JPH08267406A - Manufacture of decorative board - Google Patents

Abstract

PURPOSE: To make it possible to visualize a profundity without spoiling the qualitative touch of a wood base by transferring a non-concealable pictorial pattern layer to the surface of the dyed wood base. CONSTITUTION: A transfer sheet with a strip-off layer laminated on a non- concealable pictorial pattern layer is prepared by printing an image in a gravure style using an ink for a pictorial pattern layer containing a binder of, for example, an acrylio resin separation agent and an acrylic resin, on the surface of a transparent polyethylene terephthalate film as a mold-releasing base sheet. On the other hand, a pecan wood as a white wooden-tone wood base is soaked in a dye solution, and then is dyed by removing a solvent by evaporation. Next, an adhesive is applied to the surface of the dyed wood base, and the pictorial pattern layer surface of the transfer sheet is stacked on the adhesive surface of the wood base and both are adhered together by pressure. After the lapse of a specified time, a transparent finish coated layer is formed on the surface of the wood base after transfer by stripping off the mold-releasing base sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative board provided with a high design pattern without impairing the texture of a wooden base material.

[0002]

2. Description of the Related Art Conventionally, as a decorative board having a high design pattern without deteriorating the texture of a wood base material, Jitsuko 4-954.
In order to prevent the wood grain pattern of plywood from being covered, a high-grade wood grain pattern printed or transferred is superimposed on the transparent coating film disclosed in Japanese Patent Publication No. JP Decorative plywood, Japanese Examined Sho 54-44
No. 711, a thin plate of wood having a complicated curve or the like is coated with a synthetic resin, and a transfer pattern printed with a sublimable dye on a separately prepared transfer sheet is sublimated to transfer the dye. There is a decorative board which is formed by permeating the inside of a layer coated with a synthetic resin and further forming a transparent surface protective layer film on the layer.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the decorative plywood disclosed in Japanese Patent Publication No. 4, although a transparent coating film made of transparent paint is formed on the surface of the plywood by utilizing the wood of the plywood, since the transparent coating film is present on the plywood, it is a wood base material. However, there is a drawback in that the feeling of depth of the decorative plate cannot be expressed. Further, in the decorative board disclosed in Japanese Patent Publication No. 54-44711, the sublimation dye on the transfer sheet can be used to give an arbitrary pattern on the board, but the surface of the wood is not dyed with the sublimation dye. Since the necessary synthetic resin is coated, the texture of the wooden base material is impaired, and therefore, there is a drawback that the depth feeling of the decorative material cannot be expressed. The present invention
The present invention has been conceived in order to solve the drawbacks of the conventional techniques as described above, and an object thereof is to provide a high-decorative decorative board that expresses a feeling of depth without impairing the texture of the wooden base material. .

[0004]

In order to achieve the above object, the first invention of the present invention is to provide a pattern layer having no concealing property by transfer on the surface of a wood substrate dyed with a dye. A method of manufacturing a decorative board is described. A second invention of the present invention is summarized by a method of manufacturing a decorative board in which a transparent topcoat layer is provided on the picture layer in the first invention. The third invention of the present invention is summarized by a method for producing a decorative board in which the dyes of the first and second inventions are metal-containing dyes.

The decorative board of the present invention will be described in more detail below.

As the wood base material of the present invention, wood veneer, wood plywood, particle board, medium density fiberboard (MDF) and the like are used. Preferably, a pecan material, a pine material, a lauan material, a lamin material, or the like, which is a white wood-like wood base material having a high design effect by the manufacturing method of the present invention and is a relatively inexpensive wood base material, is used.

Examples of the dye of the present invention include natural dyes such as animal dyes and plant dyes, and synthetic dyes. Examples of preferable chemical structures of dyes for dyeing a wood substrate include azo type and anthraquinone type.

The metal-containing dye of the third invention of the present invention is an azo dye to which a heavy metal such as chromium is added, and the color is
It has yellow, brown, orange, red, cyanine, green, and black strains, and has excellent weather resistance.

Examples of the dyeing method using the dye of the present invention include brush coating, impregnation, roll coating and offset.

The transfer sheet used in the transfer of the present invention has a structure in which a pattern layer and, if necessary, an adhesive layer are provided on a releasable substrate sheet.

Examples of the releasable substrate sheet of the transfer sheet of the present invention include polyester resin films such as polyethylene terephthalate, polybutylene terephthalate, ethylene terephthalate / isophthalate copolymer, polyolefins such as polyethylene and polypropylene, A coated paper coated with a release resin such as a silicone resin is used, and a thickness of about 10 μm to 200 μ can be used. If necessary, a release layer may be further formed on the resin film by using a silicone resin, a melamine resin, a polyolefin or the like.

Furthermore, when it is desired to impart a desired matte or uneven pattern to the surface of the protective layer after transfer, the surface of the releasable base material sheet or the release layer is formed into a reverse uneven pattern having the same shape as the desired unevenness. An uneven pattern may be formed. Examples of such an uneven pattern include matte, hairline, wood grain conduit, and line-shaped groove.

