JP2011064920A - Pasting anti-reflection film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an excellent pasting anti-reflection film which prevents the generation of static electricity and has an adhesive layer provided with a uniform thickness when applying the adhesive layer coating liquid onto a substrate and does not exert adverse effect to the reflectance. <P>SOLUTION: In the pasting anti-reflection film subjected to anti-reflection treatment on one surface of the transparent substrate, an easy adhesion layer, an intermediate layer and a tight adhesion layer are laminated in the order from a transparent substrate, on the surface of the opposite side to an anti-reflection surface, and refractive indexes of respective layers have the following relation: refractive index of the substrate≥refractive index of the easy adhesion layer≥refractive index of the intermediate layer≥refractive index of the tight adhesion layer. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a sticking antireflection film that can be easily reattached, can be easily peeled off with a slight peeling force during re-peeling, and no adhesive residue is generated.

Conventionally, a decorative sticking sheet has been provided in which an adhesion layer is provided on a base material and the other surface is subjected to proper printing processing (Patent Document 1). Display is easily performed by printing on one side of the sheet and sticking the adhesion layer surface to an adherend having a flat surface such as a window glass. Even if the sheet was peeled off, there was no problem of adhesive residue, and it was characterized by being stuck and peeled many times. This sheet is produced by applying an adhesion layer coating solution on a substrate using a coater, applying a coating solution for proper printing on the other surface, and then bringing the release sheet into close contact with the adhesion layer surface. It is something to finish. Here, when the adhesion layer coating solution is applied onto the base material, static electricity is generated on the base material, resulting in a problem of uneven coating. If the coating unevenness occurs, the adhesion layer does not have a uniform thickness, so that the appearance is less transparent. Also. There was a problem that the rework performance of being stuck and peeled was inferior.

  In view of this, a sheet is provided in which an antistatic easy-adhesion layer is provided between the base material and the adhesion layer to prevent static electricity and to prevent coating unevenness (Patent Document 2).

JP 2004-59800 A JP 2007-145881 A

In Patent Document 2, ATO fine particles are used as an antistatic agent. As described in the publication, it is a general antistatic agent, anionic (phosphate ester type, sulfonic acid type), cationic (quaternary ammonium salt type, tertiary amine type), non-ionic When the amount of ionic (polyhydric alcohol ester type, amide type) and amphoteric antistatic agents is used until the effect is obtained, the curing agent of the adhesion layer and the antistatic agent react and cure, and adhesion The problem that the layer does not sufficiently harden occurs or the film interface bleeds and does not sufficiently perform the adhesion function with the adhesion layer.

On the other hand, ATO fine particles can form a layer having excellent conductivity and transparency by using nano-order fine particles.
However, when an antistatic layer containing ATO fine particles is installed on the surface opposite to the antireflective surface of the antireflection film, the high refractive index of the ATO fine particles affects the reflectivity of the antireflection film. It has been found that a malfunction occurs.

  In order to solve the above problems, the present invention provides a sticking antireflection film that does not affect the reflectance of the antireflection film by controlling the refractive index of the surface opposite to the antireflection surface of the antireflection film. It is to provide.

1st invention is the antireflection film by which the antireflection process was given to the single side | surface of the transparent base material, and the surface on the opposite side to an antireflection surface is laminated | stacked in order of an easily bonding layer, an intermediate | middle layer, and an adhesion layer from a transparent base material. The antireflective film for sticking is characterized in that the refractive index of each layer has the relationship of the following formula.
Refractive index of substrate ≧ refractive index of easy adhesion layer ≧ refractive index of intermediate layer ≧ refractive index of adhesion layer The second invention is a silicone comprising a linear polyorganosiloxane in which the adhesion layer has vinyl groups only at both ends. A silicone composed of a linear polyorganosiloxane having vinyl groups at both ends and side chains, a silicone composed of a polyorganosiloxane having a vinyl group only at the ends, and a branch having vinyl groups at the ends and side chains The antireflective film for sticking according to the first invention, characterized in that it is formed by crosslinking at least one silicone selected from silicones composed of the above polyorganosiloxane.

  3rd invention is an intermediate | middle layer in which the said intermediate | middle layer has an antistatic function, and consists of a carbon nanotube and acrylic polyol, It is the antireflection film for sticking of 1st invention or 2nd invention characterized by the above-mentioned.

