JP2000000912A - Glare protecting hard-coat film or sheet and production thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glare protecting hard-coat film or sheet having hard-coat properties excellent in optical properties and scratch resistance satisfying a glare protecting and sharp image reduced in glittering feeling in good balance and having surface hardness and chemical resistance. SOLUTION: In a hard-coat film wherein an active energy beam cured resin coating layer is provided at least on one surface of a transparent plastic film or sheet base material 1, a clear cured resin layer containing no inorg. or org. fine particles is provided on the base material as a first hard-coat layer 2 and a thin film of a cured resin containing inorg. or org. fine particles 4 is provided on the layer 2 as a second hard-coat layer 3 to produce a glare protecting hard-coat film or sheet being the active energy beam cured resin coating layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an antiglare hard coat film or sheet for various display devices, and more particularly, to a liquid crystal display device, a CRT (cathode ray tube) display device, a plasma display device, and an electrochromic display. The present invention relates to a hard coat film or sheet suitable for screen anti-glare such as a device, a light emitting diode display device, an EL (electroluminescence) display device, and various display devices, and also having a screen protection function.

[0002]

2. Description of the Related Art In a display such as a liquid crystal display device or a CRT, there is a disadvantage that light is incident on a screen from the outside, and this light is reflected on the surface of the screen to cause glare or the like, making it difficult to view a displayed image. In particular, in recent years, with the rapid spread and large size of flat panel displays, solving the above-mentioned drawbacks (hereinafter referred to as anti-glare) has become an increasingly important issue. In particular, the liquid crystal display does not emit light by itself, and unless it has a built-in backlight, image display must be performed using external light. Therefore, it is particularly important to provide antiglare properties. Conventionally, as a means for imparting antiglare properties, there have been known a multi-layer vapor deposition method in which a multi-layer vapor deposition layer is provided on the surface of a glass plate, a film, etc., sandblasting, embossing, compounding of silica particles (Japanese Patent Publication No. 63-40283), and the like. An antiglare layer formed of a film or sheet or the like having a surface with a fine uneven structure by various methods (hereinafter referred to as a fine uneven structure forming method) has been proposed. However, it is difficult to form a multilayer vapor-deposited film on an image display surface because it is difficult to form the multilayer vapor-deposited film on a large-sized image display surface. However, there is a drawback that the production cost of the display is increased due to the high cost.

On the other hand, in the method of forming a fine uneven structure, as a flat panel display such as a liquid crystal display device becomes thinner and lighter, a transparent plastic film and sheet having a fine uneven surface are directly bonded to the surface of an image display body. Is being done. For example, in a polarizing plate used for a liquid crystal display device, a transparent plastic film or sheet is directly bonded to both surfaces of the polarizing film to protect or reinforce the polarizing film. In this case, when a transparent plastic film or sheet having a fine uneven surface is used for the film facing the outside of the transparent plastic film or sheet, there is no need to additionally provide an anti-glare film and sheet, thereby achieving a reduction in thickness and weight. The benefits are great because you can do it. In such a usage, there is no advantage in lowering the visibility of the original display image,
It is required to have the ability to maintain the resolution of the display image at a certain level or more and the hard coat property having a surface hardness that does not easily damage the surface.

