JP2009280796A - Pressure sensitive adhesive sheet and method of producing the same - Google Patents

Pressure sensitive adhesive sheet and method of producing the same Download PDF

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JP2009280796A
JP2009280796A JP2009098063A JP2009098063A JP2009280796A JP 2009280796 A JP2009280796 A JP 2009280796A JP 2009098063 A JP2009098063 A JP 2009098063A JP 2009098063 A JP2009098063 A JP 2009098063A JP 2009280796 A JP2009280796 A JP 2009280796A
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sensitive adhesive
adhesive layer
net
film
pressure
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JP5127766B2 (en
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Koichi Kimura
光一 木村
Yasuyo Omori
靖代 大森
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Koyo Sangyo Co Ltd
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Koyo Sangyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure sensitive adhesive sheet whose pressure sensitive adhesion does not decrease even when the pressure sensitive adhesive sheet is adhered to another element and a sheet of which is excellent in dimensional stability to a foamable substrate. <P>SOLUTION: A pressure sensitive adhesive layer 12 on a film side is peelably laminated and adhered to a release film 11 of a pressure sensitive adhesive sheet 10, one side of a net 13 is laminated and adhered to the pressure sensitive adhesive layer 12 on the film side, and an expandable, flexible and foamable substrate 16 is laminated and adhered to the other side of the net 13 through a pressure sensitive adhesive layer 14 on a substrate side. The pressure sensitive adhesive layer 12 on the film side is applied onto the whole surface of one side of the release film 11 to close meshes 13a of the net 13. The pressure sensitive adhesive layer 14 on the substrate side is formed by the pressure sensitive adhesive which is protruded from the meshes 13a of the net 13 to the foam substrate 16 side of the pressure sensitive adhesive layer 12 on the film side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、伸張性及び可撓性のある発泡性基材を有する粘着シートと、この粘着シートの製造方法に関するものである。   The present invention relates to a pressure-sensitive adhesive sheet having a stretchable and flexible foamable base material, and a method for producing the pressure-sensitive adhesive sheet.

従来、この種の粘着シートして、ネットの両面に、塗布、含浸、吹き付けなどの手段により接着剤層が形成され、一方の面の接着剤層により、上記ネットが通気性素材の表面に接着され、他方の面の接着剤層により、ネットにおける通気性素材に接着されていない側の表面がシリコン樹脂を含浸したセパレート紙やプラスチックフィルムなどの離型紙によって被覆された通気性部材が開示されている（例えば、特許文献１参照。）。この通気性部材は、ロールから引き出されコンベア等によって搬送されている剥離紙の表面に、同じくロールから引き出された後、糊付け装置によってその網目に沿って両面に接着剤を塗布したネットを重ね合わせ、更にネットの表面にシート状の通気性素材を重ね合わせて作製される。上記通気性素材は、ウレタンフォーム、再生フェルト等により形成され、ネットは、綿や麻等の天然繊維、或いはナイロン、ポリエステル等の化学繊維をネット状に編み込んだものや、各種のプラスチックフィルムをネット状に打抜いたり、熱溶着したものにより形成される。このように構成された通気性部材では、接着剤層がネットの網目部分に限定されるため、接着剤層によって素材の通気孔が塞がれることなく、他の部材と接合した場合にも素材が本来持つ通気性を確保できるようになっている。   Conventionally, this type of adhesive sheet has an adhesive layer formed on both sides of the net by means of application, impregnation, spraying, etc., and the net is adhered to the surface of the breathable material by the adhesive layer on one side Further, there is disclosed a breathable member in which the surface of the net that is not bonded to the breathable material is covered with a release paper such as a separate paper or a plastic film impregnated with a silicon resin by an adhesive layer on the other side. (For example, refer to Patent Document 1). This air-permeable member is overlapped on the surface of the release paper that has been pulled out from the roll and conveyed by a conveyor, etc. Further, it is manufactured by superposing a sheet-like breathable material on the surface of the net. The breathable material is made of urethane foam, recycled felt, etc. The net is made of natural fibers such as cotton and linen, or chemical fibers such as nylon and polyester, and various plastic films. It is formed by punching into a shape or heat welding. In the breathable member configured in this way, since the adhesive layer is limited to the net portion of the net, the material layer can be used even when it is joined to other members without blocking the vent hole of the material by the adhesive layer. It is designed to ensure the breathability inherent to the.

実開平７−２０４８号公報（段落［００１２］、［００１７］、［００１８］、［００１９］）Japanese Utility Model Publication No. 7-2048 (paragraphs [0012], [0017], [0018], [0019])

しかし、上記従来の特許文献１に示された通気性部材では、この部材に通気性を持たせるべく、接着剤層がネットの網の周囲にのみ形成されているけれども、ネットの網目（網で囲まれた隙間）の部分に形成されていないため、通気性部材の他の部材への接着力が不十分となり、通気性部材が剥がれ易い問題点があった。また上記従来の特許文献１に示された通気性部材では、ネットの両面に糊付け装置により接着剤を塗布しているため、糊付け装置が複雑になる問題点があった。   However, in the breathable member disclosed in Patent Document 1 above, the adhesive layer is formed only around the net of the net in order to make this member breathable. Since it is not formed in the part of the enclosed gap), there is a problem in that the adhesive force to the other member of the breathable member becomes insufficient and the breathable member is easily peeled off. Further, the breathable member disclosed in the above-described conventional patent document 1 has a problem that the gluing device becomes complicated because the adhesive is applied to both sides of the net by the gluing device.

本発明の目的は、他の部材への接着力を低下させず、かつ発泡性基材の寸法安定性に優れ、更に粘着剤の塗布装置を単純化できる、粘着シート及びその製造方法を提供することにある。本発明の別の目的は、剥離フィルム又は発泡性基材の一方の面に粘着剤を塗布するだけで、剥離フィルム、フィルム側粘着剤層、ネット、基材側粘着剤層及び発泡性基材の積層体からなる粘着シートを製造できる、粘着シートの製造方法を提供することにある。   An object of the present invention is to provide a pressure-sensitive adhesive sheet and a method for producing the same, which do not reduce the adhesive strength to other members, are excellent in dimensional stability of the foamable base material, and can further simplify the pressure-sensitive adhesive coating apparatus. There is. Another object of the present invention is to apply a pressure-sensitive adhesive to one surface of a release film or a foamable substrate, and to release a film, a film-side pressure-sensitive adhesive layer, a net, a substrate-side pressure-sensitive adhesive layer, and a foamable base material. It is providing the manufacturing method of an adhesive sheet which can manufacture the adhesive sheet which consists of this laminated body.

