Transfer film and anti-glare molded product

Abstract

To simultaneously realize transparency and antiglare properties in a transfer film capable of transferring a transfer layer having a surface protective layer onto a transfer-target body.SOLUTION: A transfer film includes a base material film and a transfer layer. The transfer layer includes a surface protective layer and an adhesion layer. The surface protective layer constitutes a surface layer at a base material film side on the transfer layer. A haze is 5% to 30% with regard to a test piece obtained by transferring the transfer layer onto a polycarbonate plate of 2 mm thick. In the transfer film, 60-degree specular glossiness is 60% to 120% when measured at a surface protective layer face of the test piece.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a transfer film and an antiglare molded article. [Background technology]

[0002] In order to impart scratch resistance to the molded body, a surface protection layer is provided on the surface of the molded body. The surface protection layer is formed, for example, by coating or by using a transfer film. (See, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-345228 Summary of the Invention [Problem to be solved by the invention]

[0004] Molded products used outdoors require transparency depending on the application, and transparency is also important. In addition, it may be desirable for the film to also have anti-glare properties. They have investigated ways to improve the anti-glare properties by using an anti-glare film. According to the study by the present inventors, it is possible to obtain extremely high anti-glare properties for outdoor use by using a transfer film. When applied to a feature, it was found that the transparency required for outdoor applications was not sufficient.

[0005] One object of the present disclosure is to provide a transfer filter capable of transferring a transfer layer having a surface protective layer onto a transfer target. The objective of this project is to achieve both transparency and anti-glare properties in the film. [Means for solving the problem]

[0006] The transfer film of the present disclosure has a substrate film and a transfer layer, and the transfer layer has a surface protective layer and The transfer layer has an adhesive layer, and the surface protective layer constitutes the surface layer of the transfer layer on the substrate film side. The haze of the test piece obtained by transferring it to a 2 mm thick polycarbonate plate is 5% or more and 30% or less. The 60-degree specular gloss measured on the surface protective layer of the test specimen is 60% or more. It is below 0%. The antiglare molded article of the present disclosure comprises a molded article and a surface treatment agent provided on at least a part of the surface of the molded article. and a surface protection film, the surface protection film being a transfer layer in the transfer film. Thus, the surface protective layer in the transfer layer constitutes at least a part of the surface layer of the antiglare molded article. [Effects of the Invention]

[0007] According to the present disclosure, a transfer film capable of transferring a transfer layer having a surface protective layer onto a transfer target is provided. In this case, both transparency and antiglare properties can be achieved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic cross-sectional view of one embodiment of the transfer film of the present disclosure. [Figure 2] FIG. 2 is a schematic cross-sectional view of one embodiment of the transfer film of the present disclosure. [Figure 3] FIG. 3 is a schematic cross-sectional view of one embodiment of the antiglare molded article of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the transfer film and the like of the present disclosure will be described in detail. The film and the like can be implemented in many different forms, and are not limited to the description of the following exemplary embodiments. In order to clarify the description, the drawings are made smaller than the embodiments in terms of the width, thickness and other characteristics of each layer. Although the shapes and the like may be shown schematically, they are merely examples and should not be construed as limiting the scope of the present disclosure. In this specification and each figure, the same as that already explained in the previous figures is not limited to the interpretation of the photographic film, etc. The same elements as those described above are denoted by the same reference numerals, and detailed descriptions thereof may be omitted as appropriate. do.

[0010] Each component (e.g., resin material, curable resin, particles, additives, Weather resistance improver, silicone compound, adhesive resin and organic solvent) can be used alone. Preferably, two or more types may be used.

[0011] The transfer film of the present disclosure has a substrate film and a transfer layer. The transfer layer is provided on the surface of the substrate film so as to be peelable. The surface protective layer is a surface layer on the substrate film side of the transfer layer. Configure.

[0012] The configuration of one embodiment of the transfer film of the present disclosure is shown in FIGS. The transfer film 1 in FIG. 1 is a substrate film 10 and is provided on the substrate film 10 in a peelable manner. The transfer layer 20 has a surface protection layer 22 and an adhesive layer 24 attached to the substrate. The film 10 is provided in this order in the thickness direction. The layer 22 and the adhesive layer 24 are stacked in the thickness direction, which is the vertical direction in the plane of FIG. do.

[0013] The transfer layer 20 in the transfer film 1 of FIG. 2 is formed between the surface protection layer 22 and the adhesive layer 24. The transfer layer 20 has a surface protection layer 22, a primer layer 23, and an adhesive layer. The layer 24 is arranged in this order from the substrate film 10 side in the thickness direction. 10, the surface protection layer 22, the primer layer 23 and the adhesive layer 24 are arranged in the vertical direction on the paper surface of FIG. The layers are stacked in the thickness direction, which is the direction of the sheet.

[0014] In the transfer film of the present disclosure, the transfer layer is different from the surface protective layer, the primer layer, and the adhesive layer. The other layers may be selected from known layers as appropriate. This can be done.

[0015] The transfer film of the present disclosure is obtained by transferring a transfer layer onto a polycarbonate plate having a thickness of 2 mm. The haze of the test piece is 5% or more and 30% or less, and the haze is measured on the surface of the surface protection layer of the test piece. The transfer film of the present disclosure is characterized in that the 60-degree specular gloss is 60% or more and 120% or less. By using a film, it is possible to obtain optical properties such as an excellent balance of haze and gloss. A transfer layer can be formed on a molded body, which is a transfer target body, thereby ensuring the transparency of the molded body. At the same time, the anti-glare properties can be improved.

[0016] The above optical properties are suitable for molded articles that are used outdoors and require transparency and anti-glare properties. For example, transparent panels that constitute soundproof walls or windbreaks installed on general roads and expressways, etc. It is desirable that the resin molded article has both transparency and antiglare properties. The level of visibility of the background is excellent so that drivers of motor vehicles can avoid drowsiness, and anti-glare properties are also required. The transfer filter of the present disclosure is capable of suppressing the reflection of sunlight that affects the surrounding environment. The transfer layer is transferred onto the transparent resin molded body using a film, thereby It is possible to improve antiglare properties while maintaining brightness.

[0017] In the present disclosure, the haze, 60-degree specular gloss and total light transmittance of the transfer film The optical properties such as the above are measured as follows. First, a 2 mm thick polycarbonate film is used as the transfer target. Recarbonate plate (haze: 0.8%, total light transmittance: 88.4%, 60-degree specular gloss: 170.0%) is prepared. On one side of this polycarbonate plate, the adhesive layer of the transfer film is The transfer film is attached so that it is in contact with the polycarbonate plate. Next, the transfer film is The base film is then peeled off from the polycarbonate plate. A test piece having a transfer layer transferred onto a base plate is obtained. The obtained test piece was used to measure the haze, 60-degree specular gloss and total light Evaluate optical properties such as transmittance.

[0018] In the transfer film of the present disclosure, the transfer film before the weather resistance test described later has haze and 6 It is sufficient that the requirements for 0-degree specular gloss are met. In the film, the transfer film after the weather resistance test described below was evaluated for haze and 60-degree specular gloss. It is preferable that the requirements are met.

[0019] In the transfer film of the present disclosure, the haze is 5% or more and 30% or less, and preferably 5% or more and 26% or less, more preferably 5% or more and 20% or less, and even more preferably 5% or more and 1 When the haze is in the above range, for example, the antiglare property and transparency of the surface protective layer can be improved. In the present disclosure, the haze is measured by measuring the haze of a polycarbonate film in accordance with JIS K7105. The test piece is placed so that the carbon plate faces the receiver and the surface protection layer faces the light source. do.

[0020] In the transfer film of the present disclosure, the 60-degree specular gloss (Gs60°) is 60% or more. 20% or less, preferably 60% or more and 105% or less, more preferably 80% or more and 10 When Gs60° is in the above range, for example, the antiglare property and It has an excellent balance of transparency. In this disclosure, Gs60° is in accordance with JIS Z8741. The surface of the surface protection layer of the test piece is measured at an incident angle of 60 degrees.

