JPS59102475A - Patterning method for building board - Google Patents

Abstract

PURPOSE:To enable selection of a free design and formation of a pattern having deep feeling by combining patterning by a sputtering method and exposing a part of the pattern by sanding, etc. for patterning. CONSTITUTION:A paint coated film layer 1 having a strong hiding power is formed on the surface of a substrate A for a building board. Said layer is subjected to patterning by a paint coated film layer 2 formed by sputtering. A semitransparent paint coated film layer 3 is formed thereon and after the layer is cured or dried, the layer is sanded until part of the surface on the layer 2 is exposed. A clear paint coated film layer 4 is formed thereon.

Description

[Detailed description of the invention] [Technical field] This invention belongs to the field of construction board manufacturing technology.

[Background Art] Various decorative methods for architectural boards have been known, but a method sufficient for freely selecting a pattern or forming a deep pattern has not yet been developed.

For example, the gravure printing method is extremely simple from the point of view of pattern numbering and is excellent in color expression. However, it is not sufficient for expressing three-dimensional effects.

On the other hand, there are methods such as sizing processing, but although this method is excellent in expressing a three-dimensional effect, its scope of application is limited due to the degree of freedom of expression.

In any case, it has been difficult to simultaneously satisfy the demands for free pattern expression and three-dimensional pattern expression using a single method.

[Purpose of the invention] This invention was made in view of the above circumstances, and aims to provide a method for patterning architectural boards that allows free selection of patterns and expresses depth in the pattern. purpose.

[Disclosure of the invention] This invention involves forming a coating layer with strong hiding power on the surface of a substrate, applying a pattern on it by sputtering, forming a translucent coating layer on top of it, and then The present invention provides a coating method characterized by exposing a part of a sputtered coating film by sanding or the like, and then forming a clear coating layer thereon.

This will be explained in detail below.

After coating the surface of any architectural board, such as asbestos-cement board, gypsum board, silicate board, plywood, natural wood board, etc. with a synthetic resin paint that erases the color of the base, and curing or drying, On top of that, a synthetic resin paint colored in an arbitrary color is applied in an arbitrary pattern by sputtering, cured or dried, and then a translucent synthetic resin paint is painted on the front side, and then cured or dried. After that, the front surface is sanded using a polishing method such as 200 to 300 grit sandpaper until a part of the sputtered surface is exposed, and then a clear synthetic resin paint is applied on top of it and cured or Characterized by drying.

An explanation will be given below based on drawings shown as examples. The figure is a flowchart illustrating the steps of the present invention using cross-sectional views of the substrate.

In this figure, A is a substrate, and the above-mentioned construction board is used as appropriate. If necessary, perform appropriate pretreatment.

A coating layer 1 is formed thereon by coating a paint with strong hiding power that erases the color of the base.

2 is a coating layer applied by sputtering coating.

3 is a semi-transparent coating layer. The painted surface of the board that has been painted to have such a cross-sectional structure is sanded. Then, scrape out part of the tip of the Suba-7 Talling coating layer. Next, a clear coating layer 4 is formed thereon.

The synthetic resin paint used here includes aminoalkyd, acrylic, urethane, and epoxy paints, but is not particularly limited.

Of course, any type such as a thermosetting type, an ultraviolet curing type, an electron beam curing type, etc. may be used.

As for the coating method, any coating method may be used except sputtering coating, and a spray method, a roll coater method, a curtain flow coater method, etc. may be employed as appropriate.

[Effects of the Invention] As explained above, this invention forms a coating layer with strong hiding power on the surface of a substrate, applies a pattern on it by sputtering, and forms a translucent coating layer on top of it. form,
After that, a part of the sputtered coating film is exposed by sanding or the like, and then a clear coating layer is formed thereon, so that the following effects were obtained.

■ Since the patterning is sputtering-like, any patterning is possible.

■ The semi-transparent coating layer as the inner layer adds shading to the sputtered colored pattern, revealing the depth of the pattern.

■ The condition of the pattern can be controlled by the degree of sanding.

■ The sputtering irregularities in the pattern give it depth and give it a luxurious feel.

[Brief explanation of drawings]

The figure is a flowchart for explaining the patterning method of this invention. 1 is a coating layer with strong hiding power 2 is a sputtering coating layer 3 is a translucent coating layer 4 is a clear coating layer A is a substrate Patent applicant Matsushita Electric Works Co., Ltd.

Claims (1)

[Claims] (1) In order to pattern architectural boards, according to the law, a coating layer with strong hiding power is formed on the surface of the substrate, a pattern is applied on top of that by sputtering, and a translucent coating layer is formed on top of that. However, after that, a part of the sputtered coating layer is exposed by sanding or the like, and then a clear coating layer is formed thereon.