本発明の第１の観点は、図１〜図３に示すように、剥離フィルム１１と、この剥離フィルム１１に剥離可能に積層接着されたフィルム側粘着剤層(12)と、このフィルム側粘着剤層１２に一方の面が積層接着されたネット１３と、このネット１３の他方の面に基材側粘着剤層１４を介して積層接着され伸張性及び可撓性のある発泡性基材１６とを備えた粘着シートにおいて、フィルム側粘着剤層１２が剥離フィルム１１の一方の面全体に塗布されてネット１３の網目１３ｃを塞ぐとともに、フィルム側粘着剤層１２のうちネット１３の網目１３ｃから発泡性基材１６側にはみ出した粘着剤２１により基材側粘着剤層１４が構成されたことを特徴とする。   As shown in FIGS. 1 to 3, the first aspect of the present invention is a release film 11, a film-side pressure-sensitive adhesive layer (12) laminated and adhered to the release film 11 so as to be peelable, and the film-side adhesive. A net 13 having one surface laminated and adhered to the agent layer 12, and a foamable base material 16 which is laminated and adhered to the other surface of the net 13 via a substrate-side pressure-sensitive adhesive layer 14 and is extensible and flexible. The film-side pressure-sensitive adhesive layer 12 is applied to the entire surface of the release film 11 to close the mesh 13c of the net 13, and the film-side pressure-sensitive adhesive layer 12 from the net 13c of the net 13 The substrate-side pressure-sensitive adhesive layer 14 is constituted by the pressure-sensitive adhesive 21 that protrudes toward the foamable substrate 16 side.

本発明の第２の観点は、伸張性及び可撓性のある発泡性基材と、この発泡性基材に基材側粘着剤層を介して一方の面が積層接着されたネットと、このネットの他方の面に積層接着されたフィルム側粘着剤層と、このフィルム側粘着剤層に積層接着された剥離フィルムとを備えた粘着シートにおいて、基材側粘着剤層が発泡性基材の一方の面全体に塗布されてネットの網目を塞ぐとともに、基材側粘着剤層のうちネットの網目から剥離フィルム側にはみ出した粘着剤によりフィルム側粘着剤層が構成されたことを特徴とする。   The second aspect of the present invention is a stretchable and flexible foamable substrate, a net having one surface laminated and bonded to the foamable substrate via a substrate-side pressure-sensitive adhesive layer, In a pressure-sensitive adhesive sheet comprising a film-side pressure-sensitive adhesive layer laminated and bonded to the other surface of the net and a release film laminated and bonded to the film-side pressure-sensitive adhesive layer, the substrate-side pressure-sensitive adhesive layer is made of a foamable substrate. The film-side pressure-sensitive adhesive layer is composed of a pressure-sensitive adhesive that is applied to the entire surface of the one side and closes the net of the net, and that protrudes from the net of the base to the release film side. .

本発明の第３の観点は、図１〜図３に示すように、剥離フィルム１１の一方の面全体に粘着剤２１を塗布して剥離フィルム１１にフィルム側粘着剤層１２を積層接着する工程と、このフィルム側粘着剤層１２にネット１３の一方の面を積層接着する工程と、フィルム側粘着剤層１２のうちネット１３の一方の面から他方の面にはみ出した粘着剤２１を基材側粘着剤層１４としこの基材側粘着剤層１４に伸張性及び可撓性のある発泡性基材１６を積層接着する工程とを含む粘着シートの製造方法である。   As shown in FIGS. 1 to 3, the third aspect of the present invention is a process of applying a pressure-sensitive adhesive 21 to one whole surface of the release film 11 and laminating and bonding the film-side pressure-sensitive adhesive layer 12 to the release film 11. And a step of laminating and adhering one surface of the net 13 to the film-side pressure-sensitive adhesive layer 12, and a pressure-sensitive adhesive 21 protruding from one surface of the net 13 in the film-side pressure-sensitive adhesive layer 12 to the other surface. And a step of laminating and bonding a stretchable and flexible foamable base material 16 to the base-side pressure-sensitive adhesive layer 14 as a side pressure-sensitive adhesive layer 14.

本発明の第４の観点は、伸張性及び可撓性のある発泡性基材の一方の面全体に基材側粘着剤層となる粘着剤を塗布する工程と、発泡性基材の一方の面に基材側粘着剤層を介してネットの一方の面を積層接着する工程と、基材側粘着剤層のうちネットの一方の面から他方の面にはみ出した粘着剤をフィルム側粘着剤層としこのフィルム側粘着剤層に剥離フィルムを剥離可能に積層接着する工程とを含む粘着シートの製造方法である。   According to a fourth aspect of the present invention, there is provided a step of applying a pressure-sensitive adhesive serving as a substrate-side pressure-sensitive adhesive layer to one whole surface of a stretchable and flexible foamable substrate, and one of the foamable substrates. Laminating and adhering one surface of the net to the surface via the substrate-side pressure-sensitive adhesive layer, and the film-side pressure-sensitive adhesive that protrudes from one surface of the net to the other surface of the substrate-side pressure-sensitive adhesive layer And a step of laminating and bonding the release film to the film-side pressure-sensitive adhesive layer in a peelable manner.

本発明の第１の観点の粘着シートでは、剥離フィルムにフィルム側粘着剤層を剥離可能に積層接着し、このフィルム側粘着剤層にネットを積層接着することにより、フィルム側粘着剤層がネットの網目を塞ぐとともに、フィルム側粘着剤層のうちネットの網目から発泡性基材側にはみ出した粘着剤により基材側粘着剤層を構成したので、粘着シートの他の部材への接着力を低下させることがなく、かつフィルム側粘着剤層及び基材側粘着剤層となる粘着剤の塗布装置を単純化できる。またネットにより発泡性基材の伸張性が抑制されるので、発泡性基材の寸法安定性に優れ、粘着シートの他の部材への貼付作業を極めて容易に行うことができる。   In the pressure-sensitive adhesive sheet according to the first aspect of the present invention, 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. In addition, 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 network to the foamable base-material side. It is possible to simplify the applicator for the pressure-sensitive adhesive that does not decrease and becomes the film-side pressure-sensitive adhesive layer and the substrate-side pressure-sensitive adhesive layer. Moreover, since 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 | work to the other member of an adhesive sheet can be performed very easily.

