JP2739697B2 - Method of manufacturing spotted tile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a spotted tile.

[0002]

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

However, in the conventional spot pattern, each spot is a monotonous pattern in which each spot is a single color, and furthermore, the inside and outside of the spot are clearly separated, so that the outline of the spot clearly appears. There were some difficulties such as the lack of softness and softness.

[0004]

SUMMARY OF THE INVENTION In view of such circumstances, the invention of the present application has been made to develop a method of manufacturing a spotted tile with a rich expression that has never been seen before. Thus, the invention of the present application is to mix two or more kinds of powder materials having a predetermined moisture content, which are colored to different colors, further pressurize them to form a lump, and then crush these to obtain a predetermined particle size. Producing secondary particles for spot formation, mixing the secondary particles for spot formation with a powder material for forming a separately prepared base color, such that the mixed material constitutes at least a tile surface layer portion A tile formed body is formed and then fired (claim 1).

[0005] Another invention of the present application is to mix and disperse a powder material of the same kind as any one of the powder materials constituting the secondary particles for forming spots in the powder material for forming the base color. (Claim 2).

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

[0007] Still another invention of the present application is characterized in that the mixed material forms the whole of a tile molded body (claim 4).

[0008]

As described above, according to the first aspect of the present invention, two or more kinds of powder materials colored differently are mixed and pressurized to form a mass, and further crushed to form spots. The secondary particles having a predetermined particle size are produced and mixed with other powder materials to constitute at least the surface layer portion of the tile.

In the case of the spotted tile of the present invention, one of the spots
Powder particles of 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 spot pattern with a complex and varied expression is obtained.

According to a second aspect of the present invention, the same powder material as any of the powder materials forming the internal pattern of spots is mixed with a powder material forming a base color. According to this, any one (one or two or more) of the plurality of colors forming the internal pattern of the 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 a common color pattern contained therein. Therefore, unlike the conventional spot pattern, each spot does not rise from the surroundings, and each spot becomes dissolved in the surrounding pattern (base color pattern), which cannot be obtained with the conventional spot pattern. The result is a soft, complex and tasty spotted pattern.

According to a third aspect of the present invention, a finer particle than the secondary particles for forming spots is used as the powdery material for forming the base color. A pattern in which spots are scattered like islands can be formed.

The spot pattern can be formed only on the surface layer of the tile, but can be formed over the entire tile. In the latter case, if the above-mentioned mixed material is press-molded, a tile molded body can be obtained as it is, and thereafter, by baking it, a spotted tile can be easily produced.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; In FIG. 2A, reference numeral 10 denotes a speckled tile. FIG. 2B is an enlarged view of this spot pattern, in which 12 is a base color portion, and 14 is large spots scattered in an island shape in the base color portion 12. is there.

In this example, for example, the color of the base color portion 12 is made of white, and the large spots 14 are made of pink. And this pink large spot 1
In FIG. 4, small black spots 16 are further scattered.

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 straddle the base color portion 12 and the large spots 14.

FIG. 1 shows an example of a specific manufacturing method of the speckled tile 10. In the method of the present example, the pigment is colored to a different color, specifically, contains a pigment that develops a pink color and has a water content of 7 to 9% and a particle size of approximately 0.2 to 1%.
powder material 20 consisting of spray powder having a particle size of approximately 9 to 9% and a pigment having a particle size of approximately 0.2.
A powder material 22 composed of spray powder of about 1 mm is accommodated in a tank 18 and is mixed in a predetermined ratio by a predetermined mixer, for example, a pink powder material 2 in a mixing step (I).
0 is 70% and black powder material 22 is 30%.

Next, the thus-obtained mixed material 24 is pressed by a pressing roller 26 to form a rice cracked mass 28 (step (II)). The mass 28 has, for example, a thickness of 2.
It has a size of about 5 to 3 mm and a size of about 100 to 150 mm. The reason why the mass 28 is obtained simply by pressing the mixed material 24 is that each of the powder materials 20 and 22 contains a certain amount of moisture.

Next, the mass 28 is crushed by a crusher.
The particles are granulated into secondary particles 30 having a predetermined particle size (step (III)).
Various means can be used as the crushing means. For example, as such crushing means, a rice cake-like mass 28 is rubbed against a predetermined mesh-like body with a rotating blade to decompose it and pass it through a mesh to a predetermined particle size. (Desine crushing) can be used.

After the secondary particles for large speckles having a predetermined particle size (in this example, the particle size is approximately 4 to 6 mm) are obtained by the above-described crushing, in the step (IV), the secondary particles are used as base particles 1
2 to form a white powder material (particle diameter: 0.2 to 1 m)
m) 32 and the black powder material 22 at a predetermined ratio. The mixing ratio is, for example, 45% for the white powder material 32 and 15% for the black powder material 22 with respect to 40% of the material composed of the secondary particles 30.

Next, the 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, at the time of firing, each pigment contained in each powder material develops a color and forms the above-mentioned spot pattern.

In the speckled tile 10 manufactured by the method of the present embodiment, independent small spots 16 are formed in each of the large spots 14, and small black spots 16 in the large spots 14. 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. Is a complex and tasty pattern,
In addition, the large spots 14 are integrated with the surroundings without being separated from the surroundings, thereby realizing a soft expression.

The embodiment of the present invention has been described in detail above, but this is merely an example. For example, in the present invention, the spot pattern can be formed only on the surface layer of the tile, or another different large spot can be formed in the base color portion.

Further, the present invention may be implemented in various modified forms based on the knowledge of those skilled in the art without departing from the gist of the invention, for example, large spots may be composed of powder materials of three or more colors. It is possible.

[Brief description of the drawings]

FIG. 1 is a process explanatory view of a method according to an embodiment of the present invention.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Spotted pattern tile 12 Base color part 14 Large spot 16 Small spot 20, 22, 32 Powder material 28 Lump 30 Secondary particles

Claims (4)

(57) [Claims] 1. A method for forming spots having a predetermined particle size by mixing two or more kinds of powder materials having a predetermined moisture content, which are colored to different colors, and further pressurizing to form a lump. The secondary particles for the formation of spots are mixed with a powder material for forming a base color prepared separately, and the mixture is tile-formed such that the mixed material constitutes at least a tile surface layer portion. A method for producing a spotted tile, comprising forming a body and then firing the body. 2. A powder material of the same kind as one of the powder materials constituting the secondary particles for forming spots is also mixed and dispersed in the powder material for forming the base color. Item 4. The method for producing a spotted tile according to Item 1. 3. The method of manufacturing a spotted tile according to claim 1, wherein the powder material forming the base color is finer than the secondary particles for forming spots. 4. The method for producing a spotted tile according to claim 1, wherein the mixed material forms an entire tile molded body.