WO2016103381A1 - Feuille adhésive sensible à la pression - Google Patents

Feuille adhésive sensible à la pression Download PDF

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Publication number
WO2016103381A1
WO2016103381A1 PCT/JP2014/084250 JP2014084250W WO2016103381A1 WO 2016103381 A1 WO2016103381 A1 WO 2016103381A1 JP 2014084250 W JP2014084250 W JP 2014084250W WO 2016103381 A1 WO2016103381 A1 WO 2016103381A1
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WO
WIPO (PCT)
Prior art keywords
net
pressure
sensitive adhesive
fibers
flatness
Prior art date
Application number
PCT/JP2014/084250
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English (en)
Japanese (ja)
Inventor
木村　光一
徹 田口
Original Assignee
光洋産業株式会社
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 光洋産業株式会社 filed Critical 光洋産業株式会社
Priority to JP2016565742A priority Critical patent/JP6667455B2/ja
Priority to CN201480082258.9A priority patent/CN107207915B/zh
Priority to PCT/JP2014/084250 priority patent/WO2016103381A1/fr
Publication of WO2016103381A1 publication Critical patent/WO2016103381A1/fr

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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
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • 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

Definitions

  • the present invention relates to an adhesive sheet having a stretchable and flexible foamable substrate.
  • the film-side pressure-sensitive adhesive layer is laminated and adhered to the release film so that the film-side pressure-sensitive adhesive layer can be peeled, and one side of the net is laminated and adhered to the film-side pressure-sensitive adhesive layer.
  • a pressure-sensitive adhesive sheet in which a stretchable and flexible foamable base material is laminated and bonded via a base material-side pressure-sensitive adhesive layer is disclosed (for example, see Patent Document 1).
  • the film-side pressure-sensitive adhesive layer is applied to the entire one surface of the release film so as to close the mesh of the net.
  • a base material side adhesive layer is comprised by the adhesive which protruded in the foaming base material side from the net of the film side adhesive layer.
  • the film-side pressure-sensitive adhesive layer is laminated and adhered to the release film so that the film-side pressure-sensitive adhesive layer can be peeled off, and the net is laminated and adhered to the film-side pressure-sensitive adhesive layer.
  • the base-side pressure-sensitive adhesive layer is composed of the adhesive on the film-side pressure-sensitive adhesive layer that protrudes from the net of the net to the foamable base-material side, the adhesive strength of the pressure-sensitive adhesive sheet to other members is reduced.
  • the extensibility of a foamable base material is suppressed by a net, it is excellent in the dimensional stability of a foamable base material, and the sticking operation
  • the coarse sheet composed of the yarns including the warp and the weft arranged in parallel with a gap between the yarns is composed of a coarse woven base fabric coated with or not coated with the thermoplastic polymer
  • An air-permeable sheet repair sheet in which a hot-melt adhesive layer is formed on one surface of the coarse sheet is disclosed (for example, see Patent Document 2).
  • the yarn in the coarse sheet has a flat cross-sectional shape parallel to the plane of the coarse sheet. Further, in the flat cross-sectional shape of the yarn, the ratio of the length (L 1 ) in the direction parallel to the sheet plane to the length (L 2 ) in the direction perpendicular to the sheet plane is 1.3: 1 to 7: 1.
  • the yarn has a flat cross-sectional shape, so that it has moderate flexibility and flexibility, and increased coverage and decreased bulkiness.
  • JP 2009-280796 A (Claim 1, paragraph [0010], FIG. 1)
  • JP-A-61-126192 (Claims 1, 4 and 5, specification, page 5, upper left column, line 7 to same page, same column, line 14)
  • the length (L 1 ) in the direction parallel to the sheet plane and the direction perpendicular to the sheet plane in the flat cross-sectional shape of the yarn Since the ratio to the length (L 2 ) is 1.3: 1 to 7: 1, that is, the flatness L 1 / L 2 of the yarn is as small as 1.3 to 7, this repair sheet
  • the radius of curvature of the adherend surface to which is attached is small, there is a problem that a part of the repair sheet floats from the adherend surface.
  • An object of the present invention is to provide a pressure-sensitive adhesive sheet that is difficult to peel off from the adherend surface and has good adherence to the adherend surface even when the adherend surface is a curved surface having a small curvature radius.
  • the first aspect of the present invention is that, as shown in FIGS. 1 to 3, a release film 11, a net 12 laminated so that one surface faces the release film 11, and the other of the net 12
  • a pressure-sensitive adhesive sheet that is applied to the entire surface of the release film 11 facing the net 12 and closes the mesh 12a of the net 12, and the net 12 is made of a thermoplastic resin.
  • the flatness B 1 / A 1 of the warp fibers 12c is in the range of 10 to 60
  • the flatness B 2 / A 2 is 60 or less.
  • the second aspect of the present invention is a release film 11, a net 60 laminated on the release film 11 so that one surface faces the other, and the other of the net 60.
  • the pressure-sensitive adhesive sheet comprising the layer 14
  • the pressure-sensitive adhesive layer 14 is applied to the entire surface of the release film 11 facing the net 60 and is configured to close the mesh of the net 60
  • the net 60 is made of a thermoplastic resin.
  • the fibers 61a and 62a and the weft fibers 61b and 62b are composed of double first and second mesh bodies 61 and 62 arranged in a lattice pattern.
  • the flatness of the vertical fibers 61a of the first net member 61 b 1 / a 1 and the The flatness b 2 / a 2 of the weft fibers 61b of the first mesh 61 is the same and in the range of 10 to 60, and the flatness b 3 / a 3 of the warp fibers 62a of the second mesh 62 and the first flatness b of transverse fibers 62b of 2 meshwork 62 4 / a 4 are the same and Characterized in that it is less than or equal to zero.
