JP6597075B2 - Antistatic antiglare hard coat film, method for producing antistatic antiglare hard coat film, and display device using the hard coat film - Google Patents

Description

  The present invention relates to an antistatic antiglare hard coat film, a method for producing an antistatic antiglare hard coat film, and a display device using the hard coat film.

  An anti-glare film having a concavo-convex structure may be provided on the surface of a display device such as a monitor of a television, a notebook PC, or a desktop PC in order to prevent reflection of external light. In particular, desktop PCs tend to focus on preventing external light reflection rather than image clarity, and antiglare films are often used. In recent years, the number of point light sources such as LEDs has increased, and the required level of anti-glare properties has increased.

Such an anti-glare film has a basic structure comprising an anti-glare layer containing a transparent resin and translucent particles on a transparent substrate. Since most of the materials constituting the antiglare film are insulators, the antiglare film is easily charged.
When the anti-glare film is charged, dust or dirt adheres, and the display quality of the display device is impaired. In addition, when a foreign matter such as dust or dirt adheres to the antireflection film during the production process of the antireflection film, a coating film defect occurs from the foreign matter, and the yield of the antiglare film is reduced. Furthermore, the circuit of the display element constituting the display device may be destroyed due to static electricity generated in the antiglare film. In particular, IPS liquid crystal elements are vulnerable to static electricity.
For this reason, it is also required that the antiglare film has a high level of antistatic properties.

  As means for imparting antistatic properties to an antiglare film, the techniques of Patent Documents 1 to 3 are disclosed.

JP 2014-112223 A Japanese Patent Laid-Open No. 11-115087 International Publication Number WO2011 / 142429

Patent Document 1 discloses that an antistatic layer is formed on an antiglare layer to impart antistatic properties. However, when the antistatic layer is formed on the antiglare layer, the unevenness on the surface of the antiglare layer is relaxed by the antistatic layer, and it is difficult to realize high antiglare properties.
Patent Document 2 discloses that an antistatic property is imparted by forming a conductive layer containing a metal oxide-based conductive agent between a transparent substrate and an antiglare layer. However, when an antistatic property is imparted by a metal oxide-based conductive agent, there are problems that the total light transmittance is lowered and coloring is caused.

Further, a means for imparting antistatic properties by incorporating an antistatic agent such as an ion conductive antistatic agent or a thiophene antistatic agent in the antiglare layer may be considered.
However, when an ion conductive antistatic agent is used as the antistatic agent, there is a problem that the antistatic performance is lowered when the resin of the antiglare layer is cured in order to impart scratch resistance. Further, when a thiophene antistatic agent is used, there is a problem that unevenness occurs in the surface shape and the antiglare uniformity in the surface of the antiglare film is impaired.

On the other hand, the technique of patent document 3 is proposed as a means to provide antistatic property to the clear hard coat film which does not have anti-glare property.
Patent Document 3 discloses forming a clear hard coat layer from a resin composition containing a quaternary ammonium salt on a triacetyl cellulose base material. When a quaternary ammonium salt is used as in Patent Document 3, if the clear type does not contain particles in the hard coat layer, there are few cases where problems arise in antistatic performance. However, when a quaternary ammonium salt is used, microscopic unevenness occurs in the surface shape when particles are included in the hard coat layer to develop antiglare properties, and the antiglare properties within the surface are reduced. Uniformity may be impaired.

  The present invention has been made under such circumstances, and has a high antiglare and antistatic property in a single hard coat layer without functionally separating the hard coat layer having antiglare properties and the antistatic layer. It is an object to provide an antiglare hard coat film having a good anti-glare property, having an in-plane antiglare property uniform and suppressing coloring, and a method for producing the same.

  In order to solve the above problems, the present invention uses the following antistatic antiglare hard coat film [1] to [10], a method for producing an antistatic antiglare hard coat film, and the hard coat film. A display device is provided.

[1] It has a hard coat layer on a transparent substrate, and the hard coat layer contains an ionizing radiation curable resin, translucent particles, a quaternary ammonium salt, and a silicone leveling agent. A quaternary ammonium salt and the silicone leveling agent are reactive with the ionizing radiation curable resin, and the silicone leveling agent is added in an amount of 1.0 to 15 with respect to 100 parts by mass of the light-transmitting particles. An antistatic antiglare hard coat film containing a cured product of a hard coat layer forming ink containing 0 part by mass.
[2] The antistatic antiglare hard coat film according to the above [1], wherein the ionizing radiation curable resin, the quaternary ammonium salt, and the leveling agent have a (meth) acryloyl group.
[3] In the total solid content of the hard coat layer forming ink, the ionizing radiation curable resin is 60.0 to 95.0 mass%, the translucent particles are 1.0 to 25.0 mass%, Antistatic property as described in [1] or [2] above, comprising 1.0 to 20.0% by mass of the quaternary ammonium salt and 0.15 to 2.5% by mass of the silicone leveling agent. Anti-glare hard coat film.
[4] The antistatic antiglare hard coat film according to any one of [1] to [3], wherein the translucent particles are silica.
[5] The antistatic antiglare hard coat film according to any one of the above [1] to [4], wherein the haze of JIS K7136: 2000 is 15 to 50%.
[6] The antistatic antiglare hard coat film according to any one of the above [1] to [5], wherein the surface resistivity of the hard coat layer surface is 1.0 × 10 ¹³ Ω / □ or less.
[7] The transparent substrate according to any one of [1] to [6], wherein the transparent substrate is a transparent substrate with a primer layer, and the hard coat layer includes the cured product and a resin constituting the primer layer. Antistatic antiglare hard coat film.

[8] An ionizing radiation curable resin, translucent particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and the leveling agent react with the ionizing radiation curable resin. A hard coat layer forming ink comprising 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles. A method for producing an antistatic antiglare hard coat film in which a hard coat layer containing a cured product of the hard coat layer forming ink is formed by coating, drying, and irradiation with ionizing radiation.
[9] When a transparent substrate with a primer layer is used as the transparent substrate and the hard coat layer is formed on the primer layer, at least a part of the primer layer is formed with the hard coat layer forming ink. The method for producing an antistatic antiglare hard coat film as described in [8] above, which dissolves.
[10] The antistatic antiglare hard coat film according to any one of [1] to [7] above is provided on the display element, and the hard coat layer side of the antistatic antiglare hard coat film The display device is arranged so that the surface of the substrate faces the surface opposite to the display element.

