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WO2009066801A1 - Feuille d'adhésif sensible à la pression et son procédé de fabrication - Google Patents

Feuille d'adhésif sensible à la pression et son procédé de fabrication Download PDF

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Publication number
WO2009066801A1
WO2009066801A1 PCT/JP2008/071754 JP2008071754W WO2009066801A1 WO 2009066801 A1 WO2009066801 A1 WO 2009066801A1 JP 2008071754 W JP2008071754 W JP 2008071754W WO 2009066801 A1 WO2009066801 A1 WO 2009066801A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
sensitive adhesive
sheet
adherend
adhesive layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/071754
Other languages
English (en)
Japanese (ja)
Inventor
Junichi Otsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lintec Corp
Original Assignee
Lintec Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lintec Corp filed Critical Lintec Corp
Publication of WO2009066801A1 publication Critical patent/WO2009066801A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous

Definitions

  • the present invention relates to an adhesive sheet and its production. More specifically, the present invention has a pressure-sensitive adhesive layer having a plurality of independent convex part forces S having a hollow part inside and communicating with the outside through an opening formed on the upper surface thereof. And when affixing to the adherend, the aerodynamic force S comes off, the ⁇ i L is easy to place, and sticks with a squeegee.
  • the present invention relates to a pressure-sensitive adhesive sheet in which unevenness due to the convex shape of the pressure-sensitive adhesive layer does not appear and a good appearance force S, and to efficiently produce this pressure-sensitive adhesive sheet. Background sickle
  • a pressure-sensitive adhesive sheet is generally composed of a sheet, a pressure-sensitive adhesive layer formed on the surface thereof, and a release sheet usually provided thereon.
  • the release sheet is peeled off, and the adhesive layer is attached so that the adhesive layer is in contact with the adherend.
  • this adhesive sheet has a wide area, ⁇ 8 ⁇ There is no air retention between the adhesive layer and the adherend, and this air accumulation part is As a result, there was a problem that a swelling occurred on the surface side of the adhesive sheet occupied by the shellfish, and it was difficult to stick the adhesive sheet cleanly 1 ". To re-apply shellfish, to attach to an adherend such as glass, it is difficult to wet the adherend with an interface 3 ⁇ 4tt ⁇ Have been taken ⁇
  • a pressure-sensitive adhesive sheet (see, for example, Reference 1) composed of a peeling member having an independent small concave portion that closely adheres to the small convex portion has been used.
  • Blowing since air escapes from the gap between the adherend and the portion other than the small convex portion to be adhered to the adherend, so-called “blowing” does not occur.
  • unevenness due to the convex part of the pressure-sensitive adhesive layer becomes worse on the surface of the genius.
  • the present invention has a structure in which the air is easily removed and the force position is easy when the adherend is formed, and the uneven force due to the convex shape of the pressure-sensitive adhesive layer can be exerted. It is an object of the present invention to provide a pressure-sensitive adhesive sheet that can provide good wrinkles and to efficiently produce the pressure-sensitive adhesive sheet.
  • a pressure-sensitive adhesive sheet having a plurality of independent convex part forces S provided with an adhesive layer having a hollow part inside and communicating with the outside through an opening formed on the upper surface thereof is attached to an adherend. Air is removed when attached, force is difficult to position due to small repellent fibers with the adherend, and squeegee sticks, the cavity inside the convex part It has been found that since the partial force is 3 m, there is no unevenness due to the convex shape of the surface [occupant layer], and a good surface roughness can be obtained.
  • such an adhesive sheet uses a release sheet provided with a peeling ail force s having a concave transfer surface on the surface, and the depth of the concave portion in the concave shape on the peeling sheet 1.
  • the present invention has been developed based on strong knowledge.
  • a pressure-sensitive adhesive sheet in which a pressure-sensitive adhesive layer having a plurality of independent convex portions is provided on at least one surface of a paper sheet,
  • the pressure-sensitive adhesive sheet has a convex part that is in contact with the adherend and has a hollow part inside, and is communicated to the outside through an opening formed on the upper surface of the adhesive part.
  • the shape of the convex portion in contact with the adherend is a substantially semi-circular or substantially blue circle having a height of 5 to 25 50 / im, and is substantially hemispherical. ⁇ : 1 5 0 0 / im, abbreviated blue circle
