JPH0919912A - Braid-like patterned tile and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tile wherein a braid-like pattern is clearly decorated on a tile surface, and its manufacturing method. SOLUTION: A principal material 4 composed of a material having a specific burning rate is filled into a molding tool. A braid like body material 5 which is composed of a material of the same burning shrinkage rate as that of the principal material 4, or a smaller burning shrinkage rate than that, or a material which inflates by burning, is scattered on a surface of the principal material, which is compression molded. The compression molded compact 7 is burnt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tile having a string-like pattern formed on its surface in a two-dimensional or three-dimensional manner and a method for manufacturing the tile.

[0002]

2. Description of the Related Art Conventionally, as a method of decorating a tile surface, a method of mixing a plurality of types of granular raw materials with a tile main raw material and press-molding the tile main raw material, filling the mold with the tile main raw material, Method of spraying other powder material for decoration, pressure molding, method of spraying wet pongee on the surface of tile green substrate, screen printing of wet pongee on surface of tile green substrate, tile of dry pongee The method of spraying on the surface of the green body is adopted.

[0003]

As the pattern on the tile surface, it is sometimes desired that the boundary between the surface of the tile main raw material and the pattern forming raw material is clearly divided to clearly express the pattern.

However, in the above-mentioned conventional tile manufacturing method, it is difficult to clearly show a pattern on the tile surface after the tile is fired. Therefore, it is an object of the present invention to provide a tile in which a string-like pattern is clearly expressed in a plane or three-dimensionally on the tile surface and a method for manufacturing the tile.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and the invention according to claim 1 is a cord-shaped body formed from a raw material other than the tile main raw material into a short cord shape. (5
e) is a string-shaped tile in which the surface is exposed and embedded and fixed in the tile main body (4b).

In the present invention, since the preformed string-like body (5e) is buried in the tile main body (4b) with its surface exposed, the string-like body (5e) and the tile main body (4e) are formed.
The boundary with b) becomes clear and the tile has a clear string-like pattern.

The invention according to claim 2 is a mixture of plural kinds of string-like bodies (5e) according to claim 1, such as one having a different sectional shape, one having a different length, and one having a different color. It is a string-like pattern tile characterized by having done.

In the present invention, the design effect is enhanced by mixing a plurality of types of string-like bodies (5e). In the invention according to claim 3, the main raw material (4) is composed of a material having a constant firing shrinkage ratio, and after filling this in a mold, a material having the same or substantially the same firing shrinkage percentage as the main raw material (4). The raw material (5) for the cord-like body, which has been molded into a short string with the above, is sprinkled on the surface of the main raw material (4), compression-molded, and then the molded body is fired to produce the raw material (5) for the cord-like body. ) The string-like body (5
e) is a method for manufacturing a string-shaped tile, wherein a string-shaped pattern is formed on the tile surface.

In the present invention, the cord-shaped raw material (5) which has been formed in advance is buried so that the surface thereof is exposed on the surface of the main raw material (4), and the cord is pressed and fired. The boundary between the string-like body (5e) fired with the material (5) and the tile main body (4b) becomes clear, and a clear string-like body pattern is formed. Furthermore, since the main raw material (4) and the cord-shaped material (5) have the same firing shrinkage, the surface of the cord-shaped body (5e) after firing is the same as the surface (4a) of the tile main body (4b). Become.

According to a fourth aspect of the present invention, the main raw material (4) is composed of a material having a constant firing shrinkage ratio, which is a material that expands during firing after being filled in a mold and has a melting point higher than that of the main raw material. A raw material (5) of a cord-like body, which is formed into a short string by a material having a low content, is sprayed on the surface of the main raw material (4), compression-molded, and then the molded body is fired to obtain the above-mentioned cord-like body. A method for producing a string-shaped tile, characterized in that a three-dimensional string-shaped pattern is formed by bulging a part of the string-shaped body (5e) fired with the raw material (5) on the tile surface.

In the present invention, the string-like body (5e) forms a clear string-like pattern similarly to the operation of the invention of claim 3, and the string-like body raw material (5) expands during firing, The surface side part bulges from the surface of the tile main body (4b).