  • a third aspect of the present invention is an invention based on the first or second aspect, and as shown in FIG. 1, the compressive hardness of the foamable substrate 13 at 40% compression is 5 to 200 N / It is 314 cm 2 .
  • a fourth aspect of the present invention is an invention based on the first or second aspect, and as shown in FIGS. 1 and 3, the flatness B 1 / A 1 of the warp fibers 12c is 15-40.
  • the flatness B 2 / A 2 of the weft fibers 12d is 40 or less.
  • a fifth aspect of the present invention is an invention based on the second aspect, and further, as shown in FIGS. 6 and 8, the flatness b 1 / a 1 of the warp fibers 61a of the first mesh body 61 and The flatness b 2 / a 2 of the weft fibers 61b of the first mesh 61 is the same and 15 to 40, and the flatness b 3 / a 3 of the warp fibers of the second mesh and the second mesh The flatness b 4 / a 4 of the weft fibers is the same and 40 or less.
  • the flatness B 1 / A 1 of the warp fibers of the flexible net-like body is relatively large in the range of 10 to 60. Even if affixed to a surface having a curved surface with a small radius of curvature in one direction so that the warp fibers are curved along the curved surface, the pressure-sensitive adhesive sheet is difficult to peel off from the surface to be adhered, and the surface to be adhered to the pressure-sensitive adhesive sheet. Is easy to attach.
  • the transverse fibers of the flat of B 2 / A 2 of transverse fibers of the meshwork of the net was 60 or less, the transverse fibers of the flat of B 2 / A 2 ye flatness of the fiber Te B 1 / A including those which are less than 1 less than 10.
  • the warp fibers are curved along the curved surface with the adhesive sheet having a curved surface with a small radius of curvature in one direction. Since the weft fibers are affixed in a straight line along the curved ridgeline, the weft fibers do not affect the adherence of the pressure-sensitive adhesive sheet to the surface to be adhered to the pressure-sensitive adhesive sheet. The adhering property is kept good.
  • the flatness b 1 / a 1 of the first net of the flexible net and the flatness b 2 / a 2 of the weft fiber are the same. Since the pressure-sensitive adhesive sheet has a curved surface with a small curvature radius in one direction, the warp fibers of the first mesh body are curved along the curved surface. Even if it is affixed or the weft fiber of the first mesh body is affixed so as to bend along this curved surface, the adhesive sheet is difficult to peel off from the adherend surface, and the adherence to the adherent surface of the adhesive sheet is good is there.
  • the second mesh The flatness b 3 / a 3 of the warp fibers of the body and the flatness b 4 / a 4 of the weft fibers are the flatness b 1 / a 1 of the warp fibers of the first reticular body and the flatness b 2 of the weft fibers. / A 2 less than 10 is included.
  • the adhesive sheet has a curved surface with a small curvature radius in one direction.
  • the second mesh body does not affect the adherence to the adherend surface of the adhesive sheet, Good adherence to the adherend surface is maintained.
  • the extensibility of a foamable base material is further controlled by making a network body double, it is excellent in dimensional stability rather than the adhesive sheet of a 1st viewpoint.
  • the pressure-sensitive adhesive sheet 10 is laminated so as to face the release film 11, the net 12 laminated so that one surface faces the release film 11, and the other surface of the net 12. And a foamable base material 13 having extensibility and flexibility, and a pressure-sensitive adhesive layer 14 interposed between the release film 11 and the net 12 and laminating and bonding the release film 11 and the net 12.
  • the pressure-sensitive adhesive layer 14 is applied to the entire surface of the release film 11 facing the net 12 and is configured to close the mesh 12a of the net 12.
  • the release film 11 is made of paper, polypropylene, or the like in which a silicone release agent layer is formed on the surface to which the pressure-sensitive adhesive layer 14 is laminated and bonded via a sealant layer. Due to the presence of the release agent layer, the release film 11 is easily peeled off from the pressure-sensitive adhesive layer 14. Further, the pressure-sensitive adhesive layer 14 enters the mesh 12a of the net 12 by pressing in the state where the release film 11, the pressure-sensitive adhesive layer 14, the net 12 and the foamable base material 13 are laminated (FIG. 1A). The pressure-sensitive adhesive layer 14 is pressure-bonded to the foamable substrate 13 (FIG. 1B).
  • the net 12 is composed of a single reticulated body 12b in which warp fibers 12c and weft fibers 12d made of a thermoplastic resin are arranged in a lattice pattern.
  • the net 12 is a single reticulated body 12b formed by thermocompression bonding after knitting warp fibers 12c and weft fibers 12d made of thermoplastic resin.
  • the thermoplastic resin include polyolefins such as polyethylene and polypropylene, polyethylene terephthalate, polyamide, polyvinyl alcohol, polyacrylonitrile, polyurethane, and halogen-containing polymers.
  • the net 12a of the net 12 coincides with the opening 12e of the net 12b.
  • the opening 12e of the mesh body 12b is preferably substantially square.
  • the flatness B 1 / A 1 of the warp fibers 12c is 10 to 60, Preferably, it is set within the range of 15 to 40 (FIGS. 1 to 3).
  • the flatness B 2 / A 2 of the weft fiber 12d is 60 or less, preferably Is set to 40 or less, more preferably in the range of 10 to 60, and still more preferably in the range of 15 to 40.
  • the flatness B 1 / A 1 of the warp fibers 12c is limited to the range of 10 to 60. If it is less than 10, the net 12 will be too small and the net 12 will become too foamable. 13, the adhesion of the net 12 to the foamable base material 13 is reduced, and when it exceeds 60, the openings 12 e of the mesh body 12 b become too small and the adhesive force of the adhesive layer 14 to the foamable base material 13 is increased. This is because the net 12 is floated and the foamable base material 13 is floated in the included angle test as in the case where the flatness is less than 10. Further, the flatness B 2 / A 2 of the weft fibers 12d is limited to 60 or less. If the flatness B 2 / A 2 exceeds 60, the openings 12e of the mesh body 12b become too small and the adhesive layer 14 adheres to the foamable substrate 13. This is because power is reduced.