  • the bottom surface has a major axis of 100 to 2000 / ⁇ , and a minor axis of 50 to 1000 ⁇ m.
  • the pressure-sensitive adhesive sheet of the present invention has a pressure-sensitive adhesive layer provided with a plurality of independent convex part forces S, which has a hollow part inside and communicates with the outside through an opening formed on the upper surface thereof.
  • the aerodynamic force S comes off, and because the area of the transmissible area with the adherend is small, the position is easy, and it is affixed with a squeegee. Since the cavities of mL are mL, the unevenness caused by the convex shape of the adhesive layer is not reduced, and a projectile is obtained.
  • Fig. 1 is a plane of an example of the pressure-sensitive adhesive layer in the pressure-sensitive adhesive sheet of the invention
  • ⁇ : Fig., Fig. 2 is the center of the convex part in the above-mentioned plan schematic diagram »3 ⁇ 4 (surface schematic diagram, Fig. 3 ( (a) to (c) are schematic diagrams for explaining the leakage formed when the cavity force S is formed inside the convex portion in the pressure-sensitive adhesive layer and the opening force S is formed on the upper surface of the force convex portion.
  • g.4 is a schematic longitudinal sectional view of the convex part of the adhesive layer formed of ⁇ - «S in F i g.3 (a) to (c) above, and F i g.5 (a) is an example.
  • a pressure-sensitive adhesive layer strength S having a plurality of independent convex portions having specific properties is formed on at least one surface of the paper sheet.
  • the adhesive layer j is provided with a plurality of independent convex portions, and these convex portions are substantially formed when the present occupying sheet is put on the adherend. There may be only convex portions that are in contact with the adherend, and a convex portion group that is in contact with the adherend and a small convex portion group that is lower in height force s and does not contact the adherend. You can mix them.
  • the small convex portion group that is not in contact with the adherend is usually formed in a flat portion between the convex portion and the convex portion that are in contact with the adherend.
  • the wrinkle-shaped portion contacting the adherend is preferably 50% or more, more preferably 60% or more, and still more preferably 80% or more. It has a hollow portion and communicates with the outside through an opening formed on the upper surface of the force.
  • the convex portion that contacts the adherend has a hollow portion inside, and has a structure that communicates with the outside by an opening formed on the upper surface of the force; This will be described in 3t3 ⁇ 43 ⁇ 4 of the pressure-sensitive adhesive sheet.
  • the total of the bottom surface of each convex portion in contact with the adherend is 10 to 90% of the pressure-sensitive adhesive layer because of the ease of positioning m ⁇ . Preferably, 15 to 85% more preferred.
  • FIG. 1 shows a schematic plan view of one example of the pressure-sensitive adhesive layer
  • Fig. 2 shows a schematic diagram of the center line of the convex portion in the plane.
  • 1 indicates a convex portion having a hollow portion 4 inside and communicating with the outside through an opening 2 formed on the upper surface.
  • 3 is a flat part between adjacent convex parts 1 5 represents a base sheet.
  • the height h is about 5 to 250 ⁇ m, preferably 20 to 200 ⁇ m, and in the case of a substantially hemispherical shape, the bottom diameter is 50 to 1500 ⁇ ⁇ M, Preferably, it is 100 to 1000 zm, and it is a rough blue circle ⁇ ⁇ ", where the major axis of the bottom is 100 to 2000; / mSS, preferably 200 to 1500 m, the minor axis is 50 to: l OOO / z mg3 ⁇ 4 Preferably, it is 100 to 700 ⁇ m.
  • a substantially blue circle ⁇ refers to a shape obtained by cutting a substantially ellipsoid into a plane that includes the maximum major axis and the maximum minor axis and approximately half in a TO plane. Includes solids with similar shapes such as molds, m. Sausage molds, rugby Bonore molds, etc.
  • the average thickness b of the outer shell at the convex portion in contact with the adherend is about 5 to 2 ⁇ , preferably 10 to 10 ⁇ from the viewpoint of cavity formation.
  • a is from 1 to 2000 im3 ⁇ 4g, preferably from 2 to 150 ⁇ , because of the vacancy.
  • the convex portion in contact with the adherend may be formed on the flat portion 3 between the adjacent convex portions with a small convex portion force s that does not contact the adherend.
  • the small convex portion may have a hollow portion or may not have a hollow portion.
  • the thickness c of the flat portion 3 is usually 5 to 20 ⁇ 3 ⁇ 43 ⁇ 4, preferably 10 to 10 Ojum.
  • the thickness of the pressure-sensitive adhesive layer obtained by bonding the pressure-sensitive adhesive sheet of the present invention to the adherend is usually 5 to 200 ⁇ m from the viewpoint of the adhesion with the adherend and the balance of the formation of the cavity of the convex portion. m, preferably 10 to 100 im. .
