JPH07290671A - Decorative plate and manufacture thereof - Google Patents

Abstract

PURPOSE:To improve productivity by forming a surface protective layer having excellent strength and wear resistance and sufficient thickness on a decorative veneer surface by simple operating steps in a decorative plate made by laminating the veneer on a board. CONSTITUTION:A surface protective layer 6 is fonned by laminating a decorative veneer 3 on a surface of a board 1 via an adhesive layer 2, forming a printed part 4 of a woodgrain pattern, etc., on the surface of the veneer 3 and further laminating and adhering a transparent synthetic resin sheet having recesses on a surface on the entire surface of the veneer via transparent adhesive or adhesive which becomes transparent upon curing. Recesses for expressing pseudo-conduit groove, etc., formed by embossing the sheet are exhibited as surface recesses 7 of the layer. Coloring paint is filled in the surface recesses to be colored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative board used as a building material or a board for furniture in a house and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a decorative veneer is pasted on the surface of a substrate with an adhesive, then a colored paint is applied to the surface of the decorative veneer to apply a colored coating, and then a top coat is applied and overcoated. It is widely practiced to apply a paint to form a surface protective layer to form a decorative plate.

[0003]

In the above-mentioned prior art, in order to give the surface protective layer a sufficient function, it is necessary to repeatedly apply the overcoating material and thickly apply it, which complicates the working process.

Further, in the case of attempting to perform thick coating using a paint having a high viscosity, if the coating speed or the drying speed is high, uniform coating cannot be performed, and foaming occurs during drying. Although all of these problems are avoided by slowing down the speed, a decrease in productivity is inevitable.

Under the circumstances as described above, it has been attempted to give up the thick coating of the top coat and form a relatively thin surface protective layer. In this case, the strength of the surface protective layer becomes weak. Therefore, there are problems that the surface is easily scratched, the abrasion resistance is poor, and a deep makeup surface cannot be obtained.

[0006]

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned problems of the prior art, and more specifically, to stably supply a high quality decorative board by a relatively simple working process. , Aim to improve productivity.

The decorative board according to the present invention, which has been devised after earnest efforts to achieve the above object, has a decorative veneer adhered to the surface of the substrate via an adhesive and a surface of the decorative veneer. A pattern pattern is printed on the surface of the decorative veneer, and a transparent synthetic resin sheet having a recess on the surface is adhered to the entire surface of the decorative veneer with an adhesive that becomes transparent or transparent when cured to form a recess on the surface. It is characterized in that a surface protective layer having is formed.

The method for manufacturing a decorative board according to the present invention is
After placing the decorative veneer on the surface of the substrate via an adhesive and press-bonding, a pattern is printed on the surface of the decorative veneer, and then the entire surface of the decorative veneer is transparent or transparent. A transparent synthetic resin sheet having a recess on the surface is placed through an adhesive that becomes transparent when cured and pressure-bonded to form a surface protective layer having a surface recess made of the transparent synthetic resin sheet. It is characterized by doing.

As the substrate, plywood, wood board, wood fiber board, wood shaving board, laminated wood, veneer laminated board, etc. are used alone or as a laminated board formed by arbitrarily laminating. In addition, the board is cut arbitrarily, and a skirting board, a rim, a molding, a door, a window on which the surface and the mouth end are optionally decorated by grooving or chamfering using a cutting machine such as a router or a cutter. It can also be used as a base material for face materials, sculpture materials, etc.

The adhesive is applied to the surface of the substrate by using a coating device such as a sprayer, a spreader or a bar coater. As this adhesive, a vinyl acetate resin-based, urea resin-based, melamine resin-based, phenol resin-based, isocyanate-based adhesive or the like is used alone or as a mixed adhesive. If necessary, the adhesive may include a coloring agent,
Insect repellents, fungicides and the like can be added and mixed for use. In general, the adhesive has a solid content of 35 to 80% and is applied to the surface of the substrate at a coating amount of 50 to 300 g / m ² .

A decorative veneer is placed on the surface of the substrate coated with the adhesive. As the decorative veneer, a slice veneer, a rotary veneer, a half-land veneer, a sword veneer, or the like obtained by a cutting and cutting device such as a slicer, a rotary race, a half-land rotary race, a circular saw or a band saw is used. The decorative veneer generally has a thickness of 0.15 to 5 mm.

On the back surface of the decorative veneer, Japanese paper, Western paper, synthetic paper,
A backing material such as a non-woven fabric, a woven fabric, a gauze cloth, an impregnated paper, a synthetic resin sheet or the like may be stuck and used. By sticking the backing material, the decorative veneer itself can be reinforced, the decorative veneer can be prevented from cracking, and the adhesive can be prevented from seeping out to the surface of the decorative veneer. At the same time, the ease of handling can prevent cracks and improve productivity. The backing material may be applied to each leaf of the decorative veneer or may be continuously applied to a plurality of decorative veneers.

