JPH02269008A - Decorating method of pottery basis material body - Google Patents

Abstract

PURPOSE:To form an uneven form pattern where a projected part or a hollow part is sharply pointed or depressed, by a method wherein the uneven form pattern is transferred to a molding side by pressing a transfer mold on the surface of the molding under a state where slurry is applied to the surface of the transfer mold. CONSTITUTION:A transfer mold 28 is pressed on the surface of a molding and an uneven form pattern is transferred to molding 20 side under a state where slurry 30 is applied to the surface of the molding 20 of a pottery basis material or the slurry 30 is applied to the surface of the transfer mold 28 possessing the uneven form pattern. In other words, since the slurry 30 possesses predetermined viscosity, the slurry 30 follows favorably after a form of the transfer mold 28 and it becomes a tendency that at the time when the transfer mold 28 is separated from the surface of the slurry 30, the transfer mold 28 is pulled to some extent with its own viscosity. With this construction, a sharp uneven form where a projected part and hollow part are pointed sharply is formed in a layer of the slurry with an uneven form of the transfer mold 28.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a decorating method for decorating the surface of a ceramic base such as a tile.

(Issues to be Solved by the Prior Art and the Invention) Conventionally, various methods have been used to decorate the surface of ceramic substrates such as tiles. One method is to press a transfer mold onto the surface of a ceramic base molded body and transfer the uneven pattern of the transcription mold to the side of the base molded body.

However, with this method, it is difficult to form a concavo-convex pattern in which the convex portions or four portions are sharply pointed or depressed, and the form of the pattern is naturally limited.

In addition, in this method, the uneven pattern is formed by pressing the transfer mold onto the base molded body and recessing a part of it, so it is difficult or impossible to apply it to a thin base molded body. There is a problem.

(Means for solving the problem) Undeveloped IJJ was developed in order to solve the above problem, and its gist is that when slurry is applied to the surface of a molded body of ceramic base, or when an uneven pattern is formed, The method is to press the transfer mold onto the surface of the molded object with a slurry applied to the surface of the transfer mold, thereby transferring the uneven pattern to the side of the molded object.

(Operation and Effects of the Invention) As described above, the present invention does not directly press a transfer die onto a green body formed body, but forms a layer of slurry on the surface of a green body formed body and uses the transfer die to shape the slurry surface into an uneven shape. It was designed to be formed as follows.

Since this slurry has a certain viscosity, it follows the shape of the transfer mold well, and when the transfer mold separates from the slurry surface, it tends to be pulled to some extent by its own viscosity, and as a result, the transfer Depending on the uneven shape of the mold, a sharp uneven shape with sharp protrusions and depressions is formed in the slurry layer.

Furthermore, according to the method of the present invention, since the raw j'tI molded body itself cannot be made to have multiple irregularities, it is possible to apply a concavo-convex pattern to a thin base molded body without the same problem. becomes. In this case, although the base molded body is thin, it is possible to form a pattern with a large difference in unevenness, thereby giving the surface of the base molded body a sense of depth and volume.

The slurry may be a base slurry having the same composition as the base molded body, or may be a glaze slurry or other slurry.

(Example) Next, an example of the present invention will be explained in detail based on the drawings.

In FIG. 3, IO is a thin ceramic plate, and an uneven pattern 12 is formed on its entire surface.As shown in FIG. It has a sharp or concave shape with small irregularities.

1 and 2 show an apparatus for molding this ceramic plate IO and applying a concavo-convex pattern 12 on its surface. In FIG. and molding die 1 attached to its tip.
8, and the ceramic plate 1 is inserted through the opening of the molding die 18.
0 molded bodies 20 are continuously extruded.

In this example, the extrusion forming device a114 is configured to extrude a ceramic plate horizontally.

Extrusion molding equipment! In front of the molded body 114, a metal plate 22 for supporting the back side of the molded body 20 and a decoration device 24 for applying an uneven pattern to the surface of the molded body 20 are arranged.