  • the semi-occupying sheet of the present invention having such a shape of the occupant layer has the following effects.
  • the pressure-sensitive adhesive used for forming the pressure-sensitive adhesive layer is not particularly limited, and any of those commonly used for the pressure-sensitive adhesive layer of the conventional adhesive sheet can be used appropriately.
  • acrylic pressure-sensitive adhesives, rubber-based pressure-sensitive adhesives, silicone-based pressure-sensitive adhesives, polyurethane-based pressure-sensitive adhesives, and polyester-based pressure-sensitive adhesives can be used.
  • it may be an emulsion, cat or IJ type deviation, and it may be a lifetime or non-regular deviation.
  • the sheet used for the pressure-sensitive adhesive sheet of the present invention is not particularly limited, and various types of plastic sheets commonly used as a pressure-sensitive sheet such as a pressure-sensitive adhesive sheet having a occupant layer are used. be able to. On the surface of the talent, printing, printing, vapor deposition, sputtering, etc.
  • Machine cranes such as « ⁇ layers, dust coats, antifouling coats, and light coats may be formed.
  • plastic sheet examples include polyethylene resins such as polyethylene, polypropylene, and various polyolefin copolymers, polyester resins such as polyethylene terephthalate, polyethylene naphthalate, and polybutylene terephthalate, polystyrene resins, polyvinyl chloride resins, Acrylic resin, polycarbonate resin, polyamide resin, polyurethane resin, fluorine resin such as polytetrafluoroethylene, polybutene, polybutadiene, polymethylpentene, ethylene vinyl acetate copolymer, ethylene (meth) acrylo Polymer, Ethylene (meth) Atari A Ester Copolymer, ABS resin, Ionoma Kazuki, Polyolefin, Polyurethane, Polystyrene, Polyvinyl chloride, Polyester And a sheet comprising a plastic elastomer containing these components and a mixture of these resins or an iia layer.
  • polyethylene resins such as polyethylene, poly
  • these plastic sheets may be subjected to a surface treatment such as oxidation or unevenness, if desired, in order to improve adhesion to adhesive layers, printing layers, ink receiving layers, etc.
  • a surface treatment such as oxidation or unevenness, if desired, in order to improve adhesion to adhesive layers, printing layers, ink receiving layers, etc.
  • Examples of the oxidation method include corona 3 ⁇ 4w processing, plasma processing, chromium processing (humidity, flame processing, sm, ozone 'ultraviolet irradiation, it processing, etc.
  • examples of the roughening method include sand blasting, processing, etc.
  • These surface treatment methods are appropriately selected according to the thickness of the film, but generally, the edge release method is preferably used from the standpoint of effectiveness and workability, etc.
  • the primer layer Primer treatment can be applied.
  • the basis weight is usually selected in the range of 40 to: I 20 g Zm 2 .
  • a plastic sheet is used for the old sheet, but its thickness is not particularly limited, Usually, it is selected in the range of 20 to 500 ⁇ m, preferably 30 to 300 ⁇ m.
  • the pressure-sensitive adhesive sheet according to the present invention is manufactured on the peeling sheet having a concave transfer surface on the surface S® force S on the peeling base layer 1 provided with a thickness smaller than the depth of the concave portion in the concave shape.
  • the adhesive sheet of the present invention described above is manufactured by pasting the old rice occupant layer and then bonding the old sheet to the octopus occupant layer.
  • a concave portion having a predetermined shape is formed on a tree-like layer such as a polyethylene layer provided on the surface of the release sheet Sit by a conventional method using an emboss slew or the like. Form a decorative surface by forming and then peeling off.
  • a pressure-sensitive adhesive layer is formed on the release sheet provided with the concave transfer surface force S by removing the follower * ⁇ to obtain a pressure-sensitive adhesive layer with a release sheet.
  • the pressure-sensitive adhesive sheet of the present invention having a pressure-sensitive adhesive layer having a hollow portion inside and having a convex portion communicating with the outside by an opening formed on the upper surface thereof. Can be manufactured.
  • the release sheet When separating, the release sheet is peeled off, the pressure-sensitive adhesive layer is brought into contact with the adherend, and affixed while applying pressure with a squeegee or the like. It can be attached to the cavity force in the strong convex part 3 ⁇ 43 ⁇ 4 ⁇ , close contact 14 well.
  • the shell-shaped adhesive sheet does not damage the wrinkles due to dents on the surface of the flocculated surface, or raised and recessed structures.
  • Fig. 3 (a) to (c) is a foolery diagram for explaining the formation of the opening force S on the upper surface of the convex portion in the layer.
  • a release sheet 1 having an uneven shape transfer surface 1