[0021] In the transfer film of the present disclosure, the total light transmittance is preferably 80% or more, more preferably The total light transmittance is preferably 82% or more, and more preferably 84% or more. However, the upper limit may be, for example, 98% or 95%. The light transmittance is measured in accordance with JIS K7105.

[0022] In the transfer film of the present disclosure, the maximum height R of the surface protective layer on the surface on the substrate film side z is preferably 0.5 μm or more and 3 μm or less, more preferably 0.6 μm or more and 2.5 μm or less More preferably, the thickness is 0.7 μm or more and 1.8 μm or less. The surface protective layer can further improve the balance between antiglare properties and transparency.

[0023] In the transfer film of the present disclosure, the arithmetic mean roughness of the surface protective layer on the surface on the substrate film side is The thickness Ra is preferably 2 μm or less, more preferably 1.5 μm or less, and even more preferably 1 The lower limit of Ra is not particularly limited, but For example, it may be 0.05 μm. When Ra is in the above range, for example, the antiglare properties of the surface protective layer are improved. Excellent.

[0024] In the transfer film of the present disclosure, the roughness curve of the surface of the surface protection layer on the substrate film side is The average length RSm of the element is preferably 10 μm or more and 60 μm or less, more preferably 20 μm or less. The thickness is preferably from 30 μm to 55 μm, and more preferably from 30 μm to 50 μm. The above Rz, Ra and RSm are measured in accordance with JIS B0601-2001.

[0025] In the transfer film of the present disclosure, the transfer layer is a surface protection film on a molded body that is a transfer target. By using the transfer film of the present disclosure, for example, it is possible to obtain an excellent molded product. The transfer film of the present disclosure can provide excellent anti-glare properties, scratch resistance, weather resistance, etc. For example, when used in applications where severe weather resistance is required, such as when exposed to direct sunlight or wind and rain. This method can be suitably applied to molded articles that can be used.

[0026] By using the transfer film of the present disclosure, there is no emission of organic solvents in the transfer process. A surface protection layer can be easily formed on at least a portion of the surface of a molded body using an environmentally friendly process. can.

[0027] The configuration of the transfer film of the present disclosure will be described in detail below.

[0028] The transfer film of the present disclosure has a substrate film. The base film may be, for example, a film made of a resin material (hereinafter referred to as a "resin film"). Examples of resin materials that can be used include polyester and polyolefin. polystyrene, vinyl resin, (meth)acrylic resin, polyamide, polyimide and In the present disclosure, "(meth)acrylic" refers to "acrylic " and "methacrylic", and "(meth)acrylate" includes "acrylate" and "methacrylate."

[0029] As the substrate film, polyester film and polyolefin film are preferred. When the base film is one of these films, for example, a surface protection film can be formed on the film. Layers and the like can be easily formed.

[0030] Examples of polyester include polyethylene terephthalate (PET) and polybutylene. Polyethylene terephthalate (PBT), polyethylene naphthalate (PEN) and polyethylene terephthalate Among these, transfer film is PE is used because it is less likely to shrink due to heat during manufacturing or exposure to ionizing radiation. PBT and PBT are preferred, with PET being more preferred.

[0031] Examples of polyolefins include polyethylene, polypropylene, polybutene, and ethylene. Examples of the copolymer include ethylene-propylene copolymer and ethylene-propylene-butene copolymer. Among these, thermal shrinkage occurs during the production of transfer film and shrinkage occurs due to exposure to ionizing radiation. Polypropylene is preferred from the viewpoint of resistance to cracking.

[0032] The resin film may be a stretched film or a non-stretched film, but a stretched film is preferred. In the stretched film, the machine direction (MD) and / or the transverse direction (TD) The stretching ratio is, for example, 5 times or more and 30 times or less. For example, the resin film caused by the heat treatment during the production of the transfer film may be damaged. This can suppress the thermal shrinkage of the resin film caused by the cross-linking treatment due to the irradiation of ionizing radiation. This improves the dimensional stability of the transfer film.

[0033] The stretched film may be a uniaxially stretched film or a biaxially stretched film. From the viewpoint of being less susceptible to thermal shrinkage during manufacturing and shrinkage due to exposure to ionizing radiation, Biaxially oriented films are preferred.

[0034] The haze of the substrate film is preferably 10% or more, more preferably 20% or more and 80% or less. The haze is preferably in the range of 25% or more and more preferably 60% or less. This can impart good antiglare properties and transparency to the surface protective layer.

[0035] The 60-degree specular gloss (Gs60°) of the base film is preferably 140% or less, more preferably Preferably, it is 25% or more and 120% or less, more preferably, it is 30% or more and 110% or less, and even more preferably, it is 30% or more and 110% or less. Preferably, the Gs60° is 40% or more and 100% or less. When the Gs60° is in the above range, for example, It is possible to impart good antiglare properties and transparency to the surface protective layer.

[0036] The total light transmittance of the substrate film is preferably 75% or more, more preferably 80% or more. The upper limit of the total light transmittance is not particularly limited, but for example, It may be 98% or 95%.

[0037] By forming a surface protective layer on a substrate film having the above optical properties, for example, The surface of the surface protective layer can be shaped according to the surface shape of the base film. This improves the anti-glare properties compared to when using a shaped embossing roll. The antiglare properties can be improved by a simple method.

[0038] The maximum height Rz of the surface of the base film on which the surface protective layer is provided is preferably 0. 4 μm or more and 2.7 μm or less, more preferably 0.5 μm or more and 2.3 μm or less, and even more preferably Or, it is 0.7 μm or more and 1.8 μm or less.

[0039] The arithmetic mean roughness Ra of the surface of the substrate film on which the surface protective layer is provided is preferably 0.03 μm or more and 0.4 μm or less, more preferably 0.05 μm or more and 0.3 μm or less, More preferably, it is 0.08 μm or more and 0.2 μm or less.

[0040] The average length RSm of the roughness curve element of the surface on which the surface protective layer of the base film is provided is , preferably 30.0 μm or more and 70.0 μm or less, more preferably 35.0 μm or more and 60 0.0 μm or less, and more preferably 40.0 μm or more and 50.0 μm or less. The above Rz, Ra and RSm are measured in accordance with JIS B0601-2001.

[0041] By forming a surface protection layer on the substrate film having the above-described uneven structure on the surface, For example, the surface of the surface protection layer can be shaped by the above-mentioned uneven structure, and therefore, the protection by the surface protection layer can be improved. This allows for a simpler and more efficient process compared to using a shaped embossing roll. The antiglare properties can be improved in this way.

[0042] The substrate film may have a single layer structure or a multilayer structure. For example, it may be a single layer of resin film or a laminate of resin films. The laminate of the rubber can be produced by, for example, a dry lamination method, a wet lamination method or an extrusion method. It can be produced by utilizing the trusion method.

[0043] The surface of the base film on which the surface protective layer is to be formed may be treated with a known release agent, if necessary. The surface may be treated with a release layer such as a silicone resin. This can improve, for example, the releasability between the surface protection layer and the substrate film during transfer.

[0044] The thickness of the substrate film is preferably 5 μm or more and 200 μm or less, more preferably 10 μm or less. When the base film has a multilayer structure, the thickness of the entire multilayer structure is The thickness is preferably within the above range.

[0045] The transfer film of the present disclosure has a surface protective layer. The surface protective layer is transferred onto the molded body, which is the transfer target, via the adhesive layer, and then the resulting anti-glare The surface protective layer is a layer that constitutes the surface layer of the protective molded article. For example, the surface protective layer is a layer that provides anti-glare properties to the object to be transferred. In one embodiment, the layer may further provide scratch resistance and weather resistance. In one embodiment, the surface protective layer is in contact with the base film.

[0046] In one embodiment, the surface protective layer contains a cured product of a curable resin. In one embodiment, the curable resin composition is a cured product containing a curable resin. This can improve scratch resistance, for example.