The invention according to claim 5 is a plurality of types of raw materials (5) according to claim 3 or 4, such as those having different sectional shapes, different lengths, different colors, etc. It is a method for manufacturing a string-shaped pattern tile, which is characterized by using mixed materials.

In the present invention, the design effect is enhanced by mixing a plurality of types of string-like bodies (5e). Claim 6
According to the invention described in the above, the cord-like material (5) according to claim 3 or 4 or 5 extrudes a kneaded material in which a binder imparting viscosity and flexibility is mixed into the material in a linear or curved shape from a mold. It is a method for producing a string-shaped tile, which is formed, cut into a length within a range of 10 mm to 50 mm, and then dried by heating to be solidified.

In the present invention, the cord-shaped raw material (5) in the above claims can be easily produced, and various cord-shaped raw materials (5) can be produced by using various nozzles of the mold.

[0015]

Embodiments of the present invention will be described below with reference to the tables and the drawings. 1A to 1D show a molding process of a tile base (compression molded body). First, the molding process will be described. A well-known mechanism is adopted as the raw material filling mechanism, the raw material pressurizing mechanism, and the like, and a description of this mechanism is omitted.

First, as shown in FIG. 1A, a predetermined amount of tile main raw material 4 is filled in a space 3 formed by a lower mold 1 of a mold and a mold 2. Next, as shown in FIG. 1B, the cord-shaped material 5 is sprayed on the surface of the main material 4 in a fixed pattern or irregularly. The cord-shaped raw material 5 is formed of a material described later into a cord having a desired size.

Next, as shown in FIG. 1 (c), the surface side of the main raw material 4 of the tile is pressed at a unit pressure of about 200 to 350 kg / cm ² by a pressing die 6 having a flat pressing surface (mold surface). The pressure is applied to compression-mold the main raw material 4 and the string-shaped raw material 5 of the tile. Since the layer of the main raw material 4 is soft at the initial stage of pressurization, the cord-shaped raw material 5 molded to a predetermined hardness is embedded in the main raw material 4 with its surface exposed. After the pressure molding, as shown in FIG. 1C, the surface of the main raw material 4 and the surface of the cord-shaped raw material 5 are in the same plane.

Then, the above compression molded body (tile base material)
Is removed from the mold. The compression molded body 7 taken out is shown in FIG.
It shows in (d). Next, the main raw material 4 and the cord-shaped raw material 5 of the tile will be described.

First, the above-mentioned main raw material 4 has a constant firing shrinkage, and the cord-shaped raw material 5 also has the same or substantially the same firing shrinkage as the main raw material 4, and the cord-shaped raw material 4 in the tile after firing.
Table 1 shows the components of each raw material in the case where the surface of the above is the same as the surface of the tile. The main raw material used in this case is A
And the raw material component of the cord-like body is B.

[0020]

[Table 1] Further, 0.5% as an external addition amount of a pigment is added to each of the above components A and B. An example of the components and proportions of this pigment is shown in Table 2 below.

[0021]

[Table 2] Table 3 below shows the firing shrinkage, linear thermal expansion coefficient, and fire resistance (melting point) of the main raw material component A and the cord-shaped raw material component B.

[0022]

[Table 3] Next, one example of the method for producing the above-mentioned cord-shaped material 5 will be described. 1 to 5% of an acrylic emulsion is added as a binder for imparting viscosity and flexibility to the slurry of the material obtained by adding the pigment of Table 2 to the component B of Table 1 above, and the mixture is stirred, and then the dehydrated dough is extruded from the extruder. More extruded into a straight line or curved line. For the cross-sectional shape of the cord-shaped material 5, the nozzle of the extruder is used, the opening surface of which has a circular shape, a square shape, and various diameters.
Raw material 5 having a circular cross section with a relatively large diameter as shown in FIG.
2a, or a raw material 5b having a small diameter circular cross section as shown in FIG. 2B, or a raw material 5c having a rectangular cross section as shown in FIG. 2C. Further, the length of the cord-shaped material 5 in the axial direction is to be cut into a desired length after extrusion molding, and is set to a desired length within a range of 10 mm to 50 mm, for example.