  • bubbles 13 are swollen into the concave portions 14 of the release sheet 11 [Fig. 3 (a)].
  • the pressure-sensitive adhesive layer 12 follows the surface of the recess due to its own weight, the thickness of the upper surface portion of the bubble 13 a decreases (Fig. 3 (b)).
  • the top surface of the bubble The opening part 2 is formed by opening the adhesive layer.
  • the pressure-sensitive adhesive layer has a cavity 4 inside, and a convex portion 1 is formed which communicates with the outside by an opening 2 formed on the upper surface of the cavity.
  • the opening diameter shown in Fig. 5 (3) and i g.5 (b) is 30 ⁇
  • a pattern consisting of a semi-f-shaped concave part with a depth of 5 ⁇ ⁇ m, a major axis of 600 ⁇ m, a minor diameter of 240 ⁇ m, and a semi-elliptical concave part with a depth of 120 m is formed.
  • a release sheet having a shape transfer surface was formed by applying a thickness of 0.1 ⁇ m.
  • F i g.5 (a) is an electron micrograph of ⁇ 50 of a release sheet having a shape transfer surface formed with a substantially hemispherical concave portion and a substantially blue circular concave concave force S.
  • 5 (b) is a plan view created by tracing the ⁇ line of the recess based on F i g.5 (a).
  • Reference numeral 22 is a substantially semi-concave recess, and 23 is a substantially semi-elliptical recess.
  • Atalinole-based rice occupant [Nippon Synthetic Chemical Industry Co., Ltd., “Coponil N-2147” 100 parts by mass, Nippon Polytane Ring “Colonet L” 1 mass
  • 80 ⁇ thick polypropylene synthetic resin [Yupo Corporation tt, product name “Yupo SGS80”] was bonded.
  • F i g.6 (a) is an electron microscope with a magnification of 70, which is a pressure-sensitive adhesive sheet having a convex portion with an opening force S formed on the upper surface with a hollow portion inside the approximately blue circle TO convex portion.
  • ⁇ Photo is a plan view created by tracing the orchid line of the convex portion based on F i g.6 (b) «F i g.6 (a).
  • the substantially hemispherical convex portion group 24 has a collapsed internal cavity, but 9 9% of the substantially convex blue circular convex portion group 25 has It has a hollow part inside, communicates with the outside through an opening 26 formed on the upper surface, and forms a convex part in contact with the adherend.
  • Shoe Convex Shape Group 2 Since the height is lower than 5, the contact with the adherend is not possible.
  • the total area of the bottom surface of the approximately semi-ellipsoidal convex part is approximately 60%, the major axis of the bottom surface is approximately 60.000 ⁇ m, the minor axis is approximately 240.mu.m, and between adjacent convex parts. Of: about 50 ⁇ m, average thickness of outer shell was about 24 m, height 3 ⁇ 4 ⁇ 10 ⁇ m, and diameter of opening was about 140 ⁇ m.
  • this adhesive sheet is lOOmmXlOOmm, peeled off the release sheet and pasted to the melamine plate with a squeegee.
  • an uneven shape that could damage the wrinkles was not observed.
  • the pressure-sensitive adhesive sheet according to the present invention allows air to escape when it is attached to an adherend, force f is easy to stand, and unevenness due to the convex shape of the pressure-sensitive adhesive layer is obtained. And there is a child ⁇ II.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur une feuille d'adhésif sensible à la pression qui comprend une feuille de base (5) et, formée sur au moins une face de celle-ci, une couche (12) d'adhésif sensible à la pression ayant des parties saillantes indépendantes (1). Dans la couche (12) d'adhésif sensible à la pression, les parties saillantes, qui viennent en contact avec une surface à coller, ont chacune un creux (4) à l'intérieur, le creux communiquant avec l'extérieur par une ouverture (2) formée dans une zone supérieure de la partie saillante. L'invention porte également sur un procédé de fabrication de la feuille d'adhésif sensible à la pression qui comprend les opérations consistant à préparer une feuille anti-adhésive (11) ayant, sur une surface de celle-ci, une couche anti-adhésive avec une surface de transfert pleine d'aspérités, à former sur la couche anti-adhésive une couche (12) d'adhésif sensible à la pression ayant une épaisseur inférieure à la profondeur des parties en creux des aspérités, puis à laminer une feuille de base (5) sur la couche (12) d'adhésif sensible à la pression. Les caractéristiques de cette feuille d'adhésif sensible à la pression résident dans le fait que, dans l'application de la feuille sur une surface à coller, l'exclusion d'air et le positionnement sont aisés, et que l'application de celle-ci donne un aspect satisfaisant n'ayant pas de rugosité attribuable à la forme des parties saillantes de la couche (12) d'adhésif sensible à la pression.
PCT/JP2008/071754 2007-11-22 2008-11-21 Feuille d'adhésif sensible à la pression et son procédé de fabrication Ceased WO2009066801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-303364 2007-11-22
JP2007303364A JP2009126944A (ja) 2007-11-22 2007-11-22 粘着シート及びその製造方法