  The antistatic anti-glare hard coat film of the present invention can realize high anti-glare and anti-static properties with a single hard coat layer, and can have uniform in-plane anti-glare properties and further coloring. Can be suppressed. Moreover, the manufacturing method of the antistatic anti-glare hard coat film of this invention can manufacture the hard coat film provided with the said effect simply. Further, the display device of the present invention has high antiglare property and antistatic property, can make the display surface antiglare property uniform, and can further suppress coloring.

Embodiments of the present invention will be described below.
[Antistatic antiglare hard coat film]
The antistatic antiglare hard coat film of the present invention (hereinafter sometimes referred to as “the hard coat film of the present invention”) has a hard coat layer on a transparent substrate, and the hard coat layer is ionized. It contains a radiation curable resin, translucent particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and the silicone leveling agent have reactivity with the ionizing radiation curable resin. And a cured product of a hard coat layer forming ink containing 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles.

Transparent base material The transparent base material preferably has light transmittance, smoothness and heat resistance and is excellent in mechanical strength. Such transparent substrates include polyester, triacetyl cellulose (TAC), cellulose diacetate, cellulose acetate butyrate, polyamide, polyimide, polyether sulfone, polysulfone, polypropylene, polymethylpentene, polyvinyl chloride, polyvinyl acetal. , Polyether ketone, polymethyl methacrylate, polycarbonate, polyurethane, and amorphous olefin (Cyclo-Olefin-Polymer: COP). The transparent substrate may be a laminate of two or more plastic films.

Among the above, from the viewpoint of mechanical strength and dimensional stability, polyesters (polyethylene terephthalate, polyethylene naphthalate, etc.) subjected to stretching, particularly biaxial stretching are preferable.
The polyester film is more easily charged than TAC or the like and may break the circuit of the display element (particularly the IPS liquid crystal display element). However, in the hard coat film of the present invention, the polyester film was used as the transparent substrate. Even in this case, since charging can be prevented, the circuit breakage of the display element can be suppressed. Furthermore, since the polyester film has low permeability and the quaternary ammonium salt hardly penetrates into the transparent substrate, the antistatic property is easily improved.

The thickness of the transparent substrate is preferably 5 to 300 μm, and more preferably 30 to 200 μm.
The surface of the transparent substrate may be subjected to physical treatment such as corona discharge treatment or oxidation treatment, or chemical treatment in order to improve adhesion.

Hard coat layer The hard coat layer is formed from an ink for forming a hard coat layer comprising an ionizing radiation curable resin, translucent particles, a quaternary ammonium salt, and a silicone leveling agent. In order to exert the effect of the present invention, the quaternary ammonium salt and the silicone leveling agent are reactive with the ionizing radiation curable resin, and the silicone leveling agent with respect to 100 parts by mass of the translucent particles. It is necessary to contain 1.0-15.0 mass parts. Such a hard coat layer has a role of imparting antiglare properties, antistatic properties and scratch resistance.

Conventionally, in order to impart antistatic properties to hard coat films, an antistatic layer is provided on the hard coat layer, or a metal oxide-based conductive agent is used between the transparent substrate and the hard coat layer. In some cases, a layer was provided. However, when an antistatic layer is provided on the hard coat layer, unevenness on the surface of the hard coat layer is alleviated by the antistatic layer, so that high antiglare properties cannot be imparted. In addition, when an antistatic layer using a metal oxide-based conductive agent is provided between the transparent substrate and the hard coat layer, the total light transmittance may be reduced or coloring may occur.
For this reason, it is preferable that the hard coat film of this invention does not have an antistatic layer separately. In the hard coat film of the present invention, the hard coat layer is preferably located on the outermost surface without having any other layer on the hard coat layer. Moreover, it is preferable that the hard coat film of this invention does not contain a metal oxide type electrically conductive agent substantially. Substantially not containing means 1% by mass or less of the total mass of the antistatic antiglare hard coat film, preferably 0.5% by mass or less, more preferably 0.1% by mass or less, Most preferably, it means 0% by mass.

<Translucent particles>
The translucent particles have a role of making the surface of the hard coat layer uneven and imparting antiglare properties to the hard coat film of the present invention.
As the translucent particles, both translucent organic particles and translucent inorganic particles can be used. Further, the translucent particles include shapes such as a spherical shape, a disk shape, a rugby ball shape, and an indeterminate shape, and can be further classified into hollow particles, porous particles, solid particles, and the like having these shapes. Among these, amorphous particles are preferable from the viewpoint of antiglare properties.

As translucent organic particles, polymethyl methacrylate, polyacryl-styrene copolymer, melamine resin, polycarbonate, polystyrene, polyvinyl chloride, benzoguanamine-melamine-formaldehyde condensate, silicone, fluorine resin, polyester resin, etc. The particle | grain which becomes is mentioned.
Examples of the translucent inorganic particles include particles made of silica, alumina, zirconia, titania and the like.
Generally, in order to make the in-plane antiglare property uniform, translucent organic particles that are easy to control dispersion are advantageous, and translucent inorganic particles are disadvantageous. In particular, when the quaternary ammonium salt and the translucent inorganic particles are used in combination, it is difficult to control the dispersion of the translucent inorganic particles, and it is difficult to make the antiglare property in the surface uniform. However, in the present invention, since a specific quaternary ammonium salt and a specific leveling agent are used, even if the translucent inorganic particles and the quaternary ammonium salt are used in combination, the in-plane antiglare property is uniform. Can be.

Among the above-described translucent particles, translucent inorganic particles are preferable from the viewpoint of scratch resistance.
The translucent inorganic particles are preferably those whose surfaces have been subjected to a hydrophobic treatment. By hydrophobizing the surface of the translucent inorganic particles, the dispersibility can be improved and the in-plane antiglare property can be made more uniform. Examples of the hydrophobizing treatment include a method of treating translucent inorganic particles with a silane compound having an acrylic group such as a methyl group or an octyl group.
Moreover, the light-transmitting inorganic particles are preferably silica that easily imparts antiglare properties while suppressing a decrease in total light transmittance.

The average particle diameter of the translucent particles is preferably 1 to 10 μm, and more preferably 2 to 6 μm, from the viewpoint of antiglare properties and prevention of the translucent particles from falling off the hard coat layer.
The ratio of the average particle diameter of the translucent particles to the thickness of the hard coat layer (the average particle diameter of the translucent particles / the thickness of the hard coat layer) is the antiglare property and the translucent particles from the hard coat layer. From the viewpoint of preventing falling off, it is preferably 0.5 to 2.0, more preferably 1.2 to 2.0.

