JPH03128202A - Manufacture of building board - Google Patents

Abstract

PURPOSE:To control the expansion and contraction of sliced veneer by base board and consequently obtain building board having high dimensional accuracy by a method wherein the sliced veneer, during the stage of wood flakes of which WPC treatment is carried out, is pasted to the base board and, at the same time, WPC resin is hardened. CONSTITUTION:Wood flakes, which are prepared by chipping natural wood, dyed in the predetermined color and dried, are changed in a vacuum vessel, for example, while being stirred under vacuum, applied with WPC resin solution by spraying and, after being left for 1-2 hours, dried under stirring. By applying adhesive to the WPC-treated wood flakes, and forming them, flitch is produced. Next, by bonding the flitches, which are cut in the predetermined dimensions, together with adhesive and, after that, cutting in the predetermined dimensions, sliced veneer 1 is obtained. After that, by pasting the sliced veneers 1 in the predetermined pitches onto the base board 2 and drying at the predetermined temperature, the WPC resin in the sliced veneers 1 hardens completely, resulting in manufacturing building board A.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a construction board in which a sliced veneer subjected to WPC treatment is adhered to a substrate.

[Conventional technology]

Traditionally, wood flakes are coated with adhesive and molded to form flitches, the flitches are cut to a predetermined size, the flitches are glued together, and then sliced. After applying WPC treatment to this sliced veneer, the board is A construction board is made by pasting it on R.
has been done.

[Problem to be solved by the invention]

However, when WPC processing is applied to sliced veneers, the expansion and contraction of the sliced veneers causes dimensional variations between the WPC-treated sliced veneers, and dimensional accuracy of the sliced veneers is required. When manufacturing architectural boards, there was a problem in that the dimensions of the sliced veneer had to be readjusted. The present invention has been made to solve the above problems, and its purpose is to ensure the dimensional accuracy of sliced veneers and to manufacture architectural boards that require the precision of sliced veneers. The purpose is to provide a method.

[Means to solve the problem]

The method for manufacturing a construction board of the present invention includes applying WP to wood flakes.
C treatment, apply adhesive to the wood flakes, mold them to form flitches, cut the flitches to a predetermined size, glue the flitches together, slice them, and paste the sliced veneer 1 on the substrate 2. This feature is characterized by curing the resin of WPC at the same time as it is applied, and this structure solves the above problems. 1 Effect] WPC treatment is applied at the wood flake stage, and the sliced veneer 1 is pasted 9a on the substrate 2, and the WPC resin is cured, so the expansion and contraction of the sliced veneer 1 is regulated by the substrate 2, and the WPC Variations in the dimensions of the processed sliced veneer 1 can be suppressed, and architectural boards A with high dimensional accuracy of the sliced veneer 1 can be efficiently manufactured. Hereinafter, the present invention will be explained in detail based on the accompanying drawings. Natural wood is cut into pieces, dyed in a predetermined color, and dried to produce wood flakes. For example, WPC% filling is applied to this wood flake.
Put the wood flakes into a vacuum pot and stir under reduced pressure.
A WPC resin solution is applied by spraying, left for 1 to 2 hours, and then dried with stirring to prevent the wood flakes from hardening unevenly. This drying evaporates the solvent and semi-cures the WPC resin. Examples of 0 wpc resin include polyester 0 (fat, acrylic resin, melamine resin, etc.). An adhesive is applied to the WPC-treated wood flakes and molded. The flitch is then cut into a predetermined size, and the flitches are bonded together with an adhesive. This flitch is cut into a predetermined size to obtain a sliced veneer 1 of a constant size. After this, as shown in Figs. 1 and 2, the sliced veneer 1
are pasted on the base@2 at a predetermined pitch and at a predetermined temperature (13
The WPC resin of the sliced veneer 1 is completely cured, and the architectural board A becomes 91! ! be done. This architectural board A is suitably employed as a flooring material, etc.

【Effect of the invention】

In the present invention, the wood flakes are subjected to WPC treatment, the wood flakes are coated with adhesive and molded to form flitches, the flitches are cut into predetermined dimensions, the flitches are glued together, and then sliced. Since this sliced veneer is attached to the substrate and the WPC resin is cured, the expansion and contraction of the sliced veneer is regulated by the substrate, and the WP
It is possible to suppress variations in dimensions of C-treated sliced veneers, and to efficiently manufacture architectural boards with high dimensional accuracy of sliced veneers.

[Brief explanation of the drawing]

1 and 2 are plan views showing a construction board manufactured according to the present invention, where A is a construction board, 1 is a sliced veneer, and 2 is a substrate.

Claims (1)

[Claims] (1) Apply WPC treatment to the wood flakes, apply adhesive to the wood flakes and mold them to form a flitch,
A method for producing a construction board, which comprises cutting a flitch into a predetermined size, gluing the flitches together, slicing the veneer, adhering the sliced veneer to a substrate, and curing a WPC resin.