本発明の第２の観点の粘着シートでは、基材側粘着剤層が発泡性基材の一方の面全体に塗布されてネットの網目を塞ぐとともに、基材側粘着剤層のうちネットの網目から剥離フィルム側にはみ出した粘着剤によりフィルム側粘着剤層を構成したので、粘着シートの他の部材への接着力を低下させることがなく、かつ基材側粘着剤層及びフィルム側粘着剤層となる粘着剤の塗布装置を単純化できる。またネットにより発泡性基材の伸張性が抑制されるので、発泡性基材の寸法安定性に優れ、粘着シートの他の部材への貼付作業を極めて容易に行うことができる。   In the pressure-sensitive adhesive sheet according to the second aspect of the present invention, the base material-side pressure-sensitive adhesive layer is applied to the entire one surface of the foamable base material to close the net network, and among the base-material-side pressure-sensitive adhesive layer, the net mesh Since the film-side pressure-sensitive adhesive layer is composed of the pressure-sensitive adhesive that protrudes from the release film side, the adhesive force to other members of the pressure-sensitive adhesive sheet is not reduced, and the base-side pressure-sensitive adhesive layer and the film-side pressure-sensitive adhesive layer The pressure-sensitive adhesive coating apparatus can be simplified. Moreover, since 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 | work to the other member of an adhesive sheet can be performed very easily.

本発明の第３の観点の製造方法では、剥離フィルムの一方の面全体にフィルム側粘着剤層となる粘着剤を塗布し、この上にネットを積層接着し、更にフィルム側粘着剤層のうちネットの一方の面から他方の面にはみ出した粘着剤を基材側粘着剤層としこの基材側粘着剤層に発泡性基材を積層接着したので、粘着剤をネットの両面に塗布することなく、剥離フィルムの一方の面に塗布するだけで、剥離フィルム、フィルム側粘着剤層、ネット、基材側粘着剤層及び発泡性基材の積層体からなる粘着シートを製造できる。この結果、粘着シートの製造工程における粘着剤の塗布装置を単純化できる。   In the manufacturing method of the 3rd viewpoint of this invention, the adhesive which becomes a film side adhesive layer is apply | coated to the whole one side of a peeling film, a net | network is laminated | stacked on this, and also among film side adhesive layers Since the adhesive that protrudes from one side of the net to the other side is the base side adhesive layer, and the foamable base material is laminated and adhered to this base side adhesive layer, apply the adhesive to both sides of the net However, the adhesive sheet which consists of a laminated body of a peeling film, a film side adhesive layer, a net | network, a base material side adhesive layer, and a foamable base material can be manufactured only by apply | coating to one surface of a peeling film. As a result, the pressure-sensitive adhesive coating apparatus in the pressure-sensitive adhesive sheet manufacturing process can be simplified.

本発明の第４の観点の製造方法では、発泡性基材の一方の面全体に基材側粘着剤層となる粘着剤を塗布し、この上にネットを積層接着し、更に基材側粘着剤層のうちネットの一方の面から他方の面にはみ出した粘着剤をフィルム側粘着剤層としこのフィルム側粘着剤層に剥離フィルムを剥離可能に積層接着したので、粘着剤をネットの両面に塗布することなく、発泡性基材の一方の面に塗布するだけで、発泡性基材、基材側粘着剤層、ネット、フィルム側粘着剤層及び剥離フィルムの積層体からなる粘着シートを製造できる。この結果、粘着シートの製造工程における粘着剤の塗布装置を単純化できる。   In the manufacturing method of the 4th viewpoint of this invention, the adhesive which becomes a base material side adhesive layer is apply | coated to one whole surface of a foamable base material, a net | network is laminated | stacked on this, and also base material side adhesive Since the adhesive that protrudes from one side of the net to the other side of the adhesive layer is used as the film side adhesive layer and the release film is peeled and laminated to the film side adhesive layer, the adhesive is applied to both sides of the net. Without applying, just apply to one side of the expandable substrate to produce an adhesive sheet consisting of a laminate of expandable substrate, substrate-side adhesive layer, net, film-side adhesive layer and release film it can. As a result, the pressure-sensitive adhesive coating apparatus in the pressure-sensitive adhesive sheet manufacturing process can be simplified.

本発明の第１実施形態の粘着シートを示す断面構成図である。It is a section lineblock diagram showing the adhesive sheet of a 1st embodiment of the present invention. その粘着シートに用いられるネットの一部分を示す平面図である。It is a top view which shows a part of net | network used for the adhesive sheet. その粘着シートを製造する工程を示す製造装置の構成図である。It is a block diagram of the manufacturing apparatus which shows the process of manufacturing the adhesive sheet. 本発明の第２実施形態のネットの一部分を示す平面図である。It is a top view which shows a part of net | network of 2nd Embodiment of this invention.