The average particle diameter of the translucent particles can be calculated by the following operations (1) to (3) as long as the state is after the hard coat layer is formed.
(1) A transmission observation image of the optical sheet of the present invention is taken with an optical microscope. The magnification is preferably 500 to 2000 times.
(2) Ten arbitrary particles are extracted from the observed image, the major axis and minor axis of each particle are measured, and the particle diameter of each particle is calculated from the average of the major axis and minor axis. The major axis is the longest diameter on the screen of individual particles. The minor axis is a distance between two points where a line segment perpendicular to the midpoint of the line segment constituting the major axis is drawn and the perpendicular line segment intersects the particle.
(3) The same operation is performed five times on the observation image of another screen of the same sample, and the value obtained from the number average of the particle diameters for a total of 50 particles is taken as the average particle diameter of the particles.

The content of the translucent particles is preferably 1.0 to 25.0% by mass and more preferably 3.0 to 20.0% by mass in the total solid content of the hard coat layer forming ink. Preferably, it is 10.0-20.0 mass%. By making the content of the translucent particles 1.0% by mass or more, the antiglare property can be easily improved, and by making the content of the translucent particles 25.0% by mass or less, on the display element. It is possible to suppress a decrease in resolution and contrast when a hard coat film is installed.
Conventionally, when the content of translucent particles is large (when the content of translucent particles is 10.0% by mass or more in the total solid content of the hard coat layer forming ink), the hard coat layer forming ink is used. Further, when a quaternary ammonium salt is added, microscopic unevenness occurs in the surface shape, and it is difficult to make the antiglare property in the surface uniform. In the hard coat film of the present invention, by using a specific quaternary ammonium salt and a specific leveling agent, the in-plane antiglare property can be made uniform even when a large amount of translucent particles are used.

<Quaternary ammonium salt>
The quaternary ammonium salt has a role of imparting antistatic properties to the hard coat film of the present invention.
When a quaternary ammonium salt and translucent particles are used in combination, antistatic properties commensurate with the amount of quaternary ammonium salt added may not be obtained, or in-plane antiglare properties may be uneven. is there. In the hard coat film of the present invention, as a quaternary ammonium salt, a quaternary ammonium salt and a translucent material are used by using a reactive material with an ionizing radiation curable resin and a specific leveling agent described later. Even when particles are used in combination, stable antistatic properties can be imparted, and antiglare properties in the surface can be made uniform. Further, the quaternary ammonium salt does not cause a color to the hard coat film unlike the metal oxide conductive agent.
A quaternary ammonium salt that is not reactive with the ionizing radiation curable resin is not preferable because it is poorly fixed to the hard coat layer and the antistatic property decreases with time. In addition, the quaternary ammonium salt that is not reactive with the ionizing radiation curable resin has poor compatibility with the ionizing radiation curable resin described later and a reactive silicone-based leveling agent, and the surface shape of the hard coat layer. Unevenness occurs, and the anti-glare property cannot be made uniform in the surface.

Examples of the quaternary ammonium salt having reactivity with the ionizing radiation curable resin include quaternary ammonium salts having an ionizing radiation curable functional group.
Examples of the ionizing radiation curable functional group include an ethylenically unsaturated bond group such as a (meth) acryloyl group, a vinyl group, and an allyl group, an epoxy group, and an oxetanyl group. Among these, a (meth) acryloyl group is preferable.
In addition, the ionizing radiation curable functional group of the quaternary ammonium salt, the ionizing radiation curable functional group of the silicone leveling agent described later, and the ionizing radiation curable functional group of the ionizing radiation curable resin described later are all the same type. It is preferable that both are (meth) acryloyl groups.

Examples of the quaternary ammonium salt include a copolymer of dimethylaminoethyl methacrylate quaternary ammonium salt and a (meth) acrylate compound.
The mass ratio of dimethylaminoethyl methacrylate quaternary ammonium salt and (meth) acrylate compound is preferably 1/99 to 90/10, and more preferably 5/95 to 85/15.
The (meth) acrylate compound preferably contains a linear hydrocarbon or a cyclic hydrocarbon. The (meth) acrylate compound is preferably at least one selected from the group consisting of dodecyl (meth) acrylate, tridecyl (meth) acrylate, and cyclohexyl (meth) acrylate.

The quaternary ammonium salt preferably has a weight average molecular weight of 1,000 to 50,000, and more preferably 5,000 to 20,000. By setting the weight average molecular weight to 1,000 or more, it becomes difficult for the quaternary ammonium salt to permeate the transparent substrate, the antistatic property can be improved, and the weight average molecular weight is set to 50,000 or less. As a result, it is possible to prevent the coating property from deteriorating due to an increase in the viscosity of the hard coat layer forming ink.
The weight average molecular weight of the quaternary ammonium salt can be determined by polystyrene conversion by gel permeation chromatography.

  Commercially available products of the quaternary ammonium salts described above include trade names H6100, H6100M, H6500 (above, manufactured by Mitsubishi Chemical Corporation), trade names Colcoat NR121X, Colcoat NR121X-9IPA (above, produced by Colcoat), trade names 1SX3000, 1SX3004 (manufactured by Taisei Fine Chemical Co., Ltd.), trade name: Uniresin AS-10 / M, Uniresin AS-12 / M, Uniresin AS-15 / M, Uniresin ASH26 (above, Shin-Nakamura Chemical Co., Ltd.), trade name UV-ASHC -01 (manufactured by Nippon Kasei Co., Ltd.).

Moreover, it is preferable to use a quaternary ammonium salt having a higher degree of hydrophilicity than an ionizing radiation curable resin described later. Since the transparent substrate is inferior in hydrophilicity, by increasing the degree of hydrophilicity of the quaternary ammonium salt than the ionizing radiation curable resin, the ionizing radiation radiation curable resin is easily collected on the transparent substrate side. Further, since the quaternary ammonium salt tends to collect on the surface side of the hard coat layer (the side opposite to the transparent substrate), the antistatic property can be further improved.
The degree of hydrophilicity can be determined by measuring the contact angle with water of a coating film composed of each component alone. Specifically, it can be determined that the lower the contact angle, the higher the degree of hydrophilicity.

