JPH037370Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is characterized in that a paint layer 4 of a color different from that of the substrate 1 is formed on the convex portions 2 or the concave portions 3 of an inorganic substrate 1 having an uneven pattern colored in a desired color to the inside. The purpose of the present invention is to provide a decorative board with a novel appearance, relating to an inorganic decorative board material with an uneven pattern.

Traditionally, the color of inorganic boards made from hydraulic inorganic materials such as cement, water slag, or gypsum as main raw materials and formed into boards using paper-making equipment is determined by the color of the main raw materials. Most are white to gray in color. For this reason, it was common for these boards to be decorated by coating their surfaces with various colored paints or by pasting decorative sheets on them. In particular, in the case of inorganic board materials with uneven patterns, one way to emphasize the three-dimensional effect is to apply an undercoat to the entire surface of the board, and then apply a top coat of paint in a color different from the undercoat only to the top of the convex parts, or apply an undercoat. After painting, a method was used in which a top coat of a color different from the base coat was applied to the entire surface, and only the top coat near the convex portions was scraped off to expose the base coat. However, with the above method, the painting process becomes complicated, and if even the slightest unevenness of coating occurs, the color of the substrate stands out as a white color on the decorative board surface, resulting in an unsightly appearance.

The present invention solves the above drawbacks and will be described in detail below.

The inorganic substrate 1 of the present invention is made of a hydraulic inorganic material such as cement, water slag, gypsum, or water glass as the main raw material, and is formed into a plate using a papermaking device or an extrusion device, and has a wood grain pattern on its surface. A pulp cement board, an asbestos slate board, a flexible board, a gypsum board, a gypsum slag board, a calcium silicate board, which has three or two patterns of unevenness such as a stucco pattern, and is further colored in a desired color to the inside of the substrate 1. , GRC board, etc. For coloring, commonly used pigments and dyes such as inorganic pigments such as yellow lead, red iron oxide, and ultramarine, and organic pigments are preferred, and those with excellent alkali resistance are preferred.

As a method for uniformly coloring the inside of a substrate with a coloring agent, it is preferable to add the coloring agent to a slurry of a mixture of a hydraulic inorganic material, an auxiliary raw material, and water, and then forming the slurry into a plate. Note that the surface of the base material has an uneven pattern such as a wood grain pattern or a stucco pattern as shown in FIG.
A paint layer 4 of a different color is formed. To give an example, in the case of a pulp cement board, etc., where the substrate is colored blackish brown and has an uneven pattern like a wood grain pattern, an enamel paint with excellent durability and alkali resistance such as a white urethane resin is applied only to the convex pattern area. By applying a coating using a roll coater or the like, and then coating the entire surface with a transparent urethane resin paint, it is possible to obtain a decorative board with an uneven pattern that looks like raised roasted cedar. As another example, if the substrate is colored yellowish-white and has an uneven pattern like a wood grain pattern, a colored transparent paint colored brownish-brown is applied to the entire surface of the substrate, and the paint is flowed into the concave portions. After drying, the concave parts are finished in a dark color by creating differences in coating thickness, and the convex parts show the color of the substrate, and the decorative board as a whole has the appearance of a baked cedar-like floating process. There are ways to do this.

As described above, in the decorative board of the present invention, the substrate itself is colored in a desired color, has a patterned unevenness, and furthermore, one of the uneven patterned parts is painted in a color different from the substrate color. Not only does the decorative board have a rich three-dimensional appearance, but it also has the advantage of being easy to paint and finish.

[Brief explanation of the drawing]

FIG. 1 shows a cross-sectional view of an inorganic decorative board with an uneven pattern according to an embodiment of the present invention, and FIG. 2 shows a plan view of the decorative board having an uneven pattern with a wood grain pattern. 1... Concave-convex pattern inorganic substrate, 2... Convex portion, 3
...Concave portion, 4...Paint layer.

Claims (1)

[Claims for Utility Model Registration] 1. A paint layer 4 of a color different from that of the substrate is formed on the convex portions 2 or concave portions 3 of an inorganic substrate 1 having an uneven pattern colored in a desired color to the inside. An inorganic decorative board material with an uneven pattern. 2. An inorganic decorative board material with an uneven pattern according to claim 1 of the registered utility model claim, wherein the uneven pattern is a wood grain pattern.