JP2020152839A - Manufacturing method of adhesive tape - Google Patents
Manufacturing method of adhesive tape Download PDFInfo
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- JP2020152839A JP2020152839A JP2019053350A JP2019053350A JP2020152839A JP 2020152839 A JP2020152839 A JP 2020152839A JP 2019053350 A JP2019053350 A JP 2019053350A JP 2019053350 A JP2019053350 A JP 2019053350A JP 2020152839 A JP2020152839 A JP 2020152839A
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- layer
- base material
- pet film
- film
- protective layer
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000002390 adhesive tape Substances 0.000 title 1
- 239000010410 layer Substances 0.000 claims abstract description 62
- 229920002799 BoPET Polymers 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000011241 protective layer Substances 0.000 claims abstract description 41
- 239000002313 adhesive film Substances 0.000 claims abstract description 32
- 239000012790 adhesive layer Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000003475 lamination Methods 0.000 abstract 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 29
- 239000000123 paper Substances 0.000 description 8
- -1 polyethylene terephthalate Polymers 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
本発明は、粘着フィルムの作製方法に関する。 The present invention relates to a method for producing an adhesive film.
従来、家電製品等に貼付され光沢によって高級感を演出する粘着フィルムが考えられており、そのような粘着フィルムの構成として、例えば特許文献１では、基材層の表面に、ハイグロスの表面保護層が積層された構成が開示されている。 Conventionally, an adhesive film that is attached to home appliances and the like to produce a high-class feeling by gloss has been considered. As a configuration of such an adhesive film, for example, in Patent Document 1, a high-gloss surface protective layer is formed on the surface of a base material layer. The configuration in which is laminated is disclosed.
しかしながら、基材層に積層される表面保護層は、基材層の表面が荒れて凸凹であると、それに倣って凸凹となり、グロス低下を招いて高級感を損なう虞がある。 However, if the surface of the base material layer is rough and uneven, the surface protective layer laminated on the base material layer may become uneven accordingly, resulting in a decrease in gloss and impairing the sense of quality.
そこで、本発明は、グロス低下が抑制され、高級感を損ない難い粘着フィルムの作製方法を提供する。 Therefore, the present invention provides a method for producing an adhesive film in which a decrease in gloss is suppressed and a high-class feeling is not impaired.
上記目的を達成するための本発明の方法は、表面保護層、基材層、および粘着剤層を積層方向にこの順序で有する粘着フィルムの作製方法であって、前記基材層を、少なくとも一方の面にＰＥＴフィルムを直接配置した状態で準備し、前記ＰＥＴフィルムの剥離後、当該ＰＥＴフィルムの配置されていた面に、前記表面保護層を設け、当該表面保護層にＰＥＴフィルムを直接配置する。 The method of the present invention for achieving the above object is a method for producing an adhesive film having a surface protective layer, a base material layer, and an adhesive layer in this order in the stacking direction, and the base material layer is at least one of them. The PET film is prepared in a state of being directly arranged on the surface of the surface, and after the PET film is peeled off, the surface protective layer is provided on the surface on which the PET film is arranged, and the PET film is directly arranged on the surface protective layer. ..
上記構成を有する発明では、平滑度が他の樹脂フィルムに比べて比較的高いＰＥＴフィルムが基材層の面に直接配置され、これによって基材層の面が平滑化されるため、そこに設けられる表面保護層も平滑となり易い。さらに、表面保護層に対してもＰＥＴフィルムが直接配置されるため、表面保護層がより平滑になり易い。 In the invention having the above structure, a PET film having a relatively high smoothness as compared with other resin films is directly arranged on the surface of the base material layer, whereby the surface of the base material layer is smoothed, so that the PET film is provided there. The surface protective layer to be formed also tends to be smooth. Further, since the PET film is directly arranged on the surface protective layer, the surface protective layer tends to be smoother.
このように、上記構成を有する発明によれば、表面保護層が平滑になり易いため、粘着フィルムのグロス低下が抑制され、高級感が損なわれ難い。 As described above, according to the invention having the above structure, since the surface protective layer tends to be smooth, the gloss reduction of the adhesive film is suppressed, and the high-class feeling is not easily impaired.