  The content of the quaternary ammonium salt is preferably 1.0 to 20.0 mass%, and preferably 1.0 to 10.0 mass%, based on the total solid content of the hard coat layer forming ink. More preferably, it is 1.5 to 5.0 mass%. By making the content of the quaternary ammonium salt 1.0% by mass or more, the antistatic property can be easily improved, and by making the content of the quaternary ammonium salt 20.0% by mass or less, It is possible to suppress variations in surface properties due to bleeding of the quaternary ammonium salt and to suppress a decrease in scratch resistance of the hard coat layer.

<Silicone leveling agent>
In the present invention, a silicone leveling agent having reactivity with an ionizing radiation curable resin is used as the leveling agent, and the content of the silicone leveling agent is 1.0 to 15 with respect to 100 parts by mass of the translucent particles. 0.0 part by mass. In the present invention, by having this configuration, the in-plane antiglare property can be made uniform and the antistatic property can be improved.

On the other hand, when the leveling agent is a fluorine-based leveling agent, the antistatic property is insufficient. This is considered to be because the affinity between the quaternary ammonium salt and the fluorine-based leveling agent is low, and the quaternary ammonium salt is inhibited from collecting near the surface of the hard coat layer. Moreover, when a fluorine-type leveling agent is used, it exists in the tendency for the in-plane anti-glare uniformity to fall. This is thought to be because the quaternary ammonium salt has a low affinity between the fluorinated leveling agent, resulting in uneven concentration of the quaternary ammonium salt in the surface, and the density of the silica changes due to the uneven concentration. (It is thought that silica is concentrated in a place where the concentration of the quaternary ammonium salt is high, and silica is difficult to collect in a place where the concentration of the quaternary ammonium salt is low).
In the case of a silicone-based leveling agent that is not reactive with an ionizing radiation curable resin, the leveling agent is excessively collected near the surface of the hard coat layer, so that the quaternary ammonium salt near the surface of the hard coat layer is formed. Since the existence ratio cannot be increased, the antistatic property becomes insufficient.

Further, even when a reactive silicone leveling agent is used, the surface tension cannot be made uniform if the content of the silicone leveling agent is less than 1.0 part by mass with respect to 100 parts by mass of the translucent particles. Unevenness occurs in the surface shape of the hard coat layer, and the antiglare property within the surface cannot be made uniform. In addition, the reactive silicone leveling agent is considered to have a high affinity with the quaternary ammonium salt, and as a result, the quaternary ammonium salt is pulled up near the surface of the hard coat layer to improve the antistatic property. It is considered to have an action. For this reason, when content of a silicone type leveling agent is less than 1.0 mass part with respect to 100 mass parts of translucent particles, this effect | action will become inadequate and antistatic property will become inadequate.
Moreover, when content of a silicone type leveling agent exceeds 15.0 mass parts with respect to 100 mass parts of translucent particles, the effect | action of the silicone type leveling agent with respect to translucent particles and ionizing radiation-curable resin becomes strong. Thus, the surface shape of the hard coat layer becomes uneven, and the antiglare property in the surface cannot be made uniform.

The content of the reactive silicone leveling agent is preferably 1.0 to 10.0 parts by mass, and 2.0 to 5.0 parts by mass with respect to 100 parts by mass of the translucent particles. More preferred.
Moreover, it is preferable that content of a reactive silicone type leveling agent is 0.15-2.5 mass% in the total solid of the ink for hard-coat layer formation, 0.20-2.0 mass% It is more preferable that it is 0.25-1.0 mass%. By making the content of the reactive silicone leveling agent 0.15% by mass or more, the antistatic property and the uniformity of the antiglare property in the surface can be improved, and the reactive silicone type By setting the content of the leveling agent to 2.5% by mass or less, the uniformity of the antiglare property within the surface can be improved.

Examples of the silicone leveling agent having reactivity with the ionizing radiation curable resin include a silicone leveling agent having an ionizing radiation curable functional group.
Specific examples include those in which ionizing radiation-curable functional groups are introduced at one or both ends of polysiloxane.
Examples of the ionizing radiation curable functional group include an ethylenically unsaturated bond group such as a (meth) acryloyl group, a vinyl group, and an allyl group, an epoxy group, and an oxetanyl group. Among these, a (meth) acryloyl group is preferable.
Examples of such silicone leveling agents include trade names X-22-164, X-22-164AS, X-22-2445, and X-22-163 manufactured by Shin-Etsu Silicone.

<Ionizing radiation curable resin>
The ionizing radiation curable resin is a compound having an ionizing radiation curable functional group (however, in the present invention, those having a quaternary ammonium cation and those having a polysiloxane skeleton are from the ionizing radiation curable resin. Excluding). Examples of the ionizing radiation curable functional group include an ethylenically unsaturated bond group such as a (meth) acryloyl group, a vinyl group, and an allyl group, an epoxy group, and an oxetanyl group.
As the ionizing radiation curable resin, a compound having an ethylenically unsaturated bond group is preferable, a compound having two or more ethylenically unsaturated bond groups is more preferable, and among them, having two or more ethylenically unsaturated bond groups, Polyfunctional (meth) acrylate compounds are more preferred. As the polyfunctional (meth) acrylate compound, any of a monomer and an oligomer can be used.
The ionizing radiation means an electromagnetic wave or a charged particle beam having an energy quantum capable of polymerizing or cross-linking molecules, and usually ultraviolet (UV) or electron beam (EB) is used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion beams can also be used.

Among the polyfunctional (meth) acrylate compounds, bifunctional (meth) acrylate monomers include ethylene glycol di (meth) acrylate, bisphenol A tetraethoxydiacrylate, bisphenol A tetrapropoxydiacrylate, 1,6-hexane. Examples thereof include diol diacrylate.
Examples of the tri- or higher functional (meth) acrylate monomer include trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, di Examples include pentaerythritol tetra (meth) acrylate and isocyanuric acid-modified tri (meth) acrylate.
The (meth) acrylate-based monomer may be modified by partially modifying the molecular skeleton, and is modified with ethylene oxide, propylene oxide, caprolactone, isocyanuric acid, alkyl, cyclic alkyl, aromatic, bisphenol, or the like. Can also be used.

