JPS6083803A - Manufacture of resin impregnated decorative board - 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 This invention consists of: Ij l- Regarding the manufacturing method of resin-impregnated veneer pasted boards in which synthetic resin liquid is impregnated and injected into the roots, the purpose is to prevent color differences and color unevenness of resin-impregnated veneers and to improve the quality of the resin. It is often used to produce resin-impregnated veneer-bonded fat boards.

Conventionally, the manufacturing method of resin-impregnated veneer has improved the material by injecting a synthetic resin liquid into the thin wood veneer and has excellent properties such as 1. water resistance, 1. acid resistance, alkali resistance, and abrasion resistance. It is well known that in thin veneers processed in this way, the spring material of the veneer is often impregnated with synthetic resin liquid, so the wide spring material of the thin veneer becomes 216-diameter ψ1. However, is the thin veneer made from the same wood species? Even if the wood is grown, the density of the tissue in the spring wood and fall wood may be uneven depending on the production area and growth conditions such as perforation, and the transparency may be uneven due to uneven penetration of the synthetic resin liquid. It is extremely difficult to match the colors and patterns of the product, and it is very difficult to match the colors and patterns of the product. It was bad.

Therefore, we have investigated and perfected a method to solve these conventional problems.

That is, in the present invention, after dyeing the thin veneer to a density and color that is almost unaffected by the color of the surface of the plywood to which the thin veneer is attached, a cross-linked synthetic resin liquid is impregnated into the dyed veneer and cured. After that, it is attached to the surface of the base plate using adhesive.
The most distinctive feature of the manufacturing method for resin-impregnated decorative boards with □ν characteristics is that the synthetic resin is dyed to a density and color that is almost unaffected by the color of the plywood surface to which the thin Qi board is attached. The purpose is to impregnate and inject liquid.

The present invention will be described in detail below.

The thin veneer used in the present invention is one with a thickness of about 5 mm or more, and is made of natural single-leaf wood veneer such as cedar, cypress, and pine, hardwood veneer of hardwood such as zelkova, oak, and pine, or artificial heather. Mekakun medium boards are used, and these thin veneers are dyed to a density and color that is almost unaffected by the color of the base plate to which they are attached.

In other words, the extent to which it is hardly affected by the color of the surface of the base plate means, for example, when the plywood is made of plywood, the surface color ranges from white such as white lauan to light 7/j such as Mersawa wood.
Color: The surface of these baseplates has a variety of colors, including pale yellowish brown, reddish white to pink of red meranti and red lauan, and light reddish brown to dark reddish brown of heartwood such as Avitone and Cavour. Even if a translucent resin-impregnated veneer that has been dyed is attached to the surface of the veneer, the color that appears on the surface of the veneer will not be perceived as a large difference in color.

For example, if the surface color of the base plywood is white to light yellow, such as white lauan or Mersawa wood, the thickness should be 0.5 mm.
On a rice pine veneer of about! °After being impregnated under pressure with a dye solution mainly consisting of four color dyes, the veneer is dyed by high temperature curing, and then dried.
Next, the Cji board is impregnated and injected with a transparent resin liquid based on unsaturated polyester resin, and cured by heating and pressing to form a resin-impregnated veneer with a translucent spring part, and then the veneer is painted white. It was attached to the surface of a pale yellow veneer using a urethane resin adhesive, but there was almost no difference in color as a decorative board, and the result was a resin-impregnated decorative board that did not give any discomfort as a whole.

Also, if the surface color of the plywood is pale yellow to pink, the thickness is Q.
After dyeing a rice toga veneer of about 6 mm in a brownish color and drying it, the veneer is impregnated with a transparent resin solution of methyl methacrylate and hardened under pressure, so that the entire veneer becomes a brownish color. A translucent resin-impregnated veneer was obtained. Next, the veneer was attached to the light yellow to pink base plate surface using an acrylic resin adhesive, but there was almost no difference in color as a decorative board, and the resin impregnation did not look strange as a whole. A mesh board was obtained.

In addition, dyes that can be used in the present invention include commonly used direct dyes, oak dyes, and metal-containing dyeing dyes, and crosslinking dyes to be impregnated into the intermediate plate: unsaturated polyester resins as synthetic resins. and methyl methacrylate-1·′η· resin. Impregnation: A synthetic resin adhesive such as urethane, epoxy, or acrylic is used as the adhesive for bonding the Li board and the plywood, and coloring such as titanium is used to increase the hiding performance of the adhesive layer. You may add face nectar 11.

As mentioned above, the resin-impregnated decorative board produced by the method of the present invention is a thin veneer that has been dyed in a highly concentrated tone or color beforehand and then impregnated with resin. Even if there is uneven penetration, the veneer does not become transparent as a whole, so almost no one sticks out.Also, even if the resin-impregnated veneer is glued to the plywood surface, it is not affected by the surface color of the plywood, compared to conventional resin impregnation. process? Unlike decorative boards where Li boards are pasted to baseboards, there is no need to select and use the baseboards, which greatly expands the scope of use of one plywood board, and the graded boards may also have different colors or uneven coloring. This has the advantage of being able to produce products with high yield.

Next, examples of the present invention will be described.

Example A plywood board with a top plate of white to pale yellow white lauan or Mersawa wood was used as the base plate, and the surface was coated with a thickness of 0.8 cm.
When attaching the resin-impregnated rice togari board of mm, the middle board was dried to a nearly dry state, and then dyed with Yel.
Low S 2CI to 0.65 tons, Orang S
RL 0.25i%ii! Add some penetrant to 5 Q m
A dye solution was prepared by dissolving each part Iij in water.
Next, one person put the dye solution into a container that can be pressurized and weighed 15 kg/cm. Pressure was applied for a while. Next, remove the middle plate from the container and
The entire board is wrapped in synthetic resin filter and heated and cured at 80°C for 48 hours to dye the dye molecules into the middle board, and then dried to finish the dyeing of the +'ll board and determine the light value. A colored medium plate was obtained. Then, after injecting transparent unsaturated polyester resin into the intermediate plate under reduced pressure and pressure, the liquid was drained.
A 1'1 resin-impregnated intermediate plate was formed by hot pressing at 0°C and 10 kg/cm' for 5 minutes.

Titanium white is applied to the surface of the base plate as shown in 1.
Although the adhesive was attached using a urethane resin adhesive containing .

Claims (1)

[Claims] 1. After dyeing to a density and color that is almost unaffected by the color of the surface of the base plate to which the thin veneer is attached, inject a crosslinking synthetic resin solution into the dyed medium plate and harden it. A method for producing a resin-impregnated mesh board, which is characterized in that the resin-impregnated mesh board is bonded to the surface of the white board through contact.