thickness of preferably described first film is thicker than the thickness of second film (invention 2).
In foregoing invention (invention 1,2), storage modulus of the adhering agent layer at 23 DEG C be preferably 0.001MPa or more, 1.00MPa or less (invention 3).
In foregoing invention (invention 1~3), Young's modulus of first film at 23 DEG C be preferably 0.01GPa or more, 20GPa or less (invention 4).
In foregoing invention (invention 1~4), preferably: at least part of the width direction of the adhering agent layer exist than Thin 2 μm of the maximum gauge of the adhering agent layer of the width direction or more of low film thickness portion, the width in the low film thickness portion add up to 5% or more, 50% or less (invention 5) of the overall width of the adhering agent layer.
In foregoing invention (invention 5), the length in the low film thickness portion for unreeling direction of the adhesive sheet coiling body is preferred For 1m or more (invention 6).
In foregoing invention (invention 1~6), the volume number of the adhesive sheet is preferably 3 circles or more (invention 7).
Invention effect
Adhesive sheet coiling body according to the present invention, can unreel the adhesive sheet with excellent appearance.
Detailed description of the invention
Fig. 1 is the perspective view of the adhesive sheet coiling body of an embodiment of the invention.
Fig. 2 is the sectional view for constituting the adhesive sheet of adhesive sheet coiling body of an embodiment of the invention.
Description of symbols
1: adhesive sheet coiling body；10: adhesive sheet；11: the first films；12: adhering agent layer；13: the second films；20: core material.
Specific embodiment
Hereinafter, embodiments of the present invention will be described.
The solid of the adhesive sheet coiling body of an embodiment of the invention is illustrated in Fig. 1.As shown in Figure 1, this implementation The adhesive sheet coiling body 1 of mode is formed by making the adhesive sheet 10 of strip be wound in cylindric or cylindric core material 20.
In addition, showing the sectional view of the adhesive sheet 10 of present embodiment in Fig. 2.As shown in Fig. 2, the adhesion of present embodiment Piece 10 have the first film 11, the single-face side for being laminated in the first film 11 adhering agent layer 12 and be laminated in adhering agent layer 12 with Second film 13 of the opposite surface side of one film 11.
Herein, the adhesive sheet coiling body 1 of present embodiment by make adhesive sheet 10 using by the face of its 11 side of the first film as The mode of inside is wound in core material 20 and forms.
In the adhesive sheet coiling body 1 of present embodiment, adhering agent layer 12 with a thickness of 100 μm or more, 1000 μm or less.And And first film 11 with a thickness of 100 μm or more, 300 μm hereinafter, and core material 20 diameter be 9cm or more, 100cm or less.Such as This, in the adhesive sheet coiling body 1 of present embodiment, by making adhesive sheet 10 will have the first film of 100 μm or more of thickness 11 sides are wound in the core material 20 that diameter is 9cm or more as the mode of inside, even if adhering agent layer 12 has 100 μm or more of thickness Degree, the generation that can also unreel fold are able to the adhesive sheet 10 inhibited.That is, adhesive sheet coiling body 1 according to the present embodiment, it can Unreel the adhesive sheet with good appearance.In addition, when core material 20 is cylindric, the diameter of core material 20 is in this specification Refer to the outer diameter of the cylinder.
In addition, in this specification, the fold that is generated in the adhesive sheet that is unreeled by adhesive sheet coiling body refer to adhesive sheet The inclined fold and adhesive sheet that at least part is crooked and generates bend and lead to any one in the folding line generated.
1. the composition of adhesive sheet coiling body
(1) adhering agent layer
The adhering agent layer 12 of present embodiment with a thickness of 100 μm or more.By make adhering agent layer 12 with a thickness of 100 μm More than, the adhesive sheet 10 of present embodiment is suitable for requiring the purposes of the adhering agent layer of thicker thickness.Go out from such angle Hair, the thickness of adhering agent layer 12 is preferably 140 μm or more, and particularly preferably 180 μm or more.On the other hand, for adhering agent layer Though the upper limit of 12 thickness is not particularly limited, usually 1000 μm hereinafter, preferably 500 μm hereinafter, particularly preferably 300 μm or less.
From the angle for the generation for being further reduced fold, energy storage of the adhering agent layer 12 of present embodiment at 23 DEG C Modulus is preferably 0.001MPa or more, particularly preferably 0.005MPa or more, further preferably 0.01MPa or more.In addition, should Storage modulus be preferably 1.00MPa hereinafter, more preferably 0.5MPa hereinafter, particularly preferably 0.2MPa hereinafter, further preferably For 0.09MPa or less.By making the above-mentioned upper limit value of storage modulus of the adhering agent layer 12 at 23 DEG C, even if by this embodiment party In the case that the adhesive sheet 10 of formula is attached at adherend of the surface with segment difference, when carrying out the attaching, adhering agent layer 12 also can Segment difference is followed better.In addition, shown in the test method of above-mentioned storage modulus test example as be described hereinafter.
As long as the sticker for constituting the adhering agent layer 12 of present embodiment can constitute the sticker with above-mentioned thickness Layer 12 does not limit then, can suitably be selected depending on the application.For example, the sticker for constituting adhering agent layer 12 can be acrylic acid Class sticker, silicone sticker, rubber sticker, urethane esters sticker, polyesters sticker, polyvinyl Any one in ethers sticker etc..In addition, sticker can be any one in emulsion type, solvent type or no-solvent type Kind, it can also be any one in cross-linking type or non-crosslinked type.Wherein, go out from the easy angle for playing desired adhesion strength Hair, the sticker as the adhering agent layer 12 for constituting present embodiment is, it is preferable to use acrylic compounds sticker.
In addition, the sticker for constituting adhering agent layer 12 can be the sticker of active energy ray-curable, or The sticker of active energy beam non-curable.The sticker for constituting adhering agent layer 12 is the adhesion of active energy ray-curable When agent, which can be that active energy has been carried out in the state of having manufactured the adhesive sheet coiling body 1 of present embodiment It measures the sticker of actinic radiation-curable or not yet carries out the sticker of active energy ray-curable.Wherein, present embodiment is constituted The sticker of adhering agent layer 12 is preferably the sticker of active energy ray-curable, is particularly preferably manufacturing this embodiment party The sticker of active energy ray-curable is not yet carried out in the state of the adhesive sheet coiling body 1 of formula.Although such sticker exists It is softer before solidification, but when adhering agent layer 12 is made of such sticker, and its thickness is thicker, according to the present embodiment Adhesive sheet coiling body 1, can also effectively inhibit the generation of fold.Therefore, for the adhesive sheet coiling body 1 of present embodiment For, adhering agent layer 12 for active energy ray-curable and in the state of having manufactured adhesive sheet coiling body 1 by not yet carrying out The case where sticker of active energy ray-curable is constituted is ideal.
As described above, not yet living by using in the state of having manufactured the adhesive sheet coiling body 1 of present embodiment The sticker of the energy ray curing active energy ray-curable of property, the adhesive sheet 10 of present embodiment are suitble to be attached at surface Adherend with segment difference.That is, adhering agent layer 12 is attached at adherend with the state for not carrying out active energy ray-curable, After so that adhering agent layer 12 is followed segment difference well, by carrying out active energy ray-curable, to sufficiently improve adhering agent layer 12 Cohesiveness.Even if the adhering agent layer 12 after solidifying as a result, is placed in high temperature and humidity condition to be attached at the state of adherend, Also the generation can inhibit the bubble near segment difference well, float, peel off etc..
Hereinafter, constituting the adhering agent layer of present embodiment using the acrylic compounds sticker of active energy ray-curable 12, it is especially that active energy is not yet carried out in the state of having manufactured the adhesive sheet coiling body 1 of present embodiment to the sticker The case where measuring the sticker of actinic radiation-curable is illustrated.Such adhering agent layer 12 be for example able to use adherence composition (with Under, sometimes referred to as " adherence composition P ") it is crosslinked the composition of sticker made of (heat cross-linking), the adherence composition contains (methyl) acrylate copolymer (A), crosslinking agent (B) and active energy ray-curable ingredient (C).In addition, the adherence group It closes object P and preferably further contains Photoepolymerizationinitiater initiater (D) according to required.In addition, in the present specification, (methyl) acrylic acid refers to Acrylic acid and methacrylic acid.Other similar terms are also identical.In addition, also including the concept of " copolymer " in " polymer ".
(1-1) (methyl) acrylate copolymer (A)
It is preferred that (methyl) acrylate copolymer (A) includes that intramolecular has the reactive group reacted with crosslinking agent (B) Monomer containing reactive group as constitute the polymer monomeric unit.Reaction from the monomer containing reactive group as a result, Property group can be reacted with crosslinking agent (B).
As above-mentioned monomer containing reactive group, monomer (the hydroxyl list that intramolecular has hydroxyl is preferably enumerated Body), monomer (carboxyl group-containing monomer) of the intramolecular with carboxyl, intramolecular there is monomer (emulsion stability) of amino etc..Wherein, The particularly preferably hydroxyl monomer excellent, few to the adverse effect of adherend with the reactivity of crosslinking agent (B).
As hydroxyl monomer, such as (methyl) acrylic acid 2- hydroxy methacrylate, (methyl) acrylic acid 2- hydroxyl can be enumerated Propyl ester, (methyl) acrylic acid 3- hydroxy propyl ester, (methyl) acrylic acid 2- hydroxybutyl, (methyl) acrylic acid 3- hydroxybutyl, (first Base) acrylic acid 4- hydroxybutyl etc. (methyl) hydroxyalkyl acrylates etc..Wherein, from (methyl) acrylate obtained Hydroxyl in copolymer (A) sets out with the reactivity of crosslinking agent (B) and with the point of the copolymerizable of other monomers, preferably (methyl) Acrylic acid 2- hydroxy methacrylate or (methyl) acrylic acid 4- hydroxybutyl.They may be used alone, can also be used in combination two kinds More than.
