JP2005288780A - Glare shielding hard coat transfer material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glare shielding hard coat transfer material which can form a surface protection reflection prevention layer excellent in glare shield properties etc., on the surface of a substrate, a method for producing the transfer material, a method for forming the surface protection reflection prevention layer, and the plastic substrate by the method. <P>SOLUTION: The glare shielding hard coat transfer material has the sheet-like substrate, a release layer which is formed on one main surface of the substrate and has unevenness on the surface, a hard coat layer formed on the release layer, and an adhesive layer formed on the hard coat layer. The adhesive layer contains an ultraviolet-curable resin and a thermoplastic resin. The transfer material is produced so that the plastic substrate is arranged on the adhesive layer, the release layer is separated from the hard coat layer after thermal transfer, the surface protection reflection prevention layer is formed on one main surface of the substrate through the adhesive layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides antiglare hard coat transfer materials, particularly various displays such as liquid crystal displays, building materials such as outdoor display boards, and the like, without impairing the appearance of these transferred objects, and scratch resistance and stain resistance. In addition to the above, it relates to a hard coat transfer material for forming a surface protective antireflection layer that imparts antiglare properties. Furthermore, the present invention provides a method for producing the antiglare hard coat transfer material, a method for forming a surface protective antireflection layer using the antiglare hardcoat transfer material, and a plastic substrate on which the surface protective antireflection layer is formed. Regarding materials.

Conventionally, as a method for imparting scratch resistance and antiglare property to the surface of a resinous substrate, fine particles such as silica particles are made into a paint together with a binder having scratch resistance, and the paint is applied to the surface of the substrate. Method, or by applying an ultraviolet curable coating on the inner surface of the mold having an inner surface on which fine irregularities are formed, and then irradiating and curing the ultraviolet ray to form a scratch-resistant film on the inner surface of the mold in advance. Casting polymerization is generally used in which a synthetic resin material is injected into the mold and polymerized. (See Patent Document 1)
JP 61-108520 A

However, when scratch resistance and antiglare properties are imparted by the coating method, local surface irregularities may occur during application of the scratch resistance and antiglare coating, and the commercial value may decrease. There was a problem that it was difficult to obtain reproducibility of surface irregularities.
In addition, when performing by casting polymerization method, a scratch-resistant film is formed on a mold with surface irregularities, and a synthetic resin is poured into the mold and polymerized, so that air bubbles easily enter and surface defects are likely to occur. As a countermeasure against this, an important device such as a pressurizing device is required. In addition, hundreds of meter-sized molds are required and polymerization takes time, so that it is not suitable for mass production and productivity is low.

The present invention has been made in view of the above-mentioned problems of the background art, and is inexpensive and reproducible on the surface of a plastic substrate such as a plastic plate, and is excellent in scratch resistance, stain resistance, and antiglare property. Further, the present invention provides an antiglare hard coat transfer material capable of forming a surface protective antireflection layer.
Furthermore, the present invention provides a method for producing the antiglare hard coat transfer material, a method for forming a surface protective antireflection layer using the antiglare hard coat transfer material, and a plastic substrate on which the surface protective antireflection layer is formed. The material is provided.

  As a result of intensive studies to solve the above problems, the present inventors formed a release layer having irregularities on the surface of one main surface of the sheet-like substrate, and adhered to the hard coat layer on the release layer. The present invention has been completed by finding that the above-mentioned problems can be solved if the layers are sequentially laminated and the adhesive layer is a hard coat transfer material containing an ultraviolet curable resin and a thermoplastic resin.

