JPH03218801A - Decorative laminated sheet and its manufacture - Google Patents

Abstract

PURPOSE:To make the whole of a wood grain pattern stereoscopic and provide the wood grain pattern of natural taste by providing a substrate color coating material layer in a manner of permeating into recessed sections of said wood skin pattern on the surface of a base and also providing a wood pattern prinated layer on the surface of the substrate color coating material layer through a transparent coated layer. CONSTITUTION:The surface of a base is sanded to remove fuzzes and stains and smoothening a substrate. When wood skin patterns such as vessels and the like are comparatively little or not on the surface of the base, the wood skin patterns such as vessels and the like are embossed on said surface by an embossing roll or the like. A color coating material for the substrate color of wood grain pattern processed later is applied onto the surface of the base. After the substrate color coating material is dried, a transparent sanding sealer is applied as a covering material for a substrate coloring agent. A transparent sanding sealer fit for the bonding properties or the like with the sanding sealer for covering the coloring agent is applied thereon to prepare a transparent coating material layer. After being dried, sanding or wet grinding is applied to finish the surface smoother. Further, wood grain pattern printing is applied on the transparent coating material layer, and a transparent or a translucent coating material is applied lastly to manufacture a decorative laminated sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a decorative board for use in architecture and furniture manufacturing, particularly a decorative board having concave portions with wood grain patterns such as conduit holes, and a method for manufacturing the same.

(Prior art) Conventionally, decorative boards having concave portions with wood grain patterns such as conduit holes have been manufactured using concave portions formed by conduit holes in a veneer made by affixing sliced veneers of natural wood to the surface of a substrate such as plywood. K is fully filled with colored paint, the surface of the board is embossed with recesses with a wood grain pattern, and the recesses are filled with colored paint, and K is decorative paper with a wood grain pattern printed on the surface of the board. There is one in which a layer is pasted, embossed to match the conduit holes of the printed wood grain pattern, and colored paint is filled into the recesses.

However, in either case, only the wood grain pattern such as the conduit hole is emphasized, and the wood grain pattern as a whole lacks a natural appearance.

(Problems to be Solved by the Invention) An object of the present invention is to eliminate the drawback that the wood grain pattern as a whole lacks a natural look in conventional products.

(Means for Solving the Problems) The present invention provides a base colored paint layer on the surface of a substrate having a wood pattern such as a conduit hole as a recess so as to penetrate into the recess of the wood pattern. The purpose of the present invention is to provide a decorative board that can unify the color tone of the wood and emphasize the wood texture pattern caused by the conduit holes etc. by using the colored paint that has penetrated into the concave parts such as the conduit holes.

Furthermore, by providing a transparent paint layer on the upper surface of the base colored paint layer, the present invention provides a decorative board that can suppress peeling of the base colored paint layer and also allow the entire wood texture pattern formed by conduit holes to stand out to give a three-dimensional effect. It provides:

Furthermore, in the present invention, by providing a wood grain pattern printing layer on the top surface of the transparent paint layer, it is possible to have a wood grain pattern below and above the transparent paint layer, so that the entire wood grain pattern is formed. The present invention provides a decorative board that is extremely three-dimensional and provides a natural-looking wood grain pattern.

That is, the present invention provides a substrate having a wood grain pattern such as a conduit hole as a concave portion, and provides a base colored paint layer on the surface of the substrate so as to penetrate into the concave portion of the wood grain pattern, and the surface of the base colored paint layer. The gist of the present invention is a structure of a decorative board characterized by providing a woodgrain pattern printing layer through a transparent paint layer. Alternatively, a hardwood layer that clearly exists as a hardwood material layer is provided, or a wood pattern such as a conduit hole is formed as a recess by embossing on the surface of the board, and a colored base is applied to the surface of the board so as to penetrate into the recess of the wood pattern. The gist of this is a method for manufacturing a decorative board, which is characterized by applying paint and drying, then applying a transparent sanding sealer, drying, smoothing the surface, and printing a wood grain pattern. It is.

(Function) The substrate used in the present invention is mainly a wooden board, but is not particularly limited to these. As for the wood board, there are two ways to use hardwood such as lauan, which has clear concave pores and medullary rays, and to use softwood such as agathis (Southern cedar), which has relatively few duct holes and medullary rays. There are cases where it is used.

First, sand the surface of the board to remove fluff and dirt and adjust the base. For sanding, use sandpaper with as fine particles as possible, for example, about 150 to 300 grit.

Among substrates that have been ground-conditioned, those made of hardwood or other materials that clearly have concave patterns such as conduit holes should be used. If the surface of the wood is small or has no visible roughness, a wood grain pattern such as a conduit hole is embossed on the surface using an embossing roller.

Next, in order to match the color tone of the substrate surface and to emphasize concave areas that form wood grain patterns such as conduit holes or embossed wood grain patterns, a roll coater is used to apply colored paint in the base color of the wood grain pattern that will be applied later. Apply to the substrate surface using a reverse coater, etc. The base coloring paint to be used can be selected appropriately from the coloring paints generally used for wood, plywood, etc., but it is preferable to select one that has good adhesion with the sealer that will be applied afterwards. Yes.

In addition, it is preferable to use this base coloring paint by diluting it by mixing a solvent in a ratio of about 1 to 7 parts of the coloring paint in order to facilitate penetration into the recesses formed as a wood texture pattern. . Further, the application of the base coloring paint can be repeated several times if necessary.

After the base colored paint has dried, a transparent sanding roller is applied to its surface i/1 using a roll coater or the like to hold down the base colored paint. The coating amount of this transparent paint may be about 10 to 121 parts per square meter.

