JPS5856852A - Decorative board, surface of woody veneer thereof is reinforced, and its manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board with a reinforced wooden veneer surface and a method for manufacturing the same, in which a wooden veneer (2) is adhered to the surface of a substrate +1), and the surface of the wooden veneer is A polyvinyl chloride resin layer (3
) The surface of a wooden veneer is strengthened and the surface of the wooden veneer is strengthened. The above paste is semi-gelled, and then this wood veneer (
The surface of the wood veneer is strengthened by adhering 2) onto the substrate fll with an adhesive (4) and heating it to completely gel the polyvinyl chloride paste and harden the adhesive (4). The method for manufacturing decorative laminates is considered to be a merged invention.

In order to obtain a decorative board by pasting a wooden veneer on a substrate such as plywood, the hardness of the light surface of the wooden veneer and the pushing hardness f are important.
It is necessary to improve the surface strength in terms of (Percoll hardness), abrasion resistance, water resistance, chemical resistance, etc. Therefore, in the past, paint was mainly applied to the surface of the wood veneer to strengthen the surface of the wood veneer. However, resin paints have a high solvent content and low resin content, so
In order to strengthen the surface of a veneer, it was necessary to apply paint several times to increase the thickness, which was a very time-consuming process.

In addition, the WPC method (WPC) strengthens wood by infiltrating resin such as polyester-styrene resin into the wood and curing it.
Wocxl Plastic Cambination
) is also commonly used, but this method often has problems such as high equipment costs and poor workability.

The present invention has been made in view of the above points, and a specific object of the invention is to provide a decorative board whose surface is effectively reinforced, and which can be manufactured easily and efficiently. The object of the combined invention is to provide a method for producing.

The present invention will be explained in detail below using examples. First, wood veneer (2
) Apply PVC Plastyryl paste to the light side of the panel. As this paste, for example, one having the following composition can be used.

Also, use a sprayer to apply the paste to the wood veneer (2).
At this time, the paste has a high viscosity, so it is possible to apply a large amount at one time, and since it does not contain a solvent that is not a component of the resin layer, it can be applied in one go. A sufficiently thick resin layer can be formed. The appropriate coating amount is about 300 to 500 f/tsubo.

After applying the polyvinyl chloride paste to the surface of the wood veneer (2) in this way, the wood veneer (2) is placed in a dryer and heated to semi-gel the polyvinyl chloride paste. let By semi-gelling, the cypaste loses its fluidity. Further, since it is only necessary to semi-gelatize, only a small amount of heating heat is required.

Next, this wood veneer (2) is pasted onto a substrate (1) such as plywood coated with adhesive (4), and heated further to completely gel the semi-gelled polyvinyl chloride paste. At the same time, the adhesive (4) is cured. In this way, as shown in the figure, the wooden veneer (
1) is attached, and the surface of the wood veneer (1) is covered with a polyvinyl chloride resin layer (3) to obtain a surface-strengthened decorative board.

According to the specific invention of the present invention, the surface of the wooden veneer can be effectively strengthened by the polyvinyl chloride resin layer. In addition, in the combined invention of the present invention, a resin layer is formed by applying polyvinyl chloride paste to the surface of a wooden veneer and baking it, so polychloride and vinyl paste, which does not contain a solvent, can be applied once. It is possible to form a resin layer of sufficient thickness with the application of First, the polyvinyl chloride paste applied to the wood veneer is heated to a semi-gelatinous state to lose its fluidity, and then the wood veneer is bonded to the substrate with adhesive, and then heated further to form the polyvinyl chloride paste. Since the adhesive is cured at the same time as the paste is completely gelled, the adhesive can also be cured using the heat applied when the polyvinyl chloride paste is semi-gelled to completely gelled. Heat can be used efficiently, and when the wood veneer is bonded to the board, the PVC paste is in a semi-gelled state and has no fluidity, so it does not interfere with the bonding process. Moreover, when the polyvinyl chloride paste is heated to gel, the wood veneer is also heated, and the wood veneer can be dried at the same time, making efficient use of heat possible. It is something.

[Brief explanation of drawings]

The attached drawing is a partially cutaway sectional view showing an embodiment of the present invention, in which (1) is a substrate, (2) is a wooden veneer, (3) is a resin layer, and (4) is an adhesive. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] (11) A surface of a wood veneer characterized by having a wood veneer adhered to the surface of a substrate, and a polyvinyl chloride resin layer being formed on the surface of the wood veneer. Decorative board with reinforced adhesive. A method for manufacturing a decorative board with a reinforced surface of a wood veneer, characterized by completely adhering the wood veneer and heating it to completely gel the polyvinyl chloride paste and harden the adhesive.