  According to a fourth aspect of the present invention, the intermediate layer is an intermediate layer having an antistatic function, and is composed of a conductive polymer selected from at least one of polyaniline, polythiophene, polypyrrole, and polyquinoxaline and an acrylic polyol. Or it is the antireflection film for sticking of Claim 2.

  The fifth invention is the antireflection film for sticking according to any one of the first to fourth inventions, wherein the transparent substrate is a polyester film.

When the adhesion layer coating solution is applied onto the substrate, static electricity is not generated, and the adhesion layer can be provided with a uniform thickness. Moreover, the outstanding antireflection film for sticking which does not exert a bad influence on a reflectance can be provided.

If the base material used by this invention is a film which consists of various plastics, it will not specifically limit. Examples include films made of polyolefin, polyester, polyamide, polycarbonate, fluororesin, polyphenylene oxide, polyimide, polyamideimide, acrylic resin, polyvinyl chloride, polyvinylidene chloride, polyacrylonitrile, cellulose resin, etc. It is not limited to. A polyester film is preferably used from the viewpoints of handleability, improvement in adhesion with the adhesive layer, and cost. The thickness of the substrate may be appropriately selected according to the use, but usually a thickness in the range of 4 to 400 μm is used.

  It is preferable that an easy-adhesion layer is laminated on the base material of the present invention. Examples of the resin used for the easy-adhesion layer include copolymer polyester resins, polyurethane resins, acrylic resins, styrene-maleic acid graft polyester resins, acrylic graft polyester resins, and the like. Is preferred. Further, the easy-adhesion layer may contain particles for imparting slipperiness. Examples of particles to be included in the easy-adhesion layer include calcium carbonate, calcium phosphate, silica, kaolin, talc, titanium dioxide, alumina, barium sulfate, calcium fluoride, lithium fluoride, zeolite, molybdenum sulfide and the like, Examples thereof include organic particles such as crosslinked polymer particles and calcium oxalate.

  In addition, when the antireflective layer described in detail below is applied to a substrate such as a polyester film, interference unevenness occurs in the antireflective layer in a general easy-adhesive layer. When an organic resin having a high aromatic resin or metal element is contained and the refractive index of the easy-adhesion layer is 1.55 to 1.75, the effect on interference unevenness is high.

  The antireflection layer in the present invention is a layer that reduces reflected light by utilizing the interference action of light, and a layer having a refractive index lower than that of the transparent film is provided on the transparent film to form an antireflection layer. Is. When the refractive index of the antireflection layer is n0, the thickness is h, the refractive index of the adjacent layer is ng, and the wavelength of light is λ, when n0 = √ng and n0 h = λ / 4 is satisfied, the normal incidence The transmitted light can be transmitted 100% and reflection can be prevented 100%. If the wavelength λ of light is typified by 5500 mm, for example, when the refractive index ng of the acrylic resin film is about 1.5 as a transparent film and MgF2 is provided as an antireflection layer, the refractive index n0 is 1.38. The thickness of the antireflection layer needs to be about 0.1 μm. Examples of the low refractive index layer include a layer made of a low refractive index inorganic material. Examples of the low refractive index inorganic material include LiF, MgF2, 3Na.AlF3, AlF3, Na3 AlF6, and SiOx (x: 1.50≤x≤2.00). Formation of the antireflection layer using these inorganic materials is performed by vacuum deposition, sputtering, ion plating, plasma CVD, or the like to form a single layer or multiple layers. In particular, a film of SiOx (x is 1.50 ≦ x ≦ 4.00, preferably 1.70 ≦ x ≦ 2.20) formed by a plasma CVD method has high hardness and adhesion to the hard coat layer described below. It is excellent and has a favorable thermal damage to the transparent film.

  Alternatively, a low refractive index layer comprising a crosslink of a fluorine-containing resin crosslinked by heat or ionizing radiation, a low refractive index layer by a sol-gel method, and a low refractive index layer having voids between particles or inside the particles using particles and a binder polymer Or a film may be formed.

For the purpose of further improving the antireflection performance, a high refractive index layer having a refractive index of 1.55 to 2.30 may be laminated under the low refractive index layer. Examples of the high refractive index layer include a layer made of a high refractive index inorganic material. Examples of the high refractive index inorganic material include TiO ₂ , Al ₂ O ₃ , In ₂ O ₃ , ZnO, SnO ₂ , Sb ₂ O ₃ and ITO. These are formed into a single layer or multiple layers by the above-described vacuum deposition, sputtering, ion plating, plasma CVD or the like. Alternatively, a film may be formed using inorganic fine particles such as TiO ₂ , Al ₂ O ₃ , In ₂ O ₃ , ZnO, SnO ₂ , Sb ₂ O ₃ , ITO, and a binder polymer.