According to the present invention, a decorative veneer is adhered to the surface of a substrate via an adhesive. Instead of applying the adhesive to the surface of the substrate as described above, or together therewith,
An adhesive may be applied to the back surface of the optionally lined decorative veneer. The decorative veneer may be attached to each substrate, or may be continuously attached to a plurality of substrates.

Thus, the substrate on which the decorative veneer is placed on each leaf or continuously through the adhesive is cold-pressed, hot-pressed, roll-pressed, laminator-lapping, edging machine, vacuum-pressed. The decorative veneer is adhered to the substrate surface by pressing with a sticking device such as.

In this way, the surface of the decorative veneer adhered to the surface of the substrate through the adhesive is provided with a wood pattern, a conduit groove pattern,
By designing an arbitrary pattern such as an abstract pattern or a mosaic pattern by printing, the design can be improved. The pattern may be formed by printing directly on the surface of the decorative veneer, or may be formed by subjecting it to a base treatment such as coloring coating or sealer coating, if necessary. The print formation of the pattern is performed by using any printing method such as letterpress, intaglio, gravure, gravure offset, silk screen, and transfer.

It is also possible to print and form an arbitrary pattern pattern on the surface of the decorative veneer in advance as described above, and then to attach it to the surface of the substrate via an adhesive.

An adhesive that is transparent or becomes transparent when cured is sprayed, spreader, flow coater, curtain coater, or bar on the entire surface of the decorative veneer that is attached to the surface of the substrate and has an arbitrary pattern printed on it. After coating using a coating device such as a coater, a transparent synthetic resin sheet having a recess on the surface is placed. The transparent synthetic resin sheet is placed on the upper surface of the decorative veneer for each decorative veneer or continuously over a plurality of decorative veneers.

The transparent or transparent adhesive used at this time is a vinyl acetate resin-based, urea resin-based, melamine resin-based, phenol resin-based, acrylic resin-based, urethane resin-based, isocyanate-based adhesive, etc. It is used alone or as a mixed adhesive which is arbitrarily mixed. A colorant may be added to this adhesive as needed to use it as a colored adhesive. The adhesive itself is transparent, or at least becomes transparent when cured, and therefore, in the obtained decorative board, the surface of the decorative veneer is not concealed and appears on the surface of the decorative board.

As the transparent synthetic resin sheet, polyethylene sheet, cellophane, acetate sheet, polyvinyl chloride sheet, polypropylene sheet, polystyrene sheet, polyester sheet, nylon sheet, saran sheet, etc. are preferably used. Generally, a transparent synthetic resin sheet is used as having a thickness of 0.005 to 1 mm.

The transparent synthetic resin sheet used in the present invention has a recess on its surface. By embossing the above-mentioned sheet material with an embossing board, an embossing roll, a wire brush, a sander, etc. ,
A recess is formed in the surface. The recess on the surface of the transparent synthetic resin sheet is a pseudo representation of a recess such as a conduit groove, a hairline, and a wormhole in a natural wood material, and the wood effect is emphasized by the shadow effect of the recess.

Further, when the transparent synthetic resin sheet is attached to the surface of the decorative veneer, since an adhesive which is transparent or becomes transparent when cured is used, the recess such as the conduit groove on the surface of the decorative veneer is transparent. Since it is exposed from the surface of the decorative veneer through the layer, the recesses of the decorative veneer itself and the recesses formed on the surface of the transparent synthetic resin sheet are combined to form a very characteristic It is possible to exhibit excellent design characteristics.

As the transparent synthetic resin sheet, an arbitrarily colored colored transparent synthetic resin sheet can be used. Alternatively, a colorless or colored transparent synthetic resin sheet having an arbitrary pattern printed on the back surface may be used. With this, in combination with the original surface design of the decorative veneer and the pattern pattern printed and formed on the surface, it is possible to emphasize the wood texture, express a new tree species, or express the depth. The designability as a plate is further improved.

A substrate on which a transparent synthetic resin sheet is placed through an adhesive that becomes transparent or becomes transparent when cured on the entire surface of a decorative veneer is cold pressed, hot pressed, roll pressed, laminator, wrapping, edge pasting machine. By pressing using a pressing device such as a vacuum press, the transparent synthetic resin sheet is bonded to the surface of the decorative veneer to form a surface protective layer.

The decorative board of the present invention is obtained as described above.

Further, after the colored paint is applied to the whole surface of this decorative plate by using the above-mentioned coating apparatus, preferably immediately after that, using a reverse roll coater, the surface of the surface protective layer excluding the recess is removed. By removing the colored paint applied to the part and leaving the colored paint only in the recesses, the inside of the recesses of the surface protection layer can be colored. As a result, the recesses in the surface protective layer are more emphasized and the design is improved.