[0047] Examples of the curable resin include a thermosetting resin and an ionizing radiation curable resin. Among these, ionizing radiation curable resins are preferred from the viewpoint of improving scratch resistance and weather resistance. It's nice.

[0048] Examples of thermosetting resins include unsaturated polyester, thermosetting polyurethane, and thermosetting (Meth)acrylic resin, epoxy resin, aminoalkyd resin, melamine resin, guanine Examples include amine resins and urea resins.

[0049] Ionizing radiation curable resins are resins that are cured when irradiated with ionizing radiation. Examples of such radiation include ultraviolet (UV), X-rays, and gamma rays; electron beams (EB), alpha rays, and other electromagnetic waves. and charged particle beams such as ion beams. Among these, ultraviolet rays and electron beams are preferred. In other words, the surface protective layer is made of a resin cured by irradiation with an electron beam. Preferably, it is a layer.

[0050] Examples of the ionizing radiation curable resin include polymerizable oligomers and polymerizable prepolymers. Examples of the polymerizable oligomer and polymerizable prepolymer include those having a radical in the molecule. Examples of the polymerizable unsaturated group include oligomers and prepolymers. Polycarbonate-based urethane (meth)acrylate acrylate, polyester-based urethane (meth)acrylate and caprolactone-based urethane (meth)acrylate (meth)acrylates such as urethane (meth)acrylates and epoxy (meth)acrylates , polyester (meth)acrylate, polyether (meth)acrylate, acrylic ( Examples of such polybutadiene (meth)acrylates include polybutadiene (meth)acrylates. Of these, urethane (meth)acrylate is preferred.

[0051] The polymerizable oligomer and polymerizable prepolymer have a radical polymerizable unsaturated group in the molecule. A polyfunctional oligomer or prepolymer having a plurality of radical polymerizable unsaturated groups is preferred. The number is preferably 2 or more from the viewpoint of improving scratch resistance and preventing shrinkage on curing. It is 15 or less, more preferably 2 or more and 8 or less, and further preferably 2 or more and 6 or less.

[0052] The content of the cured product of the curable resin in the surface protective layer is preferably 50% by mass or more, more preferably 50% by mass or more. It is more preferably 60% by mass or more, and further preferably 70% by mass or more. For example, the scratch resistance and weather resistance of the surface protective layer can be further improved.

[0053] When an ultraviolet curable resin is used as the ionizing radiation curable resin, the ultraviolet curable resin and It is preferable to use a photopolymerization initiator in both cases. Examples of the photopolymerization initiator include acetone. phenone compounds, benzoin compounds, acylphosphine oxide compounds, benzophenone compounds Non-based compounds, thioxanthone-based compounds, and aminobenzophenone-based compounds are included. The amount of the photopolymerization initiator used is preferably 0.1 parts by mass relative to 100 parts by mass of the ultraviolet curable resin. It is equal to or greater than 5 parts by mass and equal to or less than 5 parts by mass.

[0054] For the purpose of adjusting the viscosity of the curable resin composition, a compound such as methyl (meth)acrylate is used. A monofunctional (meth)acrylate may be used as a diluent. In addition to (meth)acrylate, a common organic solvent may also be used.

[0055] The surface protective layer may further contain particles. This allows fine adjustment of the optical properties, such as gloss and haze, of the surface protective layer, and therefore the anti-glare properties. For example, the surface of the surface protection layer can be shaped by the uneven surface structure of the base film. The anti-glare property of the surface protective layer is adjusted, and further, particles are contained in the surface protective layer, The anti-glare properties may be finely adjusted by the use of a thin film.

[0056] Examples of the particles include organic particles and inorganic particles. For example, (meth)acrylic resin particles, polycarbonate resin particles, and styrene resin particles. Examples of inorganic particles include silica, alumina, and zirconia. , titania, kaolinite, iron oxide, diamond, and silicon carbide. In particular, the anti-glare properties of the surface protective layer can be suitably adjusted, and the transparency and scratch resistance can be improved. From this viewpoint, (meth)acrylic resin particles are preferred.

[0057] The particle shape may be, for example, spherical, ellipsoidal, polyhedral, or scale-like. A spherical shape is preferred from the viewpoint that it is easy to adjust the anti-glare property of the protective layer and to improve scratch resistance. Desirable.

[0058] The average particle size of the particles is preferably 1 μm or more and 10 μm or less, more preferably 1.5 μm. When the average particle size is within the above range, transparency is ensured and When particles with a large average particle size are used, the surface protective layer has excellent antiglare properties and scratch resistance. The haze tends to increase and the gloss tends to decrease.

[0059] In the present disclosure, the average particle size is determined by observing a cross section of each layer in the thickness direction using a scanning electron microscope (SEM). The average particle size measured for 100 randomly selected non-agglomerated particles observed at (arithmetic mean diameter).

[0060] The thickness of the surface protection layer is preferably 0.3 times or more and 4 times or less the average particle diameter of the particles, more preferably Preferably, it is 0.4 times or more and 3.5 times or less, and more preferably, it is 0.5 times or more and 3 times or less. Such a design can, for example, further improve the balance between antiglare properties and transparency.

[0061] The content of particles in the surface protective layer is preferably 100 parts by mass of the cured product of the curable resin. or 1 part by mass or more and 20 parts by mass or less, more preferably 3 parts by mass or more and 18 parts by mass or less, and further The content of the particles is preferably 5 parts by mass or more and 15 parts by mass or less. For example, the antiglare property, scratch resistance, and weather resistance can be further improved. For example, it is possible to suppress a decrease in weather resistance.

[0062] The surface protective layer may contain additives, such as a weather resistance improver, a silica Polycones, polymerization inhibitors, crosslinking agents, antistatic agents, adhesion improvers, antioxidants, leveling agents Examples of suitable additives include binders, thixotropic agents, coupling agents, plasticizers, antifouling agents, defoamers, and fillers. can be.

[0063] The surface protective layer may contain a weather resistance improver (hereinafter also referred to as "weather resistance agent"). Since the molded body is exposed to direct sunlight and wind and rain every day, weather resistance is required. By doing so, for example, the weather resistance of the surface protective layer can be improved, and thus the texture of the surface protective layer can be maintained. This allows the antiglare molded article described later to be maintained, yellowing to be suppressed, and interlayer adhesion to be improved. It can be used outdoors for a long period of time.

[0064] Examples of weather-resistant agents include ultraviolet absorbers and light stabilizers. The ultraviolet absorber absorbs harmful ultraviolet rays and improves the long-term weather resistance of the anti-glare molded product. Light stabilizers themselves do not absorb much ultraviolet light, but they do absorb harmful substances caused by ultraviolet light. It efficiently captures free radicals.

[0065] Examples of ultraviolet absorbers include benzotriazole-based ultraviolet absorbers and triazine-based ultraviolet absorbers. UV absorbers, benzophenone-based UV absorbers, oxybenzophenone-based UV absorbers, Lithium ion ester-based UV absorbers and cyano(meth)acrylate-based UV absorbers Organic UV absorbers; inorganic UV absorbers such as titanium dioxide, cerium oxide, and zinc oxide Among these, organic ultraviolet absorbers are preferred, and triazine ultraviolet absorbers are preferred. Absorbents are more preferred.