That is, the first invention of the present invention is a sheet-like substrate, a release layer formed on one main surface of the sheet-like substrate and having irregularities on the surface, and a hard coat layer formed on the release layer. And an adhesive layer formed on the hard coat layer, wherein the adhesive layer contains an ultraviolet curable resin and a thermoplastic resin.
Further, the second invention of the present invention is to apply a coating containing resin beads and an electron beam curable resin to one principal surface of the sheet-like substrate to form a release layer having irregularities on the surface, and A paint containing a hard coat resin is applied on the mold layer to form a hard coat layer, and a paint containing an ultraviolet curable resin and a thermoplastic resin is applied on the hard coat layer to form an adhesive layer. This is a method for producing an antiglare hard coat transfer material to be formed.
The third aspect of the present invention provides a plastic base material in contact with the adhesive layer of such an antiglare hard coat transfer material, performs thermal transfer to adhere the plastic base material and the adhesive layer, and then separates them. A method for forming a surface protective antireflection layer, comprising separating a mold layer from a hard coat layer and forming a surface protective antireflection layer on one principal surface of the plastic substrate via an adhesive layer.
The fourth invention of the present invention is a plastic substrate in which a surface protective antireflection layer is formed on one main surface via an adhesive layer by such a method.

  In the transfer material having the structure as in the present invention, the contact area between the release layer and the hard coat layer is uneven, so that the contact area between the release layer and the hard coat layer increases, and the release layer and the hard coat layer Is difficult to peel off. Therefore, if the release layer is peeled off after the transfer material has been attached to the surface of the substrate by the adhesive layer, it usually peels off at the interface between the hard coat layer and the adhesive layer or at the interface between the adhesive layer and the substrate, Occur. However, since the transfer material of the present invention uses an adhesive layer containing an ultraviolet curable resin and a thermoplastic resin, the hard coat layer and the adhesive layer are firmly bonded, and such peeling does not occur. An antiglare hard coat film having excellent film quality can be formed on the substrate surface.

  With the antiglare hard coat transfer material of the present invention, it is possible to improve the scratch resistance, stain resistance, etc. without impairing the appearance of these transferred objects, for various displays such as liquid crystal displays and building materials such as outdoor display boards. In addition, a surface protective antireflection layer that imparts antiglare properties can be formed.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In addition, this embodiment is for demonstrating the summary of this invention, and does not limit this invention unless there is particular limitation.
FIG. 1 is a cross-sectional view showing an example of an antiglare hard coat transfer material according to the present invention. An anti-glare hard coat transfer material 10 of the present invention was formed on a release layer 2 formed on one main surface of the sheet-like substrate 1 and the sheet-like substrate 1 and having irregularities 3 on the surface, and the release layer 2. It consists of a hard coat layer 4 and an adhesive layer 5 formed on the hard coat layer 4. The adhesive layer 5 includes an ultraviolet curable resin and a thermoplastic resin.

  The material for the sheet-like substrate 1 is not particularly limited, and any material can be used as long as it has sufficient strength and can be used for an inexpensive ordinary transfer film. Examples thereof include polyester terephthalate, polypropylene film, acrylic film, polyimide film, polyethylene film, and cellulose acetate film. Further, the thickness of the sheet-like substrate 1 is not particularly limited, but is usually in the range of 5 to 188 μm, preferably 18 to 75 μm. When a film within this range is used, wrinkles are less likely to occur, and undesired elongation does not occur at the time of transfer.

  The resin for forming the release layer 2 is not particularly limited as long as it is a resin having releasability. For example, a thermosetting resin, an electron beam curable resin, or the like is used. Examples of the thermosetting resin include a melamine resin, a silicone resin, an acrylic resin, a urethane resin and the like alone or as a mixture. Examples of the electron beam curable resin include acrylurethane resins, polyester acrylate resins, epoxy acrylate resins, and the like alone or as a mixture. Among these, an ultraviolet curable resin is preferable. There is no restriction | limiting in particular in the film thickness of the mold release layer 2, Preferably it is 0.3-5 micrometers, More preferably, it is 0.5-2 micrometers. If the film thickness is less than 0.3 μm, it may cause transfer failure during transfer. In addition, since the unevenness of the beads contained therein is reduced, it is difficult to obtain the desired antireflection performance. The method for forming irregularities on the surface of the release layer is not particularly limited, but it is preferable to use a method of incorporating beads in the release layer. As the beads, resin beads are preferable. Moreover, it is preferable that the primary particle diameter of the resin bead is 0.3 to 5.0 μm.

