JPH0788264B2 - Method for forming blur pattern using liquid pigment - 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 forming a pattern on the surface of a ceramic product such as a tile by using a liquid pigment, and more specifically, a novel pattern in which part or all of the periphery of the pattern is blurred. On how to do.

[0002]

2. Description of the Related Art A technique for forming a pattern on the surface of a tile or coloring the surface using a liquid pigment is disclosed in Japanese Patent Application No. 58-43929 and Japanese Patent Application No. 6-29929 filed by the present applicant.
0-79725. The former describes a method of forming a pattern of a desired shape on a tile surface with a liquid pigment, and the latter relates to a method of coloring the entire tile surface.

As the liquid pigment, an aqueous solution of a chloride or nitrate of a metal such as cobalt, nickel, manganese or iron is generally used. The liquid pigment has a property of penetrating from the surface of the base material to a depth of about 1 to 2 mm when applied to the tile base material. Therefore, a tile product colored or patterned with a liquid pigment has a coloring layer having a depth of about 1 to 2 mm from the surface of the tile, and therefore the pattern or coloring layer disappears even if the surface is slightly worn. It has the advantage that it is suitable as a floor material.

[0004]

Among the above-mentioned prior applications of the present applicant, the former application discloses a technique for drawing a pattern having a very clear contour, and an appropriate amount of binder is blended. The point is to adjust the fluidity and permeability of the liquid pigment by. On the other hand, the latter application
Disclosed is a technique for forming a uniform colored layer on the entire surface of a tile using a liquid pigment.

By the way, as consumers' tastes are diversified, a pattern shape that is difficult to achieve by the above-mentioned prior art technique is often required. In particular, it has been extremely difficult in the prior art to form a blurred pattern in which only part or all of the periphery of the pattern portion drawn with the liquid pigment is blurred.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a means for forming a novel blur pattern on a surface of a ceramic base material such as a tile by using a liquid pigment. After forming a pattern portion by applying and penetrating a liquid pigment, a dispersant solution is applied to diffuse a part or all of the peripheral edge of the surface of the pattern portion, or This is to form a pattern part in which a part or all of the peripheral edge of the surface is diffused by applying a dispersant solution to part or all of the part and then applying and penetrating a liquid pigment.

[0007]

Since the ceramic base material generally has an appropriate water absorption property, when the liquid pigment is applied to the ceramic base material, the liquid pigment penetrates into the base material as described above. However, if the water content of the ceramic base is adjusted to be low, the permeated liquid pigment will not diffuse to the surroundings. Therefore, the liquid pigment forms a pattern with a clear outline.

Then, when the dispersant solution is applied, the liquid pigment is diffused by the dispersant that has penetrated into the substrate,
A blur pattern in which the peripheral edge of the surface of the pattern portion is blurred is formed. The region to which the dispersant solution is applied may be the whole surface or a part of the surface of the substrate, and is appropriately selected as desired. When the dispersant solution is applied over the entire surface, a blurring pattern is formed in which the periphery of the entire pattern portion is diffused, and when applied over a part, a special blurring pattern in which the periphery of the pattern portion is locally diffused can get.

It is also possible to replace the above procedure and apply a dispersant solution to the ceramic base material in advance, and then apply a liquid pigment to form a blur pattern. Also in this case, the region to which the dispersant solution is applied can be arbitrarily selected in whole or in part on the surface of the base material.
The area in which the blur pattern is formed is determined according to the application area of the dispersant solution, as described above.

By applying the liquid pigment uniformly on the entire surface of the substrate and locally applying the dispersant solution, it is possible to form a blur pattern in which the pigment is partially diffused. Also in this case, the liquid pigment and the dispersant solution may be applied in any order.

[0011]

EXAMPLES The details of the present invention will be described below based on examples.

The liquid pigment used in the present invention produces a stable dye by firing at high temperature, and is generally an aqueous solution of a chloride or nitrate of a metal such as cobalt, nickel, manganese, iron or a mixture thereof. Is. In addition, chelate compounds such as ammonium complexes of the above metals can also be used. In addition, glycerin or aqueous ammonia may be contained as a solvent for the liquid pigment, or Al ₂ O ₃ , tartaric acid, KNO ₃ or the like may be added as a pigment stabilizer or a coloring accelerator.

Further, in order to adjust the fluidity and viscosity of the liquid pigment, it is possible to add a binder. The binder is preferably one that disappears upon firing, and examples thereof include starch paste, syrup, ethylene glycol, polyethylene glycol, polyvinyl alcohol, and paraffin.

On the other hand, as the dispersant for diffusing the liquid pigment, not only water but also a surfactant (soap water), a deflocculant, water glass (sodium silicate) and the like can be used.

Next, a procedure for forming a blur pattern on the tile surface will be described with reference to a concrete example.

Concrete Example 1 First, as shown in FIG. 1, a pattern portion 2 having a desired shape is formed on the surface of a tile base 1 with a liquid pigment. A screen printing method is typically used as a means for forming the pattern portion 2, but a method using an uneven roll, a brush coating method, or the like is also possible. Also, instead of forming a pattern of a specific shape, if only applying a liquid pigment,
The flap method can also be adopted.