[0066] Examples of triazine-based ultraviolet absorbers include hydroxyphenyltriazine-based ultraviolet absorbers. Examples of hydroxyphenyltriazine-based ultraviolet absorbers include: 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4 ,6-bis(4-phenylphenyl)-1,3,5-triazine, 2-[4-[(2-phenyl hydroxy-3-dodecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6 -bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis[2- hydroxy-4-butoxyphenyl]-6-(2,4-dibutoxyphenyl)-1,3,5 -triazine, 2-[4-[(2-hydroxy-3-tridecyloxypropyl)oxy ]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3, 5-Triazine, 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5 -[2-(2-ethylhexanoyloxy)ethoxy]phenol, and 2-[4-[( 2-hydroxy-3-(2'-ethyl)hexyl)oxy]-2-hydroxyphenyl] -4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

[0067] The content of the ultraviolet absorber in the surface protection layer is based on 100 parts by mass of the cured product of the curable resin. Preferably, the amount is 0.1 parts by mass or more and 10 parts by mass or less, and more preferably, 0.1 parts by mass or more and 7 parts by mass or less. The amount is preferably 0.3 parts by mass or more and 5 parts by mass or less, and more preferably 0.3 parts by mass or more and 5 parts by mass or less. If the content of the ultraviolet absorber is equal to or less than the upper limit, the weather resistance of the surface protective layer can be improved. For example, the transparency of the surface protection layer may decrease, or the surface protection layer may become discolored due to bleeding out of the ultraviolet absorber. This can prevent a decrease in adhesion to the primer layer.

[0068] Examples of light stabilizers include hindered amine light stabilizers (HALS). Examples of the hindered amine light stabilizer include 1,2,2,6,6-pentamethyl- 4-Piperidinyl (meth)acrylate, bis(1,2,2,6,6-pentamethyl-4 -piperidyl) sebacate, bis(2,2,6,6-pentamethyl-4-piperidyl) sebacate sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, Methyl (1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, 2,4- Bis[N-butyl-N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidinyl] 6-(2-hydroxyethyl)-1,3,5-trimethyl-2-pyridin-4-ylamino Triazine, 2-(3,5-di-tert-butyl-4-hydroxybenzyl)-2'-n -butylmalonate bis(1,2,2,6,6-pentamethyl-4-piperidyl), bis( 1,2,2,6,6-Pentamethyl-4-piperidyl) sebacate, bis(1-octyl) 2,2,6,6-tetramethyl-4-piperidyl) sebacate, and tetrakis( 2,2,6,6-Tetramethyl-4-piperidyl)-1,2,3,4-butanetetracal Examples include carboxylate.

[0069] The content of the light stabilizer in the surface protective layer is, relative to 100 parts by mass of the cured product of the curable resin, Preferably, the amount is 1 part by mass or more and 10 parts by mass or less, more preferably 2 parts by mass or more and 8 parts by mass or less, The content is more preferably 3 parts by mass or more and 6 parts by mass or less. When the content of the light stabilizer is equal to or less than the upper limit, for example, the transparency of the surface protective layer can be improved. The adhesion between the surface protection layer and the primer layer is reduced due to the bleed-out of the light stabilizer. It can suppress the bottom.

[0070] The surface protective layer may contain a silicone compound. It is possible to improve the weather resistance and scratch resistance of the film and obtain excellent transparency.

[0071] Silicone compounds contain amino groups, epoxy groups, mercapto groups, carboxy groups, and hydroxyl groups. Siliconization without reactive functional groups such as acryloyl, (meth)acryloyl, and allyl groups It may be a silicone compound having a reactive functional group, or a silicone compound having a reactive functional group. Examples of the compound include silicone oil made of polysiloxane, polyether-modified silicone oil, and the like. Silicone oil, aralkyl-modified silicone oil, fluoroalkyl-modified silicone oil Long-chain alkyl-modified silicone oil, higher fatty acid ester-modified silicone oil, fatty acid amide-modified silicone oil and phenyl-modified silicone oil. Examples of the silicone compound having a reactive functional group include the resin that constitutes the surface protective layer. This prevents bleeding out over long-term use and maintains long-term weather resistance. From this viewpoint, silicone compounds having a (meth)acryloyl group are preferred.

[0072] The content of the silicone compound in the surface protection layer is 100 mass parts of the cured product of the curable resin. Preferably, the amount is 0.05 parts by mass or more and 30 parts by mass or less, more preferably 0.05 parts by mass The content is preferably from 0.1 to 5 parts by mass, more preferably from 0.1 to 5 parts by mass.

[0073] The curable resin composition may contain an organic solvent, for example, from the viewpoint of improving its coating properties. Examples of organic solvents include toluene, xylene, hexane, and octane. Any hydrocarbon solvent; ethanol, propanol, butanol, pentanol, hexano Alcohol-based solvents such as ethanol, octanol, and decanol; acetone, methyl ethyl ketone Ketones such as methyl isobutyl ketone, diisobutyl ketone, and cyclohexanone Solvents: ethyl acetate, butyl acetate, amyl acetate, ethyl butyrate, butyl butyrate, stearic acid Ester solvents such as butyl, methyl benzoate, methyl lactate, ethyl lactate, and butyl lactate Examples include:

[0074] The thickness of the surface protective layer is preferably 1 μm or more and 20 μm or less, more preferably 2 μm or more. The thickness is preferably 10 μm or less, and more preferably 2 μm or more and 6 μm or less. It is possible to impart excellent anti-glare properties, scratch resistance, and weather resistance to the transfer body. In the present disclosure, the thickness of each layer is This can be measured using scanning electron microscope (SEM) photographs of the cross section of each layer.

[0075] The surface protection layer is formed, for example, as follows: The material is applied to a desired thickness, and if an organic solvent is used, the organic solvent is removed by drying to form a coating film ( Next, if a thermosetting resin is used, the resin is heated at the temperature required for hardening. The coating film is heated to cure. When an ionizing radiation curable resin is used, the coating film is heated to cure. In this way, a surface protection layer can be formed. The step may be carried out after application of the reactive resin composition and before forming another layer, or after forming another layer. Good too.

[0076] The curable resin composition can be applied to the substrate film by, for example, a dipping method. , flow coating method, spray method, spin coating method, gravure coating method, microgravure Coating method, die coating method, slit reverse method, roll coating method, reverse roll coating method, comma coat method, blade coat method, air knife coat method, offset method and bar Examples of the method include a coating method.

[0077] When electron beams are used as ionizing radiation, the acceleration voltage depends on the resin and layer thickness used. The uncured resin layer is cured at an accelerating voltage of 70 kV or more and 300 kV or less. The irradiation dose of the electron beam is preferably 0.5 Mrad to 30Mrad. rad or less, more preferably 1 Mrad to 20 Mrad, and even more preferably 3 Mrad ad or more and 15 Mrad or less.

[0078] Examples of electron beam sources include Cockcroft-Walton type, Van de Graaff type, and resonant transformer various electron beams such as linear, dynamitron, and high frequency types, as well as insulated core transformer types An accelerator can be used.

[0079] When ultraviolet rays are used as ionizing radiation, for example, wavelengths of 190 nm or more and 380 nm or less are used. It is preferable to irradiate at least ultraviolet light. Examples of ultraviolet light sources include xenon lamps. low-pressure mercury lamp, high-pressure mercury lamp, ultra-high-pressure mercury lamp, metal halide lamp, carbon arc lamp and tungsten lamps.

[0080] The transfer film of the present disclosure may have a primer layer between the surface protective layer and the adhesive layer. The primer layer has the function of improving the adhesion between the surface protective layer and the adhesive layer, for example.

[0081] In one embodiment, the primer layer contains a resin material. Examples of the resin material include (meth)acrylic resin, urethane resin, butyral resin, Polyolefins, chlorinated polyolefins, vinyl chloride-vinyl acetate copolymers and polyesters Among these, urethane resins are preferred.

[0082] As for urethane resin, from the viewpoint of weather resistance and durability, A urethane resin having a (meth)acrylic skeleton is preferred. As the urethane resin having a (meth)acrylic skeleton, for example, a urethane component and a (meth)acrylic urethane (meth)acrylic copolymer, which is a copolymer with acrylic components, and polyurethane The polyol component or polyisocyanate component contains a hydroxy group or an isocyanate group. Among these, urethane resins are preferred. Preferred are urethane (meth)acrylic copolymers, and examples of urethane (meth)acrylic copolymers include: For example, a urethane (meth)acrylic block copolymer is preferred.