Publications (1)

Publication Number Publication Date
WO2009066801A1 true WO2009066801A1 (fr) 2009-05-28

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ID=40667615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/071754 Ceased WO2009066801A1 (fr) 2007-11-22 2008-11-21 Feuille d'adhésif sensible à la pression et son procédé de fabrication

Country Status (2)

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JP (1) JP2009126944A (fr)
WO (1) WO2009066801A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6778562B2 (ja) * 2016-09-16 2020-11-04 日東電工株式会社 剥離ライナー付き粘着シート

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62280281A (ja) * 1986-05-30 1987-12-05 Nichiban Co Ltd 再剥離性粘着体及びその製造方法
WO1995011655A1 (fr) * 1993-10-29 1995-05-04 Minnesota Mining And Manufacturing Company Systemes de fermeture adhesifs structures
JP2000274421A (ja) * 1999-03-25 2000-10-03 Kimoto & Co Ltd 吸盤貼着シート
JP2005298674A (ja) * 2004-04-12 2005-10-27 Oji Tac Hanbai Kk 粘着シートおよびその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62280281A (ja) * 1986-05-30 1987-12-05 Nichiban Co Ltd 再剥離性粘着体及びその製造方法
WO1995011655A1 (fr) * 1993-10-29 1995-05-04 Minnesota Mining And Manufacturing Company Systemes de fermeture adhesifs structures
EP0725617A1 (fr) * 1993-10-29 1996-08-14 Minnesota Mining And Manufacturing Company Systemes de fermeture adhesifs structures
CN1133556A (zh) * 1993-10-29 1996-10-16 美国3M公司 表面具有一定结构的粘合封闭件系统
BR9407908A (pt) * 1993-10-29 1996-11-26 Minnesota Mining & Mfg Sistema de fecho adesivo sensível à pressao fralda e sistema de fixaçao através de adesivo sensível à pressao
JP2000274421A (ja) * 1999-03-25 2000-10-03 Kimoto & Co Ltd 吸盤貼着シート
JP2005298674A (ja) * 2004-04-12 2005-10-27 Oji Tac Hanbai Kk 粘着シートおよびその製造方法

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