Next, among the sanding sealers made of polyester resins, urethane resins, aminoalkynode resins, etc., use a transparent sanding sealer F that has good adhesion with the sanding sealer used to hold the colorant, roll coater, and reverse coater. 7 Use a low coater, etc. to remove square meters.
Apply at 0 to 100 F to form a transparent paint layer.

After drying, the surface is either sanded normally with 400 grit sandpaper or wet sanded to make the entire surface smooth.

Furthermore, on top of the transparent paint layer with a smooth surface finish, one-color to multi-color woodgrain patterns are printed using a conventional method using a gravure offset printing machine, and finally a transparent or semi-transparent paint is applied (Tonop Coat). By doing so, the decorative board of the present invention is obtained.

(Example 1) The surface of 2.5% thick lauan plywood was sanded with No. 240 sandpaper to adjust the surface.

Also, wood pigment coloring agent (Nuxtin PG.Washin Chemical) white 78% by weight, brown 8% by weight, yellow
The color is adjusted at a ratio of 13% by weight and 1% by weight of red. The toned coloring agent is diluted at a ratio of 7 parts to 5 parts to prepare the base color of the wood.

This adjusted base coloring paint was applied to the surface of the base-adjusted lauan plywood using a roll coater equipped with a sponge roll, and was applied to the surface of the base-adjusted lauan plywood by pressing it into concavities such as conduit holes and allowing it to penetrate for 20 minutes.
Paint the entire surface with a coating amount of f/m2. Repeat this twice to dry.

In order to suppress the colored paint on the painted surface, apply a transparent urethane sanding sealer (Nurer ss weight i%, thinner 15 weight fL%) at 10 ta/m2 using a roll coater and dry.

90 g'/m2 of transparent urethane sanding 7-La (85% by weight Nura, 15% by weight thinner) was applied using a reverse coater and dried to form a thick transparent paint layer on the entire surface.

The surface of the transparent paint layer is wet-sanded (polished) with No. 400 sandpaper using a wet sander (wet final sander) to prepare the surface for the subsequent wood grain pattern printing.

Further, an oak grain pattern was printed in two colors using an oil-based ink commonly used with a gravure offset printing machine.

(Example 2) The surface of Agatis plywood with a thickness of 3.6 1A was sanded with No. 240 sandpaper to prepare the surface.

Using a roll coater on the base-adjusted plywood surface,
20?Transparent aminoalkynode sanding siller? /
Apply m2 and dry.

Embossing 7 on the plywood surface coated with sanding sealer
A conduit pattern is formed in the Urunasoto material using a rolling roll.

Next, the wood pigment colorant was mixed with 71% by weight of yellow, 18% by weight of Furanoku, and 11% by weight of brown.
This was diluted with thinner in a total ratio of 1:7 to prepare a wall nano base color.

Using a roll coater with a sponge roll, the adjusted base layer color paint is pressed into the recesses formed by the embossing process and applied to the entire surface in an amount of 4,097 m2, allowing it to penetrate, and then dried.

A transparent amino alkynode sanding 7-color was applied at 1009/m2 using a flow coater and dried to form a transparent paint layer.

The surface of the transparent paint layer was polished using No. 360 sandpaper with a wide belt sander to prepare the base for woodgrain pattern printing.

Furthermore, a two-color wall nano-grain pattern is printed using a gravure offset printing machine using a commonly used oil-based ink, and finally an aminoalkyno-do clear is applied using a roll coater for 20 cm. /m2 The decorative board of the present invention was obtained by topcoating and finishing.

(Effects) According to the present invention, a base colored paint layer is provided on the surface of a substrate having a wood pattern such as a conduit hole as a recess so as to penetrate into the recess number of the wood pattern, so that the color tone of the substrate surface is unified. At the same time, the colored paint that has penetrated into the concave portions such as the conduit holes has the practical benefit of emphasizing the wood texture pattern caused by the conduit holes.

Furthermore, according to the present invention, since the transparent paint layer is provided on the top surface of the base colored paint layer, it is possible to suppress peeling of the base colored paint layer and to make the wood texture pattern formed by the conduit holes stand out, giving a three-dimensional effect. have real benefits.

Furthermore, according to the present invention, since the wood grain pattern printing layer is provided on the upper surface of the transparent paint layer, it is possible to have the wood grain pattern on the bottom and the wood grain pattern on the top through the transparent paint layer. The entire pattern becomes extremely three-dimensional, and has the practical benefit of providing a natural-looking wood grain pattern.

Claims (3)

[Claims] (1) A substrate having a wood pattern such as a conduit hole as a concave portion is provided, a colored base paint layer is provided on the surface of the substrate so as to penetrate into the concave portion of the wood grain pattern, and a transparent paint is applied to the surface of the base colored paint layer. A decorative board characterized by having a wood grain pattern printed layer interposed between the layers. (2) A hardwood layer is provided on the surface of the substrate in which conduit holes, etc. that form a wood texture pattern are clearly present as recesses, and a colored base paint is applied to the surface of the substrate so that it penetrates into the depressions of the wood texture pattern. A method for producing a decorative board, which comprises: applying a transparent sanding sealer, drying it, smoothing the surface, and printing a wood grain pattern. (3) A wood texture pattern such as a conduit hole is formed as a recess on the surface of the substrate by embossing, and a colored base paint is applied to the surface of the substrate so as to penetrate into the recess of the wood texture pattern, and then dried. A method for manufacturing a decorative board, characterized in that after applying a sanding sealer and drying, the surface is smoothed and a wood grain pattern is printed.