JP3592024B2 - Manufacturing method of ceramic exterior wall material - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for producing a ceramic exterior wall material.
[0002]
[Prior art]
Conventionally, ceramic exterior wall materials such as fiber reinforced cement boards have been used very widely as building boards. This fiber reinforced cement board has an advantage that it is excellent in strength and can be mass-produced inexpensively with the same shape.
[0003]
By the way, these ceramic-based exterior wall materials are achromatic colors of gray-white to gray-black, which are the colors of the ceramic-based materials if they are intact, and have poor design, so various coatings are applied to the surface, or various irregularities are provided on the exterior wall material surface. The design is imparted by combining the uneven pattern and the colored coating.
[0004]
As a surface makeup combining the uneven pattern and the colored coating, a brick joint, a tile joint, a concave groove such as a split stone tone is provided, and the same or different color is formed in the concave groove and the convex surface defined by the concave groove. There is an embodiment in which a colored coating is applied.
[0005]
[Problems to be solved by the invention]
The above-mentioned makeup is generally applied uniformly to the entire surface of the ceramic outer wall material with joint grooves by using a flow coater, shower coater, spray, etc., and after drying the coating film, only the convex pattern surface is colored with a roll coater. Alternatively, apply the same color paint, and if the same color paint is applied, apply colored sand particles while the paint does not dry, fix it on the painted surface, remove excess sand particles, and finally perform surface clear painting It was manufactured by.
[0006]
However, in the case of the above means, the paint can only apply two kinds of coloring makeup of the surface of the concave groove and the surface of the convex portion, for example, a multicolored color that changes subtly but has the same color as a brick wall or a natural stone masonry wall using a natural material. It was very difficult to make it look.
[0007]
The present invention has been made in order to solve the above-mentioned problem, and is capable of recognizing more types of coloring while using two-color paints, and mass-producing it in a state in which it matches the surface uneven pattern. The purpose of the present invention is to obtain a method for producing a ceramic exterior wall material that can be colored and painted.
[0008]
[Means for Solving the Problems]
In the method for producing a ceramic decorative outer wall material according to the present invention, a concave groove representing a convex pattern such as a brick joint, a tile joint, or a split stone tone is provided on the surface, and the surface height of the convex pattern defined by the concave groove is provided. Is formed into a ceramic outer wall material having two different heights with respect to the groove bottom, uniformly apply the entire surface of the ceramic outer wall material, and after the coating is dried, with a low hardness rubber roll coater. The present invention is characterized in that a decorative coating is applied to the surface of the convex portion, a uniform coating film is formed on the entire surface of the high convex portion, and a partial coating film is formed on the surface of the low convex portion as if it is faint .
[0009]
In the above, the decorative coating performed on the surface of the convex portion includes, in addition to the case where a single coating is performed by a roll coater and this is simply dried, the case where sand particles are sprayed while the coating film is not dried and fixed on the coating film. In addition, the case where the final clear coating is performed as necessary is included.
[0010]
By applying a decorative coating on the convex surface with a low hardness rubber roll coater, a uniform coating film is formed on the entire surface of the high convex surface, and a partial coating film is formed on the low convex surface as if it were faint. In addition, the inside of the concave groove, the low convex surface, and the high convex surface have different appearances.
[0012]
The raw material constituting the ceramic outer wall material is mainly cement, but other materials such as gypsum are also applicable.
In addition, the uneven pattern on the surface of the ceramic outer wall material is applied by an appropriate means such as a roll press or a press board.
[0013]
【Example】
Next, an embodiment of the present invention will be described.
As shown in FIG. 1, an outer wall material 4 having a concave groove 1, a low convex pattern 2 and a high convex pattern 3 on its surface is formed from a fiber-reinforced cement compounding material. The outer wall material 4 was used as a sample.
[0014]
In addition, the fine uneven pattern 2A was provided only on the surface of the low convex pattern 2 among the convex patterns of the outer wall material 4.
[ Reference Example 1] First, after a base coat was applied to the entire surface of the outer wall material 4, a light gray coat was applied as a first coat, and the touch was dried.
[0015]
Next, a dark red paint was applied to the surface of the outer wall material 4 using a high hardness rubber roll coater, and the surface of the convex portion was applied. In the case of this reference example, the coating film by the roll coater was applied only to the high convex surface 3, but the low convex surface 2 and the inside of the concave groove 1 were the same color paint, but the lightness due to the shade due to the height difference was high. There was a difference, and the appearance looked like a three-color paint.