  • G 1 is preferably set in the range of 3 to 7 mm.
  • G 2 is preferably set within a range of 3 to 7 mm.
  • the thickness of the warp fibers 12c and the weft fibers 12d of the reticulated body 12b is preferably set in the range of 2 to 100 ⁇ m, more preferably in the range of 20 to 80 ⁇ m.
  • the length G 1 in the width direction of the opening 12e and the length G 2 in the vertical direction of the opening 12e are limited to the range of 3 to 7 mm, respectively.
  • the adhesive strength to the expandable substrate 13 is reduced, and if it exceeds 7 mm, the dimensional stability of the foamable substrate 13 is not improved even if the net 12 is laminated.
  • the thickness of the warp fibers 12c and the weft fibers 12d of the reticulated body 12b is limited to the range of 2 to 100 ⁇ m, respectively. If the thickness is less than 2 ⁇ m, the net 12 is too thin and wrinkles easily occur in the manufacturing process. This is because the net 12 becomes thicker than the pressure-sensitive adhesive layer 14 and the adhesion between the foamable base material 13 and the pressure-sensitive adhesive layer 14 is deteriorated.
  • FIG. 4 shows a method for measuring the incident angle of the net 12.
  • the width and length are cut out to 50 mm and 300 mm, respectively.
  • the warp fibers 12c of the net 12 are cut out in a direction of 300 mm in length.
  • the pressure-sensitive adhesive sheet 10 is wound by a half circumference so that the foamable base material 13 surface of the pressure-sensitive adhesive sheet 10 is in contact with the cylindrical body 16 around the outer peripheral surface of the cylindrical body 16 having a diameter of 100 mm or 25 mm.
  • the foamable base material 13 of the pressure-sensitive adhesive sheet 10 is brought into close contact with the outer peripheral surface of the cylindrical body 16 by the half circumference by the double-sided pressure-sensitive adhesive tape 17 previously pasted on the outer peripheral surface of the cylindrical body 16.
  • the release film 11 of the pressure-sensitive adhesive sheet 10 is peeled off and left for 1 minute, and then the net 12 is not peeled off from the foamable base material 13. Then, the angle ⁇ 1 of the portion in contact with the foamable substrate 13 is measured. This angle is defined as an attachment angle ⁇ 1 of the net 12. As the attachment angle ⁇ 1 increases, that is, as the angle approaches 180 degrees, the attachment property becomes better, and as the attachment angle ⁇ 1 decreases, the attachment property decreases.
  • an EVA hot-melt adhesive or rubber-based hot-melt adhesive that exhibits adhesiveness under heating and exhibits excellent adhesion at room temperature.
  • Aqueous adhesives such as adhesives, acrylic emulsions, EVA emulsions, SBR emulsions, and vinyl acetate emulsions, and solvent-based adhesives such as acrylic, EVA, SBR, and vinyl acetate are used.
  • EPDM Ethylene Propylene Diene Terpolymer
  • foamable base material 13 EPDM (Ethylene Propylene Diene Terpolymer) foam, urethane foam, polyethylene foam or the like having extensibility and flexibility is used.
  • the compression hardness of the foamable substrate 13 at 40% compression is preferably set in the range of 5 to 200 N / 314 cm 2 .
  • the preferable range of the compression hardness at the time of 40% compression of the foamable substrate 13 is limited to the range of 5 to 200 N / 314 cm 2.
  • the foamable substrate 13 is too soft if it is less than 5 N / 314 cm 2. This is because the release film 11 cannot be peeled from the pressure-sensitive adhesive sheet 10 and exceeds 200 N / 314 cm 2 , so that the foamable base material 13 is too hard and the adhesion between the net 12 and the foamable base material 13 deteriorates.
  • FIGS. 1 and 5 An example of a method for manufacturing the pressure-sensitive adhesive sheet 10 configured as described above will be described with reference to FIGS. 1 and 5. However, it is not limited to this manufacturing method.
  • the pressure-sensitive adhesive layer 14 is laminated on the release film 11.
  • the net 12 is laminated on one surface of the release film 11, that is, the surface on which the pressure-sensitive adhesive layer 14 is laminated. Thereby, the pressure-sensitive adhesive layer 14 is detachably bonded to the release film 11, and one surface of the net 12 is bonded to the pressure-sensitive adhesive layer 14.
  • the foamable base material 13 is laminated on the other surface of the net 12 (FIG. 1A). Further, the laminated release film 11, the pressure-sensitive adhesive layer 14, the net 12 and the foamable base material 13 are pressed with rolls 23 and 23. As a result, the pressure-sensitive adhesive layer 14 enters and fills the mesh 12a of the net 12, and the pressure-sensitive adhesive layer 14 is pressure-bonded to the foamable substrate 13 (FIG. 1B).
  • the release film 11, the pressure-sensitive adhesive layer 14, the net 12, and the adhesive film 21 can be applied to only one surface of the release film 11 without applying the pressure-sensitive adhesive 21 to both sides of the net 12.
  • the pressure-sensitive adhesive sheet 10 made of a laminate of the foamable substrate 13 can be manufactured. As a result, the coating device for the adhesive 21 in the manufacturing process of the adhesive sheet 10 can be simplified.
  • the flatness B 1 / A 1 of the warp fibers 12c of the mesh 12b of the flexible net 12 is relatively large in the range of 10 to 60. Even if the sheet 10 is attached to the adherend surface having a curved surface with a small radius of curvature in one direction so that the warp fibers 12c are curved along the curved surface, the adhesive sheet 10 is hardly peeled off from the adherend surface. The adherence to the 10 adherend surface is good.
  • the flatness B 2 / A 2 ye Te fibers 12c of transverse fibers 12d flat Including the case of less than 10 less than the degree B 1 / A 1 .
