JPH0872202A - Decorative panel and production thereof - Google Patents

Abstract

PURPOSE: To provide a decorative panel of novel constitution excellent in strength and abrasion resistance and capable of developing fine surface design effect by a simple working process. CONSTITUTION: A transparent synthetic resin sheet 3 is laminated and bonded to the surface of a substrate 1 through a transparent adhesive or an adhesive becoming transparent upon curing. A numeral 2 shows a transparent adhesive layer. Further, a transparent synthetic resin film 4 pref. having surface hardness higher than that of the transparent synthetic resin sheet can be formed on the transparent synthetic resin sheet.

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 A decorative plate obtained by subjecting the surface of a substrate to a smooth surface by subjecting it to a smooth surface, followed by undercoating, intermediate coating, pattern pattern printing, and transparent topcoating is known.

Further, a colored opaque synthetic resin sheet is attached to the surface of a substrate through an opaque adhesive to form a decorative board.

In these prior arts, the surface of the substrate is completely covered with a base coat, an intermediate coat, or an opaque adhesive and a colored opaque synthetic resin sheet, thereby
It is intended to standardize the surface design of a decorative board, and by using such a decorative board, a room having a uniform wall surface is constructed, or furniture having uniform side surfaces and doors. Was configured.

[0005]

However, in recent years, the individualization of each person has been remarkable, and the chaotic design has been favored, and the uniformized design of the decorative board according to the prior art has become tired. ing.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the prior art, and more specifically, to make a decorative plate having a subtle change stable by a relatively simple work process. It aims to supply and improve productivity.

The decorative board according to the present invention, which was devised after earnest efforts to achieve such an object, is an adhesive which becomes transparent when cured or cured so as not to cover the surface of the substrate. It is characterized in that a transparent synthetic resin sheet is adhered via.

The method for manufacturing a decorative board according to the present invention is
The method is characterized in that an adhesive that becomes transparent or becomes transparent when cured is applied to the surface of the substrate, and then a transparent synthetic resin sheet is placed and pressure-bonded.

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 substrate is arbitrarily cut, and a skirting board, a rim, a molding, a door, or a window on which the surface and the mouth end are optionally decorated by using a cutting machine such as a router or a cutter for chamfering or chamfering. It can also be used as a base material for face materials, sculpture materials, etc.

If necessary, a transparent sealer coating is applied to the surface of the substrate, and then an adhesive that becomes transparent or becomes transparent when cured is applied using an application device such as a sprayer, a spreader, or a bar coater.

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 or the like. It is used alone or as a mixed type adhesive arbitrarily mixed, or as a modified adhesive. A colorant may be added to this adhesive as needed to use it as a colored adhesive. Since this adhesive itself is transparent or at least becomes transparent when cured, it appears on the surface of the decorative plate without concealing the surface of the substrate in the obtained decorative plate.

A transparent synthetic resin sheet is placed on the adhesive-coated 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. Generally, a transparent synthetic resin sheet is used as having a thickness of 0.005 to 1 mm.

As the transparent synthetic resin sheet, an arbitrarily colored colored transparent synthetic resin sheet can be used. In addition, a colorless or colored transparent synthetic resin sheet with an arbitrary pattern printed on the back side, a laminated decorative transparent synthetic resin sheet having a pattern layer inside, a transparent synthetic resin with a pattern pattern recess formed by embossing on the surface It is possible to use a resin sheet, a transparent synthetic resin sheet in which the pattern concave portion is arbitrarily colored, a transparent synthetic resin sheet which has fine irregularities formed on its surface and is matted. By using these transparent synthetic resin sheets, in addition to the surface design of the substrate itself, arbitrary pattern patterns such as wood grain pattern, stone pattern pattern, abstract pattern and arbitrary color tone can be expressed, and the designability as a decorative board Is improved.

Thus, the substrate on which the transparent synthetic resin sheet is placed via the adhesive which becomes transparent or becomes transparent when cured is pressed by cold press, hot press, roll press, laminator, vacuum press or the like. The transparent synthetic resin sheet is adhered to the substrate surface by pressing with a device.