Moreover, examples of the polyfunctional (meth) acrylate oligomer include acrylate polymers such as urethane (meth) acrylate, epoxy (meth) acrylate, polyester (meth) acrylate, and polyether (meth) acrylate.
Urethane (meth) acrylate is obtained by reaction of polyhydric alcohol and organic diisocyanate with hydroxy (meth) acrylate, for example.
A preferable epoxy (meth) acrylate is a (meth) acrylate obtained by reacting (meth) acrylic acid with a tri- or higher functional aromatic epoxy resin, alicyclic epoxy resin, aliphatic epoxy resin or the like. (Meth) acrylates obtained by reacting the above aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins and the like with polybasic acids and (meth) acrylic acid, and bifunctional or higher functional aromatic epoxy resins, It is a (meth) acrylate obtained by reacting an alicyclic epoxy resin, an aliphatic epoxy resin or the like with a phenol and (meth) acrylic acid.
The ionizing radiation curable resin can be used alone or in combination of two or more.

  Moreover, as described above, it is preferable to use an ionizing radiation curable resin having a lower degree of hydrophilicity than the quaternary ammonium salt. For this reason, it is preferable that the ionizing radiation curable resin does not have a polar group such as a hydroxyl group or a carboxyl group in the molecule, or has a small amount even if it has a polar group.

In addition, if the molecular weight of the ionizing radiation curable resin is small, the ionizing radiation curable resin may permeate the transparent substrate and adversely affect the scratch resistance, in-plane uniform antiglare properties, and antistatic properties. There is. For this reason, the molecular weight of the ionizing radiation curable resin is preferably 400 or more, and more preferably 500 or more.
When polyester is used as the transparent substrate, dipentaerythritol hexaacrylate (DPHA) is optimal as the ionizing radiation curable resin. Since DPHA is less hydrophilic than quaternary ammonium salt, it has the effect of pushing the quaternary ammonium salt to the surface of the hard coat layer and has good in-plane antiglare and antistatic properties. Easy to do. Furthermore, DPHA is excellent in adhesion to a polyester film, and has high hardness and excellent scratch resistance.

When the ionizing radiation curable resin is an ultraviolet curable resin, the hard coat layer forming ink preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator.
Examples of the photopolymerization initiator include one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyldimethyl ketal, benzoylbenzoate, α-acyloxime ester, thioxanthones, and the like.
The photopolymerization accelerator can reduce polymerization inhibition by air during curing and increase the curing speed. For example, p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester, etc. One or more selected may be mentioned.

  The content of the ionizing radiation curable resin is preferably 60.0 to 95.0 mass% in the total solid content of the hard coat layer forming ink, and preferably 65.0 to 90.0 mass%. More preferably, it is 70.0-85.0 mass%. By making the content of the ionizing radiation curable resin 60.0% by mass or more, the surface hardness can be easily increased, and by making the content of the ionizing radiation curable resin 95.0% by mass or less, other The amount of the component used can be ensured to exhibit antiglare properties and antistatic properties.

<Solvent>
The hard coat layer forming ink preferably contains a solvent in order to improve the coating suitability.
The solvent preferably has a characteristic of pushing up the quaternary ammonium salt to the surface of the hard coat layer in the process of drying the hard coat layer. A solvent having such a characteristic is preferably a solvent having a low degree of hydrophilicity, and examples thereof include ketone solvents such as methyl ethyl ketone and methyl isobutyl ketone.
Moreover, it is preferable that a solvent has the characteristic which is excellent in the dispersibility of translucent particle | grains. Examples of the solvent having such characteristics include propylene glycol monomethyl ether (PGME), cyclohexanone, methyl isobutyl ketone, and the like.
In addition, since toluene which is a general-purpose solvent is inferior in solubility of the quaternary ammonium salt, a solvent composition containing toluene as a main component is not preferable.

Further, in the case of having a primer layer described later between the transparent substrate and the hard coat layer, by using a solvent that dissolves the primer layer, the dissolved resin of the primer layer flows into the hard coat layer, The quaternary ammonium salt can be pushed up to the surface of the hard coat layer to improve the antistatic property. In the case of general-purpose primer layers such as thermoplastic polyester resins, thermoplastic acrylic resins, and thermoplastic urethane resins, examples of solvents that dissolve the primer layers include PGME, propylene glycol monomethyl ether acetate (PGMEA), and methyl ethyl ketone. It is done.
As described above, when the dissolved resin of the primer layer flows into the hard coat layer, the hard coat layer contains the resin constituting the primer layer in addition to the cured product of the hard coat layer forming ink.

From the viewpoint described above, the solvent composition of the hard coat layer forming ink preferably contains 50% by mass or more of the ketone solvent, more preferably 60% by mass or more, and 70 to 90% by mass in the total solvent. More preferably.
Moreover, it is preferable that the sum total of PGME, cyclohexanone, and methyl isobutyl ketone is 50 mass% or more of all the solvents, and it is more preferable that it is 60-80 mass%.
Moreover, it is preferable that the sum total of PGMEA, PGMEA, and methyl ethyl ketone is 5 mass% or more of all the solvents, and it is more preferable that it is 10-25 mass%.

Primer Layer The primer layer is formed between the transparent substrate and the hard coat layer as necessary in order to improve the adhesion between the transparent substrate and the hard coat layer.
The primer layer is mainly composed of a resin. Examples of the resin include thermosetting or thermoplastic polyester resins, urethane resins, acrylic resins, and modified products thereof. Among these, when a thermoplastic resin is used, the primer layer is easily dissolved by the solvent, the dissolved resin of the primer layer flows into the hard coat layer and pushes the quaternary ammonium salt to the surface of the hard coat layer, This is preferable because it is easy to improve the antistatic property.

The thickness of the primer layer is preferably 0.01 to 1.0 μm, and preferably 0.05 to 0.3 μm from the viewpoint of improving adhesion and pushing the quaternary ammonium salt to the surface of the hard coat layer. Is more preferable.
Further, from the viewpoint of pushing the quaternary ammonium salt onto the surface of the hard coat layer, the ratio of the primer layer thickness to the hard coat layer thickness [primer layer thickness / hard coat layer thickness] is 0.01 to 0. .2 is preferable, and 0.02 to 0.15 is more preferable.

Physical Properties of Hard Coat Film The hard coat film preferably has a total light transmittance of JIS K7361-1: 1997 of 80% or more, more preferably 85% or more, and further preferably 90% or more. .