以下、添付した図面を参照しながら、本発明の実施形態を説明する。なお、図面の寸法比率は、説明の都合上誇張されており、実際の比率とは異なる。 Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The dimensional ratios in the drawings are exaggerated for convenience of explanation and differ from the actual ratios.
図１に示すように、実施形態の粘着フィルム１０は、表面保護層１１、基材層１２、粘着剤層１３、および剥離ライナー１４を積層方向にこの順序で有する。 As shown in FIG. 1, the pressure-sensitive adhesive film 10 of the embodiment has a surface protective layer 11, a base material layer 12, a pressure-sensitive adhesive layer 13, and a release liner 14 in this order in the stacking direction.
粘着フィルム１０は、剥離ライナー１４を剥がし、粘着剤層１３を介して被着体に貼付され、その表面を傷や汚れ等から保護する。粘着フィルム１０が貼付される被着体は、例えば、スマートフォンやタブレットＰＣ等であり、粘着フィルム１０は、それらに貼付されて画面を保護するとともに、光沢によって高級感を演出する。 The adhesive film 10 peels off the release liner 14 and is attached to the adherend via the adhesive layer 13 to protect the surface thereof from scratches, stains, and the like. The adherend to which the adhesive film 10 is attached is, for example, a smartphone, a tablet PC, or the like, and the adhesive film 10 is attached to them to protect the screen and produce a high-class feeling by gloss.
被着体への粘着フィルム１０の貼付は、例えば、粘着剤層１３から剥離ライナー１４を剥がした後、界面活性剤水溶液等の施工液を、粘着剤層１３の面および被着体の少なくとも一方に噴霧して貼付する、いわゆる水貼りであるが、これに限定されず、剥離ライナー１４を剥がしてそのまま粘着剤層１３を被着体に付着させる、いわゆるドライ貼りであってもよい。 To attach the pressure-sensitive adhesive film 10 to the adherend, for example, after peeling off the release liner 14 from the pressure-sensitive adhesive layer 13, a working solution such as an aqueous surfactant solution is applied to at least one of the surface of the pressure-sensitive adhesive layer 13 and the adherend. The so-called water-paste is applied by spraying on the film, but the present invention is not limited to this, and a so-called dry-paste may be used in which the release liner 14 is peeled off and the adhesive layer 13 is directly attached to the adherend.
粘着フィルム１０は、剥離ライナー１４を剥がした状態で、透明性を有する。ここで、どの程度の透明性を有するかは特に限定されず、粘着フィルム１０を貼付した状態でスマートフォンやタブレットＰＣ等の画面を視認可能であればよい。 The adhesive film 10 has transparency in a state where the release liner 14 is peeled off. Here, the degree of transparency is not particularly limited as long as the screen of a smartphone, tablet PC or the like can be visually recognized with the adhesive film 10 attached.
表面保護層１１は、スマートフォンやタブレットＰＣ等の画面操作の際、使用者の指の滑りを円滑にする役割を果たす。また、それに限定されず、表面保護層１１は、例えば耐傷性や防汚性等の機能を有してもよい。これらの観点から、表面保護層１１の形成材料は、好ましくはフッ素樹脂であるが、これに限定されず、例えば、アクリル系樹脂、ウレタン系樹脂であってもよい。 The surface protective layer 11 plays a role of smoothing the sliding of the user's finger when operating the screen of a smartphone, tablet PC, or the like. Further, the surface protective layer 11 is not limited to this, and may have functions such as scratch resistance and antifouling property. From these viewpoints, the material for forming the surface protective layer 11 is preferably a fluororesin, but is not limited to this, and may be, for example, an acrylic resin or a urethane resin.
基材層１２は、粘着剤層１３を支持し、また、粘着フィルム１０の用途に応じた機能、例えば、被着体への追従性や耐傷性等を付与する。基材層１２の厚みは、特に限定されないが、例えば、５０μｍ以上２００μｍ以下である。 The base material layer 12 supports the pressure-sensitive adhesive layer 13 and also imparts functions according to the use of the pressure-sensitive adhesive film 10, such as followability to an adherend and scratch resistance. The thickness of the base material layer 12 is not particularly limited, but is, for example, 50 μm or more and 200 μm or less.