By performing this pressure bonding using an embossing device having a convex portion on the surface, a concave portion corresponding to the convex portion can be formed by engraving on the surface of the transparent synthetic resin sheet. Further, after forming a concave portion on the surface of the transparent synthetic resin sheet in this way, a colored coating material is applied using a coating device such as a flow coater, a curtain coater, or a roll coater. Use a scraping device such as a reverse coater or sponge roll coater to remove the colored paint applied to the surface portion except the recess, apply the colored coating only inside the recess, and further dry with a drying device. You can

After the transparent synthetic resin sheet is attached to the surface of the substrate, the surface of the transparent synthetic resin sheet is sanded or brushed to form fine irregularities, whereby a matte surface can be obtained.

Further, a transparent synthetic resin coating material is applied onto the transparent synthetic resin sheet attached to the surface of the substrate by using a coating device such as a roll coater, a flow coater, a curtain coater, or a spray, and then dried. It is possible to form a transparent synthetic resin coating film. As the transparent synthetic resin coating, aminoalkyd resin-based, vinyl resin-based, acrylic resin-based, epoxy resin-based, polyurethane resin-based, unsaturated polyester resin-based, isocyanate-based, etc. synthetic resin coatings may be used alone or in a modified form. A resin paint is used, and may be optionally colored if necessary.

The transparent synthetic resin coating material preferably has a surface hardness after curing higher than that of the transparent synthetic resin sheet. Further, in order to improve the surface hardness, inorganic powders such as silicon carbide, aluminum oxide, boron carbide and metal powders can be mixed and used in the paint.

[0019]

By using a transparent synthetic resin sheet and adhering it to the surface of the substrate through an adhesive which becomes transparent when it is transparent or cured, a decorative board excellent in surface strength and abrasion resistance can be obtained. Since the surface of the substrate is exposed on the surface of this decorative plate, the designability with subtle changes is exhibited.

The thickness of the transparent synthetic resin sheet used can be freely selected and has a uniform thickness, and can be easily attached to the substrate surface by a simple operation. In addition, the design of the decorative board is further improved by applying makeup such as coloring and pattern to the transparent synthetic resin sheet.

[0021]

EXAMPLE FIG. 1 schematically shows a decorative plate according to the present invention, in which a transparent synthetic resin sheet 3 is provided on the surface of a substrate 1.
It is laminated and adhered via an adhesive which becomes transparent or becomes transparent when cured. 2 is a transparent adhesive layer. Further, in this embodiment, the transparent synthetic resin coating film 4 is formed on the transparent synthetic resin sheet 3.

[0022]

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 plate by a simple working process. The decorative board obtained by the present invention has excellent strength and abrasion resistance, 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, since grooves are formed in the surface of the surface protective layer and the inside of the grooves is colored and painted, it is also a surface design of the decorative veneer exposed through the transparent surface protective layer. Together, a decorative board with 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 transparent adhesive layer 3 transparent synthetic resin sheet 4 transparent synthetic resin coating film

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Claims (10)

[Claims] 1. A decorative board characterized in that a transparent synthetic resin sheet is adhered to the surface of a substrate through an adhesive that is transparent or becomes transparent when cured so as not to cover the surface. . 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 transparent synthetic resin sheet is a laminated decorative transparent synthetic resin sheet having a patterned layer inside. 5. The decorative board according to claim 1, wherein a patterned recess is formed on the surface of the transparent synthetic resin sheet. 6. The decorative board according to claim 1, wherein fine asperities are formed on the surface of the transparent synthetic resin sheet to form a matte surface. 7. 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. 8. The decorative board according to claim 1, further comprising a transparent synthetic resin coating film formed on the transparent synthetic resin sheet. 9. The decorative board according to claim 8, wherein the transparent synthetic resin coating film has a surface hardness higher than that of the transparent synthetic resin sheet. 10. A method for producing a decorative board, which comprises applying an adhesive that becomes transparent or becomes transparent when cured onto a surface of a substrate, and then placing a transparent synthetic resin sheet and pressure-bonding the sheet.