  The hard coat film has a haze of JISK7136: 2000 of preferably 15 to 50%, more preferably 15 to 35%, and more preferably 17 to 30% from the viewpoint of antiglare properties, resolution and contrast. More preferably it is.

The arithmetic average roughness Ra of JIS B0601: 1994 on the surface of the hard coat layer is preferably 0.25 to 0.70 μm from the viewpoint of the balance between antiglare property, resolution and contrast, and is preferably 0.35 to 0. More preferably, it is 55 μm.
Ra and Rz described later are values when the cutoff value is 0.8 mm.

  The ten-point average roughness Rz of JIS B0601: 1994 on the surface of the hard coat layer is preferably 1.50 to 3.50 μm, and preferably 2.00 to 3 in terms of balance between antiglare properties, resolution and contrast. More preferably, it is 30 μm, and further preferably 2.20 to 3.00 μm.

The thickness of the hard coat layer is preferably 1 to 10 μm, more preferably 2 to 8 μm, from the viewpoint of the balance between curling suppression and scratch resistance.
The thickness of the hard coat layer can be calculated from an average value obtained by selecting 10 points in a cross-sectional photograph of the hard coat film by a scanning transmission electron microscope (STEM).

The surface resistivity of the hard coat layer surface is preferably 1.0 × 10 ¹³ Ω / □ or less, and more preferably 1.0 × 10 ¹² Ω / □ or less.

[Method for producing antistatic antiglare hard coat film]
The method for producing an antistatic antiglare hard coat film of the present invention comprises an ionizing radiation curable resin, translucent particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and The leveling agent has reactivity with the ionizing radiation curable resin, and contains 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles. The hard coat layer forming ink is applied onto a transparent substrate, dried, and irradiated with ionizing radiation to form a hard coat layer.

Examples of means for applying the hard coat layer forming ink on the transparent substrate include a gravure coating method, a bar coating method, a die coating method, and a roll coating method.
The drying conditions vary depending on the amount of ink applied, the type of solvent in the ink, etc., and thus cannot be generally stated, but it is preferable to set the drying conditions at 40 to 100 ° C. for 15 to 150 seconds. The drying air speed is preferably in the range of 0.2 to 50 m / s.
The irradiation with ionizing radiation is preferably performed after drying. The amount of ionizing radiation applied varies depending on the amount of ink applied and the proportion of ionizing radiation curable resin in the ink, and cannot be generally stated, but is preferably in the range of 40 to 240 mJ / cm ² .
The embodiment of the hard coat layer forming ink in the method for producing the antistatic antiglare hard coat film of the present invention is the same as the embodiment of the hard coat layer forming ink in the hard coat film of the present invention described above. .

The method for producing an antistatic anti-glare hard coat film of the present invention uses a transparent substrate with a primer layer as a transparent substrate, and the hard coat layer is formed when the hard coat layer is formed on the primer layer. It is preferable to dissolve at least a part of the primer layer with ink.
By dissolving at least part of the primer layer with the hard coat layer forming ink, the dissolved resin of the primer layer flows into the hard coat layer and pushes up the quaternary ammonium salt to the surface of the hard coat layer, thereby preventing antistatic properties. Can be easily improved.

  In order to dissolve at least a part of the primer layer, it is preferable that the primer layer is composed of a thermoplastic resin as described above, and further includes a solvent for dissolving the primer layer in the hard coat layer forming ink. .

[Display device]
The display device of the present invention has the above-described hard coat film of the present invention on the display element, and the hard coat layer side surface of the hard coat film faces the surface opposite to the display element. Are arranged.

Examples of the display element include a liquid crystal display element, an EL display element, and a plasma display element.
Examples of the liquid crystal display method of the liquid crystal display element include an IPS method, a VA method, a multi-domain method, an OCB method, an STN method, and a TSTN method. Since the IPS liquid crystal display element is sensitive to static electricity, the present invention which is excellent in anti-glare property while being excellent in anti-glare property is extremely effective.

  EXAMPLES Next, although an Example demonstrates this invention still in detail, this invention is not limited at all by these examples. “Part” and “%” are based on mass unless otherwise specified.

1. Measurement and Evaluation of Physical Properties of Antistatic Antiglare Hard Coat Films Physical properties of the antistatic antiglare hard coat films of Examples and Comparative Examples were measured and evaluated as follows. The results are shown in Table 1.

1-1. Antiglare property (uniformity of antiglare property)
An evaluation sample in which a black acrylic plate is bonded to a transparent base of the antistatic antiglare hard coat film of Examples and Comparative Examples is placed on a horizontal plane and 1.5 m from the evaluation sample. A fluorescent lamp was placed above and irradiated with the fluorescent lamp. Observation was performed from various angles under an environment where the illuminance on the evaluation sample was 800 to 1200 Lx, and the uniformity of the antiglare property within the surface of the sample was evaluated. 10 people evaluated according to the following criteria 1 to 3, and the average score of 10 people is “A” when the average score is 1.2 or less, “B” when the average score is more than 1.2 to 2.0 or less, The thing more than 2.0-3.0 was set to "C".
1: Antiglare unevenness cannot be recognized in the plane.
2: In-plane anti-glare unevenness can be slightly recognized.
3: Non-glare unevenness can be clearly recognized in the plane.

1-2. Anti-glare (anti-glare level)
The sample for evaluation similar to the above is irradiated with a fluorescent lamp in the same manner as described above, and observed from various angles in an environment where the illuminance on the sample for evaluation is 800 to 1200 Lx. evaluated. 10 people evaluated according to the following criteria 1 to 3, and the average score of 10 people is “A” when the average score is 1.2 or less, “B” when the average score is more than 1.2 to 2.0 or less, The thing more than 2.0-3.0 was set to "C".
1: An image of a fluorescent lamp cannot be recognized at any angle.
2: Although the fluorescent lamp image is reflected, the outline of the fluorescent lamp is blurred and the boundary portion of the outline cannot be recognized.
3: The image of the fluorescent lamp is reflected like a mirror surface, and the outline of the fluorescent lamp (the boundary of the outline) can be clearly recognized.

1-3. The sample for evaluation similar to the above is irradiated with a fluorescent lamp by the same method as described above, and observed from various angles under an environment where the illuminance on the sample for evaluation is 800 to 1200 Lx. Evaluated. 10 people gave an evaluation and all 10 people did n’t care about the color “A”, 1 to 4 people worried about the color “B” 5 or more people worried about the color This was designated as “C”.

