JPH09300329A - Manufacture of mottled dot pattern tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a new mottled dot pattern tile wherein a pattern of mottled dots is entirely different form traditional one. SOLUTION: A powdery tile raw material 20 is placed on a conveyor belt 18 and transferred. While a powdery pigment 14 is, in a stripe shape, continuously fed on the tile raw material and while those tile raw material 20 and pigment 14 are continuously fed from a tip part of the conveyor belt 18 toward a downward rolling press machine 22, they are pressurized into a thinely stuffed massive piece 26. Thereafter, the massive piece 26 is crushed with a crusher 28 to a particle 12 of a specific particle size to manufacture porcelain earth. The porcelain earth is dry pressed with a pressing machine, and burnt to obtain a mottled dot pattern tile.

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 a speckle pattern tile, and more particularly to a novel method for producing a speckle pattern tile having a speckle pattern completely different from the conventional one.

[0002]

2. Description of the Related Art As a method for coloring a tile to a predetermined color, conventionally, a pigment is added to a raw material of a tile and the mixture is uniformly mixed to form a clay for a tile. There is known a method of dry press-molding the above-mentioned material with a press-molding machine and then firing it (for example, JP-A-2-34
306). However, in the case of this method, the tile is colored in a uniform color as a whole, and the change is poor.

Therefore, it has been widely practiced to form a decorative pattern on the tile surface. Various patterns have been known as a decorative pattern on the tile surface, and a speckled pattern on the tile surface is one of the typical ones. This speckled pattern is effective in enhancing the facial expression on the tile surface and expressing a soft and soft feeling.

However, in the conventional spot pattern, each of the spots is uniformly colored as a whole, so that there is a problem that the obtained spot pattern becomes relatively monotonous.

This originates exclusively from the method of manufacturing speckled tiles. That is, there are glazed tiles and non-glazed tiles in this kind of speckled pattern tile, but the manufacturing method of these glazed tiles and non-glazed tiles, specifically the method of forming spots is different, and thus the former glazed tiles In the case of, the spotted pattern is formed by applying a glaze of a predetermined color on the tile base material in a droplet shape, while in the case of the latter non-glaze tile, a pigment is added to the tile material (base material). Add and mix to make granular kneaded clay of a predetermined color, and add similarly mixed granular kneaded clay of different colors to the mixture, and then mix them by dry press molding with a press molding machine. I was trying to form a pattern.

As a result, in both the glazed tile and the non-glaze tile, the spots are entirely and uniformly colored, and the spot pattern becomes a relatively monotonous pattern.

As a method for forming a speckled pattern on a tile,
In addition, a slurry-like pigment is added to the powdery tile raw material in a streak-like manner and then introduced into a sieve as it is, and passed through the sieve with a rotary blade to form a kneaded clay,
A method has been proposed in which the kneaded material is subjected to dry press molding (Japanese Patent Laid-Open No. 7-242460).

However, in the case of this method, since the pigment is simply dispersed non-uniformly in the kneaded material, it is still inadequate in terms of the novelty of the speckled pattern. In the case of the above, there was a problem that after the pigment was added to the kneaded material, the pigment was dispersed in the kneaded material and gradually spread in the process of carrying out various treatments, for example, carrying, handling, press molding, etc. of the kneaded material. .

[0009]

The invention of the present application has been made to solve such a problem. Thus, the invention of the present application is to continuously convey powdery tile raw material in a streak pattern onto the tile raw material while transferring the powdery tile raw material on a conveyor belt, and convey the tile raw material and pigment to the conveyor. While continuously feeding toward the roll pressure machine below the tip of the belt, press it with the roll pressure machine to form a rice cracker-like lump piece, and then crush the lump piece into granules of a predetermined particle size with a crusher. Then, the kneaded material is manufactured, and the kneaded material is dry press-molded by a press molding machine and fired (claim 1).