  In order to improve the scratch resistance of the antireflection layer, a hard coat layer may be provided under the antireflection layer. The hard coat layer is obtained by adding an inorganic filler such as silica or alumina to a composition in which a polyfunctional acrylic monomer, an oligomer such as urethane acrylate or epoxy acrylate, or various polymerization initiators are dissolved in a solvent. It is preferably formed by applying a coating composition, drying a solvent, curing by heat and / or ionizing radiation.

  The intermediate layer of the present invention is preferably composed of an antistatic agent and a resin binder. In particular, when the adhesion layer is a silicone resin described in detail below, an acrylic polyol is most preferable as the resin binder. The acrylic polyol has a function of adhering with a sufficient adhesive force when the adhesion layer is a silicone layer on the substrate. Even if it peels after sticking a sticking film on the glass surface etc. over a long period of time, peeling does not generate | occur | produce between a base material and a silicone layer. In addition, even when the adhesive film is used where it is exposed to direct sunlight and peeled off, it provides excellent adhesiveness in which the silicone layer does not peel off.

  Examples of the acrylic polyol include a copolymer obtained by copolymerizing a polymerizable monomer having one or more hydroxyl groups in the molecule and another monomer copolymerizable therewith. Examples of the polymerizable monomer having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, 2,2-dihydroxymethylbutyl (meth) acrylate, poly Examples thereof include hydroxyalkyl maleate and polyhydroxyalkyl fumarate. Examples of monomers copolymerizable with these include (meth) acrylic acid, alkyl (meth) acrylates (C1 to C12), maleic acid, alkyl maleate, fumaric acid, alkyl fumarate, and itaconic acid. , Alkyl itaconate, styrene, α-methylstyrene, vinyl acetate, (meth) acrylonitrile, 3- (2-isocyanato-2-propyl) -α-methylstyrene, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra ( And (meth) acrylate. An acrylic polyol can be obtained by copolymerizing these monomers in the presence of an appropriate solvent and a polymerization initiator.

By using the acrylic polyol, when the hydroxyl group in the acrylic polyol and the SiH group in the silicone layer cause the silicone to undergo a crosslinking reaction, they are cross-linked to improve the adhesive force at the interface between the intermediate layer and the silicone layer. . Therefore, even if a resin having no hydroxyl group is used for the intermediate layer, sufficient adhesive force cannot be obtained.
When the adhesive film is exposed to direct sunlight, the adhesive strength between the silicone layer and the adherend increases, and when the adhesive film is peeled off, peeling occurs between the base material and the silicone layer, and the silicone layer remains on the adherend. There is a case. However, when acrylic polyol is used as the binder for the intermediate layer, the silicone layer is firmly adhered to the base material, so that such a problem does not occur. Acrylic polyol has an excellent light resistance compared to other hydroxyl group-containing resins such as polyester polyol.

  It is preferable to use an acrylic polyol having a hydroxyl value in the range of 10 to 45. When the hydroxyl value is less than the above range, the adhesive force between the intermediate layer and the silicone layer is weak, and the silicone layer is easily detached from the substrate. When the above range is exceeded, the hydroxyl groups in the intermediate layer consume too much SiH groups in the silicone layer, and sufficient curing of the silicone layer cannot be obtained.

  As the antistatic agent used in the intermediate layer of the present invention, a carbon nanomaterial is preferably used. Examples of carbon nanomaterials include carbon nanotubes, carbon nanohorns, carbon nanowalls, and fullerenes. Of these, it is most preferable to use carbon nanotubes. Carbon nanotubes generally have a hollow fiber shape, and are carbon materials having a diameter of about 0.5 nm to 5 μm and a length of about 10 nm to 1000 μm. In the present invention, it is preferable to use carbon nanotubes having a diameter of 0.5 nm to 1 μm and a length of 10 nm to 100 μm.