次に本発明を実施するための形態を図面に基づいて説明する。
＜第１の実施の形態＞
図１に示すように、粘着シート１０は、剥離フィルム１１と、この剥離フィルム１１に剥離可能に積層接着されたフィルム側粘着剤層１２と、このフィルム側粘着剤層１２に一方の面が積層接着されたネット１３と、このネット１３の他方の面に基材側粘着剤層１４を介して積層接着された発泡性基材１６とを備える。剥離フィルム１１は、図示しないがフィルム側粘着剤層１２が積層接着される面に目止め剤層を介してシリコーン系の剥離剤層を形成した紙やポリプロピレン等により構成される。剥離フィルム１１は剥離剤層の存在によりフィルム側粘着剤層１２から容易に剥がれるようになっている。ネット１３は、図２に詳しく示すように、ポリエチレン、ポリプロピレン等のポリオレフィン、ポリエチレンテレフタレート、ポリアミド、ポリビニルアルコール、ポリアクリロニトリル、ポリウレタン、含ハロゲン系ポリマー等の合成繊維、木綿、麻、絹等のセルロース系繊維、及びガラス繊維、金属メッシュ等の無機繊維からなる縦糸１３ａ及び横糸１３ｂを格子状に編むか若しくは配索した後にこれらの糸１３ａ，１３ｂの交点を互いに熱融着することにより網状に形成されるか、ポリエチレン、ポリプロピレン等のポリオレフィン、ポリエチレンテレフタレート、ポリアミド、ポリビニルアルコール、ポリアクリロニトリル、ポリウレタン、含ハロゲン系ポリマー等の合成樹脂を溶融させて格子状の型に流込んで成形することにより網状に形成されるか、或いはポリエチレン、ポリプロピレン等のポリオレフィン、ポリエチレンテレフタレート、ポリアミド、ポリビニルアルコール、ポリアクリロニトリル、ポリウレタン、含ハロゲン系ポリマー等の合成樹脂製のシートをプレス機により打抜くことにより網状に形成される。また上記合成樹脂製のネット１３は縦糸１３ａの長手方向或いは横糸１３ｂの長手方向の少なくとも一方の伸び率が、ＪＩＳ Ｌ １０９６に準拠した方法で８０％以下、好ましくは５０％以下になるように構成される。更にネット１３を構成する縦糸１３ａ及び横糸１３ｂの太さＤは１．０ｍｍ以下、好ましくは１００μｍ〜０．５ｍｍであり、ネット１３の目合い（縦糸１３ａ及び横糸１３ｂが作り出す隙間（矩形の網目１３ｃ）の横方向の距離及び縦方向の距離、目開きともいう）Ｐは１〜５０ｍｍ、好ましくは３〜１０ｍｍの範囲に設定される。ここで、ネット１３の縦糸１３ａ及び横糸１３ｂの太さを１．０ｍｍ以下に限定したのは、１．０ｍｍを超えると粘着剤表面からネットが盛り上がり過ぎて、粘着性能が極端に低下するためである。またネット１３の目開きＰを１〜５０ｍｍの範囲内に限定したのは、１ｍｍ未満では粘着剤２１（図３）がネット１３の網目１３ｃに侵入し難くなり、５０ｍｍを超えると発泡性基材１６の寸法安定性が低下するからである。 Next, an embodiment for carrying out the present invention will be described with reference to the drawings.
<First Embodiment>
As shown in FIG. 1, the pressure-sensitive adhesive sheet 10 includes a release film 11, a film-side pressure-sensitive adhesive layer 12 that is laminated and adhered to the release film 11 in a peelable manner, and one surface laminated on the film-side pressure-sensitive adhesive layer 12. A net 13 that is bonded and a foamable base material 16 that is laminated and bonded to the other surface of the net 13 via a base material-side pressure-sensitive adhesive layer 14 are provided. Although not shown, the release film 11 is composed of paper, polypropylene, or the like in which a silicone-based release agent layer is formed on the surface to which the film-side pressure-sensitive adhesive layer 12 is laminated and bonded. The release film 11 is easily peeled off from the film-side pressure-sensitive adhesive layer 12 due to the presence of the release agent layer. As shown in detail in FIG. 2, the net 13 is made of a polyolefin such as polyethylene or polypropylene, polyethylene terephthalate, polyamide, polyvinyl alcohol, polyacrylonitrile, polyurethane, or a synthetic fiber such as halogen-containing polymer, or cellulose such as cotton, hemp, or silk. A warp 13a and a weft 13b made of inorganic fibers such as fiber, glass fiber, and metal mesh are knitted or arranged in a lattice shape, and then the intersections of these yarns 13a and 13b are heat-sealed to each other to form a mesh. Or by melting synthetic resins such as polyethylene, polypropylene, and other polyolefins, polyethylene terephthalate, polyamide, polyvinyl alcohol, polyacrylonitrile, polyurethane, halogen-containing polymers, etc., and pouring them into a lattice mold Or formed into a net by punching a sheet made of synthetic resin such as polyolefin such as polyethylene and polypropylene, polyethylene terephthalate, polyamide, polyvinyl alcohol, polyacrylonitrile, polyurethane and halogen-containing polymer with a press. Is done. The net 13 made of synthetic resin is configured such that the elongation percentage of at least one of the longitudinal direction of the warp yarn 13a or the longitudinal direction of the weft yarn 13b is 80% or less, preferably 50% or less by a method according to JIS L1096. Is done. Further, the thickness D of the warp yarn 13a and the weft yarn 13b constituting the net 13 is 1.0 mm or less, preferably 100 μm to 0.5 mm, and the mesh of the net 13 (the gap created by the warp yarn 13a and the weft yarn 13b (rectangular mesh 13c P) is also set in the range of 1 to 50 mm, preferably 3 to 10 mm. Here, the reason why the thickness of the warp 13a and the weft 13b of the net 13 is limited to 1.0 mm or less is that if the thickness exceeds 1.0 mm, the net rises too much from the adhesive surface, and the adhesive performance is extremely lowered. is there. Moreover, the opening P of the net 13 is limited to the range of 1 to 50 mm because the adhesive 21 (FIG. 3) is less likely to enter the net 13 c of the net 13 if it is less than 1 mm, and the foamable base material if it exceeds 50 mm. This is because the dimensional stability of 16 decreases.

フィルム側粘着剤層１２及び基材側粘着剤層１４の原料となる粘着剤２１（図３）としては、加熱下において粘着性を示しかつ室温において優れた接着性を発揮するＥＶＡ系ホットメルト型接着剤、ゴム系ホットメルト型接着剤、アクリルエマルジョン、ＥＶＡエマルジョン、ＳＢＲエマルジョン、酢酸ビニル系エマルジョン等の水性粘着剤、及びアクリル系、ＥＶＡ系、ＳＢＲ系、酢酸ビニル系等の溶剤系粘着剤などが用いられる。また発泡性基材１６としては、伸張性及び可撓性を有するＥＰＤＭ（Ethylene Propylene Diene Terpolymer）フォーム、ウレタンフォーム、ポリエチレンフォーム等が用いられる。上記フィルム側粘着剤層１２は剥離フィルム１１の一方の面全体に塗布されてネット１３の網目１３ｃを塞ぐとともに、フィルム側粘着剤層１２のうちネット１３の網目１３ｃから発泡性基材１６側にはみ出した粘着剤２１（図３）により基材側粘着剤層１４が構成される。   As the pressure-sensitive adhesive 21 (FIG. 3) as a raw material for the film-side pressure-sensitive adhesive layer 12 and the substrate-side pressure-sensitive adhesive layer 14, an EVA hot melt type that exhibits pressure-sensitive adhesiveness under heating and exhibits excellent adhesion at room temperature. Adhesives, rubber-based hot-melt adhesives, aqueous adhesives such as acrylic emulsion, EVA emulsion, SBR emulsion, vinyl acetate emulsion, and solvent-based adhesives such as acrylic, EVA, SBR, and vinyl acetate Is used. Further, as the foamable substrate 16, EPDM (Ethylene Propylene Diene Terpolymer) foam, urethane foam, polyethylene foam or the like having extensibility and flexibility is used. The film-side pressure-sensitive adhesive layer 12 is applied to one entire surface of the release film 11 to block the mesh 13c of the net 13, and in the film-side pressure-sensitive adhesive layer 12, from the net 13c of the net 13 to the foamable substrate 16 side. The base material side adhesive layer 14 is constituted by the protruding adhesive 21 (FIG. 3).

