JP2996374B2 - Pattern tile and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is applied to floors of bathrooms, washrooms, sidewalks of parks, shopping streets, etc., or applied to interior and exterior wall materials of buildings to form multicolor patterns. The present invention relates to a pattern tile having no glaze and a method for manufacturing the same, and more particularly to a pattern tile which retains an initial clear pattern even after prolonged wear.

[0002]

2. Description of the Related Art Conventionally, as a method of obtaining a pattern in an unglazed tile, a streak or unevenness is formed on the tile surface.
Alternatively, there is a method of dispersing rock powder and colored tile powder in a tile base to obtain a spot pattern, but these methods are all unsatisfactory in terms of decoration. Also, as a method of applying a pattern, there is a tile in which a printing pattern or a hand-printed pattern is applied to the surface of a green body or a sintered tile, but the thickness of these patterns is about 0.1 to 0.3 mm. In the case of floor tiles, etc.,
When wet with water, it is slippery and dangerous, so the field of use is limited.

In order to solve these drawbacks, Japanese Patent Publication No. 50-20962 discloses a technique for manufacturing a multicolor tile in which a multicolor powder pattern is embedded at a thickness of 3 mm on the surface of the tile. Further, as a method of improving and developing this, Japanese Patent Publication No. 42423/1990 discloses a method of manufacturing a ceramic article having an inlay-shaped decorative surface.
No. 05 and Japanese Patent Application Laid-Open No. 2-241703 disclose a technique of a method for manufacturing an inlaid tile. In these inlaying methods, a pre-prepared pattern is embedded in a substrate and sintered, so that an unglazed tile having various patterns with a thickness of about 3 mm can be obtained.

[0004]

As described above, inlaid tiles are excellent as non-glazed tiles used for conventional floors, sidewalks and the like, in view of the variety of patterns and thickness.

However, in order to obtain an elaborate boundary between the pattern and the substrate by the inlay method, it is necessary to control the density and shrinkage of the pattern material to be embedded, pellets and powder, the compression density of the concave portion of the substrate to receive the material, and the like. Is important, and if not managed, a gap is generated at the boundary. In general, the inlaying method requires three presses at two times, which is troublesome in manufacturing, and has disadvantages such as an increase in manufacturing cost.

The technique described in the above-mentioned Japanese Patent Application Laid-Open No. 2-241703 discloses a technique in which a base tile is pre-pressed and formed with a pressure enough to maintain the shape, a recess is formed at the same time, and an inlaying pellet is fitted and mounted in the recess. Alternatively, after the base tiles and the inlaying pellets separately pre-press-molded in a flat state of the base tiles are arranged and arranged, the whole is press-molded, and the inlaid tiles thus obtained have the required strength by firing. With no gaps generated at the boundaries, the flow of the different-colored clay at the time of press forming is small, and the boundaries between the inlaid pattern portion and other regions can be sharpened. However, the technique disclosed in Japanese Patent Application Laid-Open No. 241703/1990 requires a lot of time and effort to produce a base tile having a concave shape, and the process is complicated.

Therefore, according to the present invention, an arbitrary pattern can be formed by a simple process without generating a gap at a boundary portion, and the pattern can be formed even when the surface is worn due to long-term use on a floor, a road, or the like. It is an object of the present invention to provide a non-glazed pattern tile which does not fade or disappear and is not slippery even when wet with water, and a method for producing the same.

[0008]

Means for Solving the Problems According to the invention of claim 1
The pattern tile is obtained by arranging a partition plate material in a pressing mold,
Each in multiple forming spaces formed by partition plate material
After filling the colored powder of different colors, the partition plate material is removed.
And then backing powder from the top of the filled colored powder
After filling the granules, press molding, firing, and
And polishing the surface of the colored powders of different colors
It is.

[0009] The pattern tile according to the second aspect of the present invention is a pattern tile.
After filling the backing powder into the pressing mold, the partition plate
It is disposed in the pressure forming die and formed by the partition plate material.
Above the filled backing powder granules in the plurality of formed molding spaces.
After filling the colored powder particles of different colors from the
The partition plate material was removed, and then the pressure was integrally formed and baked.
And then polishing the surface on the side of the colored powders of different colors
It is made.

