JPS6018342A - Manufacture of 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 [Technical Field] The present invention relates to a method for producing a decorative plate mainly used as an interior decoration material.

[Background technology]

Decorative veneers made of coniferous wood or the like are adhered to a base material as interior decoration materials. In such a decorative board, since the ground color of the base material stands out, the spring material portions tend to become unclear. For this reason, there was a problem in that the difference in grain between the spring wood part and the summer wood part was not clear, and it was difficult to obtain a good grain.

[Purpose of the invention]

This invention was made in view of such circumstances, and an object thereof is to clarify the wood grain of a decorative board.

[Disclosure of the invention]

The inventor made extensive studies to achieve the above object. As a result, this invention was completed.

In obtaining a decorative veneer by pasting a decorative veneer onto a base material through an adhesive layer, this invention applies an uneven finish to the adhesive side of the wooden veneer, and also applies a masking agent to the adhesive. The first summary represents a method for manufacturing a decorative board characterized by containing
When obtaining a decorative veneer by pasting a decorative veneer onto a base material via an adhesive layer, the method is characterized in that an adhesive containing wood powder is applied to the surface of the obtained decorative veneer in a wood grain pattern. fM of decorative board
The law is the second main point. This will be explained in detail below.

The invention of vJl is a coniferous veneer with low lace, etc.
Alternatively, when the sliced veneer obtained by slicing the laminated flitch obtained by laminating and pressing the veneer is attached to the base material via an adhesive layer to obtain a decorative veneer, the adhesive of the veneer is It is characterized in that the surface to be worn is textured and the adhesive used contains a concealing agent. The term "obscuring agent" as used in the present invention refers to an agent that has a very high refractive index and has the effect of blocking the ground color of the base material without making it stand out on the surface of the reprint.

As the hiding agent, for example, titanium white is preferably used.

As a specific procedure of the first invention, a pair of single-sided roll presses, one of which is a flat roll of high hardness and the other of which is a flat roll of low hardness, are applied to a softwood veneer obtained by, for example, rolling lace. Use to perform uneven processing. Next, an adhesive containing a masking agent is applied to the textured surface and then attached to the base material. If the above-mentioned unevenness processing is performed, the thickness of the adhesive layer increases in the recessed portions, so that the masking agent becomes more effective. Therefore, in the resulting decorative board, the base color of the base material is almost completely blocked by the hiding agent in the recessed portions, so the wood grain stands out and expresses an excellent heathered pattern. In this way, the blocking effect is different between the four parts and the convex part, and shows a favorable change.

As another specific example of the first invention, for example, a sliced veneer obtained by slicing an assembled flitch obtained by laminating and pressing veneers, a planar roll with one side having high hardness, The roughening process is performed using a pair of single-sided roll presses, the other of which is an embossed roll with high hardness. After this, an adhesive containing a concealing agent is applied to the textured surface and attached to the base material in the same manner as described above. In this case as well, the thickness of the adhesive layer differs depending on the embossed irregularities. Therefore, in the obtained decorative board, the degree of blocking of the ground color of the base material changes due to changes in the thickness of the hiding agent, and the wood grain that stands out also changes in various ways. As a result, a variety of heathered patterns can be arbitrarily expressed.

In the second invention, when obtaining a decorative veneer by pasting a decorative veneer onto a base material via an adhesive layer, on the surface of the obtained decorative plate,
By applying wood powder-containing adhesive in a woodgrain pattern, a decorative board can be obtained that can clearly express a woodgrain pattern with an uneven three-dimensional effect similar to that of a float.

FIG. 1 is a perspective view of an embodiment of a decorative board obtained according to the second invention. The decorative board 1 shown in Fig. 1 is
Lauan plywood, verticle board.

Wood veneer 3 is placed on base material 2 made of calcium silicate plate, etc.
is pasted. A synthetic resin adhesive 4 containing wood powder of the same species as the wood veneer is used on the wood veneer 3 and is spread and adhered to the wood veneer 3 in an arbitrary wood grain pattern. Urea resin is used as a synthetic resin adhesive.

Vinyl acetate resin or the like is preferably used.

As a result, it is possible to impart a wood grain pattern with a three-dimensional unevenness to the decorative board. This wood grain pattern uses wood powder from the same species as the wood veneer, giving it an excellent natural feel.

Examples will be described below.

[Example 1] A 0.4 fl thick Japanese pine veneer was compressed using a pair of single-sided roll presses, one consisting of a flat metal roll and the other a flat rubber roll with a hardness of 20°, to give it an uneven finish. On the uneven surface side, urea adhesive group 1 to which 3 parts of titanium white and 1 part of colored pigment (brown) was added was applied.

Add this to 4 sheets of lauan with a thickness of 12 pieces prepared separately.
Heat and pressure bonding was carried out under the conditions of 0° C. and 70 seconds.

In the obtained decorative board, the ground color of the base material was blocked by the masking agent, the wood grain stood out, and an excellent heathered pattern was expressed.

[Example 2] A pair of pieces of cod agathis veneer with a thickness of 0.5, one of which is a flat metal roll and the other of which is an embossed modern roll.
After compressing with no-Leprene to give an uneven finish, the vinyl acetate/urea resin adhesive part 1 to which titanium white 3-9 colored pigment (brown) 1eI) was added was applied to the uneven surface side. Place this on a separately prepared 15-inch thick board.
Heat and pressure was applied at 20°C for 70 seconds.

In the resulting decorative plate, the ground color of the base material was blocked by the hiding agent, and a varied heathered pattern was expressed.

[Example 3] Agathis veneer with a thickness of 0-5 am was adhered to a particle board with a thickness of 15 fins via a vinyl acetate/urea resin adhesive, and the agathis veneer was placed on the decorative board thus formed. A vinyl acetate resin adhesive containing wood powder was applied in a wood grain pattern and dried by heating.

The obtained decorative board had a three-dimensional texture with uneven wood grain. What's more, because it uses wood flour from the same species as the veneer, it has a natural-looking heathered pattern.

〔Effect of the invention〕

According to the invention of @l, the surface of the wood veneer to which it is attached is textured, and an adhesive containing a concealing agent is applied to the surface of the texture to attach it to the base material. The background color is blocked by the hiding agent contained in the adhesive layer. For this reason, @l
The decorative board obtained by the invention can express an excellent heathered pattern with a natural feel or a varied wood grain that stands out.

In the invention of the foil 2 according to the present invention, an adhesive containing wood flour of the same tree species as the board is applied on the surface of the decorative board in a wood grain pattern, so that the resulting decorative board is processed by brushing etc. as in the past. Compared to the method of expressing wood grain pattern by
A wood grain pattern with a three-dimensional unevenness can be clearly expressed. Moreover, since the wood flour used is from the same tree species as the veneer, it is possible to create a three-dimensional wood grain pattern with an excellent natural feel.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an example of a decorative board obtained by the invention of Fig. 2. l... Decorative board 2... Base material 3... Wood veneer 4.
...Synthetic resin adhesive containing wood powder Patent attorney Takehiko Matsumoto

Claims (3)

[Claims] (1) To obtain a decorative veneer made by pasting a decorative veneer on a base material through an adhesive layer, the surface to which the wood veneer is attached is textured and a masking agent is added to the adhesive. A method for producing a decorative plate, which is characterized by containing. (2) The method for producing a decorative board according to claim 1, wherein the hiding agent is titanium white. (3) When obtaining a decorative veneer made by pasting a decorative veneer onto a base material via an adhesive layer, apply an adhesive containing wood powder to the surface of the obtained decorative veneer in a wood grain pattern. A method of manufacturing decorative boards with nine characteristics.