The pattern layer of the transfer sheet of the present invention comprises a single layer or two or more layers of a pattern layer provided with a pattern or a pattern or an entire ink layer. This pattern layer is formed by printing or applying an ink in which a coloring agent such as a dye or a pigment is added to a binder, and one having no concealing property is selected. Further, by using a pigment having a glittering property such as aluminum powder and titanium oxide-coated mica as the pigment, a glittering pattern layer can be formed. The resin material of the binder of this pattern layer is an acrylic resin such as polymethylmethacrylate, a thermoplastic resin such as vinyl chloride vinyl acetate copolymer resin, an isocyanate compound and a polyol compound, a room temperature cure such as an unsaturated polyester resin, or a thermosetting resin. Ordinary resins such as curable resins, monomers having an acryloyl group or methacryloyl group, and preionizing ionizing radiation curable resins can be used.

The adhesive layer optionally provided on the transfer sheet of the present invention is a layer for transferring and adhering the pattern layer to the wood base material, such as a heat sensitive adhesive, a room temperature curing adhesive, an ionizing radiation curable adhesive and the like. It can be formed by applying a solvent-soluble type, a solventless type, an emulsion type or the like. The adhesive layer may be omitted if the above-mentioned pattern layer itself has sufficient adhesiveness. Here, the heat-sensitive adhesive exhibits adhesiveness by heating, and a thermoplastic resin, an ionomer or the like is usually used.

The adhesive used for the adhesive layer may be applied to the surface of the wood base material to form the adhesive layer.

A release layer may be provided between the releasable substrate sheet and the pattern layer of the transfer sheet of the present invention. This release layer serves as a surface layer on the side of the wooden base material when the release-releasing base material sheet is peeled off after transfer. Before transfer, the transfer layer such as a pattern layer or an adhesive layer is used as a release base. It is held on a material sheet, facilitates peeling between the releasable substrate sheet and the transfer layer after transfer, protects the transferred pattern layer, and further adheres to the paint when painting on it Fulfills the function of improving sex. As the resin material constituting the release layer, the same thermoplastic resin as the resin material of the binder used in the pattern layer,
A thermosetting resin, an ionizing radiation curable resin or the like can be used.

The transfer method of the present invention is described in JP-B-59-59.
In the lapping method disclosed in Japanese Patent Publication No. 51900, Japanese Patent Publication No. 61-5895, Japanese Patent Publication No. 3-2666, etc., when a sheet is attached to a columnar body, a pressing roller is used on each side surface of the columnar body. , Sequentially sticking sheets (For example, in the case of sticking to a square pole, the sheets are sequentially sticked to the upper side surface, left and right side surfaces, lower side and finally to the four side surfaces) Etc. are suitable.

The transparent top coat layer of the present invention can be appropriately selected from known ones. For example, as a binder, two-component curing type polyurethane, polyester, epoxy using a curing agent such as an isocyanate compound and an amine compound,
Fluorine-based resins such as melamine and polyvinylidene fluoride,
A silicon-based resin such as polysiloxane, a monomer having an acryloyl group or a methacryloyl group, an ionizing radiation curable resin made of a prepolymer, or the like can be used.
As a coating method, a usual method such as brush coating, spray coating, gravure coating and roll coating can be used.

[0019]

[Function] Since the surface of the dyed wood base material can be seen through the non-concealing design layer provided by transfer, the design feeling of the design layer and the texture of the wood base material are fused to add a sense of depth. It will have a nice appearance. In particular, when a high-grade wood pattern is used as the pattern layer, the appearance of a decorative board having a beautiful name tree design can be obtained by using a relatively inexpensive wood base material.

[0020]

EXAMPLES Next, examples of the method for manufacturing a decorative board according to the present invention will be specifically described.

(Example 1) An acrylic resin release agent (manufactured by Showa Ink Mfg. Co., Ltd., peeling 46-) was used on the surface of a 25 μm thick transparent polyethylene terephthalate film (Toray, S-10) which is a releasable substrate sheet. 7) and gravure printing using a pattern layer ink using an acrylic resin as a binder to obtain a transfer sheet in which a release layer and a pattern layer are laminated. On the other hand, a pecan material, which is a wood base material, was dipped in the following dye solution, and then the solvent was removed by volatilization to dye it in a yellowish color. Metal-containing dye (manufactured by BASF, Neozepon) 1 part by weight Solvent toluene 100 parts by weight A two-component curing type urethane adhesive (RL-95, manufactured by Kanebo) was applied to the surface of the dyed wood base material. Next, the pattern layer surface of the above-mentioned transfer sheet was superposed so as to be in contact with the adhesive surface of the wooden base material and pressure-bonded. After the lapse of 24 hours, the releasable substrate sheet was peeled and removed. A urethane-based paint (manufactured by Wakoshin Co., Ltd.) having an isocyanate compound as a curing agent was applied to the surface of the release layer of the wood-based material after the transfer to form a top coating layer to obtain a decorative board.

[0022]

According to the method for manufacturing a decorative board of the present invention, it is possible to obtain a decorative board with a high design that expresses a feeling of depth without impairing the texture of the wooden base material. Furthermore, since the wood-containing base material is dyed with a metal-containing dye, it is possible to obtain a decorative board which is free from discoloration and has excellent weather resistance.

Claims (3)

[Claims] 1. A method for producing a decorative board, comprising a pattern layer having no concealing property formed by transfer on the surface of a wood base material dyed with a dye. 2. A method for producing a decorative board, comprising a transparent topcoat layer provided on the picture layer according to claim 1. 3. A method for producing a decorative board, wherein the dye according to claim 1 or 2 is a metal-containing dye.