JPH07329009A - Decorative panel and production thereof - Google Patents

Abstract

PURPOSE:To enhance productivity and design effect, in a decorative panel obtained by bonding fancy veneer to a base panel, by forming a surface protective layer excellent in strength and abrasion resistance and having sufficient thickness of the surface on fancy veneer by a simple working process. CONSTITUTION:A decorative panel is produced by bonding fancy veneer 3 to the surface of a base panel 1 through an adhesive layer 2 and forming a colored film layer 4 on the surface of the fancy veneer and laminating a heat- fusible transparent synthetic resin sheet to the upper surface of the film layer 4 by self-fusion to form a surface protective layer 5.

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. Is colored, and a surface protective layer formed by self-welding a heat-melting transparent synthetic resin sheet is formed on the upper surface thereof.

The method for manufacturing a decorative board according to the present invention is
A decorative veneer is placed on the surface of the substrate via an adhesive and pressure-bonded, and then colored coating is applied to the surface of the decorative veneer, and then heat-melted on the colored coated surface of the decorative veneer. The transparent synthetic resin sheet is placed on the colored coated surface and is self-welded on the colored coated surface to form a surface protective layer.

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, talc, calcium carbonate, clay, inorganic powder such as titanium white, wheat flour, wood powder, plastic powder, colorant, insect repellent, fungicide, etc. may be added to and mixed with the adhesive. . 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, wrapping, edge pasting machine, vacuum press. The decorative veneer is adhered to the substrate surface by pressing with a sticking device such as.

In this way, a colored coating is applied to the surface of the decorative veneer adhered to the surface of the substrate via the adhesive. Colored coating is generally performed on the surface of the decorative veneer using a sealer coating, sanding, etc., if necessary, and then coated with a colored coating using a coating device, and immediately sponge roll,
It is carried out by smoothing and rubbing the paint using a brush roll, a wool roll or the like. In addition, the excess paint is removed by using a reverse roll if necessary. By applying the colored coating, the color of the surface of the decorative veneer is unified, the wood grain, the conduit groove, etc. are remarkably exposed, and the design is improved.

After the colored coating is applied, an arbitrary pattern such as a wood grain pattern, a conduit groove pattern, an abstract pattern, a mosaic pattern can be printed on the colored coated surface. The print formation of the pattern is performed by using any printing method such as letterpress, intaglio, gravure, gravure offset, silk screen, and transfer.

A heat-melting transparent synthetic resin sheet is placed on the colored coated surface of the decorative veneer attached to the surface of the substrate.
As the transparent synthetic resin sheet, polyethylene sheet, cellophane, acetate sheet, polyvinyl chloride sheet, polypropylene sheet, polystyrene sheet, polyester sheet, nylon sheet, saran sheet, acrylic sheet and the like are preferably used. Moreover, you may use what coat | covered these sheets with the heat adhesive resin. Generally, a transparent synthetic resin sheet is used as having a thickness of 0.005 to 1 mm. The transparent synthetic resin sheet is placed on the colored coated surface of the decorative veneer for each decorative veneer or continuously for a plurality of decorative veneers.

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 colored coating applied to the surface, it is possible to emphasize the wood texture, express a new tree species, or express the depth. The designability as is further improved.

The substrate on which the transparent synthetic resin sheet is placed on the colored coated surface of the decorative veneer is heat-pressed by using a heat-pressing device such as a hot press or a heater roll press to obtain a heat-melting property. The transparent synthetic resin sheet is melted and self-welded to the surface of the decorative veneer to form a surface protective layer. The temperature at which the transparent synthetic resin sheet is self-welded is 140 to 200 ° C. for the polyester sheet, and the cellophane 11 is used.
0-200 ° C, polyvinyl chloride sheet 100-170
C., polystyrene sheet 140 to 180.degree. C., polyester sheet 150 to 220.degree.

The transparent synthetic resin sheet self-welds so as to be partially press-fitted into a recess such as a conduit groove on the surface of the decorative veneer, so that the so-called anchor effect works, and in combination with the welding force, the decorative synthetic resin sheet is firmly bonded. Layered on the board surface.

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

Alternatively, in the decorative board according to the present invention, a heat-melting transparent synthetic resin sheet is placed on the colored coated surface of a decorative veneer whose surface is previously colored and heated and pressed. By melting the transparent synthetic resin sheet, self-welding on the colored coated surface to form a surface protective layer, then,
The decorative veneer can be manufactured by a method characterized in that the decorative veneer is placed on the surface of the substrate via an adhesive and pressure-bonded.

[0023]

The surface protective layer is formed by self-welding a heat-melting transparent synthetic resin sheet onto the colored coated surface of the decorative veneer surface. The surface protective layer corresponds to the thickness of the transparent synthetic resin sheet used and is formed to have a uniform thickness. The color coating applied to the surface of the decorative veneer improves the design.

[0024]

EXAMPLE FIG. 1 schematically shows a decorative plate according to the present invention. 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 is colored. A coating layer 4 is formed, and a surface protective layer 5 formed by laminating a heat-melting transparent synthetic resin sheet by self-welding is further formed on the upper surface thereof.

[0025]

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, by coloring the surface of the decorative veneer, coloring of the material can be unified and wood grain, conduit groove, etc. can be emphasized, and the design can be improved.

[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 colored coating layer 5 surface protection layer

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Claims (7)

[Claims] 1. A decorative veneer is attached to the surface of a substrate via an adhesive, a colored coating is applied to the surface of the veneer, and a heat-melting transparent synthetic resin sheet is further provided on the upper surface of the decorative veneer. A decorative board having a surface protective layer formed by self-welding. 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. A pattern pattern is further printed and formed on the colored coated surface of the decorative veneer, and the surface protective layer is formed on the pattern pattern printed surface.
A decorative plate of any one of 3 to 3. 5. A decorative veneer is placed on the surface of a substrate via an adhesive and pressure-bonded to the surface of the substrate, then colored coating is applied to the surface of the decorative veneer, and then the colored coated surface of the decorative veneer. A transparent synthetic resin sheet having a heat-melting property is placed on the surface of the transparent synthetic resin sheet, and the transparent synthetic resin sheet is melted by heating and pressing, and the surface protective layer is formed by self-welding on the colored coated surface. A method for manufacturing a decorative board characterized by the above. 6. The transparent synthetic resin sheet is melted by placing a heat-melting transparent synthetic resin sheet on the colored coated surface of a decorative veneer whose surface is colored and applying heat and pressure. And then self-welding on the colored coated surface to form a surface protective layer, and then the decorative veneer is placed on the surface of the substrate via an adhesive and pressure-bonded. Manufacturing method. 7. A pattern pattern is formed by printing on a colored coated surface of the decorative veneer, and the surface protective layer is formed on the pattern pattern printed surface. A method for manufacturing a decorative board.