JPS59131590A - Manufacture of granite-like inorganic dressing board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an inorganic decorative board similar to Mikagu stone.

Conventionally, inorganic board materials whose main component is cement have been widely used, but this type of inorganic board material has poor decorative properties because the color of the base H is achromatic, so the surface is often painted.

In view of the above, the present invention has been made with the object of providing a method for easily applying a Mikage stone-like coating to an inorganic decorative board, in which lightweight aggregate or thermoplastic synthetic resin beads are used. The surface of the mineralized board that has been mixed and cured in an autoclave is polished to the extent that the surface does not become fluffy, then a colored paint is applied with a sponge coater, an undercoat is applied, and then a clear coat is applied. It is characterized by applying paint or colored paint using a flow coater, applying a topcoat, and then drying.

This invention will be explained below with reference to Examples.

The method for producing an inorganic decorative board in the style of Mikage stone according to the present invention is to first add a lightweight aggregate, such as a foamable inorganic lightweight aggregate such as pumice or shirasu balloon, to an inorganic material made from cement, reinforcing fibers, and aggregate. Or thermoplastic synthetic resin beads A
The surface of the inorganic board 1, which has been molded with a mixture of carbon dioxide and cured in an autoclave, is polished to the extent that the surface does not become fluffy, and as shown in Fig. 1, lightweight bone tissue or synthetic resin beads are formed. After processing the surface so that micropores 2...2 appear on the surface, a colored paint 3 is applied to this surface using a sponge coater, and as shown in Figure 2, the smooth surface of the plate Iol is coated. An undercoat is applied by uniformly distributing the coated surface over the inner surface of the micropores 2...2, and then a clear paint or colored paint 4 is applied with a flow coater on the undercoat surface, and a topcoat is applied. , and then dried.

2, when applying the paint 4 with a flow coulter, the paint 4 does not flow into the micropores 2...2 with a diameter of about 2 mm or less due to the influence of the surface tension of the paint 4, resulting in so-called pinholes. This results in an unpainted state as shown in FIG.

Therefore, the paint 4 is uniformly applied on the smooth surface IA of the plate material 1, but only the paint 3 applied by the sponge coater is on the inner surface of the micropores 2...2, and the presence of the micropores is visually apparent. As a result of this emphasis, the surface is finished to look like Mikageite, as shown in Figure 4.

In addition, the sponge coater used in the practice of this invention should have a hardness of 30 to 5o, as it is necessary to sufficiently spread the paint into the micropores 3...2 on the surface of the inorganic board 1. Furthermore, when applying the paint 3, it is pressed onto the surface of the inorganic plate material 1 with a certain amount of pressure.

By varying the hardness and pressing force of the sponge coater, the amount of paint that can be forced into the micropores can be adjusted. By changing the diameter, micropores 2 and
... You can also freely select the thickness of 2, and by adjusting and selecting these, you can even get closer to the appearance of Mikage stone.

Furthermore, the sponge coater is provided in several stages,
It is also possible to paint in multiple colors.

Since the present invention is configured as described above, it is possible to manufacture a decorative board that has the appearance of Mikage stone by using an inorganic board material that has been molded and hardened by adding lightweight aggregate, synthetic resin beads, etc. Further, since it can be carried out by combining conventionally used coating means, it has the advantage of being easy to carry out.

[Brief explanation of the drawing]

1 to 3 are enlarged cross-sectional views of main parts in the process of implementing this invention, and FIG. 4 is a decorative board manufactured by this invention.
FIG. 1... Inorganic plate material, 2... Micropore, 3... Paint (
Sponge coater application), 4...Paint (flow coater application). -53( -7″4m -537-

Claims (1)

[Claims] (1) The surface of an inorganic plate material mixed with lightweight aggregate or thermoplastic synthetic resin beads and cured in an autoclave is polished to the extent that the surface does not become fluffy, and then the colored paint is applied with a sponge. A method for producing an inorganic decorative board in the style of Mikage stone, characterized by applying it with a coater, applying an undercoat, then applying a clear paint or a colored paint with a flow coater, applying a topcoat, and then drying.