After cutting, by heating and drying, the solidified string material 5 is obtained. Further, when the cord-shaped raw material 5 is sprayed on the main raw material 4, those having different cross-sectional shapes, diameters, lengths and colors, and those bent as shown in the figure,
Various cord-shaped body raw materials 5 are prepared, these are mixed as desired, and sprayed in a fixed pattern or irregular state.

Next, the firing of the molded body (tile base) 7 and its function will be described. The molded body 7 molded as described above is heated to 1200 to 13 by a firing device such as a tunnel kiln.
Bake at a high temperature of 00 ° C.

At this time, when the main raw material component A and the cord-shaped raw material component B are used, the main raw material 4 and the cord-shaped raw material 5 are sintered and contract at the same contraction rate. Therefore, the cord-shaped material 5 is embedded in the main material 4 in the state at the time of compression molding, that is, in the state where the surface 5d is flush with the surface 4a of the main material 4, as shown in FIG. 1 (e). By sintering and firing, both raw materials 4 and 5 are melted and fixed integrally.

The tile 8 thus fired is shown in FIG.
(E) and FIG. Then, the string-like body 5e formed from the string-like material 5 by firing is embedded so that the boundary with the tile main body 4b formed from the main material 4 by firing is clear, as shown in FIG. 1 (e). As shown in FIG. 3, the pattern formed by the string-like body 5e becomes a clear string-like pattern without blurring the boundary with the tile main body 4b.

Next, the main raw material 4 has a constant firing shrinkage, and the firing shrinkage of the cord-like raw material 5 is set to be smaller than the firing shrinkage of the main raw material 4. 5
Table 4 below shows an example of the components and ratios of the respective raw materials in the case of projecting from the tile surface. The component of the main raw material 4 is the same as that in the above case, and is A, and the component of the cord-shaped raw material is different from the above, and is C.

[0028]

[Table 4] Further, 0.5% as an external addition amount of the same pigment as in Table 2 is added to each of the main raw material component A and the cord-shaped raw material component C.

The firing shrinkage, linear thermal expansion coefficient, and fire resistance (melting point) of the main raw material component A and the cord-shaped raw material component C are shown in Table 5 below.

[0030]

[Table 5] The main raw material 4 made of the main raw material component A and the cord-shaped raw material 5 made of the cord-shaped raw material component C are compressed in the same manner as in the compression step shown in FIG. 1, and the cord shown in FIG. Raw material 5
A compression molded body (tile base) 7 whose surface is the same as the surface of the main raw material 4 is molded. Then, the molded body 7 is heated to 1200 ° C. to 1300 ° C. by a firing device such as a tunnel kiln.
Bake at high temperature.

During this firing, the main raw material 4 sinters and shrinks a certain amount, but the firing shrinkage of the cord-shaped raw material 5 is the main raw material 4.
Is smaller than the firing shrinkage of the cord-shaped material, the surface side portion thereof is extruded onto the surface of the main material 4 by the contraction action of the main material 4 in the process of melting and softening the cord-shaped material 5, The surface of 5 protrudes from the surface of the main raw material 4, and when the melted and softened cord-shaped raw material 5 solidifies, the surface of the protruding portion becomes spherical due to surface tension.

The height of protrusion of the cord-shaped raw material 5 from the main raw material surface is determined by the firing shrinkage of the main raw material 4, the diameter of the cord-shaped raw material 5, and the firing shrinkage. The tile 9 thus fired is shown in FIGS. 4 and 5. Then, the fired string-shaped body 5e is embedded so that the boundary with the fired tile main body 4b is clear as shown in FIG. 4, and as shown in FIG. The border with the main body 4b is in a clear state without blurring, and has a three-dimensional string-like pattern protruding from the surface 4a of the tile main body 4b.

Next, the case where the main raw material 4 has a constant firing shrinkage and the raw material 5 is expanded during firing to form a three-dimensional pattern similar to that shown in FIGS. 4 and 5 will be described. You

Table 6 shows an example of the components and ratios of each raw material in this case. In this example, the main raw material 4 was made to have the same proportion as the main raw material component A in Table 1 and the raw material component of the cord-shaped body was changed.