[0083] From the viewpoint of adhesion between the primer layer and the surface protection layer, a urethane (meth)acrylic copolymer The copolymer further includes a polycarbonate backbone or a polyester backbone in the polyurethane polymer chain. Such a urethane (meth)acrylic copolymer may include, for example, polycarbonate. Polycarbonate, a copolymer of a carbonate-based urethane component and a (meth)acrylic component Polyurethane (meth)acrylic copolymer, and polyester urethane component and (meth)acrylic Examples include polyester-based urethane (meth)acrylic copolymers, which are copolymers with acrylic components. can be.

[0084] The urethane (meth)acrylic copolymer, for example, has at least two hydroxyl groups in one molecule. A method of reacting a (meth)acrylic resin having a silyl group with a polyol and a polyisocyanate. (See Japanese Patent Application Laid-Open No. 6-100653, etc.), and urethane having unsaturated double bonds at both ends. A method of reacting a (meth)acrylic monomer with a prepolymer (JP-A-10-1524) This can be obtained by means of the following:

[0085] The urethane prepolymer may be, for example, a mixture of polycarbonate diol and diisocyanate. Polycarbonate-based urethane prepolymer obtained by reacting polyester with Polyester urethane prepolymer obtained by reacting diol with diisocyanate Examples of diisocyanates include hexamethylene diisocyanate. Aliphatic isocyanates such as isophorone diisocyanate and hydrogenated xylylene diisocyanate (Meth)acrylic monomers Examples of the alkyl groups include (meth)acrylic acid and alkyl groups having 1 to 6 carbon atoms. p) Acrylic acid alkyl esters are exemplified.

[0086] Specifically, the urethane resin is a polycarbonate-based urethane (meth)acrylic copolymer. Polymer, polyester-based urethane (meth)acrylic copolymer, polyether-based urethane ( Examples include methacrylic copolymers and caprolactone-based urethane (meth)acrylic copolymers. These resin materials improve weather resistance and adhesion between the surface protection layer and the adhesive layer. This is preferable from the viewpoint of

[0087] In the urethane resin, the urethane component / (meth)acrylic component (mass ratio) is preferably The ratio is preferably 20 / 80 or more and 99 / 1 or less, more preferably 50 / 50 or more and 95 / 5 or less, and even more preferably Preferably, the ratio is 70 / 30 or more and 95 / 5 or less. This allows, for example, weather resistance to be further improved. The content of the (meth)acrylic component in the urethane resin is based on the total mass of the urethane resin. It is the ratio of the monomer units that make up the (meth)acrylic skeleton. The content of (meth)acrylic components in the urethane resin was measured by NMR spectroscopy. The ratio of the peak area attributable to the (meth)acrylic component to the peak area was calculated. Therefore, it is calculated.

[0088] The weight average molecular weight of the urethane resin is preferably 10,000 or more and 100,000 or less. More preferably, it is 30,000 or more and 80,000 or less. The weight average molecular weight in this specification can be further improved by gel permeation chromatography. The value is calculated as a standard polystyrene equivalent value using gel permeation chromatography (GPC).

[0089] The content of the resin material in the primer layer is, for example, 50% by mass or more.

[0090] The primer layer may further contain particles. This allows, for example, During the production process or storage, blocking occurs, where the adhesive layer and the base film come into close contact with each other. can be suppressed.

[0091] Examples of the particles include inorganic particles and organic particles. For example, silica, alumina, aluminum hydroxide, barium sulfate, calcium carbonate, and and inorganic particles such as talc.

[0092] Examples of the particle shape of the particles include spherical, ellipsoidal, polyhedral, and scale-like shapes.

[0093] The average particle size of the particles is preferably 0.1 μm or more and 10 μm or less, more preferably 0.5 The average particle size is preferably 0.5 μm or more and 8 μm or less, and more preferably 0.5 μm or more and 5 μm or less. Within the above range, transparency is ensured and excellent anti-blocking properties are obtained. do.

[0094] The content of particles in the primer layer is preferably 0.05 to 100 parts by mass of the resin material. 0.1 part by mass or more and 30 parts by mass or less, more preferably 1 part by mass or more and 25 parts by mass or less, and even more preferably Preferably, the amount is 3 parts by mass or more and 20 parts by mass or less.

[0095] The primer layer may contain additives, such as weathering agents and abrasion resistance agents. property improver, infrared absorber, antistatic agent, adhesion improver, leveling agent, thixotropy imparting agent, Coupling agents, plasticizers, antifoaming agents, fillers and colorants are included.

[0096] The primer layer may contain a weathering agent. This improves the weather resistance of the primer layer, for example. The antiglare molding can be used outdoors for a long period of time. Examples of the ultraviolet absorber and light stabilizer include ultraviolet absorbers and light stabilizers. The details are as described above.

[0097] The content of the ultraviolet absorber is preferably 100 parts by mass of the resin material constituting the primer layer. Preferably, the amount is 0.1 parts by mass or more and 50 parts by mass or less, and more preferably, 3 parts by mass or more and 40 parts by mass or less. and more preferably 10 parts by mass or more and 35 parts by mass or less.

[0098] The content of the light stabilizer is preferably 100 parts by mass of the resin material constituting the primer layer. More preferably, 0.1 parts by mass or more and 15 parts by mass or less, more preferably 1 part by mass or more and 15 parts by mass or less, More preferably, it is 3 parts by mass or more and 10 parts by mass or less.

[0099] The resin composition for the primer layer may contain, for example, isocyanate, in order to promote curing of the resin material. The isocyanate curing agent may include, for example, tolylenediamine isocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, Xylylene diisocyanate, cyclohexane phenylene diisocyanate and naphthalene Examples of suitable olefin-based isocyanates include 1,5-dimethylaniline and 1,5-dimethylaniline.

[0100] The amount of isocyanate curing agent used in the resin composition for the primer layer is determined based on the amount of isocyanate curing agent that is in contact with the surface protective layer. From the viewpoint of improving the adhesion with the adhesive layer, it is preferable to use is 1 part by mass or more and 40 parts by mass or less, more preferably 3 parts by mass or more and 30 parts by mass or less, and even more preferably Preferably, the amount is 5 parts by mass or more and 30 parts by mass or less.

[0101] The thickness of the primer layer is preferably 0.1 μm or more and 10 μm or less, more preferably 0. This allows, for example, the surface protection layer and the adhesive layer to have better adhesion. The thickness of the primer layer is preferably smaller than the thickness of the adhesive layer.

[0102] The primer layer may be, for example, a primer containing the above-mentioned components and, if necessary, an organic solvent. The resin composition for the surface protective layer is applied onto the surface protective layer by a known printing method or coating method, and if necessary, The film can be formed by drying and curing according to the conditions.

[0103] In order to improve the adhesion between the surface protective layer and the primer layer, The surface protection layer may be subjected to a surface treatment. Examples of the surface treatment method include corona discharge treatment. These include heating, plasma treatment, chromium oxide treatment, flame treatment, hot air treatment, and ozone / ultraviolet treatment. It can be obtained.

[0104] In order to improve the adhesion between the surface protective layer and the primer layer, the surface protective layer is partially crosslinked and cured. The cured state is maintained, and then the resin composition for the primer layer is applied to the semi-cured surface protection layer. After the application, the surface protective layer may be completely cured by irradiating it with ionizing radiation.

[0105] The transfer film of the present disclosure has an adhesive layer. The adhesive layer has a function of adhering the transfer film to the surface of the object to be transferred. The adhesive layer constitutes the surface layer of the transfer layer on the side opposite to the substrate film side. This is the layer that comes into contact with the object to be transferred after transfer. This allows the transfer layer to be transferred to the object to be transferred well. Can be attached.

[0106] In the present disclosure, the transfer film is attached to the surface of the transfer object so that the adhesive layer is in contact with the surface of the transfer object. The surface protective layer is then transferred from the transfer film by peeling off the base film. It can be transferred onto the subject with good adhesion.