[0010] The production of a patterned tile according to the invention of claim 3
The method consists of disposing the partition plate material in the pressing mold.
Setting step, and after disposing the partition plate material, the partition plate material
Therefore, different colors of clothes are
A colored powder / particle filling step of filling the colored powder,
After filling the colored powder in the mold, the pressure
Plate material removal process to remove the partition plate material from the
After removal, for backing from the top of the filled colored powder
Backing powder filling process for filling powder and granules, and pressing mold
The colored powder and the backing powder filled in the
Pressure forming process for forming by pressing
A firing step of firing the lock body, and the colored powder particles of different colors
Polishing the body-side surface.

[0011] The production of a patterned tile according to the invention of claim 4
The method is for backing to fill backing powder and granules in a pressure mold.
A powder filling step, and after filling the backing powder,
Partition plate disposed step of disposing the Setsuban material in the compacting mold
And, after disposing the partition plate, by the partition plate
The backing powder particles filled in the formed plurality of molding spaces.
Dresses filled with colored powders of different colors from the top of the body
Color powder and granule filling step, and coloring powder and granules in the pressing mold
After filling, remove the partition plate material from inside the pressure forming mold
Partition plate removal process and pressure forming after removing the partition plate material
The backing powder and colored powder filled in the mold are integrated
Press forming process to press forming and press forming
A firing step of firing the block, and the colored powder of different colors
Polishing the surface on the side of the granules.

Here, the colored powdery granules are feldspar, porcelain clay,
Kaolin, clay, etc., the same materials as ordinary tiles as raw materials, and to this, a pigment for coloring, an organic binder, and water are added,
It is obtained by mixing and pulverizing using a tron mill or the like to form a slurry, and then granulating the mixture to a predetermined moisture content using a spray dryer or the like. The particle size is desirably 20 to 50 mesh. The colored powder may be in the form of powder, but a granulated powder having a predetermined moisture content has good workability and is suitable for mass production. This is because there is an advantage that there is no color unevenness and the entire surface of the pressing mold is slick.

As pigments used for coloring, chromite,
In addition to natural pigments such as loess, chromium oxide, iron oxide, Mn-
A kneading pigment such as Al pink can be used, and its addition amount is usually 2 to 3%.

[0014] Further, the backing powder or granule has a purpose of reinforcing to prevent a crack at a joint portion between the partition plate material on the tile surface and the coloring powder or granule. It is best to use the same granulated powder as the body. However, since the portion filled with the backing granular material does not appear on the surface, other materials may be used as long as the joining force and the shrinkage can be adjusted. For example, a material in which a melting point and a shrinkage ratio are adjusted by mixing silica stone or the like with a waste such as a crushed fine powder of a tile waste material or a waste mud dry powder of sewage treatment as a main raw material can be used. In this case, resources are reused.

As the organic binder, cellulose ethers such as MC (methylcellulose), CMC (sodium carboxymethylcellulose), ethylcellulose and benzylcellulose, or synthetic resins can be used.

The sintering after the pressure molding is performed in accordance with the manufacturing conditions of general non-glazed tiles. The pattern tile obtained by firing can be given a gloss by appropriately polishing the surface.

[0017]

According to the first aspect of the present invention, the partition plate is placed in the pressure forming mold in advance, and the molding space on both sides thereof is filled with the colored powder and granules, and then the partition plate is removed. Due to molding, a small amount of colored powder particles flow over the boundary during pressure molding, so that the boundary line is slightly blurred, but a multicolor pattern can be easily formed. At the same time, the bonding property between the colored powders of different colors is good, and it is possible to reliably prevent the boundary portion from peeling off after firing and cracking. Further, even if the tile surface is worn out due to long-term use, the pattern does not fade or disappear, and the same pattern as in the initial stage can be displayed. And since it is baked after filling and press-molding the colored powder, the overall strength and surface hardness are improved, and the abrasion of the surface is suppressed. Furthermore, since each dried powder has good fluidity at the time of filling, it is easy to handle and suitable for mass production. Furthermore, the patterned tile obtained by firing has a polished surface, so that it has luster. In addition, from the top of the filled colored powder, for backing
Because the powder is filled with powder, each colored powder
By joining with the granules, the different colored powders
In addition to increasing the bonding strength, preventing its separation,
Filling each molding space creates irregularities
Flatten the filling surface of colored powder, which is easy to
Make it easier to stabilize. And cheap material for backing powder
If used, the cost of the entire tile is reduced.