このように構成された粘着シート１０の一例としてホットメルト系粘着剤シートの製造方法を図１〜図３に基づいて説明する。先ず剥離フィルム１１の一方の面全体に粘着剤２１を塗布する。次に剥離フィルム１１の一方の面、即ち粘着剤２１が塗布された面に、ネット１３を重ねる。これによりフィルム側粘着剤層１２が剥離フィルム１１に剥離可能に積層接着されるとともに、ネット１３の一方の面がフィルム側粘着剤層１２に積層接着される。そして上記フィルム側粘着剤層１２のうちネット１３の一方の面から網目１３ｃを通ってネット１３の他方の面にはみ出す。この状態でネット１３の他方の面に発泡性基材１６を重ねる。これにより上記ネット１３の他方の面にはみ出した粘着剤２１を基材側粘着剤層１４としこの基材側粘着剤層１４に発泡性基材１６が積層接着され、粘着シート１０を得た。このように粘着剤２１をネット１３の両面に塗布することなく、剥離フィルム１１の一方の面に塗布するだけで、剥離フィルム１１、フィルム側粘着剤層１２、ネット１３、基材側粘着剤層１４及び発泡性基材１６の積層体からなる粘着シート１０を製造できる。この結果、粘着シート１０の製造工程における粘着剤２１の塗布装置を単純化できる。   As an example of the pressure-sensitive adhesive sheet 10 configured as described above, a method for producing a hot-melt pressure-sensitive adhesive sheet will be described with reference to FIGS. First, the adhesive 21 is applied to the entire one surface of the release film 11. Next, the net 13 is overlapped on one surface of the release film 11, that is, the surface to which the adhesive 21 is applied. As a result, the film-side pressure-sensitive adhesive layer 12 is laminated and adhered to the release film 11 so as to be peelable, and one surface of the net 13 is laminated and adhered to the film-side pressure-sensitive adhesive layer 12. The film-side pressure-sensitive adhesive layer 12 protrudes from one surface of the net 13 to the other surface of the net 13 through the mesh 13c. In this state, the foamable substrate 16 is overlaid on the other surface of the net 13. As a result, the pressure-sensitive adhesive 21 that protruded from the other surface of the net 13 was used as the base-side pressure-sensitive adhesive layer 14, and the foamable base material 16 was laminated and bonded to the base-side pressure-sensitive adhesive layer 14 to obtain the pressure-sensitive adhesive sheet 10. Thus, without applying the adhesive 21 to both sides of the net 13, the release film 11, the film-side pressure-sensitive adhesive layer 12, the net 13, and the substrate-side-side pressure-sensitive adhesive layer can be applied only to one surface of the release film 11. 14 and the adhesive sheet 10 which consists of a laminated body of the foamable base material 16 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.

このように製造された粘着シート１０では、剥離フィルム１１にフィルム側粘着剤層１２を剥離可能に積層接着し、このフィルム側粘着剤層１２にネット１３を積層接着することにより、フィルム側粘着剤層１２がネット１３の網目を塞ぐとともに、フィルム側粘着剤層１２のうちネット１３の網目１３ｃから発泡性基材１６側にはみ出した粘着剤２１を基材側粘着剤層１４とし、この基材側粘着剤層１４に発泡性基材１６を積層接着したので、粘着シート１０の他の部材への接着力を低下させることがなく、かつフィルム側粘着剤層１２及び基材側粘着剤層１４となる粘着剤２１の塗布装置を単純化できる。またネット１３により発泡性基材１６の伸張性が抑制されるので、発泡性基材１６の寸法安定性に優れ、粘着シート１０の他の部材への貼付作業を極めて容易に行うことができる。   In the pressure-sensitive adhesive sheet 10 thus manufactured, the film-side pressure-sensitive adhesive layer 12 is laminated and adhered to the release film 11 so that the film-side pressure-sensitive adhesive layer 12 is peelable, and the net 13 is laminated and adhered to the film-side pressure-sensitive adhesive layer 12. The layer 12 closes the mesh of the net 13, and the adhesive 21 that protrudes from the mesh 13c of the net 13 to the foamable substrate 16 side of the film-side adhesive layer 12 is used as the substrate-side adhesive layer 14, and this substrate Since the foamable base material 16 is laminated and bonded to the side pressure-sensitive adhesive layer 14, the adhesive force to the other members of the pressure-sensitive adhesive sheet 10 is not reduced, and the film-side pressure-sensitive adhesive layer 12 and the base-material-side pressure-sensitive adhesive layer 14 are not reduced. The application | coating apparatus of the adhesive 21 used as follows can be simplified. Moreover, since the extensibility of the foamable base material 16 is suppressed by the net 13, it is excellent in the dimensional stability of the foamable base material 16, and the sticking operation | work to the other member of the adhesive sheet 10 can be performed very easily.