  • the adhesive sheet 10 is attached to the adherend surface having a curved surface with a small curvature radius in one direction, and the warp fibers 12c follow this curved surface.
  • the weft fibers 12d are pasted in a state of extending along a curved ridge line so that the weft fibers 12d do not affect the adherence of the pressure-sensitive adhesive sheet 10 to the adherend surface. Adhesiveness to the adherend surface of the sheet 10 is kept good.
  • the net 60 is composed of double first and second reticulate bodies 61 and 62 in which warp fibers 61a and 62a and weft fibers 61b and 62b are made of thermoplastic resin and arranged in a lattice pattern. Further, the warp fibers 61a and the weft fibers 61b of the first mesh body 61 and the warp fibers 62a and the weft fibers 62b of the second mesh body 62 are configured not to overlap each other.
  • the warp fibers 61a and 62a and the weft fibers 61b and 62b made of thermoplastic resin are knitted and then thermocompression bonded. 1 and 2nd nets 61 and 62 are produced.
  • the second mesh body 62 is translated relative to the first mesh body 61, whereby the warp fibers 61 a and the weft fibers 61 b of the first mesh body 61 and the warp fibers 62 a and the weft fibers of the second mesh body 62.
  • the first and second nets 61 and 62 are stacked so that the line 62b does not overlap with each other.
  • the laminated first and second mesh bodies 61 and 62 are thermocompression bonded. In this way, the net 60 is produced.
  • the mesh of the net 60 is the openings 61c and 62c of the first and second nets 61 and 62. Does not match.
  • network 60 and the opening parts 61c and 62c of the net-like bodies 61 and 62 are substantially square shapes, respectively.
  • a film having a two-layer structure is opened by a cutting machine to make it wide.
  • the wide film is stretched at a predetermined magnification in a warm bath by a primary stretching machine.
  • the film is further stretched at a predetermined ratio in hot air by a secondary stretching machine.
  • the film is easily broken by this longitudinal stretching step.
  • the stretched film is split in the vertical direction by a splitting tool. Thereby, the split film is regularly reticulated.
  • the split film is widened to a predetermined width or mesh in the horizontal direction by a widening device to form a vertical web.
  • another three-layer film is rolled to a predetermined ratio with a rolling roll and oriented in the longitudinal direction.
  • the film is stretched about 1.1 to 5 times by rolling.
  • the length of the film is extended by an amount corresponding to the rolling, so that the line speed is increased.
  • the film oriented in the longitudinal stretching and longitudinal orientation steps is introduced between the slitter and the receiving roll, and slits are formed along the transverse direction at portions other than both sides of the film.
  • the film in which slits are formed in the transverse direction is stretched in the transverse direction by a transverse stretching apparatus. As a result, the film is formed in a net shape to become a horizontal web.
  • the vertical web and the horizontal web are introduced between the laminated roll and the introduction roll.
  • the horizontal web is introduced in a state of being tensioned in the horizontal direction by a cross guider or the like.
  • a vertical web is introduced under appropriate tension, and the horizontal web is pressed against the laminating roll.
  • the vertical web presses the horizontal web against the laminated roll, and then crimps with the discharge roll.
  • the transverse web is subjected to an appropriate heat treatment. Thereby, a net is manufactured.
  • the thickness and width in the cross section of the warp fiber 61a of the first net 61 constituting the net 60 are a 1 and b 1 respectively, and the thickness and width in the cross section of the weft fiber 61b of the first net 61 are The flatness b 1 / a 1 of the warp fiber 61a of the first mesh 61 and the flatness b 2 / a 2 of the weft fiber 61b are the same, and 10-60, where a 2 and b 2 respectively. It is preferably set within the range of 15 to 40 (FIGS. 6 to 8).
  • the thickness and width in the cross section of the warp fiber 62a of the second mesh 62 constituting the net 60 are a 3 and b 3 respectively, and the thickness and width in the cross section of the weft fiber 62b of the second mesh 62 are When the widths are a 4 and b 4 respectively, the flatness b 3 / a 3 of the warp fibers 62a of the second mesh 62 and the flatness b 4 / a 4 of the weft fibers 62b are the same and 60 In the following, it is preferably set to 40 or less, more preferably in the range of 10 to 60, and still more preferably in the range of 15 to 40.
  • the flatness b 1 / a 1 of the warp fibers 61a of the first mesh 61 and the flatness b 2 / a 2 of the weft fibers 61b are limited to the range of 10 to 60, respectively, when less than 10.
  • the net 60 which will be described later, becomes too small, and the net 60 floats from the foamable base material 13 and the adhesion of the net 60 to the foamable base material 13 decreases. This is because the adhesive strength of the pressure-sensitive adhesive layer 14 to the foamable base material 13 is reduced, and the net 12 is lifted from the foamable base material 13 in the addition angle test as in the case where the flatness is less than 10.
  • the flatness b 3 / a 3 of the warp fibers 62a of the second mesh 62 and the flatness b 4 / a 4 of the weft fibers 62b are limited to 60 or less, respectively. This is because the adhesive strength of the pressure-sensitive adhesive layer 14 to the foamable base material 13 decreases and the net 12 floats from the foamable base material 13 in the addition angle test as in the case where the flatness is less than 10. is there.
  • g 1 and g 2 are 3 to It is preferably set within a range of 7 mm.
  • g 3 and g 4 are It is preferably set within a range of 3 to 7 mm.
  • the thickness of the warp fibers 61a and the weft fibers 61b of the first mesh body 61 and the thickness of the warp fibers 62a and the weft fibers 62b of the second mesh body 62 are set in the range of 2 to 100 ⁇ m, respectively. It is preferable that the thickness is set within a range of 20 to 80 ⁇ m.