Alternatively, the decorative board according to the present invention can be formed on the entire surface of a decorative veneer on which an arbitrary pattern is preliminarily printed.
A transparent synthetic resin sheet having a recess on the surface is placed through an adhesive that is transparent or transparent when cured, and pressure-bonded to form a surface protective layer having a surface recess made of the transparent synthetic resin sheet. It can be manufactured by a method characterized in that it is formed, and then the decorative veneer is placed on the surface of the substrate via an adhesive and pressure-bonded.

In this method, after the surface protective layer is formed on the surface of the decorative veneer or after the decorative veneer is further laminated on the surface of the substrate to form a decorative plate, the surface protective layer is formed as described above. Only the inside of the recess can be colored and painted.

[0028]

The surface protective layer is formed by using a transparent synthetic resin sheet and adhering it to the surface of the decorative veneer through an adhesive which becomes transparent when it is transparent or cured. The surface protection layer corresponds to the thickness of the transparent synthetic resin sheet used,
Moreover, it is formed to have a uniform thickness.

Since a recess is formed on the surface of the transparent synthetic resin sheet by embossing and the recess is exposed on the surface of the surface protective layer in the decorative board, the wood texture is emphasized.

[0030]

1 is a schematic view of a decorative board according to the present invention, in which a decorative veneer 3 is laminated on a surface of a substrate 1 with an adhesive layer 2 interposed therebetween, and the surface of the decorative veneer 3 has a wood grain. A pattern-printed portion 4 is formed, and a transparent synthetic resin sheet having a recess on the surface is laminated and adhered on the upper surface of the printed portion 4 via an adhesive that becomes transparent or transparent when cured to form a surface protective layer 6. is doing. 5 is a transparent adhesive layer, and 8 is a recess such as a conduit groove on the surface of the decorative veneer 3. The recesses formed in the transparent synthetic resin sheet by embossing or the like and expressing the pseudo conduit grooves or the like are exposed as the surface recesses 7 of the surface protective layer 6.
Although not shown in this embodiment, the surface recess 7
It can be colored by filling it with a colored paint.

[0031]

According to the present invention, a surface protective layer having a uniform thickness can be easily formed on the surface of a decorative veneer in a decorative board by a simple working process. The decorative board obtained by the present invention has excellent strength, abrasion resistance and design, and is suitably used for building materials and furniture.

The thickness of the surface protective layer can be adjusted by changing the thickness of the transparent synthetic resin sheet used. In this case, the manufacturing equipment does not need any change.

Further, the surface protection layer has surface recesses that simulate the conduit grooves and the like, so that the texture of wood can be emphasized. Further, in combination with an arbitrary pattern pattern formed by printing on the surface of the decorative veneer, a decorative plate having extremely excellent design is provided.

[Brief description of drawings]

FIG. 1 is a sectional view schematically showing a decorative board according to the present invention.

[Explanation of symbols]

 1 Substrate 2 Adhesive Layer 3 Decorative Veneer 4 Printed Part 5 Transparent Adhesive Layer 6 Surface Protective Layer 7 Surface Recess

Claims (8)

[Claims] 1. A decorative veneer is attached to the surface of a substrate via an adhesive, and a pattern is printed on the surface of the decorative veneer, and the entire surface of the decorative veneer is transparent or transparent. A decorative board, characterized in that a transparent synthetic resin sheet having a recess on the surface is adhered via an adhesive that becomes transparent when cured, and a surface protective layer having a recess on the surface is formed. 2. The decorative board according to claim 1, wherein the transparent synthetic resin sheet is a colored transparent synthetic resin sheet which is arbitrarily colored. 3. The decorative board according to claim 1, wherein a pattern pattern is printed on the back surface of the transparent synthetic resin sheet. 4. The decorative board according to claim 1, wherein the adhesive that is transparent or becomes transparent when cured is a colored adhesive that is arbitrarily colored. 5. The decorative plate according to claim 1, wherein a surface recess of the surface protective layer is optionally attached. 6. A decorative veneer is placed on the surface of a substrate via an adhesive and pressure-bonded, and then a pattern is printed on the surface of the decorative veneer, and then the surface of the decorative veneer. Generally, a transparent synthetic resin sheet having a recess on the surface is placed through an adhesive that is transparent or becomes transparent when cured, and pressure-bonded to form a transparent surface having the transparent synthetic resin sheet. A method for producing a decorative board, which comprises forming a surface protective layer. 7. A transparent synthetic resin sheet having a recess on the surface is placed on the entire surface of a decorative veneer on which a pattern pattern is formed by printing, through an adhesive that is transparent or transparent when cured. By pressure bonding, a surface protective layer having a surface recess made of the transparent synthetic resin sheet is formed, and then the decorative veneer is placed on the surface of the substrate with an adhesive and pressure bonding. A method of manufacturing a decorative board, which is characterized by the above. 8. After applying a color paint to the surface of the surface protective layer, the color paint applied to the surface portion excluding the surface recess is removed to leave the color paint in the surface recess. The method for manufacturing a decorative board according to claim 6 or 7, which is characterized by the following.