＜第２の実施の形態＞
図４は本発明の第２の実施の形態を示す。この実施の形態では、ネット５３が矩形の網目を有する格子状ではなく、矩形の網目５３ｃを有する格子状の２枚のネットを所定の角度θ、例えば２〜４３度、好ましくは５〜４０度ずらした状態で熱融着して、矩形の網目５３ｃを所定の角度ずらした２重の網目状に形成される。具体的には、延伸強化されたポリオレフィン等のプラスチックの割繊維５３ａを、縦、横及び斜めに連続的に積層した後に熱融着することにより形成される。なお、３枚以上の矩形の網目を有する格子状のネットを所定の角度だけずらした状態で熱融着することによりネットを形成してもよく、或いは所定の型に流込んで１回の成形で矩形の網目を所定の角度ずらした２重又は３重以上の網目状にネットを形成してもよい。上記以外の粘着シートの構成は第１の実施の形態と同一であり、この粘着シートの製造方法も第１の実施の形態と同一である。このように構成された粘着シートでは、ネット５３の割繊維５３ａの延びる方向が増えてそれらの方向へのネット５３の変形が阻止されるので、第１の実施の形態より寸法安定性を向上できる。上記以外の動作は第１の実施の形態の動作と略同様であるので、繰返しの説明を省略する。 <Second Embodiment>
FIG. 4 shows a second embodiment of the present invention. In this embodiment, the net 53 is not a lattice having a rectangular mesh, but two lattice-shaped nets having a rectangular mesh 53c are arranged at a predetermined angle θ, for example, 2 to 43 degrees, preferably 5 to 40 degrees. The rectangular mesh 53c is formed in a double mesh shape shifted by a predetermined angle by heat fusion in a shifted state. Specifically, the split fibers 53a made of stretched plastic such as polyolefin are continuously laminated in the vertical, horizontal and diagonal directions, and then heat-sealed. The net may be formed by heat-sealing a grid-like net having three or more rectangular meshes shifted by a predetermined angle, or poured into a predetermined mold and formed once. In this case, the net may be formed in a double or triple mesh shape with a rectangular mesh shifted by a predetermined angle. The configuration of the pressure-sensitive adhesive sheet other than the above is the same as that of the first embodiment, and the method of manufacturing this pressure-sensitive adhesive sheet is also the same as that of the first embodiment. In the pressure-sensitive adhesive sheet configured as described above, the extending direction of the split fibers 53a of the net 53 is increased, and deformation of the net 53 in those directions is prevented. Therefore, the dimensional stability can be improved as compared with the first embodiment. . Since the operation other than the above is substantially the same as the operation of the first embodiment, repeated description will be omitted.

なお、上記第１及び第２の実施の形態では、剥離フィルムの上に、フィルム側粘着剤層、ネット、基材側粘着剤層及び発泡性基材をこの順に積層接着したが、発泡性基材の上に、基材側粘着剤層、ネット、フィルム側粘着剤層及び剥離フィルムをこの順に積層接着してもよい。この場合、基材側粘着剤層が発泡性基材の一方の面全体に塗布されてネットの網目を塞ぐとともに、基材側粘着剤層のうちネットの網目から剥離フィルム側にはみ出した粘着剤によりフィルム側粘着剤層が構成される。またこの粘着シートは、発泡性基材の一方の面全体に基材側粘着剤層となる粘着剤を塗布し、この上にネットを積層接着し、更に基材側粘着剤層のうちネットの一方の面から他方の面にはみ出した粘着剤をフィルム側粘着剤層とし、このフィルム側粘着剤層に剥離フィルムを剥離可能に積層接着することにより作製される。   In the first and second embodiments, the film-side pressure-sensitive adhesive layer, the net, the base-side pressure-sensitive adhesive layer, and the foamable base material are laminated and adhered in this order on the release film. On the material, a substrate-side pressure-sensitive adhesive layer, a net, a film-side pressure-sensitive adhesive layer, and a release film may be laminated and bonded in this order. In this case, the base material-side pressure-sensitive adhesive layer is applied to one entire surface of the foamable base material to close the net network, and the base-material-side pressure-sensitive adhesive layer protrudes from the net network to the release film side. Thus, the film side pressure-sensitive adhesive layer is constituted. In addition, this pressure-sensitive adhesive sheet is obtained by applying a pressure-sensitive adhesive serving as a substrate-side pressure-sensitive adhesive layer to one whole surface of the foamable substrate, laminating and bonding the net thereon, and further forming the net of the substrate-side pressure-sensitive adhesive layer. The pressure-sensitive adhesive protruding from one surface to the other surface is used as a film-side pressure-sensitive adhesive layer, and the release film is laminated and adhered to the film-side pressure-sensitive adhesive layer in a peelable manner.

次に本発明の実施例を比較例とともに詳しく説明する。
＜実施例１＞
図１〜図３に示すように、先ず剥離フィルム１１の一方の面全体に粘着剤２１（光洋産業株式会社製のエマルジョン型アクリル系粘着剤：ＫＲ１５９）を塗布厚７５μｍ（乾燥状態）で剥離可能に塗布した。次いで剥離フィルム１１の一方の面にネット１３（新日石プラスト株式会社製のコンウェッドネットＲ０３６５０、材質：ポリプロピレン、縦糸及び横糸の太さ１３０μｍ、目合い（目開き）４ｍｍ×４ｍｍ）を重ねた。これによりフィルム側粘着剤層１２が剥離フィルム１１に剥離可能に積層接着されるとともに、ネット１３の一方の面がフィルム側粘着剤層１２に積層接着された。次に上記フィルム側粘着剤層１２のうちネット１３の一方の面から網目１３ａを通ってネット１３の他方の面にはみ出した基材側粘着剤層１４に発泡性基材１６（ＥＰＤＭフォーム）を重ねて、基材側粘着剤層１４に発泡性基材１６を積層接着した。更にこの積層体を１２０℃の温度で３分間保持して粘着剤２１を乾燥させることにより粘着シート１０を得た。この粘着シート１０を実施例１とした。 Next, examples of the present invention will be described in detail together with comparative examples.
<Example 1>
As shown in FIGS. 1 to 3, first, an adhesive 21 (emulsion acrylic adhesive manufactured by Koyo Sangyo Co., Ltd .: KR159) can be peeled off on one side of the release film 11 with a coating thickness of 75 μm (dry state). It was applied to. Next, a net 13 (Nippon Plast Co., Ltd. Conweed Net R03650, material: polypropylene, warp and weft thickness 130 μm, mesh (opening) 4 mm × 4 mm) is superimposed on one surface of the release film 11. It was. As a result, the film-side pressure-sensitive adhesive layer 12 was laminated and adhered to the release film 11 in a peelable manner, and one surface of the net 13 was laminated and adhered to the film-side pressure-sensitive adhesive layer 12. Next, the foamable base material 16 (EPDM foam) is applied to the base-side pressure-sensitive adhesive layer 14 that protrudes from one surface of the net 13 through the mesh 13a to the other surface of the net 13 in the film-side pressure-sensitive adhesive layer 12. The foamable substrate 16 was laminated and adhered to the substrate-side pressure-sensitive adhesive layer 14 in a stacked manner. Furthermore, this laminated body was hold | maintained for 3 minutes at the temperature of 120 degreeC, and the adhesive sheet 10 was obtained by drying the adhesive 21. FIG. This pressure-sensitive adhesive sheet 10 was taken as Example 1.

