JPS604777B2 - Manufacturing method of uneven decorative board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a textured decorative board, and its purpose is to provide a textured decorative board that has excellent embossing properties and hardly causes adhesive to bleed onto the surface of the patterned paper. The purpose of the present invention is to provide a widely used manufacturing method for easily obtaining the following, thereby contributing to the development of this field.

Conventionally, in order to obtain this type of textured decorative board, the ability to provide embossing was improved by increasing the amount of adhesive used to bond the plywood and patterned paper.

However, in the uneven decorative board obtained by the above-mentioned conventional manufacturing method, the adhesive tends to be in an undried state, which causes the adhesive to bleed onto the surface of the patterned paper, resulting in an unsightly appearance. It had

The present invention has been made for the purpose of eliminating all of the drawbacks of the conventional manufacturing method described above.

Hereinafter, the present invention will be explained in detail based on drawings of embodiments.

The present invention adds 1 part to 1 part of a blowing agent such as diazoaminobenzene, azoisobutyrodinitrile, benzenesulfohydrazine, etc. to phenol, urea melamine, polyurethane, vinyl chloride, polyethylene resin, etc. on the surface of plywood 1, A foaming resin with a solid content of 60% to 80% is applied by mixing fillers such as powder, clay, calcium carbonate, and gypsum, and the foaming ratio is 1.2 to 1. A cushion layer 2 is formed by foaming and curing, and a pattern paper 4 such as titanium paper or tissue paper is laminated on the cushion layer 2 via a thin adhesive layer 3. The unevenness obtained by simultaneously applying embossing to layer 2 and then applying a paint such as urethane, amino alkyd, acrylic, polyester resin, etc. to the surface of patterned paper 4 to which embossing has been applied to form a surface coating layer 6. It is a decorative board.
Note that 5 in the figure is printing ink that gives patterns to the patterned paper 4. In addition, in the present invention, the effect of the cushion layer 2 depends on the wall thickness and foaming ratio, and the amount of filler is 60%.
% or less, the effect can be obtained even if it is not applied even if it is 3,270 to 5,450 yen/mm, the emboss is likely to return due to heat or pressure.

On the other hand, if the amount of filler exceeds 80%, the adhesive force with the plywood 1 and the interlayer adhesive force of the cushion layer 2 itself will become weaker, and the heat returned by the embossing roll will be less and it will be difficult to apply it to the embossing. The filler content must be between 60% and 80%.Furthermore, if the foaming ratio exceeds 1 ping, the embossing may return after embossing.
The emboss may collapse during roll pressing.

Moreover, if it is less than 1.2 times, it becomes harder than plywood and it becomes impossible to provide embossing, so it is necessary to have a foaming ratio of 1.2 times to 1M sound. In addition, in the present invention, the cushion layer 2 acts as a filler or a plywood surface hiding film, and the cushion layer 2 itself is also embossed, so the adhesive layer to be interposed when pasting the pattern paper 4 is 3 may be a very small amount of thin material, and as a result, the seepage of the adhesive onto the surface of the patterned paper 4 is almost prevented, and the appearance of the adhesive can be maintained.

The amount of adhesive applied can be reduced from the conventional 76 to 109 coats per coat to a small amount of 33 to 55 coats per coat with the present invention.
Hereinafter, the effects of the present invention will be made clearer based on specific examples.

Example: A foamed resin prepared by mixing 10 parts of vinyl chloride resin with a solid content of 45%, 10 parts of soybean powder, and 3 parts of diazoaminobenzene was coated on a plywood surface for 76 minutes by roll coating.
A vinyl acetate adhesive was applied for 55 minutes per coat, and after semi-drying, a patterned paper with a striped pattern printed on 32-th grade titanium paper was pasted onto the film.

Then, an embossing pattern was applied using an emboss roll heated to 160 qo, and 55 coats of amino alkyd resin paint was applied using a roll coater, followed by drying. This decorative plywood completely hides the defects of the plywood and can be expressed extremely sharply even with the grain embossing that runs directly to the grain of the plywood.
It was an IQ salmon board with a rich three-dimensional feel. The present invention is constructed as described above, and according to the present invention, sharp embossing can be provided, the adhesive does not seep onto the surface of the patterned paper, and the plywood surface is completely hidden, resulting in a beautiful appearance. It is possible to obtain a decorative board with an uneven appearance.

[Brief explanation of the drawing]

FIG. 2 is a cross-sectional view of the uneven decorative board according to the present invention. 1...Plywood, 2...Cushion layer, 3...
...adhesive layer, 4..."/gturn paper, 5...printing ink, 6...surface coating layer.

Claims (1)

[Claims] 1. A cushion layer is formed by coating the plywood surface with a foamable resin mixed with 60% to 80% filler and curing the foam at a foaming ratio of 1.2 to 10 times, and then attaching a thin adhesive to the cushion layer. A method for producing a textured decorative board, which comprises laminating pattern paper through layers, applying embossing to the laminated paper and the cushion layer at the same time, and then forming a surface coating layer.