JPH01171802A - Soft polyhedron tile and its manufacture - Google Patents

Abstract

PURPOSE:To form a non-uniformly shaped earthware and make it possible to improve its decorative and economic value, by slicing off a thin plate from soft potter's clay, bending it extempore by hand, rolling it under a specified pressure to a plate shape and calcining it. CONSTITUTION:A clay containing a moisture possible for pottery is sliced with the method for batting for example to a thickness of 3mm. The sliced thin clay plate is teared off with hand, the clay polyhedron 22 made by softening and bending the thin clay plate into a free form arbitrarily with hand is placed on a flat plate and pressed into a board with a roller or a press with a defined pressure. The pressed polyhedron is perfectly dried and baked at about 800 deg.C. After that, by glazing and calcining it at 1200-1300 deg.C, it is possible to make a free form extempore and arbitrarily.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a ceramic product having a unique shape obtained by firing ceramic raw materials such as clay (pottery clay) and feldspar (alumina), and a method for molding the same.

(Prior Art) Up until now, ceramic products such as ceramic tiles have generally been made by kneading china clay or clay with water, putting it into a predetermined mold or casting mold, and applying pressure to form a predetermined shape. was fired and molded. In these products, during or after forming the shape, a geometric pattern, a pattern of flowers, birds, wind, moon, etc., or other desired appearance is artificially applied to the surface of the product, if necessary.

(Problems to be Solved by the Invention) In conventional methods, surface patterns are formed based on artificial ideas. For this reason, today there is a lack of new and attractive architectural and other tiles, and there is a lack of originality in terms of decoration, and as a result, the uses and sales channels of the tiles themselves are gradually becoming narrower. The present invention overcomes these drawbacks.

(Means for Solving the Problems) In order to solve the above problems, the present invention aims to create a shape of a ceramic product such as a tile based on a completely artificial idea, for example, away from a geometric one, and instead using a purely natural form. It is formed depending on the That is, a thin plate of soft china clay is cut out and bent by hand on an impromptu basis, and then stretched with a roller using a predetermined pressure to form a plate, which is then fired as a ceramic tile. The shaping action caused by the movement of is the means for forming the pattern.

(Function) In the present invention, clay containing moisture that can be molded using the ceramic plate manufacturing method is cut into thin pieces, and at the same time the thin plates are peeled off by hand, they are improvised and randomly softened and bent to create a free shape. Shape. If necessary, this is rolled out with a roller to form a plate and the ceramic tile is fired.

(Example) Ceramic raw materials such as china clay and alumina are kneaded with water and put into a frame of a certain shape, for example, 40 am x 40 aa x 2.
Form a cube of 0am. Cubes of this clay containing moisture, which is possible with the pottery manufacturing method, are cut into thin pieces, for example, about 3 mm thick, using the Tatara-zukuri method. To form this slice-shaped clay thin plate, for example, as shown in FIG.
The clay cube 14 is placed in a frame 12 in which a plurality of thick U-shaped plates 10 are stacked with pins 16 at four locations, for example, using a U-shaped puller with a wire or fishing line 20 fixed to its tip. 18 is prepared, and the wire 20 is made to extend from the plate 10 to form a reference surface. Thereafter, only one uppermost plate 10 is removed and the upper part of the clay cube 14 is made to protrude from the frame 12. In this state, the clay is sliced with the puller 18.

It is important to manually peel off the sliced clay lamina and at the same time soften the clay lamina improvised into a free form (see Figures 2 to 5); this bending action is performed randomly. This is because if it is done artificially, it will not be possible to obtain a free polygon. The clay polygonal body 22 made in this way is placed on a flat plate, and a roller or press having a predetermined pressure force is applied to the clay polygonal body 22 to stretch the polygonal body into a plate shape.

The pressing force of this roller or press is not so great as to make the polygonal object a perfect flat plate, but it is sufficient to apply enough pressing force to at least make the sharp parts into smooth surfaces.

Next, this pressed polygonal surface was completely dried, and approximately 80%
Bisque firing is performed at 0℃. Then apply glaze.

As is well known, there are many types of glazes depending on the intended use of the product. After glazing, main firing is performed at 1200-1300°C.