However, it has been difficult for conventional transparent plastic films and sheets having a fine uneven surface to achieve a satisfactory balance between the resolution of a display image and the hard coat property. For example, in the method of blending filler particles, when the average particle size is reduced, resolution is improved, and it is effective to obtain a clear and glare-free display image, but at the same time, the thickness of the hard coat layer is reduced. If the thickness is not reduced, fine irregularities due to the filler particles will not be formed on the surface. For this reason, there is a problem that the surface hardness is reduced.
When the thickness of the hard coat layer is increased, it is effective for imparting a hard coat property represented by the surface hardness. However, since the filler particles are buried in the film, fine irregularities on the surface are formed. Will no longer contribute. On the other hand, as a method of forming fine irregularities on the surface in a state where the film thickness is set thick to give priority to the hard coat property, [1] a large amount of small particle size filler, [2] a large particle size filler,
However, in the case of [1], the film quality of the hard coat layer becomes brittle, and in the case of [2], there occurs a problem that a glaring feeling of a display image becomes large. Therefore, there is a demand for not only a hard coat property having a surface hardness that does not easily damage the surface of the film or sheet, and an optical property that makes the displayed image less glaring.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems required for a film or a sheet, and has a good balance between a display image having anti-glare properties and a clear and small glare. It is an object of the present invention to provide an antiglare hard coat film or sheet having both satisfactory optical properties and a hard coat property having excellent surface hardness and chemical resistance having excellent scratch resistance.

[0006]

Means for Solving the Problems A first invention of the present invention is:
A hard coat film in which an active energy ray-curable resin coating layer is provided on at least one surface of a transparent plastic film or a sheet substrate (1), and an inorganic or organic film is formed on the substrate as a first hard coat layer (2). An active energy ray-curable resin coating layer in which a clear cured resin layer containing no fine particles is provided, and a thin film of a cured resin containing inorganic or organic fine particles (4) is further provided as a second hard coat layer (3). An antiglare hard coat film or sheet.

According to a second aspect of the present invention, a first hard coat layer (2) constituting an active energy ray-curable resin layer is half-cured by irradiation with an active energy ray, and then a second hard coat layer (3) is provided. After that, the first and second hard coat layers are simultaneously completely cured by irradiation with active energy rays, thereby producing a hard-coated antiglare film or sheet.

In the present invention, the first hard coat layer (2) may have a thickness of 0.5 μm to 20 μm.
The second hard coat layer (3) is an antiglare hard coat film or sheet comprising an active energy ray-curable resin layer having a thickness of 0.1 μm to 5 μm.

Further, according to the present invention, in the first aspect, the inorganic or organic fine particles (4) have an average particle diameter of 0.1 μm.
An antiglare hard coat film or sheet having a thickness of 5.0 to 5.0 μm.

In the present invention, the first hard coat layer (2) may have a thickness of 0.5 μm to 20 μm.
This is a method for producing an antiglare hard coat film or sheet in which the second hard coat layer (3) comprises an active energy ray-curable resin layer having a thickness of 0.1 μm to 5 μm.

In the present invention, the inorganic or organic fine particles (4) may have an average particle diameter of 0.1 μm.
This is a method for producing an antiglare hard coat film or sheet having a thickness of from 5.0 to 5.0 μm.

[0012]

According to the present invention, there is provided a hard coat film in which an active energy ray-curable resin coating layer is provided on at least one surface of a transparent plastic film or a sheet substrate (1), and a first hard coat layer ( An active energy ray obtained by providing a clear cured resin layer containing no inorganic or organic fine particles as 2) and further providing a thin film of a cured resin containing inorganic or organic fine particles (4) as a second hard coat layer (3). The first hard coat layer (2) preferably has a thickness of 0.5 μm to 20 μm and has a thickness of 0.5 μm to 20 μm.
The hard coat layer (3) is an active energy ray-curable resin layer having a thickness of 0.1 μm to 7 μm, which is an antiglare hard coat film or sheet, and more preferably the inorganic or organic fine particles (4) 4. The antiglare hard coat film or sheet according to claim 1, wherein the average particle size of the hard coat film is 0.1 μm to 5.0 μm. Further, the first hard coat layer (2) constituting the active energy ray-curable resin layer is half-cured by irradiation with active energy rays, and then the second hard coat layer (3) is provided.
And the second hard coat layer is completely cured at the same time by irradiation with active energy rays, and can be achieved by the method for producing an antiglare hard coat film or sheet according to claim 4, 5, or 6.