According to the second aspect of the present invention, since the colored powdery granules are filled from above the filled backing powdery granules,
In the same manner as in the first aspect, the backing powder particles are joined to the respective colored powder particles from the back surface side, so that the bonding strength between the different colored powder particles is further increased, and the peeling thereof is prevented. If an inexpensive material is used for the backing powder, the cost of the entire tile can be reduced. Furthermore, the patterned tile obtained by firing has a polished surface, so that it has luster.

According to the third aspect of the present invention, since the partition plate is disposed in the pressure forming die and then the molding space is filled with the colored powder, the pattern can be formed by a simple operation. Simultaneous filling of different colored powders is possible. Furthermore, the pattern tile obtained by firing, the surface
By the polishing step, it becomes glossy. So
In particular, since a backing powder / particles filling process is provided,
Pattern tile reinforced by hitting
It can be easily manufactured. In addition, coloring powder
After that, the filling process for the backing powder was established.
And flatten the filling surface of the colored powder to reduce the tile thickness.
Make it easier to stabilize.

According to the fourth aspect of the present invention, since the backing powder / particles filling step is provided, similarly to the third aspect , the patterned tile reinforced by the backing can be easily manufactured by a series of steps. . Furthermore, the patterned tile obtained by firing becomes glossy by the step of polishing its surface.

Here, the different color pattern can be formed by filling different colored powders of a single color into the molding space of the pressing mold, respectively. It can also be formed by mixing and dispersing granules and filling them with spotted colored powder granules. When the speckled colored powder is filled, it gives a unique faint appearance and makes the boundary part slightly indistinct even if it is slightly unclear.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a front view of a pattern tile according to an embodiment of the present invention.

In the figure, a pattern tile 1 is an unglazed tile having a size of 100 mm square, and a light black portion 2 is provided on the outside.
It has a pattern in which the light red portion 3 is formed in the inner circular portion. The light black portion 2 and the light red portion 3 are made of the same raw material, mixed with different pigments, and integrally fired. Also,
A backing layer is formed on a back surface (not shown).

The manufacture of the pattern tile 1 was performed as follows.

FIG. 2 is a process diagram showing a process of manufacturing a patterned tile according to one embodiment of the present invention, FIG. 3 is a perspective view of a partition plate used in manufacturing a patterned tile according to one embodiment of the present invention, and FIG. FIG. 5 is a cross-sectional view of a press-molding die showing a state after the colored powder particles are filled in the colored powder particles charging step of FIG.
FIG. 6 is a schematic view of an apparatus for producing a colored powder used in the step of filling the colored powder, and FIG. 6 is a press molding showing a state after the filling of the powder for the backing in the powder filling step of the back shown in FIG. It is sectional drawing of a type | mold.

First, in a partition plate material disposing step A, as shown in FIG. 3, a partition plate material 4 made of a thin steel plate having a plate thickness of about 1 mm is used.
Was created according to the pattern. The partition plate member 4 has a rectangular frame-like shape having a height of 10 to 12 mm, which is in contact with a ring plate-shaped boundary portion 5 having a height of 10 to 12 mm, which forms a boundary of a multicolor pattern, and an inner wall of a pressing mold described later. The outer wall 6 is integrally formed, and a handle 7 is attached to an upper end thereof. The outer wall portion 6 is provided to hold the boundary portion 5 for forming the boundary at a predetermined position. However, depending on the pattern to be formed, only the inner boundary portion 5 may be used. Also,
The thickness of the partition plate 4 is preferably thin to make the boundary as clear as possible. However, if the thickness is too small, the partition plate 4 may be deformed at the time of disposition and removal, or at the time of filling of granular material described later. Therefore, it is necessary to set in consideration of this point. The lower end of the partition plate 4 can be chamfered to be tapered.