  The hard coat layer 4 transfers the unevenness 3 of the release layer 2 to the surface and imparts antiglare characteristics, and is formed from a resin having sufficient hard coat performance and release characteristics of the release layer. . The resin is not particularly limited. For example, if it is a thermosetting type, phenol resin, urea resin, melamine resin, polyurethane resin, epoxy resin, polysiloxane resin and the like can be mentioned. If it is an electron beam curable type, acrylic urethane resin, polyester acrylate resin, Examples include epoxy acrylate resins. In particular, an ultraviolet curable resin among the electron beam curable resins is preferable. There is no restriction | limiting in the film thickness of the hard-coat layer 4, Usually, it selects suitably from the thickness of about 1.0-10 micrometers. If the thickness is smaller than 1.0 μm, curing failure is likely to occur when irradiated with ultraviolet rays. If the thickness is larger than 10 μm, the film is curled and causes wrinkles.

The adhesive layer 5 contains an ultraviolet curable resin and a thermoplastic resin. Examples of the ultraviolet curable resin include acrylic urethane resin, polyester acrylate resin, and epoxy acrylate resin, and those having an acrylate functional group are particularly preferable. Examples of the thermoplastic resin include acrylic resin, vinyl chloride resin, vinyl acetate resin, polyester resin, polyvinyl resin, alkyd resin and the like, and acrylic resin and vinyl acetate resin are particularly preferable. As described above, since the adhesive layer 5 contains an ultraviolet curable resin and a thermoplastic resin, the hard coat layer and the adhesive layer are firmly bonded, and an antiglare hard coat film having excellent film quality is obtained by thermal transfer. It can be formed on the substrate surface.
The mixing ratio of the ultraviolet curable resin and the thermoplastic resin is preferably in the range of 10:90 to 70:30 (weight ratio), and more preferably 10:90 to 50:50. If the ratio of the ultraviolet curable resin is less than 10, adhesion failure is likely to occur between the hard coat layer and the adhesive layer during transfer, and conversely if it is greater than 70, adhesion failure between the adhesive layer and the transfer material occurs. Likely to happen. There is no restriction | limiting in particular in the film thickness of an contact bonding layer, 0.3-5 micrometers is preferable, More preferably, it is 0.5-2 micrometers. If the film thickness is less than 0.3 μm, * adhesive force is not sufficient, which is not preferable. If it is more than 5 μm, the film curls when forming the adhesive layer, which is not preferable.

Furthermore, in the antiglare hard coat transfer material 10 of the present invention, the release layer 2 is formed by applying a material that forms irregularities between the hard coat layer 4 and the release layer 2, preferably a paint containing resin beads. Preferably it is formed. The resin beads contained for forming the unevenness 3 in the release layer 2 are not particularly limited as long as they are not dissolved in a solvent at the time of coating, for example, acrylic beads, silica beads, styrene beads , Melamine beads, silicone beads and the like. The size of the beads is not particularly limited, but is preferably in the range of an average particle size of 0.5 to 10 μm, and more preferably 0.6 to 5 μm, due to surface irregularity characteristics.
It is also effective to modify the surface of the resin beads, and it is particularly preferable to modify the surface using a silane coupling agent because the dispersion of the beads in the paint is greatly improved.
The resin to be used is not particularly limited. For example, a melamine resin having a releasability, a silicone resin, an acrylic resin, a thermosetting resin such as a urethane resin, or a mixture thereof, or an acrylic urethane resin, a polyester acrylate resin, an epoxy acrylate An electron beam curable resin such as a resin can be used, and an electron beam curable resin is preferable. Among the electron beam curable resins, ultraviolet curable resins are preferable.
When the release layer 2 contains resin beads and an ultraviolet curable resin, the mixing ratio is preferably in the range of 30:70 to 70:30. If the ratio of the resin beads is less than 30, sufficient unevenness 3 cannot be formed on the surface of the release layer 2, and if it is more than 70, the film strength of the release layer is lowered, and the release layer is a layer. It is not preferable because of internal destruction.