[0107] Examples of adhesive resins that can be used in the adhesive layer include (meth)acrylic resins and polyolefins. Polyolefin, chlorinated polyolefin, vinyl chloride-vinyl acetate copolymer, polyamide, polyester Heat-sealing resins such as terephthalate, chlorinated rubber, urethane resin, epoxy resin and styrene resin are Among these, polymethyl methacrylate and the like are preferred from the viewpoint of improving weather resistance. (Meth)acrylic resins are preferred.

[0108] The content of the adhesive resin in the adhesive layer is preferably 50% by mass or more, more preferably It is preferably 60% by mass or more, and more preferably 70% by mass or more.

[0109] The adhesive layer may contain additives, such as ultraviolet absorbers and light stabilizers. Weathering agents such as stabilizers, abrasion resistance improvers, infrared absorbers, antistatic agents, adhesion improvers, leveling agents Examples of the additives include a blocking agent, a thixotropic agent, a coupling agent, a plasticizer, an antifoaming agent, a filler, and a colorant. can be.

[0110] The adhesive layer may contain a weather resistant agent, the details of which are as described above. The content of the ultraviolet absorber in the adhesive layer is 0.1 mass parts per 100 mass parts of adhesive resin. It may be 1 part by mass or more and 25 parts by mass or less, or 1 part by mass or more and 20 parts by mass or less, or 3 parts by mass or more The content of the light stabilizer in the adhesive layer may be 15 parts by mass or less per 100 parts by mass of the adhesive resin. It may be 0.05 parts by mass or more and 7 parts by mass or less, and 0.5 parts by mass or more and 5 parts by mass or less. It may be 1 part by mass or more and 5 parts by mass or less.

[0111] The thickness of the adhesive layer is preferably 1 μm or more and 12 μm or less, more preferably 1 μm or more and 6 μm or less. This allows, for example, the transfer layer to be well adhered to the transfer target, and also provides excellent Transparency can be ensured.

[0112] The thickness of the adhesive layer is preferably greater than the thickness of the primer layer.

[0113] The adhesive layer is, for example, a composition containing components constituting the adhesive layer on the surface protective layer or the primer layer. The adhesive layer can be formed by applying a composition (adhesive layer composition) to the surface of the substrate and drying it as necessary.

[0114] The transfer film of the present disclosure may have a cover film (protective film) on the adhesive layer. Specifically, a cover film may be attached on the adhesive layer. This provides excellent surface protection and is ideal for storing transfer film. The cover film is peeled off from the adhesive layer to expose the adhesive layer, and the transfer target is then attached to the adhesive layer. Apply the transfer film to the body.

[0115] The cover film is made of a resin material such as polyolefin.

[0116] The antiglare molded article of the present disclosure comprises a molded article and a The surface protection film is a transfer film in the transfer film of the present disclosure. The surface protective layer included in the transfer layer constitutes at least a part of the surface layer of the antiglare molded article. do.

[0117] In one embodiment, as shown in FIG. 3, the antiglare molded body 2 comprises a molded body 30 and a molded body 3 3, the transfer layer 20 is disposed on the surface of the substrate 1. The adhesive layer 24, the primer layer 23, and the surface protection layer 22 are provided in this order from the molded body 30 side. Therefore, the antiglare molded body 2 has the adhesive layer 24, the primer layer 23 and the like on the molded body 30. and a surface protective layer 22 in this order. The substrate film 10 uses an antiglare molded article 2 It is sufficient if the film is peeled off at the time of application.

[0118] The above-mentioned molded article is a recipient onto which the transfer layer of the transfer film of the present disclosure is transferred. The material of the portion of the molded body to which the transfer layer of the transfer film of the present disclosure is transferred may be: For example, resin materials are used. Examples of resin materials include polycarbonate; (Meth)acrylic resins such as poly(meth)acrylate and poly(meth)acrylate; Polyolefins such as polyethylene and polypropylene; cyclic polyolefins; polystyrene Acrylonitrile-butadiene-styrene (ABS) copolymer; Polyvinyl alcohol vinyl resins such as polyvinyl acetate, polyvinyl chloride and polyvinyl fluoride; Polyesters such as polyethylene terephthalate and polyethylene naphthalate; polyamides; Polyimide, polysulfone, polyethersulfone, polyetherketone and polyether Examples of suitable amines include amines.

[0119] The molded body is preferably a resin molded body made of a resin material, and more preferably a transparent resin material. The transparent resin molding is more preferably formed by the following. The total light transmittance of the transparent resin molding is, for example, For example, it is 50% or more, may be 70% or more, or may be 80% or more.

[0120] Examples of transparent resin materials include polycarbonate and polymethyl methacrylate. (Meth)acrylic resins; polyethylene terephthalate, polyethylene naphthalate, etc. Polyester; ABS copolymer. Among these, polycarbonate is It is preferable because it has excellent transparency and impact resistance.

[0121] The molded article is used outdoors, for example, and is particularly exposed to direct sunlight, wind and rain daily, so it is necessary to have weather resistance. The molded article is suitable for a variety of applications, including exterior materials for building structures, automobiles, and the like. Exterior materials for ships and aircraft, exterior materials for industrial machinery, solar cell covers or solar cell substrates components, as well as various lenses.

[0122] As exterior materials (building materials) for building structures, for example, soundproofing for general roads and expressways, etc. Transparent resin moldings that make up walls or windbreaks, window materials, balcony partitions, terraces or car Examples of the materials include roofing members for ports and transparent resin molded articles that constitute agricultural greenhouses.

[0123] In one embodiment, the antiglare molded article of the present disclosure has excellent transparency and antiglare properties, Particularly as a transparent resin molding that constitutes a soundproof wall or windbreak wall on general roads and expressways, etc. It is suitable.

[0124] Examples of exterior materials for vehicles include side windows, rear windows, and roof windows. Window materials such as front windows and quarter windows; headlight covers, Examples of vehicles include automobiles, trains, and Examples include road vehicles, construction machinery, and light vehicles such as golf carts. Examples of the lens include a window material for viewing in a machine tool. One example is the lens of a traffic light.

[0125] The antiglare molded article of the present disclosure can be produced, for example, by using the transfer film of the present disclosure. The transfer layer is obtained by transferring the transfer layer onto at least a part of the surface of the molded body. The transfer film of the present disclosure is formed so that the adhesive layer is in contact with the surface of the molded article. and disposing the material on at least a portion of the surface of the feature, the disposing being performed under heat and / or pressure. Next, the substrate film in the transfer film is removed from the transfer layer, specifically, the surface The antiglare molded article is thus obtained. For example, a thermal transfer method such as a roll transfer method or a press transfer method, or an in-mold molding method can be used. do.

[0126] The base film is not immediately peeled off from the transfer layer and is used as a protective film for the anti-glare molded product. In such a case, the substrate film may be removed from the transfer layer before using the antiglare molded article. It is enough to peel it off.

[0127] After the transfer film is placed on the surface of the molded body, the obtained antiglare molded body is further subjected to bending. The processing may be carried out either before or after peeling off the base film. You can leave it there or go there.