(methyl) acrylate copolymer (A) preferably comprise lower limit value be 1 mass % or more hydroxyl monomer as structure At the monomeric unit of the polymer, further preferably 5 mass % or more, particularly preferably contain 10 mass % or more, it is further excellent Choosing contains 12 mass % or more.In addition, it is that 30 mass % are below that (methyl) acrylate copolymer (A), which preferably comprises upper limit value, Hydroxyl monomer is as the monomeric unit for constituting the polymer, particularly preferably containing 25 mass % hereinafter, further preferably 20 mass % or less.
(methyl) alkyl acrylate that (methyl) acrylate copolymer (A) is 1~20 by the carbon atom number containing alkyl Base ester can show preferred adherence as the monomeric unit for constituting the polymer.Carbon atom number as alkyl is 1~20 (methyl) alkyl acrylate, such as (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propylene can be enumerated Propyl propionate, (methyl) n-butyl acrylate, (methyl) acrylic acid n-pentyl ester, (methyl) the just own ester of acrylic acid, (methyl) acrylic acid 2- ethylhexyl, (methyl) Isooctyl acrylate monomer, the positive last of the ten Heavenly stems ester of (methyl) acrylic acid, (methyl) acrylic acid n-dodecane base ester, (first Base) myristyl ester, (methyl) acrylic acid palm ester, (methyl) stearyl acrylate base ester etc..Wherein, from further increasing The angle of adherence is set out, (methyl) alkyl acrylate that the carbon atom number of optimizing alkyl is 4~8, particularly preferred (methyl) 2-EHA.In addition, they can be used alone, also can be used in combination two or more.
(methyl) acrylate copolymer (A) preferably comprise 40 mass % or more, particularly preferably containing 50 mass % or more, (methyl) alkyl acrylate that further preferably carbon atom number of the alkyl of 60 mass % or more is 1~20, which is used as, to be constituted The monomeric unit of the polymer.Furthermore it is preferred that (methyl) third that the carbon atom number containing 90 mass % alkyl below is 1~20 Olefin(e) acid Arrcostab, particularly preferably containing 80 mass % hereinafter, further preferably 70 mass % or less.
(methyl) acrylate copolymer (A) is it is also preferred that comprising intramolecular there is the monomer of ester ring type structure (to contain ester ring type Structures alone) as the monomeric unit for constituting the copolymer.Since the volume of the structures alone containing ester ring type is big, can estimate logical Crossing is present in it in polymer, can expand the mutual interval of polymer, and the flexibility of the sticker enabled to is excellent.It is logical Crossing makes (methyl) acrylate copolymer (A) include structures alone containing ester ring type, even if by the adhesive sheet 10 of present embodiment When being attached at surface has the adherend of segment difference, adhering agent layer 12 can also follow the segment difference when attaching well.
The carbocyclic ring of ester ring type structure in structures alone containing ester ring type can be saturated structures, can also have in a part Unsaturated bond.In addition, ester ring type structure can be the ester ring type structure of monocycle, or the polycyclic alicyclic ring such as bicyclic, tricyclic Formula structure.From the mutual distance for expanding obtained (methyl) acrylate copolymer (A), the soft of sticker is effectively played Soft angle is set out, and preferably above-mentioned ester ring type structure is polycyclic ester ring type structure (multiring structure).In addition, it is contemplated that (first Base) acrylate copolymer (A) and other compositions compatibility, particularly preferred above-mentioned multiring structure is bicyclic to Fourth Ring.In addition, From the angle of the effect of the flexibility for effectively playing sticker same as described above, the carbon atom number of ester ring type structure (referring to form all carbon atom numbers of the part of ring, when being individually present multiple rings, refer to its total carbon atom number) is preferably generally 5 More than, particularly preferably 7 or more.On the other hand, the upper limit of the carbon atom number of ester ring type structure is not particularly limited, but from it is upper The angle for stating identical compatibility is set out, and preferably 15 hereinafter, particularly preferably 10 or less.
As ester ring type structure, for example, can enumerate comprising cyclohexyl skeleton, dicyclopentadiene skeleton, adamantane framework, Isobornyl skeleton, cycloalkanes hydrocarbon skeleton (cycloheptane skeleton, cyclooctane skeleton, cyclononane skeleton, cyclodecane skeleton, ring hendecane Skeleton, cyclododecane skeleton etc.), cyclic olefin backbone (cycloheptene skeleton, cyclo-octene skeleton etc.), enb skeleton, norborneol The ester ring type structure of diene skeleton, cubane skeleton, basket alkane skeleton, room alkane skeleton, spirocyclic ring scaffold etc., wherein preferably comprise hair Wave superior durability, the dicyclopentadiene skeleton (carbon atom number of ester ring type structure: 10), adamantane framework (ester ring type The carbon atom number of structure: 10) or isobornyl skeleton (carbon atom number of ester ring type structure: ester ring type structure 7), particularly preferably Ester ring type structure comprising isobornyl skeleton.
As above-mentioned structures alone containing ester ring type, (methyl) acrylate monomer of above-mentioned skeleton is preferably comprised, specifically For, (methyl) cyclohexyl acrylate, (methyl) dicyclopentyl acrylate, (methyl) acrylic acid adamantyl can be enumerated Ester, (methyl) isobornyl acrylate, (methyl) acrylic acid dicyclopentenyl base ester, (methyl) acrylic acid dicyclopentenyl oxygroup second Ester etc., wherein preferably play superior durability, (methyl) dicyclopentyl acrylate, (methyl) acrylic acid adamantane Base ester or (methyl) isobornyl acrylate, particularly preferred (methyl) isobornyl acrylate.They can be used alone one kind, It can be used in combination two or more.
(methyl) acrylate copolymer (A) contains structures alone containing ester ring type as the monomeric unit for constituting the polymer When, (methyl) acrylate copolymer (A) preferably comprises the structures alone containing ester ring type of 3 mass % or more, particularly preferably contains 5 Quality % or more, further preferably 8 mass % or more.In addition, (methyl) acrylate copolymer (A) preferably comprises 35 matter Measure % structures alone containing ester ring type below as constitute the polymer monomeric unit, particularly preferably contain 25 mass % with Under, further preferably 15 mass % or less.By making the content of the structures alone containing ester ring type in above-mentioned range, obtain The segment difference tracing ability of sticker become more excellent.
(methyl) acrylate copolymer (A) is it is also preferred that have the monomer (nitrogen atom monomer) of nitrogen-atoms comprising intramolecular As the monomeric unit for constituting the copolymer.In addition, the emulsion stability illustrated as monomer containing reactive group does not include In the nitrogen atom monomer.It is present in polymer and making nitrogen atom monomer as Component units, third can be promoted Olefin(e) acid ester copolymer (A) is reacted with crosslinking agent (B's), or can assign polarity to sticker, improves sticker to glass table The adherence on face isopolarity surface.
As above-mentioned nitrogen atom monomer, the monomer with tertiary amino, the monomer with amide groups can be enumerated, has and contains The monomer etc. of azacyclo-, wherein preferably there is nitrogenous heterocyclic monomer.
As with nitrogenous heterocyclic monomer, such as N- (methyl) acryloyl morpholine, N- vinyl -2- pyrroles can be enumerated Alkanone, N- (methyl) acryloyl group pyrrolidones, N- (methyl) acryloylpiperidine, N- (methyl) acryloyl group pyrrolidines, N- (methyl) acryloylaziridine, '-aziridino ethyl (methyl) acrylate, 2- vinylpyridine, 4-vinylpridine, 2- Vinylpyrazine, 1- vinyl imidazole, N- vinyl carbazole, N- vinyl phthalimide etc., wherein from addition to glass Other than the adherence on glass surface isopolarity surface, the cohesiveness of the sticker also improved, the angle for improving resistance to foaming goes out Hair, preferably N- (methyl) acryloyl morpholine, particularly preferred N- acryloyl morpholine.
In addition, as except it is above-mentioned with nitrogenous heterocyclic monomer in addition to nitrogen atom monomer, for example, can also use (methyl) acrylamide, N- methyl (methyl) acrylamide, N- methylol (methyl) acrylamide, N- tert-butyl (methyl) propylene Amide, N, N- dimethyl (methyl) acrylamide, N, N- ethyl (methyl) acrylamide, N, N- dimethylaminopropyl (methyl) Acrylamide, N- isopropyl (methyl) acrylamide, N- phenyl (methyl) acrylamide, dimethylaminopropyl (methyl) propylene Amide, N- caprolactam, (methyl) acrylate etc..Above nitrogen atom monomer can individually make With one kind, also can be used in combination two or more.
When (methyl) acrylate copolymer (A) contains nitrogen atom monomer as the monomeric unit for constituting the polymer, (methyl) acrylate copolymer (A) preferably comprises the nitrogen atom monomer of 1 mass % or more, particularly preferably contains 2 mass % More than, further preferably 5 mass % or more.In addition, (methyl) acrylate copolymer (A) preferably comprise 40 mass % with Under nitrogen atom monomer as constitute the polymer monomeric unit, particularly preferably contain 25 mass % hereinafter, further it is excellent Choosing contains 15 mass % or less.If the sticker that the content of nitrogen atom monomer in above-mentioned range, obtains is to glass table The adhesion force on face isopolarity surface effectively improves.