In forming the pattern portion 2 with the liquid pigment,
The water content of the tile base 1 is adjusted to be small, and the fluidity of the liquid pigment is adjusted by adjusting the pigment concentration and the binder content. As a result, as shown in FIG. 1B, the liquid pigment can penetrate from the surface of the tile base 1 to a depth of about 1 to 2 mm, but can be prevented from diffusing further. Therefore, a clear pattern portion 2 having a contour 2a as shown in FIG. 1A is formed on the surface of the tile base 1.

Subsequently, the tile base 1 having the pattern portion 2 formed thereon
Apply the dispersant solution to the surface of. The application means is appropriately selected according to the degree of blurring of the pattern, such as spraying or brush coating. For example, when a dispersant solution such as water or soapy water is applied to the entire surface of the tile base 1 by spraying, the entire peripheral edge 2b of the pattern portion 2 as shown in FIG. A pattern is obtained. This is (b) in the same figure.
This is because the liquid pigment present in the surface layer diffuses to the surroundings by the dispersant solution that has penetrated into the tile base 1, as shown in FIG.

After that, if the tile base 1 is fired, a tile product having a desired gradation pattern is manufactured.

The blur pattern according to the method of the present invention can also be formed by a procedure in which a dispersant solution is applied to the entire surface of the tile base material 1 in advance and then a pattern is formed with a liquid pigment. Is.

[Specific Example 2] FIG. 3 shows an embodiment in which a blurred portion having a blurred peripheral edge is locally formed in the pattern portion 2 formed on the surface of the tile base 1.

In this embodiment, after the pattern portion 2 is formed on the surface of the tile base 1 by screen printing or the like,
The dispersant solution is partially applied to the surface of the tile base 1 by an appropriate method such as shaving, brush coating, and uneven roll method. As a result, the pattern portion 2 has a portion 2a with a clear contour and a portion 2b with a blurred peripheral edge, and a unique blur pattern is formed.

Also in this embodiment, the dispersant solution is locally applied beforehand to the surface of the tile base material 1, and then the pattern portion 2 is formed by the liquid pigment to give a blur pattern as shown in FIG. You can also get

Concrete Example 3 FIG. 4 shows that the entire surface of the tile base 1 is coated with a liquid pigment to form a uniform colored layer 3 and then the dispersant solution is partially coated, or
This is an example in which a dispersant solution is applied in advance and then a liquid pigment is applied to the entire surface of the tile base 1 to form a blur pattern.

In this embodiment, the pigment is applied only to the area coated with the dispersant solution in the colored layer 3 which is uniformly formed by applying the liquid pigment to the entire surface of the tile base 1 by the spraying method or the curtain method. Diffusion is performed to produce the portions 4 having different color densities, thereby forming a blur pattern.

Other than the above, the embodiment of the present invention is
It does not prevent appropriate modification according to the embodiment.

[0027]

The blur pattern formed by the present invention is
Since it has a unique design in which a part or all of the periphery is diffused and blurred, it exhibits an excellent aesthetic appearance never obtained from the conventional techniques. Therefore, it is possible to meet various tastes of consumers.

The method of the present invention can form a unique blur pattern on the surface of a ceramic product such as a tile without glaze, and the blur pattern is formed by the liquid pigment that has penetrated into the substrate. Has been done. Therefore, the tile on which a blur pattern is formed using the method of the present invention has a non-slip effect because the surface is rougher than the glazed tile, and since the pigment penetrates the base, the pattern may be slightly worn. It will not disappear. That is, it can be said that the tile product to which the method of the present invention is applied has suitable properties as a floor material.

[Brief description of drawings]

FIG. 1 shows a state in which a pattern portion is formed of a liquid pigment on the surface of a tile base, FIG. 1A is a plan view, and FIG. 1B is an enlarged vertical cross-sectional view of the pattern portion.

2A and 2B show a state in which a blur pattern is formed on the surface of a tile base by the method according to the present invention, FIG. 2A is a plan view, and FIG. 2B is an enlarged vertical sectional view of a pattern portion. is there.

FIG. 3 is a plan view showing a bear in which a blur pattern is formed on the surface of a tile base by a method according to another aspect of the present invention.

FIG. 4 is a plan view showing a state in which a blur pattern is formed on the surface of a tile base by a method according to still another aspect of the present invention.

[Explanation of symbols]

 1 Tile base 2 Pattern part 2a Clear outline 2b Pigment diffusion part

Claims (2)

[Claims] 1. A pattern portion is formed by coating and permeating a liquid pigment on the surface of a ceramic base, and then a dispersant solution is coated to diffuse a part or all of the peripheral edge of the surface of the pattern portion. A method for forming a blur pattern using a liquid pigment, which is characterized by the above. 2. A pattern part in which a part or all of the peripheral edge of the surface is diffused by applying a dispersant solution to part or all of the surface of the ceramic base material and then applying and permeating a liquid pigment. A method for forming a blur pattern using a liquid pigment, which comprises forming a pattern.