  As the antistatic agent, a conductive polymer may be used together with the carbon nanomaterial or alone. As the conductive polymer, those having good optical properties, appearance, antistatic effect and antistatic effect when heated and humidified are used. Examples of such a conductive polymer include polymers such as polyaniline, polythiophene, polypyrrole, and polyquinoxaline. Among these, polyaniline, polythiophene, and the like that are likely to become a water-soluble conductive polymer or a water-dispersible conductive polymer are preferably used. Polythiophene is particularly preferable.

  The ratio of the resin binder to the antistatic agent is preferably 20 parts by weight or less, more preferably 0.001 to 10 parts by weight with respect to 100 parts by weight of the resin binder component. If the amount of the antistatic material is less than this, the antistatic effect cannot be obtained, and if it is more than this, the transmittance of the film is lowered.

The surface resistance value of the intermediate layer is preferably 1 × 10 ¹² Ω / □ or less, more preferably 1 × 10 ¹¹ Ω / □ or less. When the surface resistance value exceeds 1 × 10 ¹² Ω / □, the antistatic function is not sufficient, and when applying the adhesion layer coating solution, static electricity is generated on the base material, resulting in coating unevenness. It is likely to occur.

  The thickness of the intermediate layer is preferably in the range of 0.01 to 5 μm. When the thickness of the intermediate layer is less than the above range, the silicone layer is easily detached from the substrate. If the above range is exceeded, the flexibility of the intermediate layer itself is lost, resulting in a hard layer, and the adhesion of the intermediate layer to the base material is deteriorated. A more preferable thickness range is 0.05 to 1.0 μm.

  A thermoplastic resin other than the above resin may be added to the intermediate layer as long as the effect of the present invention is not reduced. Examples of the thermoplastic resin include polyamide resin, phenol resin, xylene resin, ethylene-vinyl acetate copolymer, alkyd resin, urethane resin, polycarbonate resin, and the like, and one or more of these may be used.

  The adhesion layer of the present invention is a layer having functions such as adhesiveness, self-adhesiveness, and adsorptivity. Examples of the resin used include one or more resins selected from polyolefin, polyester, polyamide, acrylic, vinyl chloride, silicone, and the like. In particular, a silicone resin is most preferable because it is very stable with respect to the surrounding environment, is not greatly affected by physical properties, has little adhesive residue, and can be peeled and peeled over and over.

The silicone layer includes a silicone composed of a linear polyorganosiloxane having vinyl groups only at both ends, a silicone composed of a linear polyorganosiloxane having vinyl groups at both ends and side chains, and a vinyl group only at the ends. A product obtained by crosslinking at least one kind of silicone selected from a silicone composed of a branched polyorganosiloxane having a chain and a silicone composed of a branched polyorganosiloxane having a vinyl group at the terminal and side chain is used.
As one form of these silicones, a linear polyorganosiloxane having vinyl groups only at both ends is a compound represented by the following general formula (Formula 1).

(Wherein R represents the following organic group, and n represents an integer)

(Wherein R represents the following organic group, and n and m represent integers)
The organic group (R) bonded to the silicon atom other than the vinyl group may be different or of the same type. Specific examples include alkyl groups such as methyl, ethyl and propyl groups, and aryl groups such as phenyl and tolyl groups. Or a monovalent hydrocarbon group other than the same or different unsubstituted or substituted aliphatic unsaturated group in which part or all of the hydrogen atoms bonded to the carbon atoms of these groups are substituted with a halogen atom, a cyano group, or the like. Preferable examples include those having at least 50 mol% of a methyl group. These diorganopolysiloxanes may be used alone or as a mixture of two or more thereof.

A silicone comprising a linear polyorganosiloxane having vinyl groups at both ends and side chains is a compound in which a part of R in the above general formula (Formula 1) is a vinyl group. Silicone composed of a branched polyorganosiloxane having a vinyl group only at the terminal is a compound represented by the above general formula (Formula 2). A silicone comprising a branched polyorganosiloxane having vinyl groups at the terminals and side chains. A compound in which a part of R in the above general formula (Formula 2) is a vinyl group.
Here, a known crosslinking agent may be used for the crosslinking reaction. Examples of the crosslinking agent include organohydrogenpolysiloxane. Organohydrogenpolysiloxane has at least three hydrogen atoms bonded to silicon atoms in one molecule, but from a practical viewpoint, one having two ≡SiH bonds in the molecule is 50% by weight of the total amount. It is preferable that the remainder contains at least three ≡SiH bonds in the molecule.

