JPS5854985B2 - Kesyouban - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board in which a decorative layer is formed on the surface of a base material, and particularly to a structure for creating a woody texture.

By forming a decorative layer on the surface of a base material such as inexpensive lauan plywood, decorative boards that have an appearance similar to that of high-quality natural wood are often used. Although this pattern could be created by printing, it was difficult to obtain the unique deep wood texture.

For example, conventionally used decorative sheets were made by printing a wood grain pattern on a colored opaque sheet such as paper or film, and then a resin layer was provided on top of the printed sheet and then glued to the base material. However, these products had a flat appearance and did not have the texture of natural wood.

In the case of natural wood, the wood fibers contain many pores, and light is reflected from inside the wood through the cell membrane, giving rise to a deep wood texture known as the "terry" of the wood, but traditional woodgrain prints do not. There was almost no reflection of light inside, giving it a flat feel.

In addition, in order to improve this, some products have achieved light reflection by kneading a metal layer such as aluminum or metal powder under the woodgrain print layer to provide a layer with a so-called metallic feel, but in this case, However, the feeling obtained was so-called metallic, which was different from the reflected light seen through the pores of natural wood, and different from the appearance and impression of natural wood.

Alternatively, some products obtain reflected light by using a foam sheet instead, but in this case as well, there are drawbacks such as the appearance of natural wood cannot be obtained and the interlaminar fracture strength of the sheet is low. .

Therefore, an object of the present invention is to eliminate all such conventional drawbacks and provide a decorative board that can express a deep wood texture similar to natural wood. It is characterized by using a sheet made of hollow fibers that have a flat cross section and have a flat cross section.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a base material made of lauan plywood, particle board, etc. A sheet 3 is adhered to the surface of the base material using an adhesive resin layer 2, and a transparent resin layer 4 is further provided on the surface of the base material.

Furthermore, if a special wood grain pattern or the like is required, a wood grain printing layer 5 may be provided on the surface of the sheet 3 by gravure printing or the like to print wood grains, annual rings, cross line patterns, etc.

In addition, if you want to finely adjust the color tone, you can apply transparent coloring to the transparent resin layer 4, or add a thin transparent ink layer 6 between the sheet 3 and the wood grain printing layer 5 to improve adhesion. It may be provided and then transparently colored.

Furthermore, a transparent colored material may be used for the sheet 3 itself.

In the present invention, this sheet 3 has a particular feature, and as shown in detail in FIG. 2, a sheet 3 formed using transparent hollow fibers 7 having a flat cross section is used.

In this case, the hollow fibers 7 can be made of hollow fibers made by drawing out viscose, hollow fibers made by drawing out polyester resin, etc., and any material can be selected as long as it has transparency. .

The diameter of the hollow fiber 7 may be approximately equivalent to 1 denier, and preferably the long diameter is 30 to 40 microns.
It is best if the short diameter is several microns.

However, this value needs to be set appropriately depending on the desired wood texture.

Then, using such a hollow fiber 7, it is
The material is cut into lengths about the same size as the fish, dispersed in water, and then sieved with a net to form sheets 3 of about 0.05 to 0.1 mm.

Alternatively, any manufacturing method may be used, such as dispersing them from the air, stacking them by falling, and forming them into the sheet 3 using glue.

At this time, if the hollow fibers 7 are aligned in almost the same direction, the arrangement can be similar to that of the wood fibers of natural wood, but depending on the application, the direction of the hollow fibers 7 may be disturbed. It's okay.

Further, the surface shape of the hollow fiber 7 may be either smooth or uneven, but there is no big difference in the reflective effect between the two.

However, by providing the unevenness, the reflected light becomes dull, which may be inappropriate depending on the type of wood grain pattern.

For example, even natural wood is suitable for resin with relatively little "terry".

In this way, in this decorative board, the sheet 3 is formed using hollow fibers 7 that are transparent and have a flat cross section.
By using this, when it is provided on the surface of the base material 1, as shown in FIG. Because it is flat, the reflection efficiency is higher, and because it is flat, more light reaches deep layers and is reflected there, creating a deep texture that is very similar to natural wood. This made it possible to obtain a wood texture similar to that of natural wood.

As described in detail above, according to the present invention, it is possible to obtain a wood-like decorative board that is extremely similar to natural wood and has a deep texture.

[Brief explanation of the drawing]

FIG. 1 is an exploded cross-sectional view of a decorative board according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of the decorative board. 1...Base material, 2...Resin layer, 3...
...Sheet, 4...Transparent resin layer, 5...
...Resin layer, 6...Transparent ink layer, 7...
...Hollow fiber.

Claims (1)

[Claims] 1. A decorative board characterized in that a transparent sheet made of hollow fibers with a flat cross section is provided on the surface of a substrate, and a transparent resin layer is roughly provided on the surface.