  • the length g 1 in the width direction and the length g 2 in the width direction of the opening 61 c of the first mesh body 61, and the length g 3 in the width direction of the opening 62 c of the second mesh body 62 are determined.
  • the direction length g 4 is limited to the range of 3 to 7 mm.
  • the adhesive strength of the pressure-sensitive adhesive layer 14 to the foamable substrate 13 is reduced. This is because the dimensional stability of the foamable base material 13 does not improve even if the layers are laminated.
  • the thickness of the warp fibers 61a and the weft fibers 61b of the first mesh 62 and the thickness of the warp fibers 62a and the weft fibers 62b of the second mesh 62 are limited to the range of 2 to 100 ⁇ m, respectively. If it is less than 2 ⁇ m, the net 12 is too thin, so that wrinkles are likely to occur in the manufacturing process. If it exceeds 100 ⁇ m, the net 12 becomes thicker than the pressure-sensitive adhesive layer 14 and the adhesion between the foamable base material 13 and the pressure-sensitive adhesive layer 14 is improved. Because it gets worse.
  • the flatness b 1 / a 1 of the warp fibers 61 a of the first net 61 of the flexible net 60 and the flatness b 2 / a 2 of the weft fibers 61 b are the same. Since it is the same and is relatively large in the range of 10 to 60, this adhesive sheet 50 is placed on the adherend surface having a curved surface with a small curvature radius in one direction, and the warp fibers 61a of the first mesh 61 are placed on this curved surface.
  • the adhesive sheet 50 is attached so as to be curved or the weft fiber 61b of the first mesh body 61 is attached so as to bend along the curved surface, the adhesive sheet 50 is hardly peeled off from the adherend surface. Good adherence to the adherend surface.
  • the flatness b 3 / a 3 of the warp fibers 62a of the second net 62 of the flexible net 60 and the flatness b 4 / a 4 of the weft fibers 62b are the same and 60 or less.
  • the flatness b 3 / a 3 of the warp fibers 62 a of the second mesh 62 and the flatness b 4 / a 4 of the weft fibers 62 b are determined by the flatness b 1 / a of the warp fibers 61 a of the first mesh 61. 1 and the flatness of the weft fiber 61b is less than 10 less than b 2 / a 2 .
  • the adhesive sheet 50 is curved with a small radius of curvature in one direction.
  • the second mesh 62 is attached to the adherend surface of the adhesive sheet 50.
  • the adhesion to the adherend surface of the pressure-sensitive adhesive sheet 50 is kept good without affecting the properties.
  • the extensibility of the foamable base material 13 is further controlled by making the nets 61 and 62 double, the dimensional stability is superior to the pressure-sensitive adhesive sheet of the first embodiment.
  • the second mesh body is translated with respect to the first mesh body, whereby the first mesh warp fibers and the weft fibers and the second mesh body warp fibers and The weft fibers are configured so as not to overlap the same line.
  • You may comprise so that the warp fiber 81a and the weft fiber 81b and the warp fiber 82a and the weft fiber 82b of the 2nd net-like body 82 may not overlap on the same line.
  • FIG. 9 by rotating the second mesh 82 of the net 80 relative to the first mesh 81, You may comprise so that the warp fiber 81a and the weft fiber 81b and the warp fiber 82a and the weft fiber 82b of the 2nd net-like body 82 may not overlap on the same line.
  • FIG. 9 by rotating the second mesh 82 of the net 80 relative to the first mesh 81, You may comprise so that the warp fiber 81a and the weft fiber 81b and the warp fiber 82a and the weft fiber
  • reference numeral 81 c is an opening portion of the first mesh body 81
  • reference numeral 82 c is an opening portion of the second mesh body 82.
  • an adhesive 21 emulsion type acrylic adhesive manufactured by Koyo Sangyo Co., Ltd .: KR163H
  • an adhesive 21 is dried on the entire surface of the release film 11 to a thickness of 80 ⁇ m. It applied so that it might become.
  • a net 12 was laminated on one surface of the release film 11.
  • the net 12 is composed of a single net 12b in which warp fibers 12c and weft fibers 12d made of polyethylene (thermoplastic resin) are arranged in a lattice pattern, and the cross-sections of the warp fibers 12c and the weft fibers 12d have the same shape.
  • the flatness of the warp fibers 12c and the weft fibers 12d was the same. Specifically, the thickness A 1 and the width B 1 in the cross section of the warp fibers 12c of the mesh body 12b are 30 ⁇ m and 900 ⁇ m, respectively, and the flatness B 1 / A 1 of the warp fibers 12c of the mesh body 12b is 30. Further, the thickness A 2 and the width B 2 in the cross section of the weft fibers 12d of the mesh body 12b were 30 ⁇ m and 900 ⁇ m, respectively, and the flatness B 2 / A 2 of the weft fibers 12d of the mesh body 12b was 30.
  • the opening 12e of the net-like body 12b has a square shape in which the horizontal length G 1 and the vertical length G 2 are 5 mm each.
  • the pressure-sensitive adhesive layer 14 was detachably bonded to the release film 11, and one surface of the net 12 was bonded to the pressure-sensitive adhesive layer 14.
  • a foamable base material 13 (polyurethane foam manufactured by Inoac Corporation: UEI-3, thickness 5 mm) was laminated on the other surface of the net 12 (FIG. 1A).
  • the laminated release film 11, pressure-sensitive adhesive layer 14, net 12, and foamable base material 13 were pressed with rolls 23 and 23.
  • the pressure-sensitive adhesive layer 14 entered the mesh 12 a of the net 12 and was filled, and the pressure-sensitive adhesive sheet 10 was obtained by pressure-bonding the pressure-sensitive adhesive layer 14 to the foamable substrate 13.
  • This pressure-sensitive adhesive sheet 10 was taken as Example 1.
  • the length in the width direction and the length in the vertical direction of the opening 12e of the mesh body 12b in the net 12 in the adhesive sheet 10 were each 5 mm square.