  The platinum-based catalyst used for the crosslinking reaction may be a known one, including chloroplatinic acid such as chloroplatinic acid and chloroplatinic acid, alcohol compounds of chloroplatinic acid, aldehyde compounds, or chloroplatinic acid and various olefins. And chain salts. The crosslinked silicone layer has flexibility such as silicone rubber, and this flexibility facilitates the close contact with the adherend.

  The shape of the commercially available silicone product according to the present invention includes a solventless type, a solvent type, and an emulsion type, but any type can be used. Above all, the solventless type is very advantageous in terms of safety, hygiene, and air pollution because it does not use a solvent. In addition, the coating thickness of the silicone layer needs to exceed 1.1 μm, and in some cases, it is provided with a thickness of several tens of μm. Therefore, in the case of solvent type silicone or emulsion type silicone, the solvent is dried at the time of coating. Therefore, it is preferable to use a solventless silicone as the silicone used in the present invention.

As for the thickness of a silicone layer, 1.1-100 micrometers is preferable. More preferably, it is 1.1-50 micrometers. When the thickness of the silicone layer is less than 1.1 μm, it becomes difficult to adhere to the adherend, the shearing force of the sticking sheet to the adherend becomes less than 1.0 N / cm ^2, and sticking is required when sticking for a long time. There is a possibility of peeling of the sheet. When the thickness of the silicone layer exceeds 100 μm, the amount of silicone used increases, which is uneconomical in terms of cost.

Generally, the material of the adherend is glass, a resin plate, a metal plate, a ceramic plate, a painted plate, or the like, and the surface of the adherend needs to be as smooth as possible. If the surface irregularities are large, it will be difficult for the silicone layer surface to follow the irregularities, making it impossible to adhere.
In addition, the two types of silicone according to the present invention are used as a release agent for release paper to be superimposed on an adhesive sheet in general industrial products. For example, JP-A-10-140099 describes that two types of silicone according to the present invention are used as a release agent for release paper. However, the coating amount of the silicone for release paper is 0.1 to 1.0 g / m ² (thickness: 0.1%) as described in “Silicone Handbook” (published by Nikkan Kogyo) on page 519. 1 to 1.0 μm), which is very small. Accordingly, the release paper or release sheet coated with the two types of silicone according to the present invention as a release agent cannot be used as the adhesive film of the present invention because of its small coating thickness.

  A roll coater, gravure coater, bar coater, knife coater, die coater, or the like is appropriately used as a coating method for the coating solution for the antireflection layer, the easy adhesion layer, the intermediate layer, and the adhesion layer. In many cases, the easy-adhesion layer is applied by a base material manufacturer.

  A separator can be bonded to the surface of the adhesive layer in order to prevent dirt and foreign matter from adhering to the surface of the adhesive layer and improve the handling of the adhesive film.

The present invention will be described more specifically with reference to the following examples. In addition, this invention is not limited by these Examples.
Preparation of the antireflection film for sticking of Examples 1-3 and Comparative Examples 1-3.

[Formation of antireflection layer]
The following hard coat coating solution was applied with a gravure coater on one side of two types of polyethylene terephthalate films with double-sided easy-adhesion layers having a thickness of 100 μm shown in Table 1 and then dried at 80 ° C., and then integrated light quantity 500 mj / cm ² The hard coat layer having a thickness of 3 μm was formed by irradiating with UV rays.

Hard coat coating solution Pentaerythritol tetraacrylate (acrylic monomer, Nippon Kayaku) 29 parts by weight Darocur 1173 (photoinitiator, Ciba Specialty Chemicals) 1 part by weight MEK 70 parts by weight

Next, after applying the above hard coat layer, the following low refractive index coating solution was applied and dried with a gravure coater, and then the coated film was heated and cured at 120 ° C. for 1 hour to prevent reflection with a thickness of 98 nm. A layer was formed.

