JPH07329013A - Fancy veneer and production thereof - Google Patents

Abstract

PURPOSE:To form a surface protective layer excellent in strength and abrasion resistance and having sufficient thickness on the surface of fancy veneer by a simple working process and to enhance productivity and design effect. CONSTITUTION:A colored film layer 2 is formed on the surface of fancy veneer 1 and a heat-fusible transparent synthetic resin sheet is laminated to the upper surface of the film layer 2 by self-fusion to form a surface protective layer 3. The transparent synthetic resin sheet is subjected to self-fusion so as to be introduced into the recessed places 4 such as vessel grooves provided to the surface of the fancy veneer under pressure and the recessed places such as the vessel grooves are developed on the surface of the surface protective layer to form the corresponding surface recessed places 5. The surface recessed places can be filled with color paint 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 veneer used as a building material or a plate for furniture in a house and a method for manufacturing the veneer.

[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 veneer by a relatively simple work process. However, the aim is to improve productivity.

The decorative veneer according to the present invention, which has been devised after intensive efforts to achieve the above object, has a colored veneer on the surface of the decorative veneer, and a heat-melting transparent synthetic resin on the upper surface thereof. A surface protective layer is formed by self-welding a sheet, and recesses such as conduit grooves on the surface of the decorative veneer are exposed on the surface of the surface protective layer to form surface recesses. And

Further, in the method for producing a decorative veneer according to the present invention, a colored coating is applied to the surface of the decorative veneer, and then a heat-melting transparent synthetic resin sheet is placed on the colored coated surface of the decorative veneer. The transparent synthetic resin sheet is melted by placing it under heat and pressure, and is self-welded on the colored coated surface to form a surface protective layer. When the transparent synthetic resin sheet is melted In addition, the transparent synthetic resin sheet is press-fitted into a recess such as a conduit groove on the surface of the decorative veneer so that the recess is exposed as a surface recess on the surface of the surface protective layer. And

As the decorative veneer, slice veneer, rotary veneer, half-land veneer, sword veneer, etc. obtained by a cutting and cutting device such as a slicer, a rotary race, a half-land rotary race, a circular saw and a band saw are used. To be The decorative veneer generally has a thickness of 0.15 to 5 mm.

On the back surface of the decorative veneer, Japanese paper, foreign 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.

Color coating is applied to the surface of the decorative veneer. 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 grain pattern, a conduit groove pattern, an abstract pattern or a mosaic pattern can be formed by printing 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-meltable transparent synthetic resin sheet is placed on the colored coated surface of the decorative veneer. 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. This makes it possible to emphasize the wood texture, express a new tree species, or express the depth, in combination with the original surface design of the decorative veneer and the colored coating applied to the surface.

The decorative veneer on which the transparent synthetic resin sheet is placed on the colored coated surface is heat-pressed by using a heat-pressing device such as a hot press or a heater roll press to obtain a heat-melting transparent material. The 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.

As described above, the transparent synthetic resin sheet is as thin as about 0.005 to 1 mm, and more preferably, the thickness is equal to or less than the diameter of the recesses such as the conduit groove, hairline, and wormhole of the decorative veneer. By selecting the one having the above, it is self-welded so as to be partially press-fitted into the recess of the surface of the decorative veneer at the time of heat welding, and the recess has a surface recess formed on the surface. A surface protective layer is formed.
As a result, the so-called anchor effect works, and the surface protection layer is firmly layered on the surface of the decorative veneer in combination with the welding force of the heat-welding transparent synthetic resin sheet itself, and the surface of the surface protection layer is The wood effect of the decorative veneer is emphasized by the shading effect of the surface recess formed on the surface, and the design is improved.

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

Further, after applying the coloring paint to the general surface of the decorative veneer using the above-mentioned coating apparatus, preferably immediately after that, using a reverse roll coater, the surface recess of the surface protective layer is formed. By removing the colored paint applied to the removed surface portion and leaving the colored paint only in the surface recesses, the surface recesses of the surface protective layer can be colored. As a result, the surface recess of the surface protective layer is more emphasized and the designability is further improved.