According to required, (methyl) acrylate copolymer (A) can also contain other monomers as constituting the polymer Monomeric unit.As other monomers, preferably without the monomer with reactive functional group.As the other monomers, such as can Enumerate (methyl) the acrylic acid alkoxyalkyls such as (methyl) methoxyethyl acrylate, (methyl) ethoxyethyl acrylate Ester, vinyl acetate, styrene etc..They may be used alone, can also be used in combination two or more.
The polymeric species of (methyl) acrylate copolymer (A) can be random copolymer, or block copolymer.
The lower limit value of the weight average molecular weight of (methyl) acrylate copolymer (A) is preferably 100,000 or more, particularly preferably 200000 or more, further preferably 300,000 or more.If the lower limit value of the weight average molecular weight of (methyl) acrylate copolymer (A) is More than above-mentioned, then the cohesiveness of sticker can be effectively improved.In addition, (methyl) acrylate copolymer (A's) divides equally again The upper limit value of son amount is preferably 1,000,000 hereinafter, particularly preferably 850,000 hereinafter, further preferably 700,000 or less.(if methyl) The upper limit value of the weight average molecular weight of acrylate copolymer (A) is above-mentioned hereinafter, the segment difference tracing ability of the sticker then obtained becomes It obtains excellent.In addition, the weight average molecular weight of this specification is to be changed using the standard polystyren that gel permeation chromatography (GPC) method measures The value of calculation.
In addition, (methyl) acrylate copolymer (A) can be used alone in adherence composition P, it can also group It closes using two or more.
(1-2) crosslinking agent (B)
(methyl) acrylate copolymer (A) can be crosslinked by crosslinking agent (B) by the heating of adherence composition P, good Form tridimensional network well.The cohesiveness of the sticker obtained as a result, further increases, the segment difference under the conditions of high temperature and humidity Tracing ability becomes more excellent.
As above-mentioned crosslinking agent (B), if with reactive functional groups possessed by (methyl) acrylate copolymer (A) into Row reaction, such as isocyanates crosslinking agent, epoxies crosslinking agent, amine cross-linking agent, melamine class can be enumerated and handed over Join agent, aziridines crosslinking agent, hydrazine crosslinking agent, aldehyde crosslinking agent, oxazoline class crosslinking agent, metal alkoxide class crosslinking agent, gold Belong to chelates crosslinking agent, metallic salt crosslinking agent, ammonium salt class crosslinking agent etc..Herein, as noted previously, as (methyl) acrylic acid Ester copolymer (A) preferably comprises hydroxyl monomer as structures alone unit, therefore, as crosslinking agent (B), it is preferable to use and hydroxyl The excellent isocyanates crosslinking agent of the reactivity of base.One kind in addition, crosslinking agent (B) can be used alone, also can be used in combination two Kind or more.
Isocyanates crosslinking agent at least contains polyisocyanate compounds.As polyisocyanate compounds, such as can Enumerate the fragrant adoption isocyanide such as toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, benzene dimethylene diisocyanate Acid esters, the aliphatic polymeric isocyanates such as hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated diphenyl methane two The biuret body of ester ring types polyisocyanate such as isocyanates etc. and these substances, isocyanuric acid ester body and as with second two The addition product of the reactant of the low molecules active hydrogen-contg compound such as alcohol, propylene glycol, neopentyl glycol, trimethylolpropane, castor oil Deng.Wherein, special from the reactive angle with hydroxyl, the preferably modified aromatic poly-isocyanate of trimethylolpropane Not preferred trimethylolpropane modified toluene diisocyanate.
Relative to 100 mass parts of (methyl) acrylate copolymer (A), crosslinking agent (B's) in adherence composition P contains Amount is preferably 0.01 mass parts or more, more than particularly preferably 0.05 mass parts, more than further preferably 0.1 mass parts.This Outside, which is preferably that 3 below the mass, particularly preferably 2 below the mass, and further preferably 1 below the mass.Pass through Making the content of crosslinking agent (B), the degree of crosslinking becomes suitable, and obtained sticker is in high temperature and humidity condition within the above range Under segment difference tracing ability become more excellent.
(1-3) active energy ray-curable ingredient (C)
By making adherence composition P contain active energy ray-curable ingredient (C), adherence composition P is crosslinked Sticker obtained from (heat cross-linking) becomes the sticker of active energy ray-curable.Speculate that the sticker is glued by attaching The solidification of active energy beam irradiation after object, active energy ray-curable ingredient (C) mutually polymerize, the activity after the polymerization Energy ray-curable ingredient (C) is wound in the cross-linked structure (tridimensional network) of (methyl) acrylate copolymer (A).Tool There are cohesiveness height, the high film intensity of display of the sticker of the higher-dimension structure, therefore the segment difference tracing ability under the conditions of high temperature and humidity Become more excellent.
Active energy ray-curable ingredient (C) as long as solidified by the irradiation of active energy beam and available The ingredient of said effect, then be not particularly limited, and can be any one in monomer, oligomer or polymer, or Their mixture.Wherein, it preferably enumerates excellent in compatibility multifunctional with (methyl) acrylate copolymer (A) etc. Acrylic ester monomer.
As multifunctional acrylates monomer, such as 1,4-butanediol two (methyl) acrylate, 1,6- can be enumerated Hexylene glycol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, polyethylene glycol two (methyl) acrylate, new penta Glycol adipic acid two (methyl) acrylate, hydroxy new pentane acid neopentyl glycol two (methyl) acrylate, two (first of bicyclopentyl Base) acrylate, caprolactone modification dicyclopentenyl two (methyl) acrylate, ethylene-oxide-modified di(2-ethylhexyl)phosphate (methyl) propylene Acid esters, two (acryloyl-oxyethyl) isocyanuric acid esters, allylation cyclohexyl two (methyl) acrylate, Ethoxylated bisphenol The bifunctional types such as bis- [4- (2- acryloyloxyethoxy) phenyl] fluorenes of A diacrylate, 9,9-；Trimethylolpropane tris (first Base) acrylate, dipentaerythritol three (methyl) acrylate, propionic acid modified dipentaerythritol three (methyl) acrylate, season Penta tetrol three (methyl) acrylate, epoxy pronane modification trimethylolpropane tris (methyl) acrylate, three (acryloxies Ethyl) the trifunctionals type such as isocyanuric acid ester, modified three (2- (methyl) acryloyl-oxyethyl) isocyanuric acid esters of 6-caprolactone；Two The tetrafunctionals types such as glycerol four (methyl) acrylate, pentaerythrite four (methyl) acrylate；Propionic acid is modified dipentaerythritol five Five functional-types such as (methyl) acrylate；Dipentaerythritol six (methyl) acrylate, six (first of caprolactone modification dipentaerythritol Base) six functional-types such as acrylate etc..Among above-mentioned, from the segment difference tracing ability under the conditions of the high temperature and humidity of obtained sticker Angle is set out, and preferably two (acryloyl-oxyethyl) isocyanuric acid esters, three (acryloyl-oxyethyl) isocyanuric acid esters, ε-are in oneself The molecules such as ester modified three-(2- (methyl) acryloyl-oxyethyl) isocyanuric acid ester include the multifunctional of isocyanurate structure Acrylic ester monomer, more than more preferable trifunctional and in the molecule containing the polyfunctional acrylic ester of isocyanurate structure Class monomer, modified three-(2- (methyl) acryloyl-oxyethyl) isocyanuric acid esters of particularly preferred 6-caprolactone.They can be independent Using one kind, can also be applied in combination two or more.In addition, from the angle of the compatibility with (methyl) acrylate copolymer (A) Degree sets out, and preferably the molecular weight of multifunctional acrylates monomer is less than 1000.
As active energy ray-curable ingredient (C), it is possible to use the esters of acrylic acid of active energy ray curable Oligomer.As the example of such acrylate quasi-oligomer, polyester acrylates, epoxy acrylate can be enumerated Class, urethaneacrylates class, polyoxyalkylene acrylate esters, polybutadiene acrylic acid esters, silicon acrylate etc..
The weight average molecular weight of above-mentioned acrylate quasi-oligomer is preferably 50,000 hereinafter, preferably 40, and 000 or less.This Outside, which is preferably 1,000 or more, particularly preferably 3,000 or more.These acrylate quasi-oligomers can be single Solely using one kind, can also be applied in combination two or more.
In addition, also can be used to have imported in side chain has (methyl) third as active energy ray-curable ingredient (C) The addition acrylic polymer of the group of enoyl-.Such addition acrylic polymer can pass through following sides Formula obtains: using (methyl) acrylate and intramolecular to have the copolymer of monomer of cross-linking functional group, makes to have and (first Base) one of cross-linking functional group of the compound of group and the copolymer that acryloyl group and cross-linking functional group are reacted Divide reaction.
The weight average molecular weight of above-mentioned addition acrylic polymer is preferably 50,000 or more, and especially particularly preferably 100,000 More than.In addition, the weight average molecular weight is preferably 900,000 hereinafter, particularly preferably 500,000 or less.
As active energy ray-curable ingredient (C), it may be selected and use above-mentioned multifunctional acrylates monomer, third One of olefin(e) acid oligoesters and addition acrylic polymer also can be used in combination two or more, and can also combine makes With active energy ray-curable ingredient than that described above.