In the method for producing an antiglare hard coat transfer material of the present invention, a coating layer containing resin beads and an electron beam curable resin is applied to one main surface of a sheet-like substrate to form a release layer having irregularities on the surface. And applying a paint containing a hard coat resin on the release layer to form a hard coat layer, and applying a paint containing an ultraviolet curable resin and a thermoplastic resin on the hard coat layer. An adhesive layer is formed.
The release layer 2, the hard coat layer 4, and the adhesive layer 5 are each formed into a paint by dissolving the above-described resin in a solvent, and the release layer 2 is further uneven between the hard coat layer 4 and the release layer 2. It is formed by containing a material for forming the resin, preferably resin beads, applying the paint, drying and curing. As a curing method, ultraviolet irradiation is preferable.
The solvent is not particularly limited. For example, alcohols such as methanol and ethanol, ketones such as methyl ethyl ketone and methyl isobutyl ketone, esters such as methyl acetate and ethyl acetate, and cellosolves such as 2-ethoxyethanol are used.
As a coating method, a normal coating method such as a gravure coating method, a roll coating method, a screen printing method, a knife coater method, a reverse roll coater method, or a kiss coater method can be used.

Next, a method of thermally transferring the hard coat layer 4 using the antiglare hard coat transfer material 10 of the present invention and forming a surface protective antireflection layer on one main surface of the plastic substrate will be described.
First, as shown in FIG. 2A, a plastic substrate 6 is disposed on the surface of the adhesive layer 5 of the hard coat transfer material 10 described above. At this time, the adhesive layer 5 is cured. The plastic substrate 6 is not particularly limited as long as it is made of plastic, and examples thereof include various displays such as a liquid crystal display and building materials such as an outdoor display board. Examples of the material include acrylic resin.
Next, when thermal transfer is performed using a heat roller or the like, the adhesive layer 5 is softened and bonded to the plastic substrate 6. Next, when the release layer 2 is peeled off, as shown in FIG. 2B, the release layer 2 is detached from the hard coat layer 4, and the unevenness 3 on the surface of the release layer 2 is the surface of the hard coat layer 4. Is transcribed. That is, the transferred hard coat layer 4 forms a surface protective antireflection layer 7 having irregularities on the surface on one main surface of the plastic substrate 6 via the adhesive layer 5. In this way, an antiglare hard coat substrate 20 in which the plastic substrate 6, the adhesive layer 5, and the surface protective antireflection layer 7 are laminated is obtained.

  By using the anti-glare hard coat transfer material 10 of the present invention as described above, in addition to friction resistance, contamination resistance, etc. on one main surface of the plastic substrate 6 without impairing the appearance of the substrate. The surface protective antireflection layer 7 that imparts antiglare properties can be formed.

(Example)
Examples of the present invention will be described below, but the scope of the present invention is not limited to these examples.

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above release layer coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, T-60) sheet-like substrate, dried at 100 ° C, irradiated with UV rays, cured and released. A layer was formed.
Next, 50.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol and 40.0 g of methyl ethyl ketone were blended, and the paint mixed with stirring with a stirrer was released. The layer was coated with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

15.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 15.0 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The release layer coating is applied to one side of a 38 μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet substrate with a bar coater, dried at 100 ° C., irradiated with ultraviolet light, cured and released. A mold layer was formed.
Next, an ultraviolet curable coating (manufactured by Sumitomo Osaka Cement Co., Ltd., trade name: Sumise Fine R-308) is applied onto the release layer with a bar coater, preliminarily dried at 60 ° C., and then irradiated with ultraviolet rays to be cured. Then, a hard coat layer with an antistatic function was formed.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

Acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) (5.0 g) were mixed with isopropyl alcohol (IPA) (40.0 g), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 25.0 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above release layer coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, T-60) sheet-like substrate, dried at 100 ° C, irradiated with UV rays, cured and released. A layer was formed.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

10.0 g of silicone beads (Toshiba Silicone Co., Ltd., trade name: Tospearl 120, average particle size: 2.0 μm) was mixed with 40.0 g of methyl ethyl ketone, and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min To obtain a release layer coating.
The above release layer coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, T-60) sheet-like substrate, dried at 100 ° C, irradiated with UV rays, cured and released. A layer was formed.
Next, 50.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as the release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, UV-curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502) 15.0g, Acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A paint in which g was dissolved in methyl ethyl ketone was applied with a bar coater, preliminarily dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer to produce an antiglare hard coat transfer material.

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-500, average particle size: 5.0 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The coating material was coated with a bar coater on one side of a 38 μm thick polyethylene terephthalate (Toray Industries, T-60) sheet substrate, dried at 100 ° C., then irradiated with ultraviolet rays, and cured to form a release layer. .
Next, 50.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as the release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-1000, average particle size: 10.0 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, UV-curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502) 15.0g, Acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

10.0 g of acrylic beads (Soken Chemicals, trade name: MS-300K, average particle size: 0.1 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 15.0 g of UV curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502), acrylic thermoplastic resin (Mitsubishi Rayon Co., Ltd., trade name: BR-80) 15.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.

15.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 15.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, UV-curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502) 9.0g, Acrylic thermoplastic resin (Mitsubishi Rayon Co., trade name: BR-80) 21.0 A coating material in which g was dissolved in methyl ethyl ketone was applied with a bar coater, pre-dried at 120 ° C., and then irradiated with ultraviolet rays to form an adhesive layer, thereby producing an antiglare hard coat transfer material.
(Comparative Example 1)

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 30.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic V-5502) was dissolved in methyl ethyl ketone with a bar coater and pre-dried at 120 ° C. Thereafter, ultraviolet ray irradiation was performed to form an adhesive layer, and an antiglare hard coat transfer material was produced.
(Comparative Example 2)

10.0 g of acrylic beads (Soken Chemical Co., Ltd., trade name: MX-150, average particle size: 1.5 μm) was mixed with 40.0 g of isopropyl alcohol (IPA), and mixed and dispersed with a biomixer at 6000 rpm for 10 minutes. To this paint, add 10.0 g of diacetone alcohol, 10.0 g of methyl ethyl ketone (MEK), 20.00 g of UV curable resin (product name: Aronix UV-3701, manufactured by Toagosei Co., Ltd.), and disperse again with a biomixer at 6000 rpm for 10 min. To obtain a release layer coating.
The above coating is applied to one side of a 38μm thick polyethylene terephthalate (Toray Industries, Inc., T-60) sheet-like substrate, dried at 100 ° C, irradiated with ultraviolet light, and cured to form a release layer. did.
Next, 50.0 g of ultraviolet curable resin (Dainippon Ink Chemical Co., Ltd., trade name: Unidic 17-813), 10.0 g of diacetone alcohol, and 40.0 g of methyl ethyl ketone were blended, and the paint mixed by stirring with a stirrer was used as a release layer. It was coated on the top with a bar coater. After pre-drying at 100 ° C., UV irradiation was performed and the film was completely cured to form a hard coat layer.
Furthermore, on the hard coat layer, 30.0 g of acrylic thermoplastic resin (trade name: BR-80, manufactured by Mitsubishi Rayon Co., Ltd.) and a paint in which methyl ethyl ketone is dissolved are applied with a bar coater and dried at 120 ° C. to form an adhesive layer. Then, an antiglare hard coat transfer material was produced.