基材層１２の形成材料は、被着体への形状追従性の観点から、柔軟性に優れるポリウレタンであるが、これに限定されず他の樹脂であってもよい。基材層１２は、１つの材料からなる単層構造を有してもよいし、異なる複数の層が積層された構造を有してもよい。 The material for forming the base material layer 12 is polyurethane having excellent flexibility from the viewpoint of shape-following property to the adherend, but the material is not limited to this and may be another resin. The base material layer 12 may have a single-layer structure made of one material, or may have a structure in which a plurality of different layers are laminated.
粘着剤層１３は、粘着フィルム１０を被着体に貼付させることができれば、特に限定されないが、被着体への貼付後においても剥離可能な再剥離性を有することが好ましい。粘着剤層１３を形成する粘着剤は、特に限定されないが、例えば、アクリル系粘着剤、ゴム系粘着剤、シリコーン系粘着剤、ポリウレタン系粘着剤、ポリエステル系粘着剤等が挙げられる。それらの粘着剤は、１種を単独で用いても２種以上を併用してもよい。 The pressure-sensitive adhesive layer 13 is not particularly limited as long as the pressure-sensitive adhesive film 10 can be attached to the adherend, but it is preferable that the pressure-sensitive adhesive layer 13 has a re-peelable property that can be peeled off even after the adhesive film 10 is attached to the adherend. The pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 13 is not particularly limited, and examples thereof include an acrylic pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a silicone-based pressure-sensitive adhesive, a polyurethane-based pressure-sensitive adhesive, and a polyester-based pressure-sensitive adhesive. These adhesives may be used alone or in combination of two or more.
剥離ライナー１４は、粘着剤層１３に剥離可能に配置されている。剥離ライナー１４の形成材料は、特に限定されないが、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート等のポリエステルフィルム、ポリプロピレンやポリエチレン等のポリオレフィンフィルムなどのプラスチックフィルム；上質紙、グラシン紙、クラフト紙、クレーコート紙などの紙、これらの紙をポリエチレンラミネートしたポリエチレンラミネート紙、これらの紙をポリプロピレンラミネートしたポリプロピレンラミネート紙等が挙げられる。 The release liner 14 is removably arranged on the pressure-sensitive adhesive layer 13. The material for forming the release liner 14 is not particularly limited, and is, for example, a polyester film such as polyethylene terephthalate, polybutylene terephthalate, or polyethylene naphthalate, or a plastic film such as a polyolefin film such as polypropylene or polyethylene; high-quality paper, glassin paper, or kraft paper. , Paper such as clay-coated paper, polyethylene-laminated paper obtained by polyethylene-laminating these papers, polypropylene-laminated paper obtained by polypropylene-laminating these papers, and the like.
次に、粘着フィルム１０の作製方法を述べる。 Next, a method for producing the adhesive film 10 will be described.
図２に示すように、本実施形態の作製方法では、まず、基材層１２が、両面１２Ａ、１２Ｂに、ＰＥＴ（ポリエチレンテレフタレート）フィルム１００、１１０を直接配置された状態で準備される。 As shown in FIG. 2, in the production method of the present embodiment, first, the base material layer 12 is prepared in a state where the PET (polyethylene terephthalate) films 100 and 110 are directly arranged on both sides 12A and 12B.
ＰＥＴフィルム１００、１１０のそれぞれにおいて、基材層１２に接する面は、平滑であり、例えば、基材層１２に接する面で算術平均粗さＲａが５ｎｍ以上３０ｎｍ以下であり、その最大山高さＲｐは１００ｎｍ以上５００ｎｍ以下である。算術平均粗さＲａおよび最大山高さＲｐは、ＪＩＳ Ｂ０６０１：２０１３に規定された方法で測定される値である。 In each of the PET films 100 and 110, the surface in contact with the base material layer 12 is smooth. For example, the surface in contact with the base material layer 12 has an arithmetic average roughness Ra of 5 nm or more and 30 nm or less, and its maximum mountain height Rp. Is 100 nm or more and 500 nm or less. The arithmetic mean roughness Ra and the maximum mountain height Rp are values measured by the method specified in JIS B0601: 2013.