Go out from the angle for improving the cohesiveness of obtained sticker, keeping the segment difference tracing ability under the conditions of high temperature and humidity excellent Hair, the active energy ray-curable relative to 100 mass parts of (methyl) acrylate copolymer (A), in adherence composition P The lower limit value of the content of ingredient (C) is preferably 1 mass parts or more, and it is more than more preferably 3 mass parts, particularly preferably 5 mass parts More than.On the other hand, from preventing active energy ray-curable ingredient (C) from mutually separating with (methyl) acrylate copolymer (A) Angle set out, the upper limit value of above-mentioned content is preferably that 50 below the mass, more preferably 20 below the mass, if further examining Consider the better this point of segment difference tracing ability for making initial stage, then particularly preferably 10 below the mass.
(1-4) Photoepolymerizationinitiater initiater (D)
When ultraviolet light to be used to make the sticker cured active energy beam of active energy ray-curable, preferably Adherence composition P further contains Photoepolymerizationinitiater initiater (D).By containing Photoepolymerizationinitiater initiater (D) as described above, can have Effect ground polymerize active energy ray-curable ingredient (C), can additionally reduce polymerizing curable time and active energy beam Exposure.
As such Photoepolymerizationinitiater initiater (D), such as benzoin, benzoin methylether, benzoin ethyl ether, benzene can be enumerated Anisoin isopropyl ether, benzoin n-butylether, benzoin isobutyl ether, acetophenone, dimethylamino acetophenone, 2,2- dimethoxy -2- benzene Benzoylformaldoxime, 2,2- diethoxy -2- phenyl acetophenone, 2- hydroxy-2-methyl -1- phenyl-propane -1- ketone, 1- hydroxy-cyclohexyl Phenyl ketone, 2- methyl-1-[4- (methyl mercapto) phenyl]-2- morpholinyl-propane-1- ketone, 4- (2- hydroxyl-oxethyl) phenyl-2- (hydroxyl -2- propyl) ketone, benzophenone, to phenyl benzophenone, 4,4 '-diethylamino benzophenone, dichloro benzophenone, 2-methylanthraquinone, 2- ethyl hydrazine, 2- tert-butyl anthraquinone, 2- amino anthraquinones, 2- methyl thioxanthones, 2- ethyl thioxanthones, 2- chlorine Thioxanthones, 2,4- dimethyl thioxanthone, 2,4- diethyl thioxanthone, benzyl dimethyl ketal, acetophenone dimethyl ketal, to two Methylaminobenzoic acid ester, oligomeric [2- hydroxy-2-methyl -1 [4- (1- methyl ethylene) phenyl] acetone], 2,4,6- trimethyl Benzoyl-diphenyl-phosphineoxide etc..Wherein, due to also adequately being solidified across the resin plate containing ultraviolet absorbing agent Reaction, therefore the Photoepolymerizationinitiater initiater of phosphinoxides is more preferably used, such as particularly preferably use 2,4,6- trimethylbenzoyls Base-diphenyl-phosphineoxide.They may be used alone, can also be used in combination two or more.
Relative to 100 mass parts of active energy ray-curable ingredient (C), the photopolymerization in adherence composition P causes The lower limit value of the content of agent (D) is preferably 0.1 mass parts or more, more than particularly preferably 1 mass parts.In addition, upper limit value is preferred Below the mass for 30, particularly preferably 15 below the mass.
(1-5) various additives
According to required, the various additives for being usually used in acrylic compounds sticker, such as silicon can be added in adherence composition P Alkane coupling agent, ultraviolet absorbing agent, antistatic agent, tackifier, antioxidant, light stabilizer, softening agent, filler, refractive index Regulator etc..In addition, aftermentioned polymer solvent or retarder thinner are not included in the additive for constituting adherence composition P.
Herein, if adherence composition P contains silane coupling agent, obtained sticker and glass component or plastic plate Adherence is improved.
As silane coupling agent, preferably intramolecular has at least one alkoxysilyl, and with (methyl) acrylate The compatibility of copolymer (A) is good, and the organo-silicon compound with translucency.
As the silane coupling agent, such as vinyltrimethoxysilane, vinyltriethoxysilane, first can be enumerated The silicon compound containing polymerism unsaturated group such as base acryloyloxypropyltrimethoxysilane；3- glycidol ether oxygroup Propyl trimethoxy silicane, 2- (3,4- epoxycyclohexyl) ethyl trimethoxy silane etc. have the silicon compound of epoxy construction； 3-mercaptopropyi trimethoxy silane, 3- Mercaptopropyltriethoxysilane, 3- mercaptopropyi dimethoxymethylsilane etc. contain The silicon compound of sulfydryl；3- TSL 8330, N- (2- amino-ethyl) -3- TSL 8330, The amino-containing silicon compounds such as N- (2- amino-ethyl) -3- aminopropylmethyldimethoxysilane；3- r-chloropropyl trimethoxyl Silane；3- isocyano group propyl-triethoxysilicane；Or at least one of these silane coupling agents and methyltriethoxysilane, The condensation product of the silicon compound containing alkyl such as ethyl triethoxysilane, methyltrimethoxysilane, ethyl trimethoxy silane Deng.Wherein, from the angle for the adherence that can effectively improve adhering agent layer 12 and glass component or plastic plate, preferably 3- Glycidyl ether oxypropyltrimethoxysilane.They can be used alone, and can also be applied in combination two or more.
When adherence composition P contains silane coupling agent, relative to 100 mass of (methyl) acrylate copolymer (A) Part, content is preferably 0.01 mass parts or more, and it is more than particularly preferably 0.05 mass parts, further preferably 0.1 mass parts More than.In addition, the content is preferably that 2 below the mass, particularly preferably 1 below the mass, further preferably 0.5 mass parts Below.
The preparation of (1-6) adherence composition
Adherence composition P can be prepared by following manner: preparation (methyl) acrylate copolymer (A), according to required, (methyl) acrylate copolymer (A), crosslinking agent (B), the active energy ray-curable ingredient (C), photopolymerization being mixed to get Initiator (D) and additive.
(methyl) acrylate copolymer (A) can will constitute the list of polymer by utilizing common radical polymerization The mixture of body polymerize to prepare.The polymerization of (methyl) acrylate copolymer (A) preferably according to it is required using polymerization initiator, It is carried out by solution polymerization process.As polymer solvent, for example, can enumerate ethyl acetate, n-butyl acetate, Sucrose Acetate base, Toluene, acetone, hexane, methyl ethyl ketone etc. also can be used simultaneously two or more.
As polymerization initiator, azo compound, organic peroxide etc. can be enumerated, also can be used simultaneously two kinds with On.As azo compound, such as 2,2 '-azodiisobutyronitriles, 2,2 '-azos two (2- methylbutyronitrile), 1 can be enumerated, 1 '-azo two (hexamethylene 1- formonitrile HCN), 2,2 '-azos two (2,4- methyl pentane nitrile), 2,2 '-azo, two (2,4- dimethyl -4- Methoxyl-valeronitrile), it is dimethyl 2,2 '-azo two (2 Methylpropionic acid ester), 4,4 '-azos two (4- cyano valeric acid), 2,2 '-even Nitrogen two (2- hydroxymethyl propionitrile), 2,2 '-azos two [2- (2- imidazoline -2- base) propane] etc..
As organic peroxide, such as benzoyl peroxide, peroxidized t-butyl perbenzoate, hydrogen peroxide can be enumerated Isopropylbenzene, di-isopropyl peroxydicarbonate, peroxy dicarbonate di-n-propyl ester, dicetyl peroxydicarbonate two (2- ethoxyethyl group) Ester, new peroxide tert-butyl caprate, tert-Butyl peroxypivalate, peroxidating (3,5,5- trimethyl acetyl), peroxidating dipropyl Acyl, diacetyl peroxide etc..
In addition, in above-mentioned polymerization process, by blending the chain-transferring agents such as 2 mercapto ethanol, adjustable obtained polymer Weight average molecular weight.
After obtaining (methyl) acrylate copolymer (A), by according to as needed to (methyl) acrylate copolymer (A) Solution in add crosslinking agent (B), active energy ray-curable ingredient (C), Photoepolymerizationinitiater initiater (D), additive and dilution Solvent, and it is sufficiently carried out mixing, it can obtain by the diluted adherence composition P of solvent (coating solution).In addition, for upper For stating any one in each ingredient, when using the ingredient of solid-like or with not diluted state and other compositions When being precipitated in the case where being mixed, the ingredient individually can be dissolved or be diluted in retarder thinner in advance, then with other at Divide mixing.
As above-mentioned retarder thinner, such as the aliphatic hydrocarbons such as hexane, heptane, hexamethylene can be used；The virtues such as toluene, dimethylbenzene Fragrant race's hydrocarbon；The halogenated hydrocarbons such as methylene chloride, vinyl chloride；The alcohol such as methanol, ethyl alcohol, propyl alcohol, butanol, 1- methoxy-2-propanol；Acetone, The ketone such as methyl ethyl ketone, 2 pentanone, isophorone, cyclohexanone；The esters such as ethyl acetate, butyl acetate；The molten fibre such as ethyl cellosolve Agent class solvent etc..
As long as the concentration and viscosity of the coating solution prepared through the above way are in the range of can be coated with, without spy It does not limit, can be carried out according to situation suitably selected.For example, so that the concentration of adherence composition P is as 10~60 mass %'s Mode is diluted.In addition, the not necessarily condition such as retarder thinner is added, if adherence composition P when obtaining coating solution For the viscosity etc. that can be coated with, then retarder thinner can not also be added.At this point, adherence composition P is that (methyl) acrylate is total Coating solution of the polymer solvent of polymers (A) directly as retarder thinner.