1-4. Antistatic Property Based on JIS K6911, the surface resistivity (Ω / □) of the hard coat layer surface of the antistatic antiglare hard coat film was measured. The measuring instrument uses the product name “HIRESTER UP MCP-HT450” manufactured by Mitsubishi Chemical, and the product name “URS probe MCP-HTP14” manufactured by Mitsubishi Chemical Co., Ltd., temperature 25 ± 4 ° C., humidity The surface resistivity (Ω / □) was measured at an applied voltage of 500 V under an environment of 50 ± 10%. In addition, the thing whose surface resistivity exceeds 1.0 * 10 < ¹⁴ > / □ was described as "-" as measurement impossible.

1-5. Haze and total light transmittance The haze of JISK-7136: 2000 and the total light transmittance of JIS K7361-1: 1997 were measured using a haze meter (HM-150, manufactured by Murakami Color Research Laboratory). The light incident surface was the transparent substrate side.

1-6. Ra and Rz
Based on JIS B0601: 1994, the arithmetic average roughness Ra and ten-point average roughness Rz of the hard coat layer surface of the antistatic anti-glare hard coat film of an Example and a comparative example were measured. For measurement, trade name SE-340 manufactured by Kosaka Laboratory Ltd. was used, and the following measurement conditions were used.
[Surface probe for surface roughness detection]
Product name SE2555N manufactured by Kosaka Laboratory Ltd. (tip radius of curvature: 2 μm, apex angle: 90 degrees, material: diamond)
[Measurement conditions of surface roughness measuring instrument]
・ Cutoff value: 0.8mm
・ Evaluation length (reference length): 5 times the cut-off value λc ・ Feeding speed of stylus: 0.5 mm / s
・ Preliminary length: (cutoff value λc) × 2
・ Vertical magnification: 2000 times ・ Horizontal magnification: 10 times

2. Preparation of Antistatic Antiglare Hard Coat Film Antistatic antiglare hard coat films of Examples and Comparative Examples were prepared by the following method. In addition, the coating film (coating film a) formed from the quaternary ammonium salt used in the Example (coating film a), the coating film formed from DPHA (coating film b), and the coating film formed from pentaerythritol triacrylate (coating film c) When the contact angles were compared, it was found that coating film c <coating film a <coating film b.

[Example 1]
On the primer layer of a transparent base material (PET film with a primer layer made of polyester resin, PET film thickness 50 μm, manufactured by Toyobo Co., Ltd., trade name: Cosmo Shine A4300), the ink for forming a hard coat layer having the following formulation is applied. After drying for 30 seconds at 70 ° C. and a wind speed of 5 m / s, the ink is cured by irradiating ultraviolet rays under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) so that the integrated light quantity becomes 100 mJ / cm ^2. A coating layer was formed to obtain an antistatic antiglare hard coat film. The film thickness of the hard coat layer was 2.5 μm.
In addition, the primer layer of the said transparent base material melt | dissolves with the solvent of the ink for hard-coat layer formation of the following prescription. For this reason, it is considered that at least a part of the primer layer is dissolved when the hard coat layer forming ink is applied onto the primer layer of the transparent substrate.

<Hard coat layer forming ink>
Dipentaerythritol hexaacrylate (DPHA) 50 parts Photopolymerization initiator 3 parts (BASF, trade name: Irgacure 184)
-Reactive quaternary ammonium salt-containing composition 50 parts (composition containing 10% reactive quaternary ammonium salt and 90% DPHA)
(Mitsubishi Chemical Corporation, trade name: Iupima UV H6500, solid content 50%)
・ Reactive silicone leveling agent 0.5 parts (Bic Chemie, trade name: UV3500)
-Hydrophobized silica 16 parts (amorphous silica, average secondary particles (volume average): 4.0 μm)
・ Solvent 1 (methyl isobutyl ketone) 70 parts ・ Solvent 2 (methyl ethyl ketone) 13 parts ・ Solvent 3 (PGMEA) 3 parts ・ Solvent 4 (n-butanol) 10 parts ・ Solvent 5 (isopropyl alcohol) 4 parts

[Example 2]
An antistatic antiglare hard coat film was prepared in the same manner as in Example 1 except that the amount of the reactive quaternary ammonium salt-containing composition of the hard coat layer forming ink of Example 1 was changed to 40 parts. Obtained.

[Example 3]
Similar to Example 1 except that the reactive silicone leveling agent of the hard coat layer forming ink of Example 1 was changed to a reactive silicone leveling agent (manufactured by DIC, trade name: Megafax RS-57). Thus, an antistatic antiglare hard coat film was obtained.

[Example 4]
An antistatic antiglare hard coat film was obtained in the same manner as in Example 1 except that the amount of the reactive silicone-based leveling agent added to the hard coat layer forming ink of Example 1 was changed to 0.3 part. .

[Example 5]
An antistatic antiglare hard coat film was obtained in the same manner as in Example 1, except that the amount of the reactive silicone-based leveling agent added to the hard coat layer forming ink of Example 1 was changed to 1.5 parts. .

[Comparative Example 1]
An antistatic antiglare hard coat film was obtained in the same manner as in Example 1 except that the amount of the reactive silicone leveling agent added to the hard coat layer forming ink of Example 1 was changed to 0.1 part. .

[Comparative Example 2]
An antistatic antiglare hard coat film was obtained in the same manner as in Example 1, except that the amount of the reactive silicone leveling agent added to the hard coat layer forming ink of Example 1 was changed to 3 parts.

[Comparative Example 3]
Example 1 except that the reactive silicone leveling agent of the ink for forming the hard coat layer of Example 1 was changed to a non-reactive silicone leveling agent (trade name: SH28, manufactured by Toray Dow Corning). Similarly, an antistatic antiglare hard coat film was obtained.

[Comparative Example 4]
Except for changing the reactive silicone leveling agent of the hard coat layer forming ink of Example 1 to a reactive fluorine leveling agent (manufactured by DIC, trade name RS-72), the same as in Example 1, An antistatic antiglare hard coat film was obtained.