ＰＥＴフィルム１００、１１０は、次の工程が行われる前に剥がされ、表面の平滑化された基材層１２だけが、次の工程に用いられる。 The PET films 100 and 110 are peeled off before the next step is performed, and only the surface smoothed base material layer 12 is used in the next step.
図３に示すように、表面の平滑化された基材層１２では、次の工程で、面１２Ａに表面保護層１１が設けられる。表面保護層１１をどのようにして形成するかは、特に限定されないが、例えば、表面保護層１１の主要な構成要素である例えばフッ素樹脂等の樹脂を含む塗工液を、面１２Ａに塗工して塗膜を形成し、これを硬化させることによって、表面保護層１１は形成される。 As shown in FIG. 3, in the base material layer 12 having a smoothed surface, the surface protective layer 11 is provided on the surface 12A in the next step. How the surface protective layer 11 is formed is not particularly limited, but for example, a coating liquid containing a resin such as a fluororesin, which is a main component of the surface protective layer 11, is applied to the surface 12A. The surface protective layer 11 is formed by forming a coating film and curing the coating film.
また、図４に示すように、表面保護層１１には、ＰＥＴフィルム１２０が直接配置される。ＰＥＴフィルム１２０は、表面保護層１１に直接配置されれば、いつ配置されるかは特に限定されず、例えば、表面保護層１１を形成する塗膜の硬化後であってもよいが、好ましくは、塗膜が完全に硬化する前の柔らかい状態のとき、表面保護層１１にＰＥＴフィルム１２０が直接配置される。こうすることによって、ＰＥＴフィルム１２０の平滑性が、表面保護層１１へ、より転写され易くなる。ＰＥＴフィルム１２０において、表面保護層１１に接する面の算術平均粗さＲａおよび最大山高さＲｐは、上述のＰＥＴフィルム１００、１１０における値と同様である。 Further, as shown in FIG. 4, the PET film 120 is directly arranged on the surface protective layer 11. If the PET film 120 is directly arranged on the surface protective layer 11, the time when the PET film 120 is arranged is not particularly limited, and may be, for example, after the coating film forming the surface protective layer 11 is cured, but it is preferable. When the coating film is in a soft state before it is completely cured, the PET film 120 is directly arranged on the surface protective layer 11. By doing so, the smoothness of the PET film 120 is more easily transferred to the surface protective layer 11. In the PET film 120, the arithmetic mean roughness Ra and the maximum mountain height Rp of the surface in contact with the surface protective layer 11 are the same as the values in the PET films 100 and 110 described above.
図５に示すように、ＰＥＴフィルム１２０の配置後、粘着剤層１３および剥離ライナー１４が設けられ、粘着フィルム１０ができる。 As shown in FIG. 5, after the PET film 120 is arranged, the pressure-sensitive adhesive layer 13 and the release liner 14 are provided to form the pressure-sensitive adhesive film 10.
粘着剤層１３および剥離ライナー１４を基材層１２に対しどのように積層するかは、特に限定されず、例えば、基材層１２の面１２Ｂに粘着剤を塗布して粘着剤層１３を形成した後、粘着剤層１３に剥離ライナー１４を積層してもよいし、粘着剤層１３と剥離ライナー１４との積層体を予め準備しておき、それを基材層１２の面１２Ｂに貼り合せてもよい。 How the pressure-sensitive adhesive layer 13 and the release liner 14 are laminated on the base material layer 12 is not particularly limited, and for example, the pressure-sensitive adhesive is applied to the surface 12B of the base material layer 12 to form the pressure-sensitive adhesive layer 13. After that, the release liner 14 may be laminated on the pressure-sensitive adhesive layer 13, or a laminate of the pressure-sensitive adhesive layer 13 and the release liner 14 may be prepared in advance and bonded to the surface 12B of the base material layer 12. You may.