[0035]

[Table 6] It should be noted that the pigments similar to those in Table 2 above are also added to the main raw material component A and the cord-shaped raw material component D as an external addition amount of 0.5%.

The main raw material 4 composed of the main raw material component A and the cord-shaped raw material 5 composed of the cord-shaped raw material component D are compressed in the same manner as in the compression step shown in FIG.
Baking at a high temperature of ℃ ~ 1300 ℃.

At the time of this firing, the surface of the raw material 5 protrudes from the surface 4a of the main raw material 4 due to self-expansion of the raw material 5, and the protruding portion becomes spherical due to its surface tension. Therefore, a three-dimensional string-like pattern similar to that shown in FIGS. 4 and 5 is formed.

[0038]

As described above, according to the invention described in claim 1, it is possible to provide a tile having a clear string-like pattern with a clear boundary with the tile main portion.

According to the second aspect of the invention, the tile surface can be further decorated with various string-like patterns, and the design effect can be enhanced. According to the invention of claim 3, it is possible to manufacture a tile in which a clear string-like pattern having a clear boundary with the tile main body is decorated on the same surface as the surface of the tile main body.

According to the fourth aspect of the present invention, it is possible to manufacture a tile in which a clear string-like pattern having a clear boundary with the tile main body is swollen from the surface of the tile main body and decorated. Claim 5
According to the described invention, tiles that can be further decorated with various string-like patterns can be manufactured.

According to the invention described in claim 6, the above-mentioned cord-shaped material can be easily manufactured.

[Brief description of the drawings]

FIG. 1 shows a manufacturing process of the present invention.
(C) is a compression process, (d) is a compressed compact, (e)
Is a cross-sectional view showing the tile after firing.

2A to 2C are perspective views showing three kinds of cord-shaped body raw materials.

FIG. 3 is a perspective view showing a tile after firing.

FIG. 4 is a side sectional view of a tile in which a string-shaped body is swollen.

FIG. 5 is a perspective view of the same.

[Explanation of symbols]

1, 2, 6 ... Mold 4 ... Main raw material 4a ...
Surface 4b ... Tile-based 5 ... String-shaped raw material 5d ... Surface 5e ... String-shaped body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiro Asai 2322 Hirohata, Kakino, Tsuruzato-cho, Toki City, Gifu Pref.Kamano Plant, Inc.

Claims (6)

[Claims] 1. A string-shaped tile, wherein a string-like body formed of a material different from the tile main material in the form of a short string is exposed and has its surface exposed and is mainly fixed to the tile body. 2. The cord-like pattern according to claim 1, wherein a plurality of types of cords, such as those having different cross-sectional shapes, those having different lengths, those having different colors, are mixed. tile. 3. The main raw material is composed of a material having a constant firing shrinkage rate, and after being filled in a molding die, a cord formed into a short string with a material having the same or substantially the same firing shrinkage rate as the main raw material. After spreading the raw material of the filamentous material on the surface of the main raw material and compression-molding the raw material, the compact is fired to form a cord-like pattern on the tile surface by the cord-like body fired with the raw material of the cord-like body. A method of manufacturing a string-shaped tile, comprising: 4. The main raw material is composed of a material having a constant firing shrinkage ratio, and is filled in a molding die and then formed into a short string-like material which is a material that expands during firing and has a lower melting point than the main raw material. The cord-shaped raw material is sprayed on the surface of the main raw material, after compression-molding this, the molded body is fired, and a part of the cord-shaped body fired with the cord-shaped raw material is placed on the tile surface. A method for producing a string-shaped tile, comprising bulging to form a three-dimensional string-shaped pattern. 5. The raw material for a cord-like body according to claim 3 or 4, wherein a plurality of types of materials such as those having different cross-sectional shapes, those having different lengths, and those having different colors are mixed. A method for manufacturing a string-shaped tile. 6. The raw material for the cord-like body according to claim 3, 4 or 5, wherein a kneaded material in which a binder for imparting viscosity and flexibility is mixed in the material is extruded in a linear or curved shape from a mold, A method for producing a string-shaped tile, which is obtained by cutting this into a length within a range of 10 mm to 50 mm, followed by heating and drying to solidify.