After the partition plate 4 has been prepared, the partition plate 4
Was placed on the bottom surface of the pressing mold 11 shown in FIG.

On the other hand, in the colored powder / particle filling step B, first, colored powder / particles for forming a colored portion were prepared. The colored powder is 2% black pigment for kneading and 0.5% CMC on a tile base made of 50% feldspar, 20% clay, and 30% clay.
% And water were added. This was mixed and pulverized in a tron mill 21 shown in FIG. 5 to obtain a slurry 22, which was then pumped up to a spray drier 24 by a pump 23, dried and granulated by the spray drier 24 to obtain 20 to 50 mesh. To give a pale black colored powder. The light black colored powder was stored in the storage / supply box 25. Similarly, 3% of a red pigment for kneading is added to the tile base material, and the same operation is performed to obtain a light red colored powdery granule, which is stored in another storage / supply box 26.
Was stored. These colored powders were adjusted to have a moisture content of about 7% by adjusting the drying conditions. The material supply means used in the colored powder and granular material filling step B may be directly supplied from the measuring means, or may be uniformly supplied to a predetermined wide area by a robot or the like.

After the adjustment as described above, the light black and light red colored powdery granules were filled into the pressure forming die 11 in which the partition plate member 4 was disposed. In this filling, first, the depth formed by the lower mold 13 and the side mold 14 is 10 to 1 in a state where the upper mold 12 is raised in the pressure mold 11 of FIG.
Out of the 2 mm molding space, the outer molding space 15 surrounded by the boundary portion 5 and the outer wall portion 6 of the partition plate 4 was filled with light black colored powder particles to a height of 7 to 8 mm by a feeder (not shown). . At this time, care was taken so that the light black colored powder particles did not enter the inside molding space 16 in the boundary part 5 of the partition plate member 4, and if they were mistakenly introduced, they were removed by suction.

Next, a light pink colored powder is placed in the inner molding space 16 in the same manner as the light black colored powder by 7 to 8 mm.
Up to the height. Conversely, the filling of the light black and light red colored powder particles may be performed first, or the light red colored powder particles may be filled at the same time.

After the colored powdery granules were filled, the handle 7 attached to the upper end of the outer wall 6 of the partition plate 4 was removed from above in a partition plate removal step C by removing it. As a result, in the boundary portion, a small amount of the light black colored powder and the light red colored powder flowed and mixed into the other colored powder beyond the boundary line. When the colored powder particles flow and mix, the boundary part becomes slightly unclear, but the bonding strength between the different colored powder particles is improved.

In the backing powder / particle filling step D, the same tile base as that of the light black and light red colored powders is used in advance, and the pigment powder is added without adding a pigment. By performing the same operation, a backing powder or granules, which are uncolored base particles, was prepared and stored in the storage / supply box 27 for the backing powder or granules. Then, the backing powder / particle molding space 17 formed above the pale black and light red colored powder / particles already filled with the backing powder / particles was filled up to the same height as the upper surface of the side mold 14.

Next, in the pressure molding step E, the pressure molding die 11
100 kg of each colored powder and powder for backing
Press molding was performed at a pressure of / cm ² . At this time, although not shown, the pressing surface at the bottom of the upper mold 12 is formed as an uneven surface with a constant width, so that the uneven back foot for increasing the adhesive strength is simultaneously formed on the back surface of the pattern tile 1. can do.

Thereafter, in the firing step F, the block formed by pressing in the pressure forming step E is inverted, and a firing temperature of 12
The firing was performed at 50 ° C. for a firing time of 30 hours. By baking, the pattern of the light black part and the light red part shown in FIG. 1 was formed on the front side, and the unglazed pattern tile 1 with a thickness of 6 to 7 mm, which was lined with the uncolored porcelain on the back side, was obtained. .