粘着フィルム１０の作製後、ＰＥＴフィルム１２０は剥がされる。ＰＥＴフィルム１２０をいつ剥がすかは、特に限定されず、例えば、粘着剤層１３および剥離ライナー１４を設ける前に剥がしてもよいが、本実施形態のように、粘着フィルム１０の作製後に剥がすことによって、作製工程の間、表面保護層１１を保護できる。 After producing the adhesive film 10, the PET film 120 is peeled off. When the PET film 120 is peeled off is not particularly limited. For example, the PET film 120 may be peeled off before the pressure-sensitive adhesive layer 13 and the release liner 14 are provided, but by peeling off the PET film 120 after the preparation of the pressure-sensitive adhesive film 10 as in the present embodiment. , The surface protective layer 11 can be protected during the manufacturing process.
次に、本実施形態の作用効果を述べる。 Next, the action and effect of this embodiment will be described.
本実施形態では、平滑度が他の樹脂フィルムに比べて比較的高いＰＥＴフィルム１００が基材層１２の面１２Ａに直接配置され、これによって面１２Ａが平滑化されるため、そこに設けられる表面保護層１１も平滑となり易い。さらに、表面保護層１１に対してもＰＥＴフィルム１２０が直接配置されるため、表面保護層１１がより平滑になり易い。 In the present embodiment, the PET film 100 having a relatively high smoothness as compared with other resin films is directly arranged on the surface 12A of the base material layer 12, which smoothes the surface 12A, so that the surface provided there. The protective layer 11 also tends to be smooth. Further, since the PET film 120 is directly arranged on the surface protective layer 11, the surface protective layer 11 tends to be smoother.
このように、本実施形態によれば、表面保護層１１が平滑になり易いため、粘着フィルム１０のグロス低下が抑制され、高級感が損なわれ難い。 As described above, according to the present embodiment, since the surface protective layer 11 tends to be smooth, the gloss reduction of the adhesive film 10 is suppressed, and the high-class feeling is not easily impaired.
本実施形態では、基材層１２は、表面保護層１１の設けられる面１２Ａだけでなく、それと反対側の面１２ＢでもＰＥＴフィルム１１０が直接配置された状態で準備され、面１２Ｂも平滑化される。本実施形態と異なり面１２Ｂが凸凹であると、粘着フィルム１０を透過する光が面１２Ｂで散乱し易いが、本実施形態では、面１２Ｂは、ＰＥＴフィルム１１０が直接配置されることによって平滑化されるため、面１２Ｂでの光の散乱が抑制される。従って、粘着フィルム１０の透明性を高めることができ、スマートフォンやタブレットＰＣ等の画面の視認性を上げられる。 In the present embodiment, the base material layer 12 is prepared in a state where the PET film 110 is directly arranged not only on the surface 12A on which the surface protective layer 11 is provided but also on the surface 12B on the opposite side thereof, and the surface 12B is also smoothed. To. Unlike the present embodiment, if the surface 12B is uneven, the light transmitted through the adhesive film 10 is likely to be scattered on the surface 12B, but in the present embodiment, the surface 12B is smoothed by directly arranging the PET film 110. Therefore, the scattering of light on the surface 12B is suppressed. Therefore, the transparency of the adhesive film 10 can be improved, and the visibility of the screen of a smartphone, tablet PC, or the like can be improved.
本実施形態と異なり、表面保護層１１に配置したＰＥＴフィルム１２０を剥がさず、そのままにしておく形態も本発明の範囲に含まれるが、本実施形態のように、ＰＥＴフィルム１２０を剥がしておけば、粘着フィルム１０の使用時にＰＥＴフィルム１２０を剥がす手間を省け、作業者の負担を軽減できる。 Unlike the present embodiment, a mode in which the PET film 120 arranged on the surface protective layer 11 is not peeled off and is left as it is is also included in the scope of the present invention, but if the PET film 120 is peeled off as in the present embodiment, It is possible to save the trouble of peeling off the PET film 120 when using the adhesive film 10 and reduce the burden on the operator.
基材層１２をポリウレタンによって形成すれば、基材層１２が高い柔軟性を有するため、粘着フィルム１０を被着体に良好に追従させて貼付できる。 If the base material layer 12 is made of polyurethane, the base material layer 12 has high flexibility, so that the adhesive film 10 can be attached so as to follow the adherend well.