[0128] The antiglare molded article of the present disclosure can be manufactured by, for example, simultaneously forming the molded article and disposing the transfer film. For example, a resin may be injected onto the adhesive layer of the transfer film to form the transfer film. The film and the resin molded body (injection molded body) are integrated. Next, the base film is removed from the transfer layer. In this case, the resin molded body may be formed by, for example, an in-mold molding method, Insert molding, simultaneous injection molding and decoration, blow molding, and gas injection molding Examples of injection molding methods include:

[0129] The present disclosure relates to, for example, the following [1] to [9]. [1] A transfer film having a substrate film and a transfer layer, wherein the transfer layer is a surface protective layer. and an adhesive layer, the surface protective layer constitutes the surface layer of the transfer layer on the substrate film side, The haze of the test piece obtained by transferring the layer to a 2 mm thick polycarbonate plate is 5% or more. % or less, and the 60-degree specular gloss measured on the surface protective layer of the test piece is 60% or more Transfer film, which is not more than 120%. [2] The substrate film and the surface protective layer of the transfer layer are in contact with each other, as described in [1] above. of transfer film. [3] The maximum height Rz of the surface protective layer on the surface on the base film side is 0.5 μm or more. The transfer film according to [1] or [2] above, having a thickness of 1 μm or less. [4] The surface protective layer contains particles having an average particle size of 1 μm or more and 10 μm or less. The transfer film according to any one of [1] to [3]. [5] The above [1] to [4] further have a primer layer between the surface protective layer and the adhesive layer. ] A transfer film described in any one of the above. [6] Either one or both of the surface protective layer and the adhesive layer contains a weather resistance improver. The transfer film according to any one of [1] to [5]. [7] The transfer film according to [5] above, wherein the primer layer contains a weather resistance improver. [8] An upper layer for transferring the transfer layer onto at least a portion of the surface of a molded body for outdoor use. The transfer film according to any one of [1] to [7]. [9] A molded body, and a surface protective film provided on at least a portion of the surface of the molded body; The antiglare molded article has a surface protective film according to any one of the above [1] to [8]. The transfer film according to claim 1, wherein the surface protective layer of the transfer layer is an antiglare molded article. The antiglare molded article comprises at least a part of the surface layer. [Example]

[0130] The transfer film of the present disclosure will be described below based on examples. In the following description, "parts by mass" will be simply referred to as "parts". do.

[0131] [Example 1] The base film is a 50 μm thick polyethylene terephthalate film (PET film). The haze (Hz) of the PET film was 30% and the total light transmittance (T t) is 85%, 60 degree specular gloss is 86%, Ra is 0.1 μm, and Rz is 0.8 μm and RSm is 45.8 μm.

[0132] The following curable resin composition for a surface protective layer was applied to one surface of the substrate film, and the uncured A resin layer was formed. The uncured resin was irradiated with an electron beam under conditions of 90 kV and 7 Mrad (70 kGy). The resin layer was irradiated to crosslink and harden it, forming a surface protective layer having a thickness of 3 μm. After subjecting the surface to a corona discharge treatment, the following resin composition for a primer layer was applied to the surface to a thickness of A 3 μm thick primer layer was formed. A heat-sealing resin (acrylic resin) was applied on the primer layer. The adhesive layer was then spread over the film to form a 4 μm thick adhesive layer. In this way, a transfer film was obtained. The film is made up of a PET film as a base film and a transfer film provided on the PET film. The transfer layer has a surface protective layer, a primer layer, and an adhesive layer.

[0133] <Curable resin composition for surface protective layer> hardening resin 60 parts hexafunctional urethane (meth)acrylate Caprolactone-based urethane (meth)acrylate 40 parts The following materials were added to 100 parts of the above curable resin. UV absorber 1.5 parts (Tinuvin 479 (trade name), 2-(2-hydroxy-4-[1-octyloxycarbonyl] [4-(4-phenylphenyl)-1,3,5-diphenylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-diol Liagin, BASF Japan Ltd.) Light stabilizer 3 parts (Sanol LS-3410 (trade name), 1,2,2,6,6-pentamethyl-4-piperidine Lysinyl methacrylate, Nippon Nyukazai Co., Ltd.) Non-reactive silicone compound 0.2 parts (Polyether modified silicone oil) ·2 parts of particles (Silica particles, average particle size: 2 μm)

[0134] <Resin composition for primer layer> Polycarbonate-based urethane (meth)acrylic copolymer 100 parts (Urethane component and (meth)acrylic component in polycarbonate-based urethane acrylic copolymer) The mass ratio of the silane component is 70 / 30. Hydroxyphenyltriazine UV absorber 17 parts (Tinuvin 400 (trade name), 2-[4-[(2-hydroxy-3-dodecyloxypropyl) -4,6-bis(2,4-dimethylphenyl)-4,6-bis(hydroxyphenyl)-2-hydroxyphenyl (Iron-1,3,5-triazine, BASF Japan Ltd.) Hydroxyphenyltriazine UV absorber 13 parts (Tinuvin 479 (trade name), 2-(2-hydroxy-4-[1-octyloxycarbonyl] [4-(4-phenylphenyl)-1,3,5-diphenylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-diol Liagin, BASF Japan Ltd.) Hindered amine light stabilizer 8 parts (Tinuvin 123 (trade name), bis(1-octyloxy-2,2,6,6-tetramethyl) (4-piperidyl) sebacate, BASF Japan Ltd. Anti-blocking agent 9 parts (Silica particles, average particle size: 3 μm) 25 parts hardener (hexanemethylene diisocyanate)

[0135] [Example 2] As a base film, it has a haze of 72%, a total light transmittance of 85%, and a 60-degree specular gloss of 4. 9%, Ra is 0.2μm, Rz is 1.4μm, RSm is 67.1μm, thickness is 50μ A transfer film was obtained in the same manner as in Example 1, except that a PET film of 100 mm was used.

[0136] [Example 3] The curable resin composition for the surface protective layer further contains (meth)acrylic resin particles (average particle diameter: 2 μm A transfer film was obtained in the same manner as in Example 2, except that 10 parts of methylcellulose (m) was added.

[0137] [Example 4] The curable resin composition for the surface protective layer further contains (meth)acrylic resin particles (average particle diameter: 6 μ A transfer film was obtained in the same manner as in Example 2, except that 10 parts of methylcellulose (m) was added.

[0138] [Comparative Example 1] As a base film, the haze is 2.3%, the total light transmittance is 88%, and the 60-degree specular gloss is 171%, Ra is 0μm, Rz is 0.2μm, RSm is 71.6μm, thickness is 50μ A transfer film was obtained in the same manner as in Example 1, except that a PET film of 100 mm was used.

[0139] Comparative Example 2 As a base film, it has a haze of 83%, a total light transmittance of 68%, and a 60-degree specular gloss of 1 4%, Ra is 0.4μm, Rz is 2.8μm, RSm is 41.0μm, thickness is 50μ A transfer film was obtained in the same manner as in Example 1, except that a PET film of 100 mm was used.

[0140] [Transcript] The transfer films obtained in the examples and comparative examples were transferred onto a 2 mm thick polycarbonate substrate. Nate board (haze: 0.8%, total light transmittance: 88.4%, 60-degree specular gloss: 170. 0%), with the adhesive layer of the transfer film in contact with the polycarbonate plate, at 160°C. The polycarbonate plate, adhesive layer, primer layer, and surface An anti-glare molded article with a substrate film was obtained, which had a surface protective layer and a substrate film in this order. The film was peeled off to obtain an antiglare molded article (test piece).

[0141] [Anti-glare] The obtained test piece was placed on a table with the surface protective layer facing up, and the anti-glare (anti-glare) The reflection of a 38W fluorescent lamp was visually evaluated on the following six-point scale for anti-glare and anti-glare properties. The distance between the fluorescent lamp and the test piece was 2m. 1 is better and 6 is poor. 1: The outline of the fluorescent light is completely indistinguishable. 2: The outline of the fluorescent light is barely discernible. 3: The outline of the fluorescent light can be barely discerned. 4: The fluorescent light is blurred, but the outline is still discernible. 5: The fluorescent light is barely blurred and the outlines are clearly discernible. 6: The fluorescent light is not blurred at all and the outlines are clearly distinguishable.

[0142] [Transparency] The obtained test piece was placed in a position where the surface protective layer faced the observer and the polycarbonate plate faced the photograph side. The distance between the observer and the test piece was set to 30 cm, and the test piece was placed between the observer and the photograph. The distance between the specimen and the photograph was 1 m. When the photograph was viewed from the surface protection layer side through the specimen, Transparency was evaluated based on the visibility of the photographs using the following 6-point scale, with 1 being better and 6 being poor. be. 1: The image in the photo can be clearly seen. 2: The photo image is barely blurred. 3: The photo image is slightly blurred. 4: The photo image is blurry overall. 5: The image in the photo is cloudy overall, but you can still recognize what the image is. 6: The photo image is cloudy overall and it is difficult to recognize what the image is.