Thus, the pattern tile of the above embodiment is
After disposing the partition plate member 4 in the pressure forming die 11, the outer black space 15 and the inner molding space 16 formed by the partition plate member 4 respectively have light black colored powder particles and light red colored powder particles. After the partition plate material 4 is removed, the backing powder is filled from above the filled colored powder, and is integrally press-molded and fired.

Therefore, according to the above embodiment, the partition plate 4 is disposed in advance in the pressure forming die 11, and the molding spaces on both sides thereof are filled with the colored powder and granules, and the partition plate 4 is removed.
Since the backing powder is filled and pressure-formed, a small amount of colored powder flows over the boundary during pressure-forming, so that the boundary line is slightly blurred, A multicolor pattern can be easily formed, and the bonding property between the light black colored powder and the light red colored powder is improved. Can be reliably prevented.

Further, even if the tile surface is worn out due to long-term use, the pattern does not fade or disappear, and the same pattern as in the initial stage can be displayed.

Further, by bonding the backing powder material to each of the colored powder particles from the back side, the bonding strength between the light black colored powder particles and the light red colored powder particles is likewise increased. In addition, the filling surface of the colored powdery material, which tends to become uneven by filling each molding space, can be flattened, and the tile thickness can be easily made constant.

Since the colored powder and the backing powder are filled, pressed, and then baked, the overall strength and surface hardness can be improved, and wear on the surface can be prevented.

Further, since each dried colored powder has good fluidity at the time of filling, it is easy to handle and suitable for mass production.

The backing powder is not colored. After filling one of the coloring powders into the molding space, the other coloring powder is transferred to the backing powder molding space 17. If they are filled together, only two types of materials are used, and material management becomes easy. In addition, it is also possible to obtain the backing powder and granules by using wastewater treatment waste soil, waste tile materials, etc., and granulating them. In this case, pattern tiles can be manufactured at low cost and waste treatment can be performed. And contribute to the reuse of resources.

Further, the method of manufacturing a patterned tile according to the above embodiment includes a partition plate arranging step A in which the partition plate 4 is disposed in the pressure forming die 11, a step of disposing the partition plate 4, and a step of disposing the partition plate 4. A colored powder filling step B for filling the outer molding space 15 and the inner molding space 16 formed by the plate material 4 with light black colored powder and light red colored powder, respectively; After the filling, the partitioning plate material removing step C for removing the partitioning plate material 4 from the inside of the pressure forming die 11, and the backing granular material filling step for filling the backing granular material from above the filled colored granular materials. D, and after filling each colored powder and the backing powder in the pressing mold 11, the colored powder and the backing powder in the pressing mold 11 are integrally pressed. Pressure forming step E for forming and firing step for firing the block formed by the pressure forming die 11 Consisting of.

Therefore, according to the above-described embodiment, since the partitioning plate member 4 is disposed in the pressure forming die 11, then the molding space is filled with the colored powdery material and the backing powdery material. The pattern can be formed by a simple operation, and different colored powders can be filled at the same time.

In the above embodiment, the backing powder is filled together with the colored powder. However, in the case of carrying out the present invention, the filling of the backing powder may be omitted. If the filling of the backing particles is omitted, the material cost may be slightly increased, but the material management becomes easy and the process can be simplified.

Further, in the above embodiment, after the colored powdery granules are filled, the backing powdery granules are filled in the upper part thereof. However, in the case of carrying out the present invention, the filling of these powdery granules is carried out. After filling the backing powder or granules by changing the order of the above, the upper part thereof may be filled with the colored powder or granules. In this case, the partition plate 4
Will be arranged on the upper part of the backing powder granules previously filled in the pressure forming die 11. Therefore, the partition plate 4
Since the lower end does not need to be uniformly and closely contacted with the surface of the pressure forming die 11, the partition plate member 4 can be formed without requiring any particular precision at the lower end.

The pattern tile 1 of the above embodiment has a pattern in which a circle is formed in a square frame. However, in the case of practicing the present invention, for example, a square tile as shown in FIG. Arbitrary patterns can be formed on tiles of various shapes such as hexagonal tiles and circular tiles. FIG. 7 is a front view showing various pattern tiles of the present invention. In FIG. 7C, a pattern is formed by a white portion and a spot-like portion obtained by dispersing a blue powder in a base material, and in FIG. The pattern is formed by color.