(2) first films
The first film 11 in present embodiment with a thickness of 100 μm or more.By make the first film 11 with a thickness of 100 μm with On, as described above, the adhesive sheet coiling body 1 of the application embodiment can unreel the adhesive sheet 10 with excellent appearance.From this Angle is set out, and the thickness of the first film 11 is preferably 110 μm or more, and particularly preferably 120 μm or more.On the other hand, although to The upper limit of the thickness of one film 11 is not particularly limited, but from the excellent angle of operability of adhesive sheet 10, be 300 μm with Under, preferably 250 μm hereinafter, particularly preferably 200 μm hereinafter, further preferably 160 μm or less.
Furthermore it is preferred that the thickness of the first film 11 is thicker than the thickness of the second film 13.It is unreeled as a result, by adhesive sheet coiling body 1 Adhesive sheet 10 in, the generation of fold can be effectively suppressed.
First film 11 can be the desired substrate that adherend is attached at via adhering agent layer 12, or hereafter The stripping film.As long as the first film 11 has above-mentioned thickness, material is not particularly limited.First film 11 can by with The material of resinae is that the resin based sheet of principal component is constituted, and can also be made of the material of stationery.
The ingredient of resin as resin based sheet can enumerate polyethylene, polypropylene, polybutene, polybutadiene, poly- first The polyolefin such as base amylene, ethylene-norbornene copolymer, norbornene resin, polyethylene terephthalate, poly- naphthalene diformazan The polyester such as sour glycol ester, polybutylene terephthalate (PBT), polyvinyl chloride, vinyl chloride copolymer, polyimides, polyetherimide The resins such as amine, polycarbonate, polyphenylene sulfide, liquid crystal polymer.These resin sheets can be the piece being made of single layer, or The piece that multiple layers of the same race or not of the same race are laminated.Among above-mentioned, preferred polyethylene terephthalate film.
Concrete example when being made of as the first film 11 material of stationery, can enumerate glassine paper, coated paper, fine paper etc. Paper base material, and the laminated paper made of the thermoplastic resins such as laminated polyethylene on above-mentioned paper base material.
First film 11 be preferably to the single side of the piece being made of the material of above-mentioned resin system piece or paper system (especially with it is viscous Oxidant layer 12 contact face) implement lift-off processing made of stripping film.As the remover for being used for lift-off processing, can enumerate Alcohol acids, silicone, fluorine class, unsaturated polyester (UP) class, polyolefins, wax class remover.
Young's modulus of first film 11 at 23 DEG C is preferably 0.01GPa or more, particularly preferably 0.1GPa or more, into one Step is preferably 1GPa or more.In addition, the Young's modulus is preferably 20GPa hereinafter, particularly preferably 10GPa is hereinafter, further excellent It is selected as 5GPa or less.By making Young's modulus 0.01GPa or more of first film 11 at 23 DEG C, the first film 11 has defined Intensity can effectively inhibit the generation of the fold of adhesive sheet 10.In addition, by making Young's modulus of first film 11 at 23 DEG C 20GPa is easy to wind adhesive sheet 10 with excessive rigidity hereinafter, can inhibit the first film 11, and the operability of adhesive sheet 10 becomes It obtains more excellent.In addition, above-mentioned Young's modulus is the value measured according to JIS K7161:2014, measuring method it is detailed Recorded in situation test example as be described hereinafter.
(3) second films
Second film 13 can be the desired substrate that adherend is attached at via adhering agent layer 12, or as follows Stripping film described in text.The material for constituting the second film 13 can be identical as the first film 11.In addition, when the second film 13 is stripping film, It can be composition identical with the first film 11 as stripping film.
The thickness of second film 13 is preferably 2 μm or more, particularly preferably 5 μm or more, further preferably 25 μm or more.This Outside, the thickness of the second film 13 be preferably 200 μm hereinafter, more preferably 150 μm hereinafter, particularly preferably 90 μm hereinafter, further Preferably 60 μm or less.By make the second film 13 with a thickness of these ranges, be content with very little as described above, the first film 11 thickness Spend the relationship thicker than the thickness of the second film 12.
Young's modulus of second film 13 at 23 DEG C is preferably 0.01GPa or more, particularly preferably 0.05GPa or more, into One step is preferably 0.1GPa or more.In addition, the Young's modulus is preferably 10GPa hereinafter, particularly preferably 8GPa is hereinafter, further Preferably 5GPa or less.By making Young's modulus 0.01GPa or more of second film 13 at 23 DEG C, the second film 13 has regulation Intensity, such as when the second film 13 be stripping film when, be easy to peel when which is removed from adhering agent layer 12.This Outside, by making Young's modulus 10GPa of second film 13 at 23 DEG C that there is excessive rigidity hereinafter, can inhibit the second film 13, The fold generated by winding can be effectively inhibited.In addition, above-mentioned Young's modulus is measured according to JIS K7161:2014 The value arrived, recorded in the details of measuring method test example as be described hereinafter.
(4) core material
The core material 20 of present embodiment has cylindric or cylindric shape.The diameter of the core material 20 of present embodiment is 9cm or more.By making the diameter 9cm or more of core material 20, as described above, the adhesive sheet coiling body 1 of the application embodiment can Unreel the adhesive sheet 10 with excellent appearance.From the angle, the diameter of core material 20 is preferably 10cm or more, particularly preferably For 15cm or more.On the other hand, viscous from that can further increase although the upper limit of the diameter of core material 20 is not particularly limited The angle of the volume number of piece 10 set out, be 100cm hereinafter, preferably 50cm is hereinafter, particularly preferably 40cm or less.
In addition, although the length (length of rotary axis direction when winding adhesive sheet 10) of the core material 20 of present embodiment does not have Have a special limitation, but preferably with the of same size of adhesive sheet 10 or bigger than the width.
As long as the material for constituting core material 20 has the sufficient intensity for winding adhesive sheet 10, it is not particularly limited, It is able to use known material.As the example of the material, such as metal, resin, timber can be enumerated etc..These materials In, preferred resin, particularly preferred polypropylene.
Young's modulus of the core material 20 at 23 DEG C is preferably 0.01GPa or more, particularly preferably 0.1GPa or more, further Preferably 0.3GPa or more.In addition, the Young's modulus is preferably 500GPa hereinafter, more preferably 100GPa is hereinafter, particularly preferably For 10GPa hereinafter, further preferably 1GPa or less.By making Young's modulus above range of the core material 20 at 23 DEG C, i.e., Make that the shape of core material 20 can also be well maintained when applying core material 20 winding pressure of adhesive sheet 10.In addition, above-mentioned core Young's modulus of the material 20 at 23 DEG C is the value measured according to JIS Z2241:2011.
(5) other
In the adhesive sheet 10 of present embodiment, exist at least part of the width direction of adhering agent layer 12 than the width Thin 2 μm of maximum gauge or more of low film thickness portion of the adhering agent layer 12 in direction.There are when the low film thickness portion in adhering agent layer 12, The total of width can be 5% or more of the overall width of adhering agent layer 12, it is particularly possible to be 10% or more.Present inventor It was found that the adhesive sheet 10 unreeled from adhesive sheet coiling body 1 is easy tool when adhering agent layer 12 has low film thickness portion with such ratio There is fold.However, adhesive sheet coiling body 1 according to the present embodiment, even if also can in the presence of low film thickness portion is with above-mentioned ratio Enough effectively inhibit the generation of above-mentioned fold.In addition, the upper limit of the ratio for low film thickness portion, from the thickness of adhering agent layer 12 Uniformity be easy to become excellent angle and set out, total preferably overall width of adhering agent layer 12 of the width in low film thickness portion 50% hereinafter, particularly preferably 30% or less.
Additionally, there are when above-mentioned low film thickness portion, the length in the low film thickness portion for unreeling direction of adhesive sheet coiling body 1 can be 1m or more, it is particularly possible to be 10m or more.The inventors of the present application found that adhesive sheet coiling body 1 to unreel direction presence longer Low film thickness portion, be more easy to produce above-mentioned fold.However, adhesive sheet coiling body 1 according to the present embodiment, even if in this way In the case where, it can also effectively inhibit the generation of the fold.In addition, for the low film for unreeling direction of adhesive sheet coiling body 1 The upper limit of the length in thick portion, although the shorter the angle from the generation for inhibiting above-mentioned fold the better, even if if adhering There are in the case where low film thickness portion on the total length of piece 10, adhesive sheet coiling body 1 according to the present embodiment also can be effectively Inhibit the generation of the fold.
For the adhesive sheet coiling body 1 of present embodiment, the volume number of adhesive sheet 10 can be 3 circles or more, it is particularly possible to be It is more than 10 circles.The inventors of the present application found that when the volume number is that 3 circles are above, the adhesive sheet 10 that is unreeled from adhesive sheet coiling body 1 It is easy that there is fold.However, adhesive sheet coiling body 1 according to the present embodiment can also have even if volume number is that 3 circles are above Effect ground inhibits the generation of above-mentioned fold.In addition, the upper limit of above-mentioned volume number is not particularly limited, it can be from the adhesion of needs The angle of the operability of the length and amount and adhesive sheet coiling body 1 of piece 10 is set out, and is appropriately configured.