The hard-coated antiglare film or sheet of the present invention comprises the transparent plastic substrate (1),
Hard coat layer (2), second hard coat layer (3) 3
It has a structure consisting of layers. The first hard coat layer (2) is made of a transparent (clear) curable resin that does not contain inorganic or organic fine particles in the paint component, and has a thickness of 0.5 μm or more and preferably 10 μm or less after curing. After the coating, the composition is completely cured or semi-cured (half-cured) by irradiation with active energy rays. However, semi-cured refers to a crosslinked coating film in which the physical properties (hardness, scratch resistance, etc.) of the coating film have not completely reached saturation, but the coating film has been cured at least to the extent that there is no tack on the surface of the coating film Means the state. Next, a required amount of inorganic or organic fine particles (4) was blended as a second hard coat layer (3) in the resin on the first hard coat layer (2) by a known dispersion method such as a disper mixer or a sand mill. After the coating is applied so that the film thickness after curing is about 0.1 μm to 7.0 μm, the coating is cured by irradiation with active energy rays. In this case, if the first hard coat layer (2) has already been completely cured, the second hard coat layer (3)
Only when the first hard coat layer (2) is in a semi-cured state, the first and second hard coat layers (3)
At the same time. Preferably, it is often the case that the first hard coat layer (2) is semi-cured to improve the adhesion between the first and second hard coat layers.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. First, the constituent materials of the antiglare hard coat film or sheet will be described, and then the manufacturing method will be described in detail. FIG. 1 is a schematic cross-sectional view showing a layer structure of an antiglare hard coat film or sheet of the present invention, where 1 is a transparent plastic film or sheet substrate, 2 is a first hard coat layer, and 3 is a second hard coat layer.
The hard coat layer 4 is an inorganic or organic fine particle.

The transparent plastic film or sheet (1) used in the present invention is not particularly limited, and may be appropriately selected from known transparent plastic films or sheets. Specific examples include polyester, polyethylene, polypropylene, cellophane, triacetyl cellulose, diacetyl cellulose, acetyl cellulose butyrate, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, ethylene vinyl alcohol, polystyrene, polycarbonate, polymethylpentene, and polysulfone. , Polyetheretherketone, acrylic, nylon, fluororesin,
Examples of the film or sheet include polyimide, polyetherimide, and polyethersulfone. In the present invention, in particular, a triacetyl cellulose film and a uniaxially stretched polyester have excellent transparency and optically different properties. It is preferable because there is no anisotropy.

The active energy ray-curable resin used in the present invention is not particularly limited, and any resin can be used as long as it gives a coating film having a pencil hardness of H or more by ultraviolet or electron beam curing. Examples of such UV-curable resins include, for example, polyfunctional acrylate resins such as acrylic acid or methacrylic acid esters of polyhydric alcohols,
Examples include polyfunctional urethane acrylate resins synthesized from diisocyanates, polyhydric alcohols, and hydroxyalkyl esters of acrylic acid or methacrylic acid. Further, a polyether resin, a polyester resin, an epoxy resin, an alkyd resin, a spiroacetal resin, a polybutadiene resin, a polythiolpolyene resin or the like having an acrylate-based functional group can be suitably used as necessary. Further, as a reactive diluent for these resins, 1,6- having a relatively low viscosity is used.
Hexanediol di (meth) acrylate, tripropylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, hexanediol (meth) acrylate, pentaerythritol tri (meth) acrylate, trimethylolpropane tri (meth) acrylate, dipenta Erythritol hexa (meth) acrylate, neopentyl glycol di (meth)
Difunctional or higher-functional monomers and oligomers such as acrylates and monofunctional monomers such as n-vinylpyrrolidone,
Ethyl acrylate, acrylates such as propyl acrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl methacrylate, hexyl methacrylate, isooctyl methacrylate, 2-hydroxyethyl methacrylate,
Methacrylic esters such as cyclohexyl methacrylate and nonylphenyl methacrylate, derivatives such as tetrahydrofurfuryl methacrylate and its modified caprolactone, styrene, α-methylstyrene, acrylic acid, and mixtures thereof can be used.