When the present invention is carried out, the partition plate is thinned at the lower end or the entire position where the pattern is formed so that the pattern is not broken when the partition plate is removed, or It is also possible to slightly thicken the tip or the whole of the lower position where the pattern is formed so that the contour of the pattern is not clear. Further, the partition plate material forming the periphery can be shared with a part of the pressure forming die.

[0049]

As described above, in the pattern tile according to the first aspect of the present invention, a partition plate is provided in a pressure forming die, and a plurality of molding spaces formed by the partition plate are colored in different colors. After filling the granular material, remove the partition plate material,
Next, after filling the backing powder particles from the top of the filled colored powder particles, the pattern tile obtained by integrally pressing and firing, firing, and firing is obtained by polishing the surface thereof. .
Therefore, especially, since the backing powder is filled from the top of the filled powder, the bonding between different colored powders is reinforced from the back side, the strength is further increased, and peeling is prevented. At the same time, the filling surface of the colored powdery material, which tends to be uneven by filling each molding space, is flattened, and the tile thickness is easily made constant. By using an inexpensive material for the backing powder, the cost of the entire tile can be reduced. Furthermore, since the surface of the patterned tile obtained by firing is polished, a patterned tile having gloss can be obtained.

In the pattern tile according to the second aspect of the present invention, there is provided a partition plate material arranging step of disposing a partition plate material in a pressing mold.
After disposing the partition plate material, a colored powder particle filling step of filling a plurality of molding spaces formed by the partition plate material with colored powder particles of different colors, and a colored powder particle in the pressure molding die. After the body is filled, a partition plate material removing step of removing the partition plate material from the inside of the pressure forming die, and after the partition plate material is removed, the colored powder particles filled in the pressure forming die are integrally formed by pressure forming. Pressure forming step, a firing step of firing the block formed by the pressure forming die, and a step of polishing the surface of the patterned tile obtained by firing. Therefore, since the partition plate material is disposed in the pressure molding die, and the molding space formed thereby is filled with the colored powder particles, the pattern can be formed by a simple operation, and the different coloring can be performed. It is possible to simultaneously fill the powder. Furthermore, the patterned tile obtained by baking can obtain a glossy patterned tile by a process of polishing the surface.

According to a third aspect of the present invention, there is provided a method of manufacturing a patterned tile, comprising the steps of arranging a partition plate in a pressure forming die, and arranging the partition plate after the partition plate is disposed. A colored powder / particle filling step of filling each of the formed molding spaces with a different colored powder / particle, and after filling the colored powder into the pressing mold, from within the pressing mold. A partition plate material removing step of removing the partition plate material, a backing powder particle filling step of removing the partition plate material and then filling a backing powder particle from above the filled colored powder particles, and Molding step of integrally press-molding the colored powder particles and the backing powder particles charged in the sintering step, a firing step of firing a block formed by a pressure-forming die, and firing. Polishing the surface of the pattern tile. Therefore, since the backing powder particle filling step is particularly provided, the pattern tile reinforced by the backing can be formed by a series of simple steps. Also, since the backing powder / particle filling step is provided after the coloring powder / particle filling step, the filling surface of the coloring powder / particle can be flattened by the backing powder, and the The filling operation can be easily performed.
Furthermore, the patterned tile obtained by baking can obtain a glossy patterned tile by a process of polishing the surface.

Further, in the method for producing a patterned tile according to the invention of claim 4, a step of filling the backing powder and granules in a pressure forming die, and filling the backing powder and granules is performed. After that, a partition plate material arranging step of disposing the partition plate material in the pressure forming die; and, after disposing the partition plate material, filling the plurality of molding spaces formed by the partition plate material with the backing powder. A colored powder / particle filling step of filling colored powders of different colors from the top of the granules, and after filling the colored powder in the pressing mold, separating the partition plate material from inside the pressure forming mold A partition plate material removing step of removing, a pressure forming step of integrally pressing the backing powder particles and the colored powder particles filled in the pressure forming die after removing the partition plate material, and a pressure forming step; A firing step of firing the block formed by the mold, and the surface of the patterned tile obtained by firing And a step of polishing. Therefore, similarly to the fifth aspect of the present invention, since the step of filling the backing powder or granules is provided, the pattern tile reinforced by the backing can be formed by a series of simple operations. Furthermore, the patterned tile obtained by baking can obtain a glossy patterned tile by a process of polishing the surface.