2. the physical property of adhesive sheet
Although the adhesive sheet 10 of present embodiment can carry out the adhesion strength of soda-lime glass according to the purposes of adhesive sheet 10 It suitably sets, but is for example preferably 1N/25mm or more, particularly preferably 15N/25mm or more, further preferably 40N/25mm More than.In addition, the adhesion strength is preferably 100N/25mm hereinafter, particularly preferably 80N/25mm is hereinafter, further preferably 60N/ 25mm or less.By making the adhesion strength above range, adhesive sheet 10 can play good adherence to adherend.In addition, i.e. When adhering agent layer 12 being made to be placed in high temperature and humidity condition to be attached at the state of adherend, also it is easy to inhibit near segment difference well Bubble, the generation that floats, peel off etc..In addition, institute in the details of the test method of above-mentioned adhesion strength test example as be described hereinafter It records.
3. the manufacturing method of adhesive sheet coiling body
The manufacturing method of adhesive sheet coiling body 1 as present embodiment, as long as including with by the first film of adhesive sheet 10 The process that 11 sides are wound in core material 20 as the mode of inside, is not particularly limited, can adopt by a conventionally known method.
Firstly, the manufacturing method of the adhesive sheet 10 as present embodiment, first if enumerating an example of manufacturing method First, the single side by the coating solution coating of above-mentioned adherence composition P in the first film 11 (is coated on when having carried out lift-off processing The progress face of lift-off processing).Heat treatment is carried out to make adherence composition P heat cross-linking to obtained film, is formed Adhering agent layer 12.Then, by the way that the single side of the second film 13 is laminated on the face with 11 opposite side of the first film of the adhering agent layer 12 (having carried out that the progress face of lift-off processing is laminated when lift-off processing), is capable of forming adhesive sheet 10.Also can according to need into The curing of row adhering agent layer 12.In addition, the first film 11 can be exchanged with the second film 13 in the manufacturing method.
It is difficult to the primary coating as described above by coating solution in addition, working as and is formed viscous with desired thickness Oxidant layer 12 when, adhering agent layer 12 can also be formed as follows.That is, manufacture is made of process on piece forms adhering agent layer Laminated body, by the stacking in the face of the adhering agent layer side in the laminated body and the first film 11 and adhering agent layer made as described above The face paste of adhering agent layer side in body is closed, and the adhering agent layer 12 with desired thickness thus can also be formed.At this point, passing through The exposed surface of adhering agent layer 12 that second film 13 is fitted in removing above-mentioned operation piece and is exposed, can obtain adhesive sheet 10.Or Person is produced on the single side (in the progress face of lift-off processing when having carried out lift-off processing) of the second film 13 and forms adhering agent layer Made of laminated body, by the face of the adhering agent layer side in the laminated body and the first film 11 and adhering agent layer that as described above make Laminated body in adhering agent layer side face paste close, thus can form the adhering agent layer 12 with desired thickness, while Adhesive sheet 10 made of the first film 11, adhering agent layer 12 and the second film 13 can be obtained stacking gradually.
In the laminated body and the second film 13, the first film 11 and second that the first film 11 and adhering agent layer as described above is laminated The stacking of the laminated body and the second film 13 and adhering agent layer of the laminated body or the first film 11 and adhering agent layer of film 13 and adhering agent layer When body, tension can be applied at least one of the first film 11 and the second film 13.
When applying tension to the first film 11, which is preferably 10N/m or more, particularly preferably 50N/m or more, further Preferably 100N/m or more.In addition, the tension is preferably 1000N/m hereinafter, particularly preferably 800N/m is hereinafter, further preferably For 500N/m or less.
In addition, the tension is preferably 1N/m or more, particularly preferably 10N/m or more when applying tension to the second film 13, into One step is preferably 50N/m or more.In addition, the tension is preferably 800N/m hereinafter, particularly preferably 600N/m is hereinafter, further excellent It is selected as 400N/m or less.
When applying tension to the first film 11 and the second film 13, when preferably winding adhesive sheet 10, to the first film as inside 11 apply bigger tension.As a result, in releasing the adhesive sheet 10 after tension, it is easy to produce using 11 side of the first film as the curved of inside Song, as a result, it is possible to more effectively inhibit the generation of the fold from the adhesive sheet 10 that adhesive sheet coiling body 1 unreels.From in this way Angle set out, to the first film 11 apply tension relative to the ratio for the tension that the second film 13 is applied be preferably 1.0 times with On, particularly preferably 1.2 times or more, further preferably 1.8 times or more.The upper limit of aforementioned proportion is not particularly limited, and is 5 times Left and right below.
As the method for the coating solution for being coated with above-mentioned adherence composition P, such as it can use stick coating method, blade coating Method (knife coating method), rolling method, scraper coating method (blade coating method), die coating methods (die coating method), gravure coating method etc..
By the way that the adhesive sheet manufactured as described above 10 is wound in core material 20, adhesive sheet coiling body 1 can be obtained.The winding In, adhesive sheet 10 is wound in core material 20 in such a way that the face of 11 side of the first film of adhesive sheet 10 becomes inside.Alternatively, it is also possible to even The continuous manufacture for carrying out adhesive sheet 10 and the winding of manufactured adhesive sheet 10.I.e., it is possible to which the upstream in flow direction carries out first The stacking of film 11, adhering agent layer 12 and the second film 13, while adhesion obtained from end stacking is carried out in the downstream of flow direction The winding of piece 10.
When carrying out above-mentioned winding, tension can also be applied to adhesive sheet 10.The tension is preferably 10N/m or more, special It You Xuanwei not 50N/m or more, further preferably 100N/m or more.In addition, the tension is preferably 1000N/m hereinafter, especially excellent 800N/m is selected as hereinafter, further preferably 500N/m or less.By on one side apply above-mentioned range tension, while wind it is viscous Piece 10, easily fabricated without the relaxation and equably adhesive sheet coiling body 1 that is wound.
4. the application method of adhesive sheet coiling body
The adhesive sheet 10 unreeled can be used for desired purposes by the adhesive sheet coiling body 1 of present embodiment.This implementation In the adhesive sheet coiling body 1 of mode, adhering agent layer 12 has 100 μm or more of thicker thickness.Therefore, present embodiment is viscous Piece 10 it is preferable to use in the purposes of the adhering agent layer 12 using such thicker thickness.
The example of the preferred purposes of adhesive sheet 10 as present embodiment can enumerate aobvious using the manufacture of adhesive sheet 10 The case where showing body.Such as the display body has the first display body at least on the face for the side being stuck with segment difference and constitutes structure Part, the second display body member of formation (other display body component parts) and the adhesion positioned at the present embodiment between them Oxidant layer 12 solidify made of layer and constitute.Herein, above-mentioned segment difference is, for example, to be set to the above-mentioned face of the first display body component parts , by overlooking when the segment difference that generates of printing layer in the shape of a frame.
When manufacturing above-mentioned display body, firstly, removing the first film 11 and the second film 13 from the adhesive sheet 10 of present embodiment In any one, by the bonding plane of the adhering agent layer 12 of exposing be attached at the first display body component parts there are segment difference Face.At this point, adhering agent layer 12 is attached in a manner of following the segment difference well.Then, by the first film 11 and the second film 13 In remaining one removed from adhering agent layer 12, and make expose adhering agent layer 12 bonding plane and the second display body composition Component fitting.Also, work as adhering agent layer 12 to be made of the acrylic compounds sticker of active energy ray-curable as described above, And when not yet carrying out active energy ray-curable, in the first display body member of formation and the second display body member of formation extremely Few a kind of pair of adhering agent layer 12 irradiates active energy beam, so that the adhering agent layer 12 be made to solidify.By the above-mentioned means, can obtain To display body.
First display body member of formation can be gone back for plastic plate, the glass plate of printing layer etc. in the shape of a frame when overlooking It can be the protection panels that are made of the laminated body etc. comprising these glass plates or plastic plate etc..Second display body member of formation can Think to include the optical component that be attached at the first display body member of formation, display module, as the one of display module The laminated body of partial optical component or display module.
The active energy beam for being irradiated in adhering agent layer 12 is the work in electromagnetic wave or charged particle beam with the quanta of energy Property energy-ray, specifically, ultraviolet light or electron beam etc. can be enumerated.It is particularly preferably easy to operate in active energy beam Ultraviolet light.
Above-mentioned ultraviolet irradiation can be carried out using high-pressure sodium lamp, fusion H lamp (fusion H lamp), xenon lamp etc., purple The exposure of outside line is preferably 50mW/cm with illumination photometer2Above, 1000mW/cm2Below.The light quantity of ultraviolet light is preferably 50mJ/ cm2More than, more preferably 80mJ/cm2More than, particularly preferably 200mJ/cm2More than.In addition, the light quantity of ultraviolet light is preferably 10000mJ/cm2Hereinafter, more preferably 5000mJ/cm2Hereinafter, particularly preferably 2000mJ/cm2Below.On the other hand, electronics The irradiation of beam can be carried out by electron-beam accelerator etc., the exposure of electron beam be preferably 10krad or more, 1000krad with Under.
As described above, the adhering agent layer 12 being made of the acrylic compounds sticker of active energy ray-curable is attached at After the first display body member of formation with segment difference, when irradiating active energy beam and solidifying the adhering agent layer 12, sticker Layer 12 is the state for following segment difference well, and the cohesiveness of adhering agent layer 12 is improved.Even if working as the adhering agent layer 12 as a result, When being placed in high temperature and humidity condition to be attached at the state of adherend, can also inhibit well the bubble near segment difference, float, The generation of peeling etc..
The implementation described above be for easy understanding the present invention and records, be not intended to limit of the invention And it records.Therefore, each important document disclosed in above embodiment is also covered by all designs belonged in technical scope of the invention Change or equipollent.
