JPH0741377A - Production of spotted tile - Google Patents

Abstract

PURPOSE:To produce a novel spotted tile. CONSTITUTION:Two or more kinds of powder materials 20 and 24 colored in a different color and hating a specified content of water are mixed, and then the mixture is compacted to form a nodular body 28 which is then disintegrated to produce an aggregated particle 30 for forming spots having a specified size. The aggregated particle 30 is mixed with a powder material 32 prepared separately and used for forming a base color, a tile compact is formed so that the mixed material forms at least a tile surface layer, and the compact is burnt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing speckle pattern tiles.

[0002]

2. Description of the Related Art Various patterns are conventionally known as decorative patterns on the surface of tiles.
The speckled pattern on the tile surface is one of the typical ones. This speckled pattern enhances the expression on the tile surface,
It is also effective in expressing a soft feeling.

However, the conventional speckled pattern is a monotonous pattern in which each spot is made of a single color, and the inside and outside of the spot are clearly separated, so that the contour line of the spot is clearly projected. There were some difficulties, such as one inadequacy in terms of softness and softness.

[0004]

Under the circumstances described above, the invention of the present application has been made to develop a method for producing a speckled pattern tile having a richer expression than ever before. Therefore, the invention of the present application is to mix two or more kinds of powder materials having a predetermined water content, which are colored in different colors, and further pressurize them to form lumps, which are then crushed to have a predetermined particle size. A secondary particle for spot formation is produced, and the secondary particle for spot formation is mixed with a separately prepared powder material for forming a base color so that the mixed material constitutes at least the tile surface layer portion. It is characterized in that a tile molded body is molded into a sheet and then fired (claim 1).

Another invention of the present application is to mix and disperse a powder material of the same kind as any of the powder materials constituting the secondary particles for forming the spots in the powder material for forming the base color. (Claim 2).

Still another invention of the present application is characterized in that the powder material forming the base color is finer than the secondary particles for spot formation (claim 3).

Still another invention of the present application is characterized in that the mixed material constitutes the entire tile molded body (claim 4).

[0008]

As described above, the invention of claim 1 is for forming spots by mixing and pressurizing two or more kinds of powder materials colored in different colors to make them into lumps, and further crushing them. The secondary particles having a predetermined particle size are produced, and the secondary particles are mixed with another powder material to form at least the surface layer portion of the tile.

In the case of the speckle pattern tile of the present invention, one of the spots is
The powder particles having different colors are irregularly dispersed inside each one. As a result, each of the spots has an independent pattern, and when viewed as a whole, a complex spot pattern having a rich and varied expression is obtained.

According to a second aspect of the present invention, the same powder material as any one of the powder materials forming the internal pattern of the spots is mixed with the powder material forming the base color. According to the method, any one of a plurality of colors (one color or two or more colors) forming the internal pattern of spots is dispersed in the base color.

As a result, the internal pattern of the spots and the external pattern (base color pattern) are connected by the common color pattern contained therein. Therefore, unlike the conventional spot pattern, each spot does not float up from the surroundings, and each spot appears to be fused into the surrounding pattern (base color pattern), which cannot be obtained with the conventional spot pattern. A soft and complex deep speckled pattern is obtained.

According to the third aspect of the present invention, finer particles than the secondary particles for spot formation are used as the powder material forming the base color. It is possible to form a pattern in which spots are scattered like islands.

The spot pattern can be formed only on the surface layer of the tile, but it can be formed over the entire tile. In the latter case, a tile molded body can be obtained by pressing the above mixed material as it is, and then a speckle pattern tile can be easily manufactured by subjecting this to a baking treatment.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 2 (A), 10 is a spot pattern tile. FIG. 2B is an enlarged view of this speckled pattern. In the figure, 12 is a portion forming the base color, and 14 is large spots scattered in islands in the base color portion 12. is there.

In this example, the color of the base color portion 12 is white, and the large spots 14 are pink. And this large pink spot 1
Further, small black spots 16 are scattered in the image No. 4.

The small black spots 16 are also scattered on the base color portion 12. That is, in this example, small black spots 16 are formed over the entire surface so as to extend over the base color portion 12 and the large spots 14.