In the present invention, when the active energy rays are ultraviolet rays, it is necessary to add a photosensitizer (radical polymerization initiator), and benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether Benzoin and its alkyl ethers, such as benzylmethyl ketal and acetophenone;
Acetophenones such as 2-dimethoxy-2-phenylacetophenone and 1-hydroxycyclohexylphenyl ketone; anthraquinones such as methylanthraquinone, 2-ethylanthraquinone and 2-amylanthraquinone; thioxanthone, 2,4-diethylthioxanthone and 2,4 Thioxanthones such as diisopropylthioxanthone; ketals such as acetophenone dimethyl ketal and benzyl dimethyl ketal; benzophenones such as benzophenone and 4,4-bismethylaminobenzophenone; and azo compounds. These can be used alone or as a mixture of two or more kinds. Further, tertiary amines such as triethanolamine and methyldiethanolamine; 2-dimethylaminoethylbenzoic acid;
It can be used in combination with a photoinitiating auxiliary such as a benzoic acid derivative such as ethyl 4-dimethylaminobenzoate. The amount of the organic peroxide and the photopolymerization initiator to be used is 0.5 to 20 parts by weight, preferably 1 to 15 parts by weight, based on 100 parts by weight of the polymerizable component of the resin composition.

In the present invention, as the inorganic or organic fine particles to be blended in the second hard coat layer (3), any fine particles that maintain good transparency in the active energy ray-curable resin can be used. it can. As the inorganic fine particles, generally, fine particles composed of silica, alumina, titania, zirconia, and the like are used, and among them, silica particles, particularly synthetic silica particles are preferable in terms of antiglare properties, resolution, hard coat properties, and the like. . In addition, conductive transparent fine particles such as tin oxide, indium oxide, cadmium oxide, and antimony oxide can be used regardless of imparting antistatic properties. As the organic fine particles, hard fine particles having an appropriate crosslinked structure inside the particles and free from swelling due to an active energy ray-curable resin, a monomer, a solvent or the like can be used. For example, styrene-based resin of particle internal cross-linking type, styrene-acrylic copolymer resin, acrylic resin, divinylbenzene resin, silicone resin, urethane resin, melamine resin, styrene-isoprene resin,
Benzoguanamine resin and other reactive microgels can be used. The amount of the transparent fine particles is 0.5 parts by weight per 100 parts by weight of the active energy ray-curable resin.
It is 20 parts by weight, preferably 1 to 15 parts by weight.

If necessary, known general paint additives can be blended. For example, a silicone-based or fluorine-based additive that imparts leveling, surface slip properties, etc. is effective in preventing scratches on the surface of the cured film. By bleeding at the interface, the inhibition of curing of the resin by oxygen can be reduced, and an effective curing degree can be obtained even under low irradiation intensity conditions. The appropriate amount of these additives is from 0.01 to 1.0 part by weight based on 100 parts by weight of the active energy ray-curable resin.

The main constituent materials that can be used in the present invention have been described above. Next, a method for producing an antiglare hard coat film or sheet will be specifically described. First and second
The method of applying the hard coat layer is optional, but in the production stage, a roll coater, a reverse roll coater, a gravure coater, a die coater, a knife coater, a bar coater, or the like is generally used.

When ultraviolet light is used as the active energy ray source, a light source such as a high-pressure mercury lamp, a low-pressure mercury lamp, an ultra-high-pressure mercury lamp, a metal halide lamp, a carbon arc, a xenon arc, etc. can be used to cure a clear coating film containing no filler. In general, metal halide lamps are generally used for high pressure mercury lamps, fillers, and hardening of thick films. In the case of curing using electron beam, Cockloft-Wald type, Bande-Craft type, Resonant transformer type, Insulating core transformer type,
An electron beam having an energy of 50 keV to 1000 keV, preferably 100 keV to 300 keV, emitted from various electron beam accelerators such as a linear type, a dynamitron type, and a high frequency type can be used.