Embodiment
Hereinafter, the present invention is further concretely demonstrated, but the scope of the present invention does not limit by embodiment etc. In these embodiments etc..
[embodiment 1]
The preparation of (1. methyl) acrylate copolymer (A)
By solution polymerization process, make 60 mass parts of 2-EHA, 4- acryloyl morpholine (N- acryloyl morpholine) 10 mass parts, 10 mass parts of isobornyl acrylate and the copolymerization of 15 mass parts of acrylic acid 2- hydroxy methacrylate, prepare (methyl) propylene Acid ester copolymer (A).The molecular weight of (methyl) acrylate copolymer (A) is somebody's turn to do using the measurement of aftermentioned method, as a result, weight is equal Molecular weight (Mw) is 600,000.
Here, above-mentioned weight average molecular weight (Mw) is measured under the following conditions using gel permeation chromatography (GPC) The weight average molecular weight of the polystyrene conversion of (GPC measurement).
< determination condition >
GPC measurement device: TOSOH CORPORATION manufacture, HLC-8020
GPC chromatographic column (passes through) according to following sequence: TOSOH CORPORATION manufacture
TSK guard column HXL-H
TSK gel GMHXL(×2)
TSK gel G2000HXL
Measure solvent: tetrahydrofuran
Measuring temperature: 40 DEG C
2. the preparation of adherence composition
By 100 mass parts of (methyl) acrylate copolymer (A) obtained in above-mentioned operation 1, (solid divides scaled value；Below It is identical), penetrate as 0.15 mass parts of trimethylolpropane modified toluene diisocyanate of crosslinking agent (B), as active-energy The 6-caprolactone of line curability composition (C) is modified three-(2- acryloyl-oxyethyl) isocyanuric acid esters, 5.0 mass parts, as light The 2,4,6- trimethylbenzoy-dipheny of polymerization initiator (D) -0.5 mass parts of phosphine oxide, the 3- as silane coupling agent 0.5 mass parts of glycidyl ether oxypropyltrimethoxysilane are mixed, and are sufficiently stirred, and methyl ethyl ketone is utilized It is diluted, thus obtains the coating solution of adherence composition.
3. the manufacture of adhesive sheet
Using knife type coater, by the coating solution coating of adherence composition obtained in above-mentioned operation 2 as One film has carried out lift-off processing using single side of the silicone remover to the polyethylene terephthalate film of strip On the lift-off processing face of stripping film (thickness: 125 μm).Then, it is heated by the way that obtained film to be carried out to 3 minutes at 110 DEG C Processing forms the adhering agent layer with a thickness of 100 μm to make it dry.It is obtained as a result, by the first film/adhering agent layer (100 μm) Composition composition first layer stack.
In addition, the coating solution coating of adherence composition obtained in above-mentioned operation 2 is being made using knife type coater For having been carried out at removing using single side of the silicone remover to the polyethylene terephthalate film of strip for process piece On the lift-off processing face of the stripping film (LINTEC CORPORATION manufacture, name of product " SP-PET752150 ") of reason.Then, By the way that obtained film to be carried out to heat treatment in 3 minutes at 110 DEG C to make it dry, the adhesion with a thickness of 100 μm is formed Oxidant layer.The second laminated body being made of the composition of process piece/adhering agent layer (100 μm) is obtained as a result,.
Then, it is obtained by the face of the adhering agent layer side in the first layer stack obtained as described above and as described above It pastes in the face of adhering agent layer side in second laminated body.It is obtained as a result, by the first film/adhering agent layer (200 μm)/process piece structure In groups at third laminated body.
Then, to the dew of adhering agent layer removing process piece from the third laminated body obtained as described above and exposing Appear, be laminated as the second film using silicone remover to the single side of the polyethylene terephthalate film of strip into Gone lift-off processing stripping film (thickness: 75 μm) lift-off processing face.When carrying out the stacking, the first film is applied along its length The tension for adding 300N/m applies the tension of 150N/m to the second film along its length.It is obtained as a result, by the first film/adhering agent layer The adhesive sheet of the composition composition of (200 μm)/second film.
4. the manufacture of adhesive sheet coiling body
Adhesive sheet obtained in above-mentioned operation 3 is wound in the cylindric core material of the diameter (outer diameter) with 179.4mm (polypropylene system, Young's modulus: 0.7GPa).At this point, being wound in a manner of making the first film side of adhesive sheet become inside, together When be wound when applying the tension of 200N/m along its length to adhesive sheet.In addition, the length of the adhesive sheet of winding is 300m.Adhesive sheet coiling body is obtained as a result,.
[embodiment 2]
In addition to will be shelled using single side of the silicone remover to the polyethylene terephthalate film of strip Stripping film (thickness: 50 μm) from processing is used as other than the second film, manufactures adhesive sheet winding in the same manner as example 1 Body.
[embodiment 3]
In addition to will be shelled using single side of the silicone remover to the polyethylene terephthalate film of strip Stripping film (thickness: 188 μm) from processing is used as other than the first film, manufactures adhesive sheet winding in the same manner as example 1 Body.
[embodiment 4]
Process piece is removed from third laminated body and expose viscous in addition to being laminated on the lift-off processing surface layer for making the second film The exposed surface of oxidant layer when, tension that the first film and the second film are applied be changed to other than 200N/m respectively, with embodiment 1 Identical mode manufactures adhesive sheet coiling body.
[embodiment 5]
In addition to use the diameter (outer diameter) with 281.0mm cylindric core material (polypropylene system, Young's modulus: Other than 0.7GPa), adhesive sheet coiling body is manufactured in the same manner as example 1.
[embodiment 6]
By solution polymerization process, make 55 mass parts of 2-EHA, 4- acryloyl morpholine (N- acryloyl morpholine) 10 mass parts, 10 mass parts of isobornyl acrylate and the copolymerization of 25 mass parts of acrylic acid 2- hydroxy methacrylate, prepare (methyl) propylene Acid ester copolymer (A).Benefit measures the molecular weight for being somebody's turn to do (methyl) acrylate copolymer (A) with the aforedescribed process, as a result, weight is equal Molecular weight (Mw) is 600,000.In addition to use (methyl) acrylate copolymer (A) preparation adherence composition coating solution, And formed other than adhering agent layer using the coating solution, adhesive sheet coiling body is manufactured in the same manner as example 1.
[comparative example 1]
In addition to will be shelled using single side of the silicone remover to the polyethylene terephthalate film of strip Stripping film (thickness: 75 μm) from processing is used as other than the first film, manufactures adhesive sheet winding in the same manner as example 1 Body.
[comparative example 2]
In addition to will be shelled using single side of the silicone remover to the polyethylene terephthalate film of strip It is used as the first film from the stripping film of processing (thickness: 38 μm) and silicone remover will be utilized to the poly- terephthaldehyde of strip The single side of sour glycol ester film carried out lift-off processing stripping film (thickness: 38 μm) be used as the second film other than, with embodiment 1 Identical mode manufactures adhesive sheet coiling body.
[comparative example 3]
In addition to when adhesive sheet is wound in core material and obtains adhesive sheet coiling body, so that the second film side of adhesive sheet becomes Other than the mode of inside is wound, adhesive sheet coiling body is manufactured in the same manner as example 1.
[comparative example 4]
In addition to use the cylindric core material (ABS system, Young's modulus: 2.0GPa) of the diameter (outer diameter) with 86.7mm with Outside, adhesive sheet coiling body is manufactured in the same manner as example 1.
[test example 1] (measurement of the Young's modulus of the first film and the second film)
For the first film used in Examples and Comparative Examples and the second film, universal tensile testing machine (ORIENTEC is used Co., LTD is manufactured, name of product " TENSILON RTA-T-2M "), according to JIS K7161:2014, in 23 DEG C, the ring of 50%RH Under border, Young's modulus is measured with the condition that tensile speed is 200mm/ minutes.Show the result in table 1.
[test example 2] (measurement of the storage modulus of adhering agent layer)
The adhering agent layer made in multilayer laminated Examples and Comparative Examples makes the laminated body with a thickness of 3mm.By acquired The laminated body of adhering agent layer to be punched into the cylindrical body that diameter is 8mm (be highly 3mm), as sample.
Determination of viscoelasticity device (Geometric Limited is used according to JIS K7244-6:1999 for above-mentioned sample Manufacture, name of product " DYNAMIC ANALYZER "), using torsional shear method (ね じ り せ ん break method), under the following conditions It measures storage modulus (G ') (MPa).Show the result in table 1.
Measure frequency: 1Hz
Measuring temperature: 23 DEG C
[test example 3] (measurement of adhesion strength)
The second film is removed on the adhesive sheet obtained in the Examples and Comparative Examples, the adhering agent layer of exposing, which is fitted in, to be had Polyethylene terephthalate (PET) film (TOYOBO CO., LTD. manufacture, the name of product " PET of easy adhesive layer A4300 ", thickness: 100 μm) easy adhesive layer, obtain the first film/adhering agent layer/PET film laminated body.The laminated body that will be obtained Cut into 25mm wide, 100mm long.
In the environment of 23 DEG C, 50%RH, the first film is removed from above-mentioned laminated body, and the adhering agent layer of exposing is attached at Soda-lime glass (NIPPON SHEET GLASS CO., LTD. manufacture), using autoclave (KURIHARA SEISAKUSHO Co., Ltd. manufacture), it is pressurizeed 20 minutes with 0.5MPa, 50 DEG C.Then, ultraviolet light is irradiated under conditions of following across PET film, will glue Oxidant layer solidification.
