JPH0336512Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inorganic board material having a three-dimensional effect, which has an uneven pattern, is colored in a desired color to the inside, and has a painted surface.

Conventionally, hydraulic inorganic board materials such as cement, slag slag, or gypsum are used as the main raw material, and the color of the inorganic board material formed into the board material by paper-making equipment is almost the same as the color of the main raw material. The color ranged from white to gray. For this reason, the decoration of these boards was generally done by applying various colored paints to their surfaces or pasting decorative sheets on them. However, inorganic boards have the disadvantage that they are more likely to chip than wood-based boards such as plywood, and even if the surface is carefully decorated, slight chips will be noticeable during transportation or construction, significantly reducing the product value. or even became completely unusable.

For example, Japanese Utility Model Application Publication No. 53-145961 proposes an artificial stone wall that is colored inside, but the above artificial stone wall is formed by sandblasting the surface to reveal the cement material on the surface. For,
The surface is easily stained, the design is problematic, and the three-dimensional effect is poor.

Therefore, in this invention, in an inorganic board material with an uneven pattern formed on the surface and uniformly colored in a desired color to the inside, paint of different colors is applied to the concave and convex parts of the uneven pattern, and The above-mentioned drawbacks are solved by providing an inorganic board material in which the color of the paint applied to the concave portions or convex portions is the same as the color of the interior of the board material. In addition, in the inorganic board material of this invention, the inside is colored, which means that it is a color other than the main raw material, and a coloring agent such as a pigment of the same color as the paint applied to the surface is mixed or injected. This means that the inside is evenly colored.

Hereinafter, this invention will be described in detail along with a cross-sectional view of an inorganic plate material that is an example of this invention.

Reference numeral 1 indicates an inorganic plate material according to an embodiment of this invention, and reference numeral 2 indicates a coloring agent mixed inside the plate.

The main raw materials for board material 1 are commonly used hydraulic inorganic materials such as cement, slag slag, and gypsum, and the secondary materials are fibers such as pulp and asbestos, and aggregates such as silica sand and perlite. , ordinary pulp cement board, asbestos slate board, flexible board, gypsum board, gypsum slag board, calcium silicate board, GRC board, etc., and is not particularly limited.

The colorant 2 is preferably a commonly used pigment or dye, such as an inorganic pigment such as yellow lead, red iron oxide, or ultramarine, or an organic pigment, and has excellent alkali resistance. A preferred method for uniformly coloring the inside of the plate material 1 with the colorant 2 is a method in which the colorant is added to a slurry of a mixture of a water-curable inorganic material, an auxiliary raw material, and water to form the plate material 1.

The surface of the board 1 has an uneven pattern as shown in Figure 1, and the uneven pattern surface is coated with opaque or transparent paints 3 and 4 of different colors on the concave and convex parts. It is applied to create a decorative board that emphasizes the uneven pattern.

The types of paints 3 and 4 are selected depending on the intended use of the decorative board; for example, acrylic resin paints or lacquer paints are used for interior materials, and urethane resin or vinyl resin paints are used for exterior materials.

To change the color between concave and convex parts, use plate material 1.
A method such as applying the paint 3 to the entire surface using a flow coater or a spray coater and then applying the paint 4 only to the convex portions using a roll coater can be adopted.

Regarding the colors of paints 3 and 4, the three-dimensional effect of board 1 is further emphasized by applying paint 4, which is applied to the convex parts, with higher brightness and saturation than paint 3, which is applied to the entire surface. .

Furthermore, since the color of the paints 3 and 4 applied to the concave portions or convex portions and the color of the inside of the base material are adjusted to be the same color, even if a chip occurs in the board material 1, the defective portion will not be noticeable. The same color here refers not only to colors that are exactly the same, but also to the range that can be judged to be the same color based on the judgment ability of a general human being, such as JIS
In the color chart specified in No. Z 8721, adjacent brightness and color ranges can be visually determined to be the same color.

As mentioned above, the inorganic board material of this invention is uniformly colored to the inside, and the color is the same as the color of the paint applied to the surface, so even if defects such as chips or cracks occur, It is not noticeable if the area is small.
Furthermore, since the concave and convex portions of the uneven pattern are coated with different colors of paint, the uneven pattern is emphasized and the three-dimensional effect of the inorganic plate material is increased.

[Brief explanation of the drawing]

FIG. 1 shows a sectional view of an inorganic plate material which is an embodiment of this invention. 1... Board material, 2... Coloring agent, 3, 4... Paint of different colors.

Claims (1)

[Scope of utility model registration request] In an inorganic board material that has an uneven pattern formed on its surface and is uniformly colored to the desired color to the inside, a paint of a different color is applied to the concave and convex portions of the uneven pattern, and the paint is applied to the concave or convex portions. An inorganic board material characterized by the color of the paint on which it is painted and the color inside the board material.