[0022]

EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to these examples. Parts and percentages are by weight unless otherwise specified.

Example 1 (First Hard Coat Layer) An ultraviolet-curable clear coating composition containing no filler particles and having the following formulation was prepared as follows.
It was prepared as a hard coat resin solution. 25 parts of 4-functional urethane acrylate oligomer (U-4HA, manufactured by Shin-Nakamura Chemical Co., Ltd.) 45 parts of trimethylolpropane triacrylate (manufactured by Toa Gosei Chemical Co., Ltd.) 2.3 parts of Darocur 1173 (manufactured by Ciba Geigy) 2.3 parts of toluene 15 parts 5 parts of 2-butanone Next, the above-mentioned ultraviolet-curable clear coating composition is applied to one surface of a triacetyl cellulose film having a thickness of 80 μm with a wire bar, and the solvent is evaporated to a thickness of about 5 μm.
After the application layer is formed, ultraviolet light from a high-pressure mercury UV (ultraviolet) lamp (120 W / cm) is applied from the coating side to an integrated light amount of about 2
Irradiation was performed under the conditions of 00 mJ / m ² and curing treatment was performed to prepare a first hard coat layer. (Second Hard Coat Layer) An ultraviolet-curable coating composition containing a filler was prepared by the procedure described below. First, Disperbyk-170 as a filler dispersant was previously dissolved in a mixed solvent of toluene / 2-butanone = 1/1, and then silica dispersion was prepared by performing high-speed stirring with a disper mixer while adding silica little by little. Next, the silica dispersion was gradually added to a mixture of a tetrafunctional urethane acrylate oligomer and trimethylolpropane triacrylate while stirring, and finally Darocur 1 was used as a photopolymerization initiator.
173 was prepared.・ 4-functional urethane acrylate oligomer (U-4HA, manufactured by Shin-Nakamura Chemical Co., Ltd.) 25 parts ・ Trimethylolpropane triacrylate (manufactured by Toa Gosei Chemical) 45 parts ・ Disperbyk-170 (manufactured by BYK Chemie) 0.8 part・ Darocur 1173 (manufactured by Ciba Geigy) 2.3 parts ・ Silica (fine seal F80, manufactured by Tokuyama Corporation) 6 parts ・ Toluene 15 parts ・ 15 parts of 2-butanone Next, on the above-mentioned ultraviolet-cured first hard coat layer, The thickness of the second hard coat layer having the composition after thermal drying is about 1.
After coating to a thickness of 5 μm, high-pressure mercury U
V lamp (120W / cm) UV light integrated about 30
Irradiation was performed under the conditions of 0 mJ / m ² and curing treatment was performed to obtain an antiglare hard coat film including a base material and three layers of a first and a second hard coat.

<Example 2> A photopolymerization initiator (Darocur 117) was prepared from the first and second hard coat formulations of Example 1.
After forming a first hard coat layer having a thickness of about 5 μm on a triacetyl cellulose film (80 μm) in the same manner as in Example 1 with the composition except for only 3), an acceleration voltage of 200 keV was applied from the coating side. The first hard coat layer was produced by subjecting the electron beam to a curing treatment under the conditions of an absorption dose of 2 Mrad. Next, after applying the second hard coat layer on the electron beam-cured first hard coat layer so as to have a film thickness of about 1.5 μm, an acceleration voltage of 200 keV is applied from the coating film side.
Was cured under the conditions of an absorbed dose of 3 Mrad to produce an antiglare hard coat film of the present invention.

Comparative Example 1 Only one layer of the second hard coat containing the filler particles described in Example 1 was formed on a triacetyl cellulose film so as to have a thickness of 1.5 μm, and then the coating film side Higher pressure mercury UV lamp (120W
/ Cm) under a condition of an integrated light quantity of about 300 mJ / m ² , and cured to produce a hard-coated antiglare film having a two-layer structure.