The decoration device 24 includes a slurry container 2 containing slurry 30 therein.
6, and a roller 28 serving as a transfer mold arranged horizontally below the roller. The roller 28 has a rotating shaft 32 extending from its axial center.
is rotatably supported by a bearing 34. Further, an uneven pattern corresponding to the uneven pattern 12 is formed on the surface of this roller 28, and as the roller 28 rotates, the slurry 30 in the slurry container 26 is lowered through an opening 36 (FIG. 3) at its lower end. 228 surface.

Next, the procedure and operation of forming a ceramic plate and applying an uneven pattern to its surface using this apparatus will be explained.

The molded body 20 continuously extruded from the molding die 18 at the tip of the extrusion cylinder 16 slides on the upper surface of the metal plate 22, passes under the roller 28, and is sent forward. When passing under the roller 28, the slurry 30 is applied to the surface of the molded body 20 in a pattern corresponding to the uneven pattern on the surface of the roller 28. At this time, the surface of the molded body 20 itself is made to have many layers of unevenness. Instead, only the slurry 30 applied on the kudzu is formed into an uneven shape.

Since the slurry 30 is in a predetermined moisture state and has viscosity, it is formed into a shape that accurately corresponds to the uneven shape of the roller 2B, and the surface of the roller 28 is
When it moves away from 0, it tends to be pulled upward to some extent by the roller 28 due to its viscosity, which causes the image to take on a sharply pointed shape. By controlling the viscosity of the slurry 30, it is possible to further promote or suppress this tendency. Generally, the desirable viscosity of mud IJj30 is 10,000 cP or more, and more preferably 50,000 cP or less.

The molded body 20 that has passed through the rollers 28 is then cut into a predetermined length, and then subjected to a drying and firing process to be manufactured into a product. Therefore, if a base slurry having the same composition as the base of the ceramic plate 10 is used as the slurry 30, the slurry 30 after firing is used.
becomes a part of the base material, and a concavo-convex pattern is formed on the surface of the base material. On the other hand, if a glaze slurry is used as the slurry 30, a glaze layer will be formed in an uneven shape on the ground surface. Incidentally, Figures 3 (A) and (B) show slurry 30
This figure shows a ceramic plate 10 obtained when using a composition consisting of 80% feldspar and 20% clay, and the uneven pattern 12 on its surface.

Although the embodiments of the present invention have been described in detail above, the present invention can be implemented in other embodiments.

For example, in clay figurines, after attaching slurry to the -H roller surface,
This is transferred to the side of the molded ceramic plate, but the slurry is not transferred to the surface of the molded ceramic plate! It is also possible to press a roller onto the surface of the fabric to transfer the uneven pattern.

In addition, it is also possible to use a molding method other than the extrusion molding method described above as a molding method for the ceramic base material, and it is also possible to use a flat plate-shaped transfer mold other than the roller mentioned above.
It is Noh.

In addition, the present invention includes, without departing from the spirit thereof,
It can be implemented in various modified forms based on the knowledge of those skilled in the art.

[Brief explanation of drawings]

FIGS. 1 and 2 are a perspective view and a side view (partially sectional view) showing an implementation state of the Kao method, which is an embodiment of the present invention, together with an implementation apparatus, and FIGS. 3 (^), (B) is a perspective view and a sectional view of a main part showing a ceramic plate obtained by the same method and an uneven pattern on its surface, respectively. lO: Ceramic plate 12: Uneven pattern 28: Roller
30: Slime patent applicant: Inax Co., Ltd.

Claims (1)

[Claims] With the slurry applied to the surface of the ceramic body molded body, or with the slurry applied to the surface of a transfer mold having an uneven pattern, the transfer mold is pressed against the surface of the molded body, thereby forming the uneven pattern. A method for decorating a ceramic base, which comprises transferring onto the side of the molded body.