  • the foamable base material 13 of the pressure-sensitive adhesive sheet 10 was brought into close contact with the outer peripheral surface of the cylindrical body 16 by the half circumference with the double-sided adhesive tape 17 previously applied to the outer peripheral surface of the cylindrical body 16. Furthermore, in a state where the surface of the foamable base material 13 of the pressure-sensitive adhesive sheet 10 is in close contact with the cylindrical body 16, the release film of the pressure-sensitive adhesive sheet 10 is peeled off, and after leaving for 1 minute, the net 12 is not peeled off from the foamable base material 13. The angle ⁇ 1 of the portion in contact with the foamable substrate 13 was measured.
  • the 180 degree peeling test was performed as follows based on JIS Z0237. First, a test piece having a width and a length of 25 mm and 150 mm, respectively, was cut out from the adhesive sheet. Next, the test piece from which the release film was removed was affixed to an adherend of SUS304, and a 2 kg rubber roller was reciprocated once for pressure bonding. Furthermore, after curing at room temperature for 1 hour, the pressure-sensitive adhesive sheet was peeled off from the adherend at a speed of 300 mm / min, and the pressure-sensitive adhesive strength of the pressure-sensitive adhesive sheet when peeled off was measured.
  • the opening area of the net is reduced.
  • the adhesion between the foamable substrate and the net and the pressure-sensitive adhesive layer is deteriorated, and the attachment angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm is reduced to 150 degrees and 145 degrees, respectively. It floated from the foamable substrate and was unsuitable as an adhesive sheet.
  • the pressure-sensitive adhesive sheets of Examples 1 to 5 in which the flatness B 1 / A 1 of the warp fibers and the flatness B 2 / A 2 of the weft fibers in the net of the net are within the appropriate ranges of 3 to 60 are within the appropriate ranges of 3 to 60.
  • the attachment angle of the pressure-sensitive adhesive sheet with cylinder diameters of 100 mm and 25 mm is increased to 160 to 180 degrees and 150 to 180 degrees, respectively, and the pressure-sensitive adhesive strength of the pressure-sensitive adhesive sheet in the 180-degree peeling test is 10.5 to 16.3 N / 25 mm width
  • the pressure-sensitive adhesive sheet was excellent or good.
  • Example 6> Instead of the net consisting of a single net having the same cross-sectional shape of the warp fiber and the weft fiber of Example 1, instead of a single net having different cross-sectional shapes of the warp fiber and the weft fiber. I used the net. In this net, the thickness A 1 and the width B 1 in the cross section of the warp fibers of the mesh body were 30 ⁇ m and 900 ⁇ m, respectively, and the flatness B 1 / A 1 of the warp fibers of the mesh body was 30.
  • the thickness A 2 and the width B 2 in the cross section of the weft fibers of the net-like body were 30 ⁇ m and 30 ⁇ m, respectively, and the flatness B 2 / A 2 of the weft fibers of the net-like body was 9.
  • the opening part of the net-like body was a square shape in which the horizontal length G 1 and the vertical length G 2 were 7 mm each.
  • an adhesive sheet was prepared in the same manner as in Example 1. This pressure-sensitive adhesive sheet was referred to as Example 6.
  • Examples 7 to 10 and Comparative Examples 3 to 5 In the pressure-sensitive adhesive sheets of Examples 7 to 10 and Comparative Examples 3 to 5, the nets constituting the net were formed as shown in Table 2, respectively. In addition, the adhesive sheet was produced like Example 6 except the shape of the net-like body which comprises the net
  • the flatness B 1 / A 1 of the warp fibers in the net of the net is within an appropriate range of 30, but the flatness B 2 / A 2 of the weft fibers is a large comparison of 65
  • the adhering angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm is reduced to 155 degrees and 140 degrees, respectively, and the net floats from the foamable substrate in the 180-degree peeling test, which is not suitable as a pressure-sensitive adhesive sheet.
  • the flatness B 2 / A 2 of the weft fibers in the net of the net is within an appropriate range of 30, but the flatness B 1 / A 1 of the vertical fibers is as large as 65.
  • the addition angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm was as small as 150 degrees and 145 degrees, respectively.
  • the net floated from the foamable substrate which was not suitable as a pressure-sensitive adhesive sheet.
  • the flatness B 2 / A 2 of the weft fiber in the net of the net is in an appropriate range of 30, but the flatness B 1 / A 1 of the vertical fiber is as small as 9.
  • the adhesive strength of the adhesive sheet in the 180 degree peeling test was as good as 12.5 N / mm width
  • the addition angle of the adhesive sheet at a cylinder diameter of 100 mm and 25 mm was reduced to 140 degrees and 130 degrees, respectively.
  • the flatness B 1 / A 1 of the warp fibers in the net of the net is in an appropriate range of 10 to 60
  • the flatness B 2 / A 2 of the weft fibers is as small as 9, Examples 6 to In the pressure-sensitive adhesive sheet No.
  • the attachment angle of the pressure-sensitive adhesive sheet with a cylindrical body diameter of 100 mm and 25 mm is increased to 160 to 180 degrees and 150 to 175 degrees, respectively, and the adhesive strength of the pressure-sensitive adhesive sheet in the 180-degree peeling test is also 10.5 to 16.3 N. / 25 mm wide and was excellent or good as an adhesive sheet.
  • Example 11 Instead of the net made of a single net having the same cross-sectional shape of the warp fiber and the weft fiber of Example 1, a net made of a double first and second net was used. Specifically, as shown in FIGS. 6 to 8, the thickness and width in the cross section of the warp fiber 61a of the first mesh 61 constituting the net 60 are a 1 and b 1 , respectively. When the thickness and width in the cross section of the 61 weft fiber 61b are a 2 and b 2 respectively, the flatness b 1 / a 1 of the warp fiber 61a of the first mesh 61 and the flatness b of the weft fiber 61b 2 / a 2 was the same and was 30.
