JPS5915069B2 - Veneer composite board with uneven pattern and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board having an uneven pattern on the surface of a pseudo precious wood to which a precious wood veneer is attached.

Generally, pseudo-precious wood is manufactured by laminating a veneer obtained by slicing precious wood on the surface of an inexpensive substrate such as veneer plywood, but since veneer easily tears along the wood grain, the surface is not coated with a press etc. It was difficult to form an uneven pattern.

The first object of the present invention is to overcome the above-mentioned drawbacks of the veneer, to prevent the surface veneer from cracking or cracking during uneven molding, and to obtain a product that does not develop cracks even with aging. A second object of the present invention is to provide an inexpensive and efficient method for producing the above-mentioned uneven patterned veneer composite board. The present invention will be explained in detail below with reference to embodiment figures.

FIG. 1 shows the structure of a veneer composite board having an uneven pattern according to the specific invention. 0 A flexible sheet 2 such as paper or a synthetic resin sheet is pasted, and wood chips 3 are laminated on a plywood substrate 6 via a wood chip layer 5 hardened with a binder 4, and an uneven pattern 1 is formed on the surface. This is a veneer composite board made by forming.

According to the above configuration, since the veneer 1 is lined with the flexible sheet 152, it is possible to prevent the veneer from cracking or cracking along the hydraulics, and moreover, the veneer 1 is lined with the flexible sheet 152. Since the wood chip layer 5 is interposed between them, the wood chips 20 and the chip layer 5 have no directionality compared to a structure in which the veneer 1 is directly laminated on a veneer board 6 or a wood board.
This method has the advantage that it can prevent the generation of cracks in the surface veneer due to dry cracks on the surface of the substrate. Furthermore, FIG. 2 shows a method for manufacturing a veneer composite board having the above-mentioned uneven pattern, which is a combined invention, in which an uncured thermosetting resin binder 4' and wood chips 3 are placed on a plywood substrate 6. The kneaded material 5' of the above is placed in a flat plate shape, and the flexible sheet 2 pasted on the veneer 1 is placed on top of the kneaded material 5', and the mixture is heated and pressurized using the uneven mold 8 or the uneven roll. Curing the thermosetting resin binding material 4'30
In addition, an uneven pattern 7 is formed on the surface.

In the figure, 9 is a lower mold, and 10 and 11 are presses. As the thermosetting resin binding material 4', for example, a phenol resin with a hardening agent added is used, and the material 5' is kneaded together with the wood chips 3 in a kneader and placed on a plywood substrate 6 in the form of a flat plate. It is desirable to heat and pressurize after drying to a suitable hardness, and if this is done, the wood chip layer, that is, the kneaded material 5' will show appropriate resistance to the pressure of the uneven mold 8, and the surface will be hardened. The pattern followability of the uneven pattern 7 formed on the veneer 1 can be improved. According to the method of the present invention, as described above, it is possible to form a wood chip layer using the caking material and wood chips, and at the same time form an uneven pattern. Since it can be plastically deformed in accordance with the mold, it is possible to easily form deeply carved uneven patterns, and by adjusting the hardness of the kneaded material, it is possible to achieve the desired depth of unevenness and good mold tracking. It has the advantage of providing sex.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment of a veneer composite plate having an uneven pattern according to the present invention, and FIG. 2 is a cross-sectional view showing an example of the manufacturing method according to the present invention. 1 is a veneer, 2 is a flexible sheet, 3 is a wood chip, 4 is a binding material, l is a thermosetting resin binding material, 5 is a wood chip layer,
5' is a kneaded material, 6 is a veneer substrate, 7 is an uneven pattern, and 8 is an uneven mold.

Claims (1)

[Claims] 1. A flexible sheet such as paper or a synthetic resin sheet is adhered to the lower surface of the veneer, and wood chips are laminated on a veneer substrate via a layer of wood chips hardened with a binder, A veneer composite board with an uneven pattern formed on its surface. 2 A kneaded mixture of uncured thermosetting resin binder and wood chips is placed on a plywood substrate in the form of a flat plate, and a flexible sheet affixed to a veneer is placed on top of it. A method for producing a veneer composite board having an uneven pattern, characterized in that the thermosetting resin binder is cured and an uneven pattern is formed on the surface by applying heat and pressure using an uneven mold or an uneven roll.