JP2743054B2 - Manufacturing method of printed 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 producing a printed tile by placing a dry powder on a tile green body, bringing the powder into close contact with water, and firing it.

[0002]

2. Description of the Related Art Generally, when producing a printed tile, a tile green body after pressure molding is baked at a temperature of about 800 to 1100 ° C. to increase predetermined strength and water absorption. Then, a mask is placed on the surface of the unglazed tile base material, and the paint is placed on the unglazed tile body and scraped out with a squeegee. That is, a predetermined pattern is formed by applying a paint to the surface of the unglazed tile substrate by screen printing. After that, glazes are applied as needed and fired to obtain printed tiles as products.

[0003]

As described above, in the conventional method of manufacturing a printed tile, since the pattern is applied by screen printing, it is inevitable that the unglazed tile and the mask come into contact with each other. Therefore, the unglazed tile body is not broken or damaged by the pressing force when the paint is scraped out by the mask and the squeegee.
A certain degree of strength was required, and the green tile body immediately after pressure molding could not be used as it was, and it was necessary to always perform unglaring.

[0004] Since the unbaking is indispensable as described above, a baking process for the baking is required, which requires a unbaking line and heat energy for baking, and further has a disadvantage that productivity is poor.

[0005] In the screen printing method, if the surface of the unglazed tile substrate has irregularities such as a relief pattern, a large amount of paint is applied to the concave portions, and the surface after application becomes smooth. For this reason, the conventional print tile manufacturing method using screen printing has a disadvantage that a relief pattern is not formed.

[0006]

SUMMARY OF THE INVENTION The present invention has been improved and eliminated in view of the above-mentioned problems, and is applicable to a tile blank immediately after pressure molding and a relief pattern. It is an object of the present invention to provide a method for manufacturing a printed tile.

Means adopted by the present invention to solve the above-mentioned problems is that a non-contact type glaze dry powder is placed on the surface of the tile green body, and mist-like water is applied to the dry powder. Is a method for manufacturing a printed tile, characterized in that the printed tile is adhered to a green body and then fired.

[0008]

According to the present invention, first, a dry powder of glaze is sprinkled on the surface of the tile green body immediately after pressing. This sprinkling may be performed by placing a mask at a position separated from the tile base by a predetermined distance upward, putting a dry powder of glaze previously granulated into the mask, and scraping it off with a squeegee or the like.

At this stage, the dry powder scraped off on the surface of the tile green body is not yet in close contact with the tile green body. Then, firing may be performed last.

According to the method of the present invention, since it is a non-contact type, a dry powder of glaze can be applied directly to the tile green body immediately after pressure molding, and the existing tile production line can be used as it is, It is possible to carry out from pressure molding to firing in a consistent manner.

In addition, even when the surface of the tile base is provided with irregularities such as a relief pattern, the relief pattern can be used as it is to apply a print pattern. It is possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The manufacturing method of the present invention will be described below with reference to the embodiments shown in the drawings. First, in the present invention, a dry powder of glaze is prepared in advance. The glaze dry powder is obtained by finely pulverizing raw material particles of the glaze and coating it with a resin material that disappears during firing.

[0013] The resin-coated glaze raw material particles are sieved and passed through a 225 mesh to remove angular particles and take out only round particles. Furthermore, the size of the particles actually used is 18
It is assumed that the mesh has passed through 0 mesh. This is to prevent clogging of the squeegee during actual use. The reason for the resin coating is to give the glaze dry powder itself smooth surface properties and slipperiness.

Next, a mask is arranged at a predetermined height position above the tile green body immediately after pressure molding discharged from the press die machine. Then, dry powder of the glaze prepared as described above is put into the mask, and this is scraped off with a squeegee. As a result, the dry powder of the glaze is sprinkled in a desired pattern shape on the surface of the tile green body while being non-contact type with the tile green body. In this state, the dry powder has not yet adhered to the tile green body.

[0015] Therefore, when the tile green body is moved as it is, the dry powder of the glaze is dissipated, or the pattern pattern of the glaze is broken, so that fine water of mist is sprayed on the surface of the tile green body. Make sure that the glaze dry powder adheres to the tile green body.

Thereafter, transparent glaze may be applied to the surface of the tile green body, if necessary, and then fired. During this firing, the resin material coated on the surface of the glaze particles of the dry powder disappears.

Thus, it is possible to manufacture a printed tile in which the pattern 3 is printed on the surface 2 of the tile 1 as shown in the plan view of FIG. 1 and the vertical sectional view of FIG. In addition, since the printed tile 1 is a non-contact pattern print, printing can be performed even when a relief pattern or the like is formed on the surface 2. In the printed tile 1 of this embodiment, as shown in FIG. 2, a printed pattern 3 is applied to a concave portion. The reason is that the relief pattern becomes clearer.

Incidentally, the present invention is not limited to the above-described embodiment, but can be appropriately changed. For example, a dry powder of glaze may be used by mixing a plurality of types, or may be divided into several times to form a printed pattern having a different type or pattern.
As the dry powder of glaze, any glaze such as mat glaze or bright glaze can be used. Further, the transparent glaze applied to the tile surface is for protecting the surface and preventing adhesion of dirt, and may be omitted.

[0019]

As described above, in the present invention,
On the surface of the tile green body, sprinkle a dry powder of glaze in a non-contact manner, spray fine water of mist to adhere the dry powder to the tile green body, and then fire it to obtain a printed tile. I have.

As described above, since the pattern is printed in a non-contact manner, it can be directly printed on the tile green body immediately after the pressure molding, and there is no need to unglaze the tile green body as in the related art. Therefore, there is no need for a baking facility or process for unglazing, and it is possible to perform integrated production from pressure forming to continuous baking using an existing tile production line, which is extremely excellent in productivity.

Further, since the printing method of the present invention is a non-contact type, printing can be performed even when a relief pattern or the like is formed on the tile surface. In this case, it is possible to manufacture a printed tile.

[Brief description of the drawings]

FIG. 1 is a plan view of a printed tile manufactured by the method of the present invention.

FIG. 2 is a longitudinal sectional view of a printed tile manufactured by the method of the present invention.

[Explanation of symbols]

 1 ... printed tile 2 ... tile surface 3 ... printed pattern

Claims (1)

(57) [Claims] 1. A non-contact type glaze dry powder is placed on the surface of a tile green body, sprayed with mist water to adhere the dry powder to the green body, and then fired. Manufacturing method of printed tile.