JPS61270109A - Manufacture of board material - 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] Industrial applications The present invention relates to a method for manufacturing a plate material with decorative properties.

Conventional techniques and their problems In the past, there have been many decorative board materials such as wood boards, resin boards, and metal boards, but all of them are made of a single material, so they have limited decorative properties, especially in their gradual development. It lacked novelty. There were also plates made of unsaturated polynisdel mixed with rock fragments, but
The hard appearance of rock may not be suitable for decorative purposes, which limits its use.

The object of the present invention is to solve the problems of the prior art and provide a simple method for manufacturing a board made of a single composite material that has innovative decorative properties and exhibits a soft texture.

The object of the present invention to solve the problems is to provide a method for producing a board material, which is characterized in that wood pieces are placed in polyurethane before curing, spaced apart from each other, and are cut into boards after the polyurethane is cured. achieved.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a polyurethane resin mass (1) containing wood pieces (2) arranged spaced apart from each other.

Such a resin mass can be cured after pouring uncured polyurethane into a mold in which a piece of wood (2) is placed, or hardening after soaking a piece of wood (2) into polyurethane before curing, etc. It can be obtained by any suitable method. The polyurethane (3) in the resin mass (1) can be colored or reinforced with glass fiber, potassium titanate fiber, mica, etc., if necessary. The shape of the resin mass (1) can be determined as appropriate depending on the shape and size of the required plate material. next,
The cured resin mass (1) is heated to the desired thickness in Figure 1 A-AS
Cut as shown in B-B and C-C, and #! A plate material (4) shown in Figure 2 is obtained.

The cutting thickness can be determined freely, and cutting can be done in a tapered or curved shape.◇ By cutting the obtained plate material (4) into the desired shape, the desired plate material (5) can be obtained. It will be done.

The obtained board material (5) is made of wood pieces (2) and polyurethane (
It exhibits a progressively new appearance by combining with 3), and exhibits even more distinctive decorative properties by coloring the polyurethane.

In addition, the wood piece (2) exhibits a soft texture unique to wood, and is advantageous in reducing the weight of the board. The hardness of polyurethane can be easily selected, so by making it appropriately soft, it can absorb the dimensional changes of the wood piece (2) and prevent the board material (ff) from warping and twisting due to changes in temperature and humidity. Occurrence can be prevented.

In addition, if you arrange a large number of wood pieces (2) with their fiber directions parallel to each other and place them in a resin and cut them across the fiber direction to make a board material, you can create a wood grain that cannot be obtained with ordinary solid wood or plywood. A board with many exposed surfaces can be obtained, allowing the decorative effects of tree rings to be utilized.

Effects of the Invention As is clear from the above, according to the present invention, a board material that has innovative decorative properties by combining polyurethane and wood and exhibits the soft texture of wood can be obtained by placing wood pieces on uncured polyurethane and It is possible to provide a method for manufacturing a plate material that can be obtained by a simple process of cutting after curing. The obtained board materials can be used for table tops, reception room walls,
It can be widely used as flooring material for hallways, etc.

[Brief explanation of the drawing]

The figures show the steps in an embodiment of the present invention. Figure 1 shows a hardened resin block with wood pieces placed in polyurethane. Figure 2 shows the resin block obtained by cutting the resin block shown in Figure 1. Figure 3 is a perspective view of the plate material obtained by cutting the plate material shown in Figure 2. (1) Polyurethane resin lump (2) Wood piece (3) Polyurethane (4) Board material (5) Board material (and above) Agent Patent attorney Eiji Saegusa, 3. ,. Figure 2 4 Figure 3

Claims (1)

[Claims] [1] A method for producing a board material, which comprises placing wood pieces in a pre-cured polyurethane spaced apart from each other, and cutting the wood pieces into plate shapes after the polyurethane is cured.