JPH0469363B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transfer material having excellent anti-glare effects, high surface hardness, etc. The transfer material of the present invention can be widely used for various glass substrates, plastic substrates, etc. In particular, it can be used for the front panels of various displays that have been developed in recent years, various membrane switches, various ornaments, various lenses, various architectural window glasses, various automobile window glasses, etc.

[Conventional technology and problems to be solved]

Conventionally, the following anti-glare treated products are known.

There are materials in which the surface of the base material is directly textured, and examples of the texture processing methods include sandplast processing, press processing, chemical etching, buffing, or a combination of two or more of these methods. Furthermore, there is one in which a metal vapor-deposited thin film layer having a predetermined refractive index is formed on the surface of the base material.

However, the manufacturing process of anti-glare treated products was complicated and took a long time, and the yield rate was low. In addition, in the anti-glare treated product, the materials used for the metal vapor deposited thin film layer are limited, the cost of the material is high, and furthermore, it is difficult to form the metal vapor deposited thin film layer by continuous processing.

In recent years, Japanese Patent Application Laid-Open No. 59-58036 has been published as an invention that improves the drawbacks of these anti-glare processed products. This invention provides ultraviolet curable acrylic urethane resin,
This is a method for producing a sheet with excellent anti-glare effects and scratch resistance, in which a composition containing an acrylic resin as a film conditioner, silica particles, and a solvent is applied onto a base sheet and cured by ultraviolet rays after drying. .

However, the sheet produced by this manufacturing method is originally used by being attached to the surface of a substrate to be antiglare-treated by a laminating method or the like. Therefore, the composition layer and the base sheet are formed on the surface of the base material. Therefore, the light transmittance was decreased mainly due to the base sheet.

[Means for solving problems]

In order to solve the various drawbacks of the conventional anti-glare treated products mentioned above, the present inventors have conducted research and development on hard anti-glare coatings for many years, and as a result, they have finally discovered a remarkable hard anti-glare coating. This led to the invention of a transfer material. The present inventors have invented a hard/antiglare film transfer material characterized by sequentially forming on a base sheet at least a peelable antiglare film layer and a hard layer that has excellent transparency and can be hardened by various treatments. It is. With the completion of the present invention, an industrially advantageous hard anti-glare film transfer material can be provided to the market, and it is clear that the performance of products using this material is significantly superior to conventional anti-glare treated products. It became.

Hereinafter, the present invention will be explained as an example using drawings.

The basic layer structure of the present invention is shown in FIGS. 1, 2, and 3.

In FIG. 1, a release antiglare film layer, a hard layer, and an adhesive layer are laminated in this order on a base sheet.

The base sheet and each layer will be explained respectively.

As the base sheet 1, a commonly used base sheet for transfer materials can be used. for example. Flexible resin films, such as polyethylene film, polypropylene film, polyester film, nylon film, polystyrene film, etc., can be used singly or in combination with two or more kinds of films.

The peel-off anti-glare film layer 2 is formed by adding a filler of inorganic compound powder such as metal oxide, silica, or silicate to a silicon-based, fluorine-based, or melamine-based resin ink to form a peel-off anti-glare film layer surface. It is also possible to form a surface with fine irregularities.

For the hard layer 3, an ink composition having excellent transparency and having as a main component a thermosetting resin, an ultraviolet curable resin, or an electron beam curable resin that can be cured by various treatments can be used. Examples of thermosetting resins include phenol resins, melamine resins, urea resins, epoxy resins, unsaturated polyester resins, alkyd resins, urethane resins, etc., either singly or in combination of two or more. In addition, examples of ultraviolet curable resins or electron beam curable resins include unsaturated polyester resins, acrylic resins,
There are urethane resins used singly or in combination of two or more types. The hard layer 3 can be formed by adding a filler of the above-described inorganic compound powder to these ink compositions to adjust the refractive index of light. If the thickness of the hard layer is in the range of 1 μm to 30 μm, the characteristics can be sufficiently exhibited.

The colored pattern layer 4 forms patterns such as designs, symbols, characters, etc. using ink of a desired color.

The adhesive layer 5 can be formed using a highly transparent resin adhesive. Examples of such resins include acrylic resins, vinyl resins, and silicone resins.

Methods for forming each of the above layers include a printing method, a coating method, and the like. Figures 2 and 3 are
A colored pattern layer 4 is added to the basic layer configuration shown in FIG. The colored pattern layer 4 may be formed on the hard layer 3 as shown in FIG. 2, or may be formed on the peelable anti-glare film layer 2 as shown in FIG. By adding the colored pattern layer to the basic layer structure in this way, it has become possible to perform anti-glare treatment and painting of the colored pattern layer in the same process, which was previously impossible.

A painting method will be explained using a practical example using the hard anti-glare film transfer material of the present invention.

First, the adhesive layer of the hard anti-glare film transfer material of the present invention is brought into contact with a transparent polystyrene plate, and then the transfer layer is uniformly transferred onto the polystyrene plate using heated silicone rubber, and then the base sheet is peeled off and cooled. do.

Next, if the main component of the ink composition of the hard layer 3 is a thermosetting resin, the transfer body is heated. The hard layer 3 can be sufficiently hardened by performing this heating in a temperature range of 100° C. to 300° C. for about 5 minutes to 60 minutes.
When the main component of the ink composition of the hard layer 3 is an ultraviolet curable resin, the surface of the object to be transferred is irradiated with ultraviolet rays. Although the irradiation time of ultraviolet rays is not particularly limited, the hard layer 3 can be sufficiently cured in 3 seconds to 40 seconds. Further, when the main component of the ink composition of the hard layer 3 is an electron beam curable resin, the surface of the transfer target is irradiated with an electron beam, and the irradiation time of the electron beam is 0.1 seconds to 60 seconds. The hard layer 3 can be sufficiently hardened at a dose of 0.01 Mrad to 15.0 Mrad, assuming that the irradiation dose corresponding to 100 ergs of energy per gram is 1 rad.

By the above operations, a homogeneous hard layer 3 was formed on the transparent polystyrene plate.

〔Effect of the invention〕

Conventional anti-glare treated products had difficulties in the manufacturing process and drawbacks in the performance of the processed product, but the hard/anti-glare film transfer material that is the anti-glare treated product of the present invention has After the layers are transferred, the base sheet is peeled off and subjected to anti-glare treatment, so the manufacturing process is easy, the product is inexpensive, and it has excellent light transmittance. The hard/anti-glare film transfer material referred to in the present invention is generally widely used as a transfer layer having excellent anti-glare effects and high surface hardness can be placed on various glass substrates, plastic substrates, etc. This is considered to have extremely valuable effects industrially.

[Brief explanation of the drawing]

1 to 3 are schematic enlarged sectional views showing the layer structure of the hard/antiglare film transfer material of the present invention. 1...Base sheet, 2...Peelable anti-glare film layer, 3
...Hard layer, 4...Colored pattern layer, 5...Adhesive layer.

Claims (1)

[Scope of Claims] 1. A hard anti-glare film transfer material, comprising a base sheet, and at least a peelable anti-glare film layer and a hard layer with excellent transparency that can be hardened by various treatments. 2. The hard/antiglare film transfer material according to claim 1, wherein the hard layer is formed of a thermosetting resin, an ultraviolet curable resin, or an electron beam curable resin.