[Brief description of the drawings]

FIG. 1 is a front view of a pattern tile according to an embodiment of the present invention.

FIG. 2 is a process diagram illustrating a process of manufacturing a patterned tile according to an embodiment of the present invention.

FIG. 3 is a perspective view of a partition plate used in manufacturing a patterned tile according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view of a pressure-molding die showing a state after filling of the colored particles in the colored particles filling step of FIG. 2;

FIG. 5 is a schematic view of an apparatus for producing a colored powder used in the step of filling the colored powder shown in FIG. 2;

FIG. 6 is a cross-sectional view of a pressure molding die showing a state after filling of the backing granular material in the backing granular material filling step of FIG. 2;

FIG. 7 is a front view showing various pattern tiles of the present invention.

[Explanation of symbols]

 Reference Signs List 4 partition plate material 11 pressure forming die 15 outer forming space 16 inner forming space A partition plate material arranging process B coloring powder material filling process C partition plate material removing process D backing powder material filling process E pressure forming process F firing process

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shukichi Kagami 994-1, Shimoishi-cho, Toki City, Gifu Prefecture Inside Mino Pigment Chemical Co., Ltd. (56) References JP 50-144717 (JP, A) JP 5 JP-A-38707 (JP, A) JP-A-1-45603 (JP, A) JP-A-61-21990 (JP, A) JP-A-54-97610 (JP, A) JP-B-60-920 (JP, B2) )

Claims (4)

(57) [Claims] 1. A partition plate material is provided in a pressure forming die, and a plurality of molding spaces formed by the partition plate material are filled with colored powders of different colors, and then the partition plate material is removed. Then, after filling the backing powder granules from the top of the filled colored powder particles, integrally press-molding, baking, and polishing the surface on the side of the colored powder particles of different colors. A pattern tile characterized by the following: 2. After filling the powdery granules for backing into a pressure forming die, a partition plate is disposed in the pressure forming die, and a plurality of molding spaces formed by the partition plate are filled. After filling the colored powder particles of different colors from the upper portion of the backing powder particles, the partition plate material is removed, and then the pressure molding is integrally formed, baked, and the coloring of the different colors is performed. A pattern tile characterized by polishing the surface on the powder side. 3. A partition plate arranging step of disposing the partition plate in a pressure forming die; and disposing different colors in a plurality of molding spaces formed by the partition plate after disposing the partition plate. A colored powder / particle filling step of filling the powder / particle, a partition plate material removing step of removing the partition plate from the pressure / mold after filling the colored powder into the pressure / molding die, , A backing powder / particle filling step of filling the backing powder from above the filled colored powder, and a coloring powder and a backing powder filled in a pressure mold. A pressure forming step of integrally pressing the same, a firing step of firing a block formed by a pressure forming die, and a step of polishing the surface of the colored powdery granules of different colors. A method for producing a patterned tile, characterized by the following. 4. A backing powder / particle filling step of filling the backing powder / granules into the pressure forming die, and after filling the backing powder / particles, distributing a partition plate material into the pressure forming die. A step of disposing a partition plate material to be provided; and, after disposing the partition plate material, coloring powder particles of different colors from the top of the backing powder particles filled in a plurality of molding spaces formed by the partition plate material. Filling the colored powder and granules in the press forming mold, and then removing the partition plate from the press forming mold; and removing the partition plate. Then, a pressing step of integrally pressing the backing powder and the colored powder filled in the pressing die, and a firing step of firing the block formed by the pressing die. Polishing the surface on the side of the colored powder of different colors. Tile manufacturing method.