The decorative veneer of the present invention can be adhered to the surface of the substrate with an adhesive to form a decorative plate.

As the substrate, plywood, wood board, wood fiber board, wood shaving board, laminated wood, single board laminated board, etc. are used alone or as a laminated board which is arbitrarily laminated. 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 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 with the adhesive, a decorative single veneer optionally backed is provided. You may apply an adhesive agent to the back surface of a board. 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 obtained by pressing the decorative veneer on the surface of the substrate using a sticking device such as the above.

[0024]

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.

Since the transparent synthetic resin sheet is press-fitted into a recess such as a conduit groove on the surface of the decorative veneer during self-welding, the surface protective layer is firmly adhered to the surface of the decorative veneer by the anchor effect. A surface recess is formed on the surface of the surface protective layer by exposing a recess such as a conduit groove on the surface of the decorative veneer, and the wood texture is more emphasized.

[0026]

EXAMPLE FIG. 1 schematically shows a decorative veneer according to the present invention, in which a colored coating layer 2 is formed on the surface of a decorative veneer 1, and a heat-melting transparent composite is formed on the upper surface thereof. A surface protective layer 3 is formed by laminating resin sheets by self-welding.

The transparent synthetic resin sheet is self-welded so as to be press-fitted into a recess 4 such as a conduit groove on the surface of the decorative veneer 1. The surface of the surface protective layer 3 has a recess such as the conduit groove. Place 4
Are exposed to form corresponding surface recesses 5. Although not shown in this embodiment, the surface recess 5 can be filled with a coloring paint to be colored.

[0028]

According to the present invention, a surface protective layer having a uniform thickness can be easily formed on the surface of a decorative veneer by a simple working process. The decorative veneer 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.

Furthermore, since the surface protective layer is firmly layered on the surface of the decorative veneer, peeling does not occur, and recesses such as conduit grooves appear on the surface of the decorative veneer. A surface recess is formed, and the wood texture is emphasized. Furthermore, by applying colored coating to the surface of the decorative veneer, it is possible to unify the color of the material and to express wood grain, conduit grooves, etc. in an emphasized manner, and the synergistic effect of these will significantly improve the design. .

[Brief description of drawings]

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

[Explanation of symbols]

 1 Decorative veneer 2 Colored coating layer 3 Surface protective layer 4 Recesses such as conduit grooves 5 Surface recess

Claims (8)

[Claims] 1. A colored veneer is applied to the surface of a decorative veneer,
Further, a surface protective layer formed by self-welding a heat-melting transparent synthetic resin sheet is formed on the upper surface thereof, and recesses such as conduit grooves on the surface of the decorative veneer are exposed on the surface of the surface protective layer. A decorative veneer characterized by forming a surface recess. 2. The decorative veneer according to claim 1, wherein the transparent synthetic resin sheet is a colored transparent synthetic resin sheet which is arbitrarily colored. 3. The decorative veneer 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.
Decorative veneer according to any one of 3 to 3. 5. The decorative veneer according to claim 1, wherein the inside of the surface recess of the surface protective layer is arbitrarily colored. 6. The transparent surface of the decorative veneer is colored, and the transparent synthetic resin sheet having a heat-melting property is placed on the colored surface of the decorative veneer and heat-pressed to make the transparent A synthetic resin sheet is melted and self-welded on the colored coated surface to form a surface protective layer. When the transparent synthetic resin sheet is melted, the transparent synthetic resin sheet is coated with the cosmetic composition. A method for producing a decorative veneer, characterized in that the recess is exposed as a surface recess on the surface of the surface protective layer by being pressed into a recess such as a conduit groove on the surface of the plate. 7. The decorative veneer according to claim 6, wherein a pattern pattern is formed by printing on the colored coated surface of the decorative veneer, and the surface protective layer is formed on the pattern pattern printed surface. Method of manufacturing a plate. 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 veneer according to claim 6 or 7.