According to another invention of the present application, a powdery tile raw material is placed on a conveyor belt and transferred, dropped from the tip of the conveyor belt, and continuously supplied toward a roll pressing machine below, while the roll is applied. The powdery pigment is directly and linearly dropped and supplied to the pressure machine, and the tile raw material and the pigment are pressed together by the roll pressure machine to form a rice cracker-shaped lump piece. It is characterized in that it is crushed into particles having a predetermined particle size by a crusher to produce a kneaded material, and the kneaded material is dry-press molded by a press molding machine and fired (claim 2).

[0011]

As described above, according to the first aspect of the invention, the powdery tile raw material is conveyed by the conveyor belt while the powdery pigment is continuously supplied in a streak shape, and the tiles are continuously supplied. It is continuously supplied to the roll press and pressed by the press to form a rice cracker-like lump, which is then crushed into granules by a crusher to produce kneaded clay, which is press-molded. According to the present invention, a kneaded material, which is an aggregate of particles in which the pigment is nonuniformly mixed in a stripe shape or the like, can be obtained. That is, it is possible to obtain a kneaded clay in which each grain has a streak-like pattern.

By press-molding the kneaded clay to manufacture tiles, tiles having a novel speckled pattern which has never been obtained can be obtained.

Further, according to the present invention, the powdery pigment supplied to the tile raw material is pressed against the raw material kneaded clay in the subsequent pressurizing step by the roll presser, that is, the step of forming a lump-like block. Since it is integrated with the mass of the raw kneaded material, the pigment does not disperse through the subsequent treatment, and therefore, the tile kneaded material grains with a clear streak pattern are obtained in the subsequent crushing process. .

Therefore, when a tile is press-molded by using a kneaded material composed of an aggregate of the grains and fired, a streak pattern or the like does not bleed around and becomes unclear, and each grain is clearly defined. It is possible to obtain a tile having a speckled pattern with stripes.

Further, in the present invention, since the pigment is not in a uniformly dispersed state, the color is not uniform in each grain, and therefore, the state in which the tile is composed of a large number of grains is clearly visible. As a result, a speckled pattern tile having a completely different appearance from the conventional one can be obtained.

Next, in the invention of claim 2, instead of adding the powdery pigment to the tile raw material on the conveyor belt in a streak pattern, the tile raw material is directly supplied to the roll press machine continuously supplied. The powdered pigment is supplied in a uniform and streak shape, and the tile raw material and the pigment are pressed into a rice cracker-shaped lump by a roll press, and then the lump is crushed into predetermined particles by a crusher. In this invention, a tile having a speckled pattern similar to that of the invention of claim 1 can be obtained by making a kneaded clay.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a non-glaze tile having a spot pattern called a base material. The spot pattern tile 10 is formed by dry press-molding a raw kneaded material made up of a large number of grains 12 having a predetermined grain size, and firing it. Each of the grains 12 forms a spot.

Thus, as shown in the enlarged view, many of the spots (grains 12) are streaked with the pigment 14, and other spots (grains 12) contain a large amount or a small amount of the pigment 14. As a whole, each spot is not evenly colored, and each spot has its own unique pattern. It has a new speckled pattern.

FIG. 2 shows a specific manufacturing method of the speckle pattern tile 10. As shown in the figure, in the method of this example, while the powdery tile raw material 20 is placed on the conveyor belt 18 of the conveyor device 16 and transferred, the powdery pigment 14 is dropped and supplied in a streak pattern. . Here, the powdery tile raw material 20 has, for example, a width of 350 mm and a thickness of 20.
Place on a conveyor belt 18 at ~ 30 mm and transfer.
On the other hand, the powdery pigment 14 is supplied to the tile raw material 20 in an amount such that the total content is about 1 to 2%.

In this example, the conveyor belt 1
While transporting the tile raw material 20 and the pigment 14 by 8, it is dropped toward the roll pressing machine 22 below the tip,
Then, the tile raw material 20 and the pigment 14 are pressed together by a pair of rolls 24 of the roll press 22 to form a lump-shaped block 26. Here, the lump piece 26 has, for example, a size of 20 to 30 cm and a thickness of about 1.0 to 2.0 mm.