< ultraviolet light irradiation condition >
Use high-pressure sodium lamp
Illumination 200mW/cm2, light quantity 1000mJ/cm2
UV illumination quantometer uses EYE GRAPHICSCO., " UVPF-A1 " of LTD. manufacture
Then, after being placed 24 hours under conditions of 23 DEG C, 50%RH, using cupping machine (ORIENTEC Co., Ltd., name of product " TENSILON "), with peeling rate 300mm/min, the condition of peel angle 180 degree, measure adhesion strength (mN/25mm).The condition not being recorded in herein is measured according to JIS Z0237:2009.Show the result in table 1.
[test example 4] (measurement in low film thickness portion)
For the adhesive sheet made in Examples and Comparative Examples, constant pressure thickness measurement equipment (TECLOCK is used CORPORATION manufacture, name of product " PG-20J ") measurement: distance becomes the adhesive sheet of length direction (piece unreels direction) The thickness of the adhering agent layer of the position of the end 10m of core material side.At this point, the width direction in adhering agent layer is on the whole surveyed It is fixed.Then, for the low film thickness portion of the thickness with 2 μm thinner than the maximum gauge measured or more, the width of adhering agent layer is measured Spend the width (mm) in direction.Show the result in table 1.In addition, differentiation describes the width direction for being present in adhering agent layer in table 1 Central portion low film thickness portion width be located at adhering agent layer width direction end low film thickness portion width.In addition, For the width in the low film thickness portion of the end for the width direction for being located at adhering agent layer, the width direction positioned at adhering agent layer is described One end low film thickness portion width and the width in the low film thickness portion of the another side for the width direction for being located at adhering agent layer Average value.
In addition, having calculated total overall width relative to adhering agent layer of the width in the low film thickness portion measured as described above The ratio (%) of (1080mm).Show the result in table 1.
Further, all adhesive sheets are unreeled from adhesive sheet coiling body, measurement adhesive sheet coiling body unreels on direction , there are the length (m) in above-mentioned low film thickness portion.Show the result in table 1.In addition, adhesive sheet coiling body unreels on direction The overall length of adhesive sheet is 300m.
[test example 5] (evaluation of segment difference tracing ability)
In a manner of making 10 μm of coating thickness, by ultraviolet curable ink (TEIKOKU PRINTING INKS MFG.CO., LTD. is manufactured, name of product " POS-911SUMI ") with frame-shaped (shape: long 90mm × wide 50mm, thick 5mm) silk screen It is printed in glass plate (NSG PRECISION manufacture, name of product " CORNING Glass EAGLE XG ", long 90mm × wide 50mm × thickness 0.5mm) surface.Then, ultraviolet light (80W/cm is irradiated2, metal halide lamp 2, the high 15cm of lamp, belt speed 10 ~15m/ minutes), make printing above-mentioned ultraviolet curable ink solidification, production have by printing bring segment difference (segment difference Band segment difference glass plate highly: 10 μm).
The second film is peeled from the adhesive sheet made in Examples and Comparative Examples, the adhering agent layer of exposing, which is fitted in, to be had Polyethylene terephthalate (PET) film (TOYOBO CO., LTD. manufacture, the name of product " PET of easy adhesive layer A4300 ", thickness: 100 μm) easy adhesive layer.Then, it peels the first film and exposes adhering agent layer, use laminating machine (laminator) (FUJIPLA INC. manufacture, name of product " LPD3214 "), it is whole with the printing surface of adhering agent layer covering frame-shaped The mode in a face is laminated to each glass plate with segment difference.Then, it is carried out under conditions of 50 DEG C, 0.5MPa at 30 minutes pressure heat Reason, is placed 24 hours at normal pressure, 23 DEG C, 50%RH.Then, across above-mentioned PET film, with test example 3 under the same conditions Ultraviolet light is irradiated to adhering agent layer, solidifies adhering agent layer.
Then, 72 hours (endurance test) is taken care of under the conditions of 85 DEG C, the high temperature and humidity of 85%RH.Then, visual confirmation There is bubble-free at the interface of adhering agent layer after printing segment difference and solidifying, floats and peel off, and based on the following benchmarks, chases after to segment difference It is casual to be evaluated.
〇: bubble is not generated, floats and peels off.
At least one of ×: generate bubble, float and peel off.
[test example 6] (evaluation of the appearance of adhesive sheet)
Adhesive sheet coiling body obtained in Examples and Comparative Examples of all adhesive sheets since manufacture after 7 days is put Volume, by visual observation in its overall length (300m) range the abnormal appearance of confirmation folding line, inclined fold etc generation, and based on Under benchmark, the appearance of adhesive sheet is evaluated.Show the result in table 1.In addition, referring in benchmark below " at 5m " The position of the end 5m for unreeling the core material side on direction apart from adhesive sheet of adhesive sheet coiling body, other similar statement also phase Together.In addition, above-mentioned abnormal appearance does not include the trace for causing to generate because of the adhesive tape for adhesive sheet to be fixed on to core material.
◎: between at least at 5m to 300m, abnormal appearance is not generated.
〇: although at 0m to 20m between generate abnormal appearance, between at 20m to 300m, do not generate outer It sees abnormal.
△: although at 0m to 50m between generate abnormal appearance, between at from 50m to 300m, do not generate Abnormal appearance.
×: between at 50m to 300m, produce abnormal appearance.
[table 1]
According to table 1, adhesive sheet coiling body obtained in embodiment can unreel the adhesive sheet with excellent appearance.
Industrial applicibility
Adhesive sheet coiling body of the invention is for example applicable to the manufacture of display body (display).

Claims (7)

1. a kind of adhesive sheet coiling body is the adhering agent layer and layer for having the first film, the single-face side for being laminated in first film The adhesive sheet of the strip of the second film of the surface side opposite with first film of the adhering agent layer is laminated on by described first The face of film side as inside mode, be wound in adhesive sheet coiling body made of cylindric or cylindric core material, feature It is,
First film with a thickness of 100 μm or more, 300 μm hereinafter,
The adhering agent layer with a thickness of 100 μm or more, 1000 μm hereinafter,
The diameter of the core material is 9cm or more, 100cm or less.
2. adhesive sheet coiling body according to claim 1, which is characterized in that the thickness of first film is than second film Thickness it is thick.
3. adhesive sheet coiling body according to claim 1, which is characterized in that energy storage mould of the adhering agent layer at 23 DEG C Amount is 0.001MPa or more, 1.00MPa or less.
4. adhesive sheet coiling body according to claim 1, which is characterized in that Young's modulus of first film at 23 DEG C For 0.01GPa or more, 20GPa or less.
5. adhesive sheet coiling body according to claim 1, which is characterized in that the adhering agent layer width direction extremely There is 2 μm thinner than the maximum gauge of the adhering agent layer of the width direction or more of low film thickness portion, the low film thickness portion in few a part Width the overall width for adding up to the adhering agent layer 5% or more, 50% or less.
6. adhesive sheet coiling body according to claim 5, which is characterized in that the adhesive sheet coiling body unreels direction The length in the low film thickness portion is 1m or more.
7. adhesive sheet coiling body according to claim 1, which is characterized in that the volume number of the adhesive sheet is 3 circles or more.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110240870A (en) * 2018-03-07 2019-09-17 琳得科株式会社 Adhesive sheet coiling body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7477948B2 (en) 2019-08-20 2024-05-02 リンテック株式会社 Adhesive sheet roll

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936465A (en) * 2011-08-15 2013-02-20 日东电工株式会社 Adhesive tape winding body
WO2013115338A1 (en) * 2012-02-02 2013-08-08 日東電工株式会社 Flame-retardant heat-conductive adhesive sheet
CN107033814A (en) * 2015-10-28 2017-08-11 琳得科株式会社 Adherence composition, sticker, adhesive sheet and display body
WO2017163971A1 (en) * 2016-03-24 2017-09-28 リンテック株式会社 Supporting sheet and composite sheet for protective film formation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4393934B2 (en) * 2004-06-23 2010-01-06 リンテック株式会社 Adhesive sheet for semiconductor processing
JP4845614B2 (en) * 2006-07-06 2011-12-28 日東電工株式会社 Release liner, adhesive tape and adhesive tape roll
JP5322609B2 (en) * 2008-12-01 2013-10-23 日東電工株式会社 Film roll for semiconductor device manufacturing
JP2010185037A (en) * 2009-02-13 2010-08-26 Mitsubishi Plastics Inc Adhesive sheet and method for producing the same
JP5814037B2 (en) * 2011-08-05 2015-11-17 日東電工株式会社 Adhesive tape
WO2013141215A1 (en) * 2012-03-23 2013-09-26 株式会社 きもと Film to be applied to window
JP6317591B2 (en) 2014-02-06 2018-04-25 日東電工株式会社 Double-sided pressure-sensitive adhesive sheet and method for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936465A (en) * 2011-08-15 2013-02-20 日东电工株式会社 Adhesive tape winding body
WO2013115338A1 (en) * 2012-02-02 2013-08-08 日東電工株式会社 Flame-retardant heat-conductive adhesive sheet
CN107033814A (en) * 2015-10-28 2017-08-11 琳得科株式会社 Adherence composition, sticker, adhesive sheet and display body
WO2017163971A1 (en) * 2016-03-24 2017-09-28 リンテック株式会社 Supporting sheet and composite sheet for protective film formation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110240870A (en) * 2018-03-07 2019-09-17 琳得科株式会社 Adhesive sheet coiling body
CN110240870B (en) * 2018-03-07 2022-08-30 琳得科株式会社 Adhesive sheet roll

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