Comparative Example 2 Only one layer of the second hard coat containing the filler particles described in Example 1 was formed on a triacetyl cellulose film so as to have a thickness of 5.0 μm. By performing a curing treatment under the same ultraviolet irradiation conditions as in Example 1, an antiglare hard coat film having a two-layer structure was produced.

Comparative Example 3 Silica particles of the second hard coat coating composition containing the filler particles described in Example 1 (Fine Seal F80: average agglomerated particle diameter of 1.2 μm to 1.
8 μm, manufactured by Tokuyama Co., Ltd.) Except that the blending amount was 13 parts, the film thickness was 5.
By forming an antiglare hard coat layer having a thickness of 0 μm on the triacetyl cellulose film, an antiglare hard coat film having a two-layer structure was produced.

Comparative Example 4 Silica particles of the second hard coat coating composition containing the filler particles described in Example 1 (Fine Seal F80: average agglomerated particle size of 1.2 μm to 1.
8 μm, manufactured by Tokuyama Corporation, instead of silica particles having a larger particle diameter (Fine Seal P8: average aggregated particle diameter 5.5)
The thickness of the antiglare hard coat layer having a thickness of 6.5 μm was formed on a triacetylcellulose film under the same composition and ultraviolet irradiation conditions except that μm to 8.0 μm, manufactured by Tokuyama Corporation was used. An antiglare hard coat film having the above constitution was produced.

[Evaluation Methods] With respect to the antiglare hard coat films obtained in Examples 1 and 2 and Comparative Examples 1 to 4, various physical properties were measured by the following measurement methods, and the performance was evaluated. Shown in Haze degree (proportion of scattered or refracted light in parallel light incident on the transparent film): Measured by a direct-read haze computer (manufactured by Suga Test Instruments Co., Ltd.).・ Glittering of display image: LC without anti-glare treatment
The antiglare hard coat film of the present invention was adhered to the surface of the D display, and the displayed image was visually observed and evaluated according to the following criteria. A +: No glare (very clear) A: Little glare (clear) B: Some glare C: Large glare (unclear) ・ Surface roughness: Surface roughness of (Surfcom550AD, manufactured by Tokyo Seimitsu Co., Ltd.) The center line average roughness (Ra) was measured by the contour shape measurement system.・ Coating adhesion: 1m with a cutter on the surface of the cured coating layer
After putting 100 cross hatches (squares) of mx 1 mm and pasting cellophane tape (Nichiban) on it,
When the cellophane tape was peeled off, the number of squares in which the cured film was peeled off from the film substrate was evaluated. Pencil hardness: Pencils having different hardnesses were used to determine the presence or absence of scratches under a load of 500 g. Scratch resistance: The surface of the hard coat film was rubbed 10 times with # 0000 steel wool while applying a load of 400 g, and the occurrence of scratches and the degree of scratches were visually observed, and evaluated according to the following criteria. did. A: No scratch is observed. B: Several fine scratches are observed. C: Countless scratches are observed.

[0030]

[Table 1]