Next, the lump pieces 26 thus produced are crushed by a crusher 28. Here, the crusher 28 is a net crusher which crushes the lumps 26 into a grain having a predetermined size by rubbing the lump pieces 26 with a rotating blade or the like to pass the mesh of the net having a predetermined mesh. Sinter can be preferably used. Here, it is desirable that the net has a mesh having a size of 11 mesh or more.

By crushing the lump pieces 26 in this manner, the particles 12 having a predetermined size can be obtained. In this case, the size of the particles 12 is, for example, about 5 to 15 mm.

In each of the particles 12 thus produced, the pigment 14 is irregularly contained in a state in which it is not uniformly dispersed, and most of them are contained in a streaky state. ing.

After the particles 12 are formed in this manner, the aggregate is used as a kneaded material, which is dry press-molded by a press molding machine (not shown) to form a predetermined tile shape. Then, the spot pattern tile 10 shown in FIG. 1 can be obtained by subsequently firing according to a conventional method.

FIG. 3 shows another embodiment of the method of the present invention, in which the pigment 14 is placed on a conveyor belt 18
Instead of supplying it to the tile raw material 20 above, it is supplied to the roll press 22 directly and together with the tile raw material 20 in a streak shape. The other points are the same as the method shown in FIG. Also in this example, the tile 10 having the spot pattern similar to that of the first example shown in FIG. 2 can be obtained.

As described above, according to the present example, the spots in which each of the particles is dark or lightly colored or the spots in which the pigment is streaked, that is, the spots in which streaks themselves have a streaky pattern, It is possible to obtain the speckle pattern tile 10 in which the streak pattern is straight, curved, or partially in the speckle.

In this speckled pattern, the boundary line of each grain 12 is visually represented, and the speckled pattern tile 10 having an aesthetic appearance completely different from the conventional one is obtained. Further, in the case of the manufacturing method of the present example, the tile raw material 20 and the pigment 14 are once moved to the roll pressing machine 2
The granules 12 are obtained by crushing the rice cake-shaped lump pieces 26 by applying pressure to the tile raw material 20 and the pigment 1 in the pressing step using the roll press 22.
4 is closely adhered and integrated, so that the pigment 14 does not disperse through the subsequent treatment, and even after the subsequent treatment,
That is, in the final tile 10, the pigment 14 is contained in each grain 12 in a state of forming a clear pattern.

The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention can be implemented in variously modified modes without departing from the spirit of the invention.

[Brief description of drawings]

FIG. 1 is a diagram showing a speckle pattern tile obtained by a method according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a method for manufacturing the speckle pattern tile of FIG.

FIG. 3 is an explanatory diagram of a manufacturing method different from that of FIG. 2 for manufacturing the speckle pattern tile of FIG. 1;

[Explanation of symbols]

 10 speckle pattern tile 12 particles 14 pigment 18 conveyor belt 20 tile raw material 22 roll press 26 lump piece 28 crusher

Claims (2)

[Claims] 1. A powdery pigment raw material is continuously fed in a streak form on the tile raw material while the powdery tile raw material is placed on a conveyor belt and transferred, and the tile raw material and the pigment are provided at the tip of the conveyor belt. While continuously feeding toward the roll presser below the section, press the roll presser to form a rice cracker-like lump piece, and then crush the lump piece into a granule having a predetermined particle size and knead it. A method for producing a speckled pattern tile, characterized in that soil is produced, and the kneaded clay is dry-press-formed by a press-forming machine and fired. 2. A tile raw material in powder form is placed on a conveyor belt and transferred, dropped from the tip of the conveyor belt and continuously supplied toward a roll pressing machine below, while the powder is applied to the roll pressing machine. -Like pigments are directly and linearly dropped and supplied, and the tile raw material and pigment are pressed together by the roll press to form a rice cake-like lump piece, and then the lump piece is predetermined by a crusher. A method for producing a speckled pattern tile, which comprises crushing into a granular shape to produce a kneaded material, dry-press-molding the kneaded material with a press molding machine, and firing.