The antiglare hard coat transfer materials obtained in Examples 1 to 9 and Comparative Examples 1 and 2 were transferred by the following method.
An acrylic resin plate (made by Asahi Kasei Co., Ltd., trade name: Delaglass) is used as the transfer target, and the adhesive layer of the transfer film produced is brought into close contact with the surface of the resin plate and heated with a silicone rubber roller under pressure. Thereafter, the release layer was peeled off, and the antiglare hard coat layer was transferred to the surface of the acrylic resin plate.
The acrylic resin plate on which the obtained antiglare hard coat layer was formed was evaluated according to the following evaluation criteria.

(Evaluation methods)
Total light transmittance and haze value: Measured according to JIS K 7105.
Glossiness (60 °): Measured according to JIS K 5600.
Pencil hardness: Measured according to JIS K 5600.
Tape peeling test: Evaluation was performed in accordance with the operation of the grid pattern method of JIS K 5400. The state where no peeling occurred was 100/100, and the state where all peeling occurred was 0/100.
Surface resistivity: Implemented according to JIS K 6011.
The results are shown in Table 1.

  In Examples 1 to 9 in which the adhesive layer used a transfer material containing an ultraviolet curable resin and a thermoplastic resin, peeling did not occur at all, and the film was excellent in scratch resistance, stain resistance, and antiglare property. On the other hand, in Comparative Examples 1 and 2 using a transfer material in which the adhesive layer does not contain either an ultraviolet curable resin or a thermoplastic resin, the hard coat layer and the adhesive layer are peeled off when the release layer is peeled off. However, the antiglare hard coat layer could not be transferred to the acrylic resin plate.

  The present invention can be used in fields such as various displays and outdoor display boards.

It is a cross-sectional schematic diagram which shows an example of the glare-proof hard coat transfer material of this invention. It is a cross-sectional schematic diagram which shows the method of forming a surface protection antireflection layer in one main surface of a plastic substrate using the anti-glare hard coat transfer material of this invention.

Explanation of symbols

10. · Hard coat transfer material 1 · · Sheet substrate 2 · · Release layer 3 · · Concavity and convexity · · Hard coat layer 5 · · Adhesive layer 6 · · Plastic substrate 7 · · Surface protective antireflection layer 20 ·・ Hard coat substrate

Claims (6)

  A sheet-like substrate, a release layer formed on one main surface of the sheet-like substrate and having an uneven surface, a hard coat layer formed on the release layer, and formed on the hard coat layer An anti-glare hard coat transfer material comprising an adhesive layer, wherein the adhesive layer contains an ultraviolet curable resin and a thermoplastic resin.   2. The antiglare hard coat transfer material according to claim 1, wherein the release layer has irregularities formed by a paint containing resin beads.   The antiglare hard coat transfer material according to claim 1 or 2, wherein a primary particle diameter of the resin beads is 0.3 to 5.0 µm.   A coating containing resin beads and an electron beam curable resin is applied to one main surface of the sheet-like substrate to form a release layer having irregularities on the surface, and a hard coat resin is contained on the release layer Production of anti-glare hard coat transfer material that forms a hard coat layer by applying a paint, and then applies a paint containing an ultraviolet curable resin and a thermoplastic resin on the hard coat layer to form an adhesive layer. Method.   A plastic base material is disposed in contact with the adhesive layer of the antiglare hard coat transfer material according to any one of claims 1 to 3, and thermal transfer is performed to adhere the plastic base material and the adhesive layer. A method for forming a surface protective antireflection layer, comprising separating a layer from a hard coat layer and forming a surface protective antireflection layer on one principal surface of the plastic substrate via an adhesive layer. A plastic base material, wherein a surface protective antireflection layer is formed on one main surface via an adhesive layer by the method according to claim 5.

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