本発明は、上述した実施形態に限定されるものではなく、特許請求の範囲内で種々改変できる。 The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
例えば、上記実施形態では、基材層１２を、両面にＰＥＴフィルム１００、１１０を配置した状態で準備したが、本発明は、この形態に限定されず、基材層を、一方の面だけにＰＥＴフィルムを配置した状態で準備する形態も、本発明の範囲に含まれる。 For example, in the above embodiment, the base material layer 12 is prepared with the PET films 100 and 110 arranged on both sides, but the present invention is not limited to this embodiment, and the base material layer is applied to only one side. The form of preparing the PET film in an arranged state is also included in the scope of the present invention.
また、上記実施形態では、基材層１２に対して表面保護層１１およびＰＥＴフィルム１２０が積層された後に、粘着剤層１３および剥離ライナー１４が設けられているが、本発明は、この形態に限定されず、基材層に対し、粘着剤層および剥離ライナーが設けられた後に、表面保護層およびＰＥＴフィルムが積層される形態も含む。 Further, in the above embodiment, the pressure-sensitive adhesive layer 13 and the release liner 14 are provided after the surface protective layer 11 and the PET film 120 are laminated on the base material layer 12, but the present invention relates to this embodiment. The present invention includes, but is not limited to, a form in which the surface protective layer and the PET film are laminated after the pressure-sensitive adhesive layer and the release liner are provided on the base material layer.
また、本発明によって作製される粘着フィルムは、上記実施形態のように、スマートフォンやタブレットＰＣ等の画面に貼付される粘着フィルムに限定されず、例えば、自動車、バイク、鉄道車両、航空機、船舶等の移動体の内装材や外装材等に貼付される粘着フィルムであってもよい。 Further, the adhesive film produced by the present invention is not limited to the adhesive film attached to the screen of a smartphone, tablet PC, or the like as in the above embodiment, and is, for example, an automobile, a motorcycle, a railroad vehicle, an aircraft, a ship, or the like. It may be an adhesive film attached to the interior material, exterior material, or the like of the moving body.
１０ 粘着フィルム、
１１ 表面保護層、
１２ 基材層、
１２Ａ 基材層の一方の面、
１２Ｂ 基材層の他方の面、
１３ 粘着剤層、
１４ 剥離ライナー、
１００ 基材層の一方の面に配置されるＰＥＴフィルム、
１１０ 基材層の他方の面に配置されるＰＥＴフィルム、
１２０ 表面保護層に配置されるＰＥＴフィルム。
10 Adhesive film,
11 Surface protective layer,
12 base material layer,
One surface of the 12A substrate layer,
The other surface of the 12B substrate layer,
13 Adhesive layer,
14 Peeling liner,
100 PET film placed on one side of the substrate layer,
110 PET film placed on the other side of the substrate layer,
120 PET film placed on the surface protective layer.
Claims (4)
前記基材層を、少なくとも一方の面にＰＥＴフィルムを直接配置した状態で準備し、
前記ＰＥＴフィルムの剥離後、当該ＰＥＴフィルムの配置されていた面に、前記表面保護層を設け、
当該表面保護層にＰＥＴフィルムを直接配置する、粘着フィルムの作製方法。 A method for producing an adhesive film having a surface protective layer, a base material layer, and an adhesive layer in this order in the stacking direction.
The base material layer is prepared with the PET film directly placed on at least one surface.
After the PET film was peeled off, the surface protective layer was provided on the surface on which the PET film was arranged.
A method for producing an adhesive film, in which a PET film is directly arranged on the surface protective layer.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095560A (en) * | 2008-10-14 | 2010-04-30 | Nitto Denko Corp | Protective adhesive sheet |
| JP2014224220A (en) * | 2012-10-01 | 2014-12-04 | 日東電工株式会社 | Coat layer composition |
| WO2018216113A1 (en) * | 2017-05-23 | 2018-11-29 | リンテック株式会社 | Roll and method for manufacturing roll |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095560A (en) * | 2008-10-14 | 2010-04-30 | Nitto Denko Corp | Protective adhesive sheet |
| JP2014224220A (en) * | 2012-10-01 | 2014-12-04 | 日東電工株式会社 | Coat layer composition |
| WO2018216113A1 (en) * | 2017-05-23 | 2018-11-29 | リンテック株式会社 | Roll and method for manufacturing roll |
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