[Example 1]
The first coating was applied in the same manner as in Reference Example 1, and a dark red paint was applied to the surface of the outer wall material 4 with a low-hardness rubber roll coater to coat the surface of the convex portion.
[0016]
In the case of this embodiment, the coating by the roll coater was such that the high convex surface 3 was uniformly dark red on the entire surface and the low convex surface 3 was partially dark red as if it was faint. As a result, the inside of the groove 1, the low convex surface 2, and the high convex surface 3 had different appearances.
[ Reference Example 2 ]
The first coating is applied in the same manner as in Reference Example 1, and the same color as the first coating is applied using a high-hardness rubber roll coater. While the coating film is not dried, the dark red colored silica sand is sprayed on the outer wall material surface. Then, it was adhered to the coating film surface, and excess sand particles were removed by air blast. Thereafter, it was dried and a clear coating was performed on the surface.
[0017]
In the case of this reference example, the colored makeup with colored silica sand was only on the convex surface 3, but the appearance was similar to that of reference example 1 in three colors.
[Example 2 ]
The first coating was applied in the same manner as in Reference Example 1, and the same light gray coating as that of the first coating was applied using a low-hardness rubber roll coater. Dark red colored silica sand was applied to the outer wall material surface while the coating was not dried. It was sprayed and adhered to the coating surface. Next, excess sand particles were removed by air blast, dried, and the surface was subjected to clear coating.
[0018]
In the case of this example, the colored makeup using colored silica sand was such that the entire high convex surface 3 was uniform, and the low convex surface 2 was partially adhered with dark red sand particles.
[ Reference Example 3 ]
The first coating is applied and dried in the same manner as in Reference Example 1 to give a spot pattern by spatter coating with a dark red paint, and after touch drying, the dark red paint is applied to the surface of the outer wall material 4 with a high hardness rubber roll coater. And the convex surface was painted.
[0019]
In the case of this reference example, the coating by the roll coater was applied only to the high convex surface 3, but due to the effect of the dot pattern and shading scattered in the form of spots on the low convex surface 2 and the inside of the concave groove 1, the coating was applied in three colors Appearance.
[Example 3 ]
The first coating is applied in the same manner as in Reference Example 1, and after drying, a spot pattern is formed by spatter coating with a dark red paint, and after touch drying, the dark red paint is applied to the surface of the outer wall material 4 with a low hardness rubber roll coater. And the convex surface was painted.
[0020]
In the case of this example, the coating film formed by the roll coater adhered to the entire surface of the high convex pattern 2 and a part of the surface of the low convex pattern 3 to form a three-color pattern.
[Comparative example]
From the fiber-reinforced cement compounding material, an outer wall material having a concave groove and a convex pattern of a uniform height on the surface is formed, and after primary curing, the entire outer wall material surface is subjected to the same gray-white coating as in Example 1; The surface of the convex portion was painted in dark red by a roll coater.
[0021]
In this case, the surface of the outer wall material is painted in two colors of the joint portion and the convex portion, and no intermediate color as seen in the embodiment is seen at all, and the design of the outer wall material manufactured by the method of the present invention is not seen. It was confirmed that the properties were excellent.
[0022]
【The invention's effect】
As described above, according to the method of the present invention, it is possible to apply a complicated makeup painting more than a simple two-color painting by a combination of a concave groove, two kinds of high and low convex patterns and a painting. It has the effect that the same coating apparatus can be used and that the implementation is easy.
[Brief description of the drawings]
FIG. 1 is an enlarged sectional view of a main part of an outer wall material used in a method of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... groove 2 ... convex part pattern 3 ... high convex part pattern 4 ... outer wall material

Claims (1)

A groove representing a convex pattern such as a brick joint, a tile joint, a split stone tone is provided on the surface, and the surface height of the convex pattern defined by the concave groove is two different heights relative to the concave groove bottom. The ceramic outer wall material was molded, and the entire surface of the ceramic outer wall material was uniformly coated. After the coating was dried , a low hardness rubber roll coater was used to make a decorative coating on the convex surface, and a high convex surface was obtained. Forming a uniform coating film on the entire surface of the substrate and forming a partial coating film on the surface of the low protruding portion as if it were dim .

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