・ Low refractive index coating liquid Fluorine resin liquid (trade name “OPSTAR JN7215”, manufactured by JSR) 100 parts by weight

[Formation of intermediate layer]
On the opposite side of the antireflection film produced as described above, the following intermediate layer AD coating solutions corresponding to the examples and comparative examples shown in Table 1 were applied with a gravure coater, and then at 80 ° C. An intermediate layer having a thickness of 0.3 μm was formed by drying.
・ Middle layer A
Acrylic polyol (trade name “Cotax LH455”, solid content 50%, manufactured by Toray Fine Chemical) 20 parts by weight carbon nanotube (solid content 100%, product name “CNF-T”, manufactured by Mitsubishi Materials) 0.3 part by weight dispersant ( (Solid content 100%) 0.7 parts by weight MEK 79 parts by weight Intermediate layer B
Acrylic polyol (solid content 50%, trade name “Cotax LH455”, manufactured by Toray Fine Chemical) 20 parts by weight polythiophene (solid content 3%, product name “Seplujida OC-SC100” manufactured by Shin-Etsu Polymer) 27 parts by weight MEK 53 parts by weight

・ Intermediate layer C
Acrylic polyol (solid content 50%, trade name “Cotax LH455”, manufactured by Toray Fine Chemical) 20 parts by weight ATO fine particles (solid content 27%, trade name “LS-110”, manufactured by Solvex) 56 parts by weight MEK 24 parts by weight

・ Intermediate layer D
Acrylic polyol (solid content 50%, trade name “Cotax LH455”, manufactured by Toray Fine Chemical) 20 parts by weight MEK 80 parts by weight

[Formation of adhesion layer]
On the intermediate layer, the following silicone coating solution was applied and heated at 150 ° C. for 100 seconds to crosslink the silicone to form a 25 μm thick silicone layer.

-100 parts by weight of a linear polyorganosilicone having vinyl groups only at both ends of the silicone coating solution
(Solvent-free type containing a crosslinking agent) (trade name “X-62-1347” manufactured by Shin-Etsu Chemical Co., Ltd.)
Platinum catalyst (trade name "CAT-PL-56" manufactured by Shin-Etsu Chemical Co., Ltd.) 2 parts by weight

The sticking antireflection film produced as described above was stuck on a transparent acrylic plate having a thickness of 3 mm. Next, each sample was evaluated and measured by the following method.

1. The refractive index of each layer was measured using a refractive index FilmTek 3000 (an optical film thickness refractive index measuring device, manufactured by SCI, USA).
2. The luminous reflectance of each sample was measured using a reflectance FilmTek 3000 (an optical film thickness refractive index measuring device, manufactured by SCI, USA).
3. A sample having a surface resistance value of 100 μm of the intermediate layer coated with 0.3 μm of the intermediate layer alone was prepared, and the surface resistance value was measured using Hiresta MCP-HT450 (surface resistance value measuring instrument, manufactured by Mitsubishi Chemical Analytech). .
4). Coatability of adhesion layer Visual determination was performed according to the following criteria.
Judgment criteria ○: There is no unevenness on the coated surface and good surface quality
×: Unevenness due to electrostatic charge on the coated surface

The measurement and evaluation results are summarized in Table 1 according to the above method.

* 1, * 2: Films with an antireflection layer on one side of a PET film.
* 3: In Examples 1 to 3 and Comparative Examples 1 to 3, when the rate of increase in reflectivity is less than 0.2% compared to the reflectivity of the STD sample, it was determined to be ◯, and 0.2% or more was determined to be ×. .

Claims (5)

In the antireflection film in which an antireflection treatment is performed on one side of the transparent substrate, the surface opposite to the antireflection surface is laminated in the order of the transparent substrate, the easy-adhesion layer, the intermediate layer, and the adhesion layer. The antireflective film for sticking, characterized in that the refractive index of is in the relationship of the following formula.
Refractive index of base material ≧ refractive index of easy adhesion layer ≧ refractive index of intermediate layer ≧ refractive index of adhesion layer The adhesive layer has a silicone composed of a linear polyorganosiloxane having vinyl groups only at both ends, a silicone composed of a linear polyorganosiloxane having vinyl groups at both ends and side chains, and a vinyl group only at the ends. It is characterized in that it is formed by crosslinking at least one kind of silicone selected from a silicone comprising a branched polyorganosiloxane and a silicone comprising a branched polyorganosiloxane having vinyl groups at the terminals and side chains. The antireflection film for sticking according to claim 1. The sticking antireflection film according to claim 1, wherein the intermediate layer is an intermediate layer having an antistatic function, and is made of carbon nanotubes and acrylic polyol. 3. The intermediate layer according to claim 1 or 2, wherein the intermediate layer is an intermediate layer having an antistatic function, and is made of a conductive polymer selected from at least one of polyaniline, polythiophene, polypyrrole, and polyquinoxaline and an acrylic polyol. Anti-reflection film for sticking. The sticking antireflection film according to claim 1, wherein the transparent substrate is a polyester film.