  • the thickness and width in the cross section of the warp fiber 62a of the second mesh 62 constituting the net 60 are a 3 and b 3 respectively, and the thickness and width in the cross section of the weft fiber 62b of the second mesh 62 are When the widths are a 4 and b 4 respectively, the flatness b 3 / a 3 of the warp fibers 62a of the second mesh 62 and the flatness b 4 / a 4 of the weft fibers 62b are the same and 30 Met.
  • the opening 61c of the first mesh 61 has a square shape in which the length g 1 in the transverse direction and the length g 2 in the vertical direction are each 5 mm, and the opening 62c of the second mesh 62 is also The length g 3 in the transverse direction and the length g 4 in the vertical direction were each 5 mm.
  • an adhesive sheet was prepared in the same manner as in Example 1. This pressure-sensitive adhesive sheet was referred to as Example 11.
  • Examples 12 to 16 and Comparative Examples 6 to 9 In the pressure-sensitive adhesive sheets of Examples 12 to 16 and Comparative Examples 6 to 9, the first and second nets constituting the net were formed as shown in Table 3, respectively. In addition, the adhesive sheet was produced like Example 11 except the shape of the 1st and 2nd mesh body which comprises the net
  • the same additive angle test and 180-degree peeling test as in Comparative Test 1 were performed, respectively.
  • the pressure-sensitive adhesive sheet is made of a cylindrical body having a diameter of 100 mm and a cylindrical body having a diameter of 25 mm, the foamable substrate surface is in contact with the cylindrical body, and the vertical fiber of the first net-like body of the net is the cylindrical body.
  • the half fiber was wound so that the weft fibers of the first net-like body of the net coincided with the circumferential direction and coincided with the ridge line direction of the cylindrical body.
  • the warp fiber flatness b 1 / a 1 and the weft fiber flatness b 2 / a 2 in the first net of the net are within the appropriate ranges of 30, respectively.
  • the pressure-sensitive adhesive sheet of Comparative Example 6 in which the flatness b 3 / a 3 of the warp fibers in the reticulate body and the flatness b 4 / a 4 of the weft fibers are 65, respectively, the pressure-sensitive adhesive sheet with a cylindrical body diameter of 100 mm and 25 mm The angles were reduced to 150 degrees and 135 degrees, respectively, and in the 180 degree peeling test, the net floated from the foamable substrate, which was not suitable as an adhesive sheet.
  • the flatness b 1 / a 1 of the warp fibers in the first mesh body of the net and the flatness b 2 / a 2 of the weft fibers are each small as 9, and the flatness b 3 of the warp fibers in the second mesh body.
  • the pressure-sensitive adhesive strength of the pressure-sensitive adhesive sheet in the 180-degree peeling test was as good as 10.0 N / 25 mm width.
  • the attachment angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm was as small as 143 degrees and 130 degrees, respectively, and was not suitable as a pressure-sensitive adhesive sheet.
  • the flatness b 1 / a 1 of the warp fibers in the first mesh body of the net and the flatness b 2 / a 2 of the weft fibers are each small as 9, and the flatness b 3 of the warp fibers in the second mesh body.
  • the addition angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm is reduced to 145 degrees and 135 degrees, respectively.
  • the net floated from the foamable base material which was not suitable as an adhesive sheet.
  • the flatness b 1 / a 1 of the warp fibers in the first mesh body of the net and the flatness b 2 / a 2 of the weft fibers are respectively large as 65, and the flatness b 3 of the warp fibers in the second mesh body.
  • the attachment angle of the pressure-sensitive adhesive sheet at a cylindrical body diameter of 100 mm and 25 mm is reduced to 145 degrees and 135 degrees, respectively.
  • the net floated from the foamable base material which was not suitable as an adhesive sheet.
  • the flatness b 1 / a 1 of the warp fibers in the first net of the net and the flatness b 2 / a 2 of the weft fibers are within an appropriate range of 10 to 60, and in the second mesh
  • Adhesion angles of adhesive sheets at diameters of 100 mm and 25 mm are increased to 155 to 180 degrees and 150 to 175 degrees, and the adhesive force of the adhesive sheet in the 180 degree peeling test is increased to 10.2 to 15.6 N / 25 mm width, which is adhesive. It was excellent or good as a sheet.
  • Example 17 Instead of the foamable substrate of Example 1 (compression hardness: 88 N / 314 cm 2 , thickness: 5 mm), a foamable substrate (thickness: 5 mm) having a compression hardness of 5 N / 314 cm 2 was used. A pressure-sensitive adhesive sheet was produced in the same manner as in Example 1 except that. This adhesive sheet was referred to as Example 17.
  • Example 18 Instead of the foamable substrate of Example 1 (compression hardness: 88 N / 314 cm 2 , thickness: 5 mm), a foamable substrate (thickness: 5 mm) having a compression hardness of 200 N / 314 cm 2 was used. A pressure-sensitive adhesive sheet was produced in the same manner as in Example 1 except that. This pressure-sensitive adhesive sheet was designated as Example 18.
  • Example 20 Instead of the foamable substrate of Example 11 (compression hardness: 88 N / 314 cm 2 , thickness: 5 mm), a foamable substrate (thickness: 5 mm) having a compression hardness of 200 N / 314 cm 2 was used. A pressure-sensitive adhesive sheet was produced in the same manner as in Example 1 except that. This pressure-sensitive adhesive sheet was referred to as Example 20.
  • the pressure-sensitive adhesive sheet of Examples 17 and 18 using a net composed of a single net-like material with a compressive hardness of the foamable substrate of 5 N / 314 cm 2 and 200 N / 314 cm 2 , respectively.
  • the compression hardness of the base material is appropriate as 5 N / 314 cm 2 and 200 N / 314 cm 2 , respectively, and a net made of a double network is used. It was found that the adhesive properties of the adhesive sheet were good and preferable as an adhesive sheet.
  • the pressure-sensitive adhesive sheet of the present invention can be used for vehicle soundproofing sheets, watertight or airtight packing, heat insulating materials, and the like.