[Comparative Example 5]
On the primer layer of the transparent substrate of Example 1, the antistatic layer-forming ink b having the following formulation was applied and dried so that the thickness after drying was 1.0 μm to form an antistatic layer. Next, a hard coat layer was formed on the antistatic layer by the same method as in Example 1 using the ink obtained by removing the quaternary ammonium salt from the hard coat layer forming ink of Example 1, and antistatic properties were obtained. An antiglare hard coat film was obtained.
<Antistatic layer forming ink b>
・ 25 parts of antimony pentoxide (product name: V3506)
・ 75 parts of PGMEA

[Comparative Example 6]
In the same manner as in Comparative Example 5 except that the antimony pentoxide of the ink b for forming the antistatic layer was changed to antimony-doped tin oxide (trade name: Pertron C-4456S-7, manufactured by Pernox), the antistatic property was prevented. A dazzling hard coat film was obtained.

[Comparative Example 7]
The quaternary ammonium salt-containing composition of the hard coat layer forming ink 1 of Example 1 was changed to a thiophene antistatic agent, and the addition amount was changed to 40 parts in the same manner as in Example 1, An antistatic antiglare hard coat film was obtained.

[Comparative Example 8]
The quaternary ammonium salt-containing composition of the hard coat layer forming ink 1 of Example 1 was changed in the same manner as in Example 1 except that the ionic antistatic agent was changed and the addition amount was changed to 40 parts. An anti-glare hard coat film was obtained.

As is clear from the results in Table 1, the antistatic antiglare hard coat films of Examples 1 to 5 can realize high antiglare and antistatic properties with a single hard coat layer, and in-plane The antiglare property can be made uniform, and coloring can be further suppressed.
In Comparative Example 1, since the content of the reactive silicone leveling agent was small, the action of pulling up the quaternary ammonium salt to the surface of the hard coat layer was insufficient, and the antistatic property was inferior. Moreover, since the thing of the comparative example 1 has little content of a reactive silicone type leveling agent, the uniformity of surface tension becomes inadequate and the surface shape of a hard-coat layer produces unevenness, As a result, in-plane anti-glare property Cannot be made uniform.
In Comparative Example 2, since the content of the reactive silicone leveling agent is large, the action of the reactive silicone leveling agent on the translucent particles and the ionizing radiation curable resin becomes too strong, and the surface shape of the hard coat layer is increased. As a result, unevenness in the surface could not be made uniform.
Comparative Example 3 uses a silicone-based leveling agent that is not reactive with ionizing radiation curable resin, so that the leveling agent gathers in the vicinity of the surface of the hard coat layer, resulting in the vicinity of the surface of the hard coat layer. The proportion of the quaternary ammonium salt cannot be increased and the antistatic property is poor.
Comparative Example 4 uses a fluorine-based leveling agent having a low affinity with the quaternary ammonium salt, so that the quaternary ammonium salt is inhibited from collecting near the surface of the hard coat layer, and has antistatic properties. It was inferior to.
In Comparative Examples 5 and 6, since a metal oxide-based conductive agent was used, the total light transmittance was low, and coloring was caused.
In Comparative Example 7, since a thiophene-based conductive agent was used, the surface shape of the hard coat layer was uneven, and the in-plane antiglare property could not be made uniform.
Since the thing of the comparative example 8 uses the ionic conduction type electrically conductive agent, antistatic property will fall by hardening of a hard-coat layer.

Claims (11)

Having a hard coat layer on a transparent substrate, the hard coat layer,
An ionizing radiation curable resin, translucent inorganic particles, a quaternary ammonium salt and a silicone leveling agent are contained, and the quaternary ammonium salt and the silicone leveling agent are reactive with the ionizing radiation curable resin. And containing a cured product of a hard coat layer forming ink containing 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles. Dazzle hard coat film.   The antistatic antiglare hard coat film according to claim 1, wherein the ionizing radiation curable resin, the quaternary ammonium salt, and the leveling agent have a (meth) acryloyl group. In the total solid content of the hard coat layer forming ink, the ionizing radiation curable resin is 60.0 to 95.0 mass%, the translucent inorganic particles are 1.0 to 25.0 mass%, the first The antistatic antiglare hard coat film according to claim 1 or 2, comprising 1.0 to 20.0 mass% of a quaternary ammonium salt and 0.15 to 2.5 mass% of the silicone leveling agent. . The antistatic antiglare hard coat film according to any one of claims 1 to 3, wherein the translucent inorganic particles are silica. The antistatic antiglare hard coat film according to any one of claims 1 to 4 , wherein a surface resistivity of the surface of the hard coat layer is 1.0 × 10 ¹³ Ω / □ or less. The antistatic property according to any one of claims 1 to 5 , wherein the transparent base material is a transparent base material with a primer layer, and the hard coat layer contains a resin constituting the cured product and the primer layer. Anti-glare hard coat film. Having a hard coat layer on a transparent substrate, the hard coat layer,
It contains an ionizing radiation curable resin, translucent particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and the silicone leveling agent are reactive with the ionizing radiation curable resin. has been made, and viewed including the silicone leveling agent cured product of a hard coat layer forming ink comprising 1.0 to 15.0 parts by mass with respect to the light transmissive particles 100 parts by weight,
An antistatic antiglare hard coat film having a haze of JIS K7136: 2000 of 15 to 50% . It comprises an ionizing radiation curable resin, translucent inorganic particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and the leveling agent are reactive with the ionizing radiation curable resin. And a hard coat layer forming ink containing 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles. A method for producing an antistatic antiglare hard coat film, wherein a hard coat layer containing a cured product of the hard coat layer forming ink is formed by drying and irradiation with ionizing radiation. When using a transparent substrate with a primer layer as the transparent substrate, and forming the hard coat layer on the primer layer, at least a part of the primer layer is dissolved by the hard coat layer forming ink, The manufacturing method of the antistatic glare-proof hard coat film of Claim 8 . It contains an ionizing radiation curable resin, translucent particles, a quaternary ammonium salt and a silicone leveling agent, and the quaternary ammonium salt and the leveling agent have reactivity with the ionizing radiation curable resin. An ink for forming a hard coat layer comprising 1.0 to 15.0 parts by mass of the silicone leveling agent with respect to 100 parts by mass of the translucent particles; Antistatic antiglare hard which forms a hard coat layer containing a cured product of the hard coat layer forming ink so that the haze of JIS K7136: 2000 is 15 to 50% by drying and ionizing radiation irradiation A method for producing a coated film.   An antistatic antiglare hard coat film according to any one of claims 1 to 7 is provided on a display element, and the surface on the hard coat layer side of the antistatic antiglare hard coat film is displayed. A display device arranged to face the surface opposite to the element.