[Evaluation Results] From Table 1, the three-layer hard coat films shown in Examples 1 and 2 have a transmission clearness of 34% to 35%, respectively, and are not subjected to antiglare treatment. When the image was observed by closely adhering to the surface, a clear and good transmitted character image with little glare could be observed. Furthermore, the pencil hardness and the scratch resistance were 3H and A, respectively, which were very good as hard coat properties. In Comparative Example 1, the optical characteristics were substantially the same as those in Examples 1 and 2 in terms of both the haze degree and the glaring feeling of the displayed image, but only the second hard coat layer was used, and the film thickness was thin (1.5 μm). ), The hard coat property was significantly reduced. On the other hand, in Comparative Example 2, by increasing the film thickness (5 μm), the hard coat property was improved and the glare of the displayed image was significantly improved, but the haze was greatly reduced, and the outline of the indoor fluorescent lamp was changed to the hard coat surface. However, a sufficient anti-glare effect could not be obtained because the image was clearly reflected. In Comparative Example 3, the film thickness was increased for the purpose of improving the antiglare effect of Comparative Example 2,
In addition, an attempt was made to blend a large amount of silica having a small particle diameter (1.2 μm to 1.8 μm), but the film quality became brittle and the hard coat property was slightly reduced. In Comparative Example 4, the thickness of the hard coat layer was made sufficiently thick (6.5 μm), and silica having a large particle diameter (5.5 μm to 8.0 μm) was blended.
Although the antiglare effect and the hard coat property were satisfied, the glare of the displayed image was large, and an unclear transmitted character image was observed.

[0032]

As is clear from the above description of the embodiment, the feature of the antiglare hard coat film or sheet according to the present invention is that at least one surface of the transparent plastic substrate is provided with a mechanical film as a protective film. After providing a first hard coat layer made of a clear cured resin containing no inorganic or organic fine particles having a function of imparting strength, a cured resin containing inorganic or organic fine particles as a second hard coat layer further having a function of imparting light controllability 3 with thin film
The layer structure provides optical properties that satisfy a good balance between anti-glare properties and clear, low-glare display images, and imparts hard coat properties with excellent surface hardness and chemical resistance to scratch resistance. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a layer structure of an antiglare hard coat film or sheet of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Transparent plastic film or sheet base material 2 ... 1st hard-coat layer 3 ... 2nd hard-coat layer 4 ... Inorganic or organic fine particles

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2H042 BA02 BA15 BA20 2K009 AA12 AA15 BB11 CC21 DD02 DD05 EE00 4F100 AA01C AA01H AA20H AJ06 AK01A AK01B AK01C AK01H AK25 BA03 BA05 BA06 BA07 BA10A BA10C EA13CA08 EJ541 EJ542 GB41 JB01 JB14B JB14C JK09 JK12B JK12C JM02C JN01A JN01B JN30 YY00B YY00C 5G435 AA00 AA08 HH02 KK07

Claims (6)

[Claims] 1. A hard coat film provided with an active energy ray-curable resin coating layer on at least one surface of a transparent plastic film or a sheet substrate, wherein inorganic or organic fine particles are formed as a first hard coat layer on the substrate. An active energy ray-curable resin film layer comprising a clear hardened resin layer containing no fine particles and a second hard coat layer further provided with a thin film of a hardened resin containing inorganic or organic fine particles. Hard coat film or sheet. 2. The method according to claim 1, wherein the first hard coat layer has a thickness of 0.5 μm to 2 μm.
0 μm, thickness of the second hard coat layer is 0.1 μm to 5 μm
The antiglare hard coat film or sheet according to claim 1, comprising an active energy ray-curable resin layer of the formula (1). 3. The hard-coated antiglare film or sheet according to claim 1, wherein the average particle size of the inorganic or organic fine particles is from 0.1 μm to 5.0 μm. 4. A method according to claim 1, wherein the first hard coat layer constituting the active energy ray-curable resin layer is half-cured by irradiation with active energy rays, and then the second hard coat layer is provided.
A method for producing an antiglare hard coat film or sheet, wherein the first and second hard coat layers are simultaneously completely cured by irradiation with active energy rays. 5. The method according to claim 1, wherein the first hard coat layer has a thickness of 0.5 μm to 2 μm.
0 μm, thickness of the second hard coat layer is 0.1 μm to 5 μm
5. The method for producing an antiglare hard coat film or sheet according to claim 4, comprising the active energy ray-curable resin layer of the above. 6. The method for producing an antiglare hard coat film or sheet according to claim 4, wherein the average particle diameter of the inorganic or organic fine particles is 0.1 μm to 5.0 μm.