[0143] [Weather resistance test] Ultra-accelerated weather resistance tester (manufactured by Iwasaki Electric Co., Ltd., product name: Eye Super UV Tester, model number The test was carried out using the following (A), (B) and (C) as one cycle. This cycle was repeated for each piece to perform a weather resistance test. The weathering test was carried out for 500 hours by repeating once. (A) Black panel temperature: 63°C, humidity: 50%RH, test piece Illuminance: 100mW / cm 2UV light is irradiated for 20 hours. (B) The test specimen is sprayed with water (shower) for 30 seconds. (C) The test piece is kept in an atmosphere of 98% RH for 4 hours. (No UV irradiation)

[0144] Glossiness The 60-degree specular gloss (Gs60°) of the base film and test piece is in accordance with JIS Z8741. In accordance with this standard, measurements were taken using a gloss meter (BYK "Micro Trigloss") at an incident angle of 60°. In the case of the test piece, the glossiness of the surface of the surface protection layer was measured.

[0145] [Total light transmittance, diffuse light transmittance and haze] Total light transmittance (Tt), diffuse light transmittance (Td) and haze of the base film and test piece (Hz) is measured using a haze meter (Toyo Seiki Seisakusho Co., Ltd.) in accordance with JIS K7105. The measurement was carried out using a direct reading haze meter manufactured by the company. The photodetector was placed facing the photodetector side, and the surface protection layer was placed facing the light source side.

[0146] [Surface shape] Arithmetic mean roughness Ra, maximum height Rz, and mean length of roughness curve elements of the base film and test piece RSm is a shape analysis laser microscope [Company name: The curve obtained by measuring the surface irregularities using Keyence's VK-X1000. In the case of test pieces, the surface of the surface protection layer was measured.

[0147] [Table 1] [Explanation of symbols]

[0148] 1...Transfer film 2...Anti-glare molded body 10...Base film 20...Transfer layer 22…Surface protective layer 23...Primer layer 24...Adhesive layer 30…Molded object (transferred object)

Claims

1. A transfer film having a base film and a transfer layer, the transfer layer has a surface protective layer and an adhesive layer, the surface protective layer constitutes a surface layer of the transfer layer on the substrate film side, a test piece obtained by transferring the transfer layer onto a polycarbonate plate having a thickness of 2 mm has a haze of 5% or more and 30% or less, and a 60-degree specular gloss measured on the surface of the surface protective layer of the test piece is 60% or more and 120% or less; A transfer film in which the haze of the test piece is 5% or more and 30% or less after a weather resistance test in which the following (A), (B), and (C) are one cycle and this cycle is repeated 21 times on the test piece. (A) Black panel temperature: 63°C, humidity: 50% RH, illuminance to test piece: 100 mW / cm 2 The sample was exposed to ultraviolet light for 20 hours. (B) The test piece is subjected to a water spray treatment (shower) for 30 seconds. (C) The test piece is kept in an atmosphere of 98% RH for 4 hours (without UV irradiation).

2. 2. The transfer film according to claim 1, wherein the 60-degree specular gloss measured on the surface of the surface protection layer of the test piece after the weather resistance test is 60% or more and 120% or less.

3. A transfer film having a base film and a transfer layer, the transfer layer has a surface protective layer and an adhesive layer, the surface protective layer constitutes a surface layer of the transfer layer on the substrate film side, a test piece obtained by transferring the transfer layer onto a polycarbonate plate having a thickness of 2 mm has a haze of 5% or more and 30% or less, and a 60-degree specular gloss measured on the surface of the surface protective layer of the test piece is 60% or more and 120% or less; A transfer film in which the 60-degree specular gloss measured on the surface of the surface protection layer of the test piece after a weather resistance test in which the following (A), (B), and (C) are one cycle and this cycle is repeated 21 times on the test piece is 60% or more and 120% or less. (A) Black panel temperature: 63°C, humidity: 50% RH, illuminance to test piece: 100 mW / cm 2 The sample was exposed to ultraviolet light for 20 hours. (B) The test piece is subjected to a water spray treatment (shower) for 30 seconds. (C) The test piece is kept in an atmosphere of 98% RH for 4 hours (without UV irradiation).

4. A transfer film having a base film and a transfer layer, the transfer layer has a surface protective layer and an adhesive layer, the surface protective layer constitutes a surface layer of the transfer layer on the substrate film side, a test piece obtained by transferring the transfer layer onto a polycarbonate plate having a thickness of 2 mm has a haze of 5% or more and 30% or less, and a 60-degree specular gloss measured on the surface of the surface protective layer of the test piece is 60% or more and 120% or less; A transfer film in which the haze of a test piece after a weather resistance test in which the following (A), (B), and (C) are one cycle and this cycle is repeated 21 times on the test piece is 87% or more of the haze before the weather resistance test. (A) Black panel temperature: 63°C, humidity: 50% RH, illuminance to test piece: 100 mW / cm 2 The sample was exposed to ultraviolet light for 20 hours. (B) The test piece is subjected to a water spray treatment (shower) for 30 seconds. (C) The test piece is kept in an atmosphere of 98% RH for 4 hours (without UV irradiation).

5. A transfer film as described in claim 4, wherein the ratio of the 60-degree specular gloss measured on the surface protection layer of the test piece after the weather resistance test to the 60-degree specular gloss before the weather resistance test is 91% or more.

6. A transfer film having a base film and a transfer layer, the transfer layer has a surface protective layer and an adhesive layer, the surface protective layer constitutes a surface layer of the transfer layer on the substrate film side, a test piece obtained by transferring the transfer layer onto a polycarbonate plate having a thickness of 2 mm has a haze of 5% or more and 30% or less, and a 60-degree specular gloss measured on the surface of the surface protective layer of the test piece is 60% or more and 120% or less; A transfer film in which the following (A), (B) and (C) constitute one cycle, and this cycle is repeated 21 times on the test piece, and the ratio of the 60-degree specular gloss measured on the surface protection layer of the test piece after the weather resistance test to the 60-degree specular gloss before the weather resistance test is 91% or more. (A) Black panel temperature: 63°C, humidity: 50% RH, illuminance to test piece: 100 mW / cm 2 The sample was exposed to ultraviolet light for 20 hours. (B) The test piece is subjected to a water spray treatment (shower) for 30 seconds. (C) The test piece is kept in an atmosphere of 98% RH for 4 hours (without UV irradiation).

7. The transfer film according to any one of claims 1 to 6, wherein the base film and the surface protective layer of the transfer layer are in contact with each other.

8. The transfer film according to any one of claims 1 to 7, wherein the maximum height Rz of the surface protective layer on the surface facing the base film is 0.5 µm or more and 3 µm or less.

9. The transfer film according to any one of claims 1 to 8, wherein the surface protection layer contains particles having an average particle size of 1 µm or more and 10 µm or less.

10. The transfer film according to any one of claims 1 to 9, further comprising a primer layer between the surface protection layer and the adhesive layer.

11. The transfer film according to claim 10 , wherein the primer layer contains a weather resistance improver.

12. The transfer film according to any one of claims 1 to 11, wherein the haze of the base film is 10% or more and 80% or less.

13. The transfer film according to any one of claims 1 to 12, for transferring the transfer layer onto at least a part of the surface of a molded body for outdoor use.

14. The transfer film according to claim 13, for transferring the transfer layer onto at least a part of the surface of a transparent resin molded body.

15. An antiglare molded body having a molded body and a surface protective film provided on at least a part of the surface of the molded body, The surface protective film is the transfer layer in the transfer film according to any one of claims 1 to 14, and the surface protective layer in the transfer layer constitutes at least a part of the surface layer of the antiglare molded body.

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