FIG. 1 shows an example of a concrete manufacturing method of the speckle pattern tile 10. In the method of this example, a pigment having a different water color, specifically, the above-described pigment that develops in pink is contained, has a water content of 7 to 9% and a particle size of approximately 0.2 to 1.
mm powder powder 20 and a pigment that develops black and having a water content of 7-9% and a particle size of approximately 0.2.
The powder material 22 made of spray powder of ˜1 mm is housed in the tank 18, and these are mixed in a predetermined ratio by a predetermined mixer in the mixing step (I), for example, the pink powder material 2
0 is 70% and the black powder material 22 is 30%.

Next, the mixed material 24 thus obtained is pressed by a pressing roller 26 to form a rice cake-shaped lump 28 (step (II)). The lump 28 has a thickness of, for example, 2.
The size is about 5 to 3 mm and the size is about 100 to 150 mm. Here, the lump 28 is obtained by simply pressurizing the mixed material 24 because each of the powder materials 20 and 22 contains a certain amount of water.

Next, this lump 28 is crushed by a crusher,
The secondary particles 30 having a predetermined particle size are granulated (step (III)).
Various means can be used as a crushing means. For example, as such a crushing means, a rice cracker-like lump 28 is rubbed against a predetermined reticulated body with a rotary blade, and the crushed body is decomposed and a predetermined grain size is passed through a mesh. It is possible to use the method of crushing secondary particles 30 (decine crush).

After crushing as described above, large spot secondary particles having a predetermined particle size (in this example, a particle size of about 4 to 6 mm) are obtained.
2 white powder material (particle size 0.2-1m
m) 32 and the black powder material 22 at a predetermined ratio. The mixing ratio is, for example, 45% of the white powder material 32 and 15% of the black powder material 22 to 40% of the material composed of the secondary particles 30.

Next, this mixed material is filled in a press mold and dry press-molded (step (V)), and then the tile molded body is fired (step (VI)). Then, each pigment contained in each powder material is colored during the firing to form the above-mentioned spot pattern.

In the speckle pattern tile 10 manufactured by the method of this example, the individual small spots 16 are formed in each of the large spots 14, and the small black spots 16 in the large spots 14 are formed. Black spots 16 similar to
Are also formed in the base color portion 12.

The small black spots 16 serve to connect the large spots 14 and the base color portion 12, and each large spot 14 itself forms an independent spot pattern. Has a complicated and tasty pattern,
In addition, the large speckles 14 do not separate from the surroundings but are integrated into the surroundings in appearance to realize a soft expression.

Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, in the present invention, it is possible to form the speckle pattern only on the surface layer portion of the tile, or it is possible to form other different large speckles in the base color portion.

Further, the large spots can be composed of powder materials of three or more colors, and the present invention is carried out in a mode in which various modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the invention. It is possible.

[Brief description of drawings]

FIG. 1 is a process explanatory diagram of an embodiment method of the present invention.

FIG. 2 is a diagram of a speckle pattern tile obtained by the same method.

[Explanation of symbols]

 10 speckle pattern tile 12 base color portion 14 large spots 16 small spots 20, 22, 32 powder material 28 lumps 30 secondary particles

Claims (4)

[Claims] 1. A method for forming spots having a predetermined particle size by mixing two or more kinds of powder materials colored with different colors and having a predetermined water content and further pressurizing to form a lump, which is then crushed. The secondary particles for forming the spots are mixed with a separately prepared powder material for forming the base color, and the mixture is tiled so that the mixed material constitutes at least the tile surface layer portion. A method for producing a speckled pattern tile, which comprises molding a body and then calcining the body. 2. A powder material of the same kind as any one of the powder materials constituting the secondary particles for forming the spots is mixed and dispersed in the powder material for forming the base color. Item 2. A method for producing a speckled pattern tile according to Item 1. 3. The method for producing a speckle pattern tile according to claim 1, wherein the powder material forming the base color is finer than the secondary particles for spot formation. 4. The method for producing a speckled pattern tile according to claim 1, wherein the mixed material forms the entire tile molded body.