Thereafter, if necessary, gold, platinum, or the like can be baked onto the polygonal body by an overglaze firing method. That is, the surface of the fired polygonal body is coated with ceramic gold (gold color), platinum (gi color), etc., and then fired at 800°C. In this case, if the base of the hon-yaki is glossy, both gold and silver will have light and luster. Such tiles can provide extremely unique decorative wall surfaces by being fixed with mortar to the walls of hotels, theaters, etc. (FIG. 1).Of course, such tiles can be formed with or without press working.

The tiles of the present invention are extremely innovative as ornaments. In this case, the tile may be solid or may be a stack of tiles (FIG. 7).

Furthermore, the tiles of the present invention are collectively shaped as polyhedrons, such as spherical, hemispherical, cylindrical, cubic, and other shapes. For this reason, when air and sound are passed through these curved surfaces, the sound is amplified or attenuated in some cases6, and when light is passed through, diffused reflection occurs in some cases, creating a new lighting device. Or generate a new light amplification/attenuation effect. In addition, even when heat is passed through, the polygonal mirror surface of the ceramic generates a heat absorption and diffusion effect. In other words, each tile has sound, light,
It exhibits unique characteristics against heat, etc., and no two are the same.

Therefore, the tiles of the present invention can be used as novel ornaments or on the walls of the hotels and theaters mentioned above, as well as in schools, government offices, etc.
It is extremely useful for golf courses, restaurants, station buildings, department stores, and other buildings where unique appearance, patterns, acoustic effects, light reflection effects, etc. are desired.

According to the present invention, clay thin plates are softened and bent into free shapes on an impromptu basis, so the resulting tiles all have different shapes, and even if the same procedure is followed at the same time, it is almost impossible to produce two tiles of the same shape. It's impossible.

Therefore, if you want to obtain a tile of the same shape, it is necessary to copy the pattern of the baked-on molded product onto a plaster mold and reproduce it. That is, when replicating a tile with the same pattern, the form of the above-mentioned fired and molded product is copied onto a plaster mold by a known method, and this is used as the master model, which is then pre-stamped with a tatara machine called Ceraroller. A plate of china clay rolled to a predetermined thickness is placed on the master model,
Roll it again with a cera roller and copy the above shape,
This is cut into a desired size and dried, and the dried base is fired at a temperature of 1100' to 1300°C to produce a duplicate tile.

The clay of the present invention is preferably 15 to 25% by weight of Hiruji clay, 5 to 20% by weight of pottery stone, and 15 to 25% by weight of Honbushi clay.
A mixture prepared at a blending ratio of 5 to 15% by weight of feldspar and 1% by weight of 15'-20 clay is used by grinding it with a tramill until the proportion of particles with a particle size of 20 μm or less becomes 80% or more.

(Effects) The present invention forms china clay products that always have non-uniform shapes. Therefore, the unique shape of the appearance makes the product attractive, increases its decorative value, and increases its economic value.

The present invention also provides a ceramic product having a shape that cannot be reproduced in principle and is formed at a low cost using an extremely unique method that eliminates patterns based on artificial ideas and relies on purely random improvised shaping action. Can be provided.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of the equipment for forming the clay thin plate of the present invention, Figs. FIG. 7 is a diagram illustrating a tile block consisting of a plurality of tiles according to the present invention. 14: Clay cube 22: Polysoft surface patent applicant
Mino Ceramics Co., Ltd. (Outside 1 Outside 2 Figure 6 Figure 7)

Claims (3)

[Claims] (1) Forming a thin plate from a ceramic raw material containing water that can be molded according to the ceramic plate manufacturing method, softening and bending the thin plate randomly and improvised to form a polyhedron, and drying the polyhedron. A method for producing a polyhedral tile comprising the steps of post-bisque firing, applying glaze to the unglazed polyhedral and main firing. (2) Forming a thin plate from a ceramic raw material containing water that can be molded according to the ceramic plate manufacturing method, softening and bending the thin plate randomly and improvised to form a polyhedron, and pressing the polyhedron. A method for manufacturing a polyhedral tile, comprising the following steps: drying the pressed polyhedral and then biscuiting it, applying glaze to the unglazed polyhedral and firing it. (3) A polyhedral tile made by randomly and improvisedly bending and firing a thin plate made of ceramic raw material by hand.