Landscapes

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

Abstract

La présente invention concerne une feuille adhésive sensible à la pression (10) qui comprend un film anti-adhésif (11) et dans laquelle un filet (12) a été superposé afin qu'une de ses surfaces se trouve face au film anti-adhésif (11) et une base expansée (13) qui est expansible et souple a été superposée afin de faire face à l'autre surface du filet. La feuille (10) est configurée de sorte qu'une couche adhésive sensible à la pression (14) ayant été interposée entre le film anti-adhésif et le filet soit appliquée à la surface entière du film anti-adhésif, qui fait face au filet, et qui remplit les ouvertures (12a) du filet, et de là le film anti-adhésif et le filet sont stratifiés. Le filet comprend un objet en forme de filet à couche unique (12b) configuré à partir de fibres de chaîne (12c) et de fibres de trame (12d) qui sont chacune constituées d'une résine thermoplastique et qui ont été disposées en réseau. Lorsque l'épaisseur et la largeur de chaque fibre de chaîne sont respectivement exprimées par A1 et B1 et que l'épaisseur et la largeur de chaque fibre de trame sont respectivement exprimées par A2 et B2, alors la planéité B1/A1 se situe dans la plage de 10 à 60 et la planéité B2/A2 est de 60 ou moins.
PCT/JP2014/084250 2014-12-25 2014-12-25 Feuille adhésive sensible à la pression WO2016103381A1 (fr)

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JP2016565742A JP6667455B2 (ja) 2014-12-25 2014-12-25 粘着シート
CN201480082258.9A CN107207915B (zh) 2014-12-25 2014-12-25 压敏粘合片
PCT/JP2014/084250 WO2016103381A1 (fr) 2014-12-25 2014-12-25 Feuille adhésive sensible à la pression

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JP2019218497A (ja) * 2018-06-21 2019-12-26 Ｊｘｔｇエネルギー株式会社 粘着テープ

Citations (9)

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JPS61126192A (ja) * 1984-11-21 1986-06-13 Hiraoka & Co Ltd 通風性シート補修用シート
JPH05301325A (ja) * 1992-04-23 1993-11-16 Toyokawa Sangyo:Yugen シート類への非連続粘着層形成方法
JP2000119609A (ja) * 1998-10-14 2000-04-25 Sekisui Chem Co Ltd 床材固定用両面粘着テープ及びこれを用いた床施工方法
JP2000178521A (ja) * 1998-12-17 2000-06-27 Hagihara Industries Inc 粘着テープ用基布
JP2006137899A (ja) * 2004-11-15 2006-06-01 Diatex Co Ltd 耐候性粘着シート
JP2007119584A (ja) * 2005-10-27 2007-05-17 Diatex Co Ltd 発泡粘着シート
JP2009280796A (ja) * 2008-04-23 2009-12-03 Koyo Sangyo Co Ltd 粘着シート及びその製造方法
JP2010215900A (ja) * 2009-02-17 2010-09-30 Koyo Sangyo Co Ltd 粘着シート及びその製造方法
JP2013193223A (ja) * 2012-03-16 2013-09-30 Hagihara Industries Inc 手切れ性を有する積層シート、発泡積層シート及びその粘着シート又は粘着テープ

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JPH11343726A (ja) * 1998-06-02 1999-12-14 Sekisui Chem Co Ltd 床材固定方法
JP2007224185A (ja) * 2006-02-24 2007-09-06 Toyo Ink Mfg Co Ltd 粘着剤層付き発泡シート及びその製造方法

Patent Citations (9)

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Publication number Priority date Publication date Assignee Title
JPS61126192A (ja) * 1984-11-21 1986-06-13 Hiraoka & Co Ltd 通風性シート補修用シート
JPH05301325A (ja) * 1992-04-23 1993-11-16 Toyokawa Sangyo:Yugen シート類への非連続粘着層形成方法
JP2000119609A (ja) * 1998-10-14 2000-04-25 Sekisui Chem Co Ltd 床材固定用両面粘着テープ及びこれを用いた床施工方法
JP2000178521A (ja) * 1998-12-17 2000-06-27 Hagihara Industries Inc 粘着テープ用基布
JP2006137899A (ja) * 2004-11-15 2006-06-01 Diatex Co Ltd 耐候性粘着シート
JP2007119584A (ja) * 2005-10-27 2007-05-17 Diatex Co Ltd 発泡粘着シート
JP2009280796A (ja) * 2008-04-23 2009-12-03 Koyo Sangyo Co Ltd 粘着シート及びその製造方法
JP2010215900A (ja) * 2009-02-17 2010-09-30 Koyo Sangyo Co Ltd 粘着シート及びその製造方法
JP2013193223A (ja) * 2012-03-16 2013-09-30 Hagihara Industries Inc 手切れ性を有する積層シート、発泡積層シート及びその粘着シート又は粘着テープ

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JP6667455B2 (ja) 2020-03-18
JPWO2016103381A1 (ja) 2018-01-25
CN107207915A (zh) 2017-09-26

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