＜実施例２＞
ネットとして、新日石プラスト株式会社製のワリフ３Ｓ(Ｔ)を用いたこと以外は、実施例１と同様にして粘着シートを作製した。この粘着シートを実施例２とした。ここで、新日石プラスト株式会社製のワリフ３Ｓ(Ｔ)は、延伸強化されたポリオレフィンの割繊維を、縦、横及び斜めに連続的に積層した後に熱融着することにより形成される。
＜比較例１＞
ネットを用いなかったこと以外は、実施例１と同様にして粘着シートを作製した。この粘着シートを比較例１とした。 <Example 2>
A pressure-sensitive adhesive sheet was produced in the same manner as in Example 1, except that Warif 3S (T) manufactured by Nippon Oil Plastic Co., Ltd. was used as the net. This pressure-sensitive adhesive sheet was referred to as Example 2. Here, Warif 3S (T) manufactured by Nippon Oil Plastics Co., Ltd. is formed by heat-sealing stretched and reinforced polyolefin split fibers continuously in the vertical, horizontal and diagonal directions.
<Comparative Example 1>
A pressure-sensitive adhesive sheet was produced in the same manner as in Example 1 except that the net was not used. This adhesive sheet was referred to as Comparative Example 1.

＜比較試験１及び評価＞
実施例１、実施例２及び比較例１の粘着シートについて、１８０°ピーリング試験、タック試験、保持試験（ＪＩＳ Ｚ ０２３７に準拠）及び伸び率試験をそれぞれ実施した。１８０度ピーリング試験はＪＩＳ Ｚ ０２３７に準拠して次のように行った。先ず剥離フィルムを除去した粘着シートをＳＵＳ３０４の被着体に貼付け、２ｋｇのゴムローラを１往復させて圧着した。次に室温で１時間養生した後に、３００ｍｍ／分のスピードで粘着シートを被着体から引き剥がして、引き剥がした粘着シートの状況を検査した。またタック試験は株式会社東洋精機製作所製のタックテスターを用いて行った。また保持試験はつぎのようにして行った。先ず剥離フィルムを除去した粘着シートをＳＵＳ３０４の被着体に貼付け、２ｋｇのゴムローラを１往復させて圧着した。次に室温で１時間養生した後に、室温（２０〜２３℃）で粘着シートに５００ｇの荷重をかけて、被着体から剥がれた粘着シートの長さを測定した。更に伸び率試験はＪＩＳ Ｋ ６４００に規定する軟質ウレタンフォーム試験（１号形）に準拠して行った。その結果を表１に示す。なお、表１において、１８０°ピーリング試験は粘着シートが被着体から引き剥がれたときの強度を示し、伸び率試験のかっこ内の数値は伸び率測定時の最大荷重を示す。 <Comparative test 1 and evaluation>
About the adhesive sheet of Example 1, Example 2, and Comparative Example 1, the 180 degree peeling test, the tack test, the holding test (based on JIS Z 0237) and the elongation test were carried out. The 180 degree peeling test was performed as follows based on JIS Z 0237. First, the pressure-sensitive adhesive sheet from which the release film was removed was attached to an adherend of SUS304, and a 2 kg rubber roller was reciprocated once for pressure bonding. Next, 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 state of the peeled pressure-sensitive adhesive sheet was examined. The tack test was performed using a tack tester manufactured by Toyo Seiki Seisakusho. The holding test was conducted as follows. First, the pressure-sensitive adhesive sheet from which the release film was removed was attached to an adherend of SUS304, and a 2 kg rubber roller was reciprocated once for pressure bonding. Next, after curing at room temperature for 1 hour, a load of 500 g was applied to the pressure-sensitive adhesive sheet at room temperature (20 to 23 ° C.), and the length of the pressure-sensitive adhesive sheet peeled off from the adherend was measured. Further, the elongation test was performed in accordance with a flexible urethane foam test (No. 1 type) specified in JIS K 6400. The results are shown in Table 1. In Table 1, the 180 ° peeling test indicates the strength when the adhesive sheet is peeled off from the adherend, and the numerical value in the parentheses of the elongation test indicates the maximum load when measuring the elongation.

Figure 2009280796
表１から明らかなように、ネットを用いなかった比較例１では伸び率が５５５％を大きかったのに対し、ネットを用いた実施例１及び２では伸び率が７５％及び６４％と小さくなった。この結果、比較例１より実施例１及び２の方が寸法安定性に優れていることが分かった。なお、ピーリング試験、タック試験及び保持試験において実施例１及び２の粘着シートは比較例１の粘着シートと同等の性能を示した。
Figure 2009280796
 As is clear from Table 1, the elongation rate in Comparative Example 1 that did not use a net was as high as 555%, whereas in Examples 1 and 2 that used a net, the elongation rate decreased to 75% and 64%. It was. As a result, it was found that Examples 1 and 2 were more excellent in dimensional stability than Comparative Example 1. In the peeling test, the tack test, and the holding test, the pressure-sensitive adhesive sheets of Examples 1 and 2 exhibited the same performance as the pressure-sensitive adhesive sheet of Comparative Example 1.

１０ 粘着シート
１１ 剥離フィルム
１２ フィルム側粘着剤層
１３，５３ ネット
１３ｃ，５３ｃ 網目
１４ 基材側粘着剤層
１６ 発泡性基材
２１ 粘着剤 DESCRIPTION OF SYMBOLS 10 Adhesive sheet 11 Release film 12 Film side adhesive layer 13,53 Net 13c, 53c Mesh 14 Base material side adhesive layer 16 Foamable base material 21 Adhesive

Claims (4)

剥離フィルム(11)と、この剥離フィルム(11)に剥離可能に積層接着されたフィルム側粘着剤層(12)と、このフィルム側粘着剤層(12)に一方の面が積層接着されたネット(13)と、このネット(13)の他方の面に基材側粘着剤層(14)を介して積層接着され伸張性及び可撓性のある発泡性基材(16)とを備えた粘着シートにおいて、
前記フィルム側粘着剤層(12)が前記剥離フィルム(11)の一方の面全体に塗布されて前記ネット(13)の網目(13c)を塞ぐとともに、前記フィルム側粘着剤層(12)のうち前記ネット(13)の網目(13c)から前記発泡性基材(16)側にはみ出した粘着剤(21)により前記基材側粘着剤層(14)が構成されたことを特徴とする粘着シート。 Release film (11), film-side pressure-sensitive adhesive layer (12) laminated and adhered to this release film (11) in a peelable manner, and a net having one surface laminated and adhered to this film-side pressure-sensitive adhesive layer (12) (13) and an adhesive comprising a stretchable and flexible foamable base material (16) laminated and bonded to the other surface of the net (13) via a base material-side adhesive layer (14) In the sheet,
The film-side pressure-sensitive adhesive layer (12) is applied to one entire surface of the release film (11) to close the mesh (13c) of the net (13), and the film-side pressure-sensitive adhesive layer (12) The pressure-sensitive adhesive sheet is characterized in that the substrate-side pressure-sensitive adhesive layer (14) is constituted by the pressure-sensitive adhesive (21) protruding from the mesh (13c) of the net (13) to the foamable substrate (16) side. . 伸張性及び可撓性のある発泡性基材と、この発泡性基材に基材側粘着剤層を介して一方の面が積層接着されたネットと、このネットの他方の面に積層接着されたフィルム側粘着剤層と、このフィルム側粘着剤層に剥離可能に積層接着された剥離フィルムとを備えた粘着シートにおいて、
前記基材側粘着剤層が前記発泡性基材の一方の面全体に塗布されて前記ネットの網目を塞ぐとともに、前記基材側粘着剤層のうち前記ネットの網目から前記剥離フィルム側にはみ出した粘着剤により前記フィルム側粘着剤層が構成されたことを特徴とする粘着シート。 A stretchable and flexible foam base, a net with one side laminated to the foam base via a base-side adhesive layer, and the other side of the net In a pressure-sensitive adhesive sheet comprising a film-side pressure-sensitive adhesive layer and a release film laminated and adhered to the film-side pressure-sensitive adhesive layer in a peelable manner,
The base material-side pressure-sensitive adhesive layer is applied to one entire surface of the foamable base material to close the net network, and the base-side pressure-sensitive adhesive layer protrudes from the net network to the release film side. The pressure-sensitive adhesive sheet is characterized in that the film-side pressure-sensitive adhesive layer is constituted by the adhesive. 剥離フィルム(11)の一方の面全体に粘着剤(21)を塗布して前記剥離フィルム(11)にフィルム側粘着剤層(12)を積層接着する工程と、
前記フィルム側粘着剤層(12)にネット(13)の一方の面を積層接着する工程と、
前記フィルム側粘着剤層(12)のうち前記ネット(13)の一方の面から他方の面にはみ出した粘着剤(21)を基材側粘着剤層(14)とし前記基材側粘着剤層(14)に伸張性及び可撓性のある発泡性基材(16)を積層接着する工程と
を含む粘着シートの製造方法。 Applying a pressure-sensitive adhesive (21) to the entire surface of the release film (11) and laminating and bonding the film-side pressure-sensitive adhesive layer (12) to the release film (11);
Laminating and adhering one surface of the net (13) to the film-side pressure-sensitive adhesive layer (12);
Of the film-side pressure-sensitive adhesive layer (12), the pressure-sensitive adhesive (21) protruding from one surface of the net (13) to the other surface is used as the substrate-side pressure-sensitive adhesive layer (14), and the substrate-side pressure-sensitive adhesive layer. And (14) a step of laminating and bonding a stretchable and flexible foamable substrate (16). 伸張性及び可撓性のある発泡性基材の一方の面全体に基材側粘着剤層となる粘着剤を塗布する工程と、
前記発泡性基材の一方の面に前記基材側粘着剤層を介してネットの一方の面を積層接着する工程と、
前記基材側粘着剤層のうち前記ネットの一方の面から他方の面にはみ出した粘着剤をフィルム側粘着剤層とし前記フィルム側粘着剤層に剥離フィルムを剥離可能に積層接着する工程と
を含む粘着シートの製造方法。 Applying a pressure-sensitive adhesive serving as a substrate-side pressure-sensitive adhesive layer to one whole surface of a stretchable and flexible foamable substrate;
Laminating and adhering one surface of the net to the one surface of the foamable substrate via the substrate-side pressure-sensitive adhesive layer;
A step of laminating and adhering the release film to the film side pressure-sensitive adhesive layer so that the pressure-sensitive adhesive protruding from one side of the net to the other side of the base-side pressure-sensitive adhesive layer is a film-side pressure-sensitive adhesive layer; The manufacturing method of the adhesive sheet containing.
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JP2010215900A (en) * 2009-02-17 2010-09-30 Koyo Sangyo Co Ltd Adhesive sheet and method for producing the same
WO2016103381A1 (en) * 2014-12-25 2016-06-30 光洋産業株式会社 Pressure-sensitive adhesive sheet

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JPH02122047U (en) * 1989-03-16 1990-10-04
JPH072048U (en) * 1993-06-17 1995-01-13 東洋コーティング株式会社 Breathable material
JPH11189752A (en) * 1997-12-26 1999-07-13 Mitsui Chem Inc Adhesive substrate for fixing tile and production of tile unit

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JPS61176683A (en) * 1985-01-30 1986-08-08 Kao Corp Adhesive tape
JPS62191844U (en) * 1986-05-23 1987-12-05
JPH02122047U (en) * 1989-03-16 1990-10-04
JPH072048U (en) * 1993-06-17 1995-01-13 東洋コーティング株式会社 Breathable material
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010215900A (en) * 2009-02-17 2010-09-30 Koyo Sangyo Co Ltd Adhesive sheet and method for producing the same
WO2016103381A1 (en) * 2014-12-25 2016-06-30 光洋産業株式会社 Pressure-sensitive adhesive sheet
CN107207915A (en) * 2014-12-25 2017-09-26 光洋产业株式会社 Pressure sensitive adhesion sheet
JPWO2016103381A1 (en) * 2014-12-25 2018-01-25 光洋産業株式会社 Adhesive sheet
CN107207915B (en) * 2014-12-25 2021-03-09 光洋产业株式会社 Pressure-sensitive adhesive sheet

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