JPH03293465A - Formation of decoration surface of ceramic product - Google Patents

Abstract

PURPOSE:To provide a ceramic product surface which has a pattern of arbitrary lustre by a method wherein a base glaze is applied on a ceramic product surface, and a lustre glaze and a glaze containing a compound reacting to the lustre glaze and regulating metallic glossiness are applied for baking. CONSTITUTION:The surface of a tile 1 is partitioned into (a) -(c) in a longitudinal direction and A-C in a lateral direction to apply a semimat glaze. A glaze, e.g. flit, formed of feldspar, pottery stone, and various compositions and having different softening temperatures and melt viscosity is directly screen-printed on a base glaze 2 and baked at a high temperature. Metallic glossiness is produced on or disappeared from a base glaze according to the melt point of a glaze being lower or higher than temperature during lustre processing. Further, by partially changing the composition of a glaze and partially changing mixture of a compound by which metallic glossiness is disappeared, the pattern of a surface is arbitrary regulated. Further, by the change of the baking temperature and a baking time of a surface on which glazing is applied, a distribution state of fine particles is changed to form a peculiar pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for decorating the surfaces of ceramic products such as various sanitary ware, tiles, and ceramic plates.

[Conventional technology: Traditionally, many decorative ceramics have been glazed with a glaze on the surface for decoration, stain resistance, waterproofing, and smoothing. Alternatively, there are those that have been subjected to raster processing in which a thin film containing metal oxide particles is provided on the glazed surface.

This raster processing is suitable for precious metals, titanium, copper, nickel, tin, cobalt, cadmium, uranium, iron, silicon,
It is formed by applying a filler solution or diluted ether solution of organic compounds such as phosphorus, arsenic, antimony chloride, and bismuth nitrate onto the glaze surface by a method such as spraying, and then heat-treating at 700 to 900°C. There is also a method of forming a compound of the metal that is easily vaporized, such as a halogen compound, by chemical vapor deposition.

The surface of the ceramic product obtained by this raster processing has a single color tone, which is beautiful in its own way from a decorative perspective, but this raster pattern can be developed further to obtain a design pattern with unprecedented changes in brilliance. There is a need to do so.

As one of the methods to meet this need, for example, Japanese Patent Application Laid-Open No. 60-221376 discloses that a colored glaze mixed with fine powder of a substance that ashes at the overglaze firing temperature is applied to the overglazed raster and fired to create a glassy finish. It is disclosed that painting is performed.

This method basically leaves the raster and mixes the ash with it, and although it can eliminate the metallic luster, it is not possible to adjust the luster in multiple stages, so it cannot be used for ceramic products. It was not possible to sufficiently respond to the diversifying needs of surface patterns.

[Issues that Hathu tries to solve]

The problem to be solved by the present invention is to apply raster processing to the surface of a ceramic product, but by adjusting the metallic luster in multiple stages, it is possible to create a unique pattern that is completely different from the original raster. The present invention provides a method for forming on the surface of a ceramic product.

[Means for Solving the Problems] The present invention involves applying a base glaze to the surface of a ceramic product, applying a raster glaze that produces a metallic luster thereon, and containing a compound that reacts with the raster glaze to adjust the metallic luster. It is characterized by being glazed and fired.

The raster glaze of the present invention (glaze used in raster processing) includes conventional noble metals, titanium, copper, nickel, tin, cobalt, cadmium, uranium, iron, silicon, phosphorus, arsenic, antimony chloride, bismuth nitrate, and other organic materials. Bulk oil solutions or ethereal dilutions of the compounds can be used.

Glazes containing compounds that adjust metallic luster by reacting with the raster glaze include 5102, ^1205, K2O, N
aaOlCan, MgO1Zr02, PbO, Li01
ZnO1B,O.

pe203, Tie, softening temperature made of feldspar, pottery stone and various compositions made of any combination of ,
Frits with different melt viscosity, V, ZnSSn, l
Metal oxides, metal salts, such as O, WlMn, and 7i, or inorganic pigments having compositions thereof, are used at arbitrary concentrations and at arbitrary locations.

[Effect]

In the present invention, when a glaze with a melting point lower than the temperature during raster processing is applied on the base glaze, the above-mentioned precious metals etc. contained in the raster glaze are absorbed into the glaze whose melting point is lower than the temperature during raster processing. , can eliminate metallic luster.

Conversely, if a glaze with a melting point higher than the temperature during raster processing is applied on the base glaze, the above-mentioned precious metals etc. contained in the raster glaze will not be absorbed into the glaze whose melting point is higher than the temperature during raster processing and will remain. , it is possible to create a metallic luster that matches the surface condition of the base glaze.

By forming a design pattern by printing on a screen or the like, it is possible to obtain an arbitrary detailed change in the brilliance of the design pattern portion.

In addition, patterns can be formed on the surface by partially changing the composition of the raster glaze to be applied, or by partially changing the composition of the compound that reacts with the raster glaze and eliminates the metallic luster. shading, color, tone,
It becomes possible to arbitrarily adjust the arrangement of patterns, etc.

Furthermore, by changing the firing temperature or firing time of the glazed surface, the distribution state of the fine particles can be changed arbitrarily.

〔Example〕

The present invention was applied to an ordinary square tile substrate.

FIG. 1 shows the state of glazing on the base surface of a square tile 1.

Referring to the figure, the surface of the tile 10 was divided into sections a to C in the vertical direction and A to C in the horizontal direction.

First, a semi-matte glaze is applied as the base glaze 2 to the base surface of the tile 1, and then each of the glazes shown in Table 1 is directly screen printed on the base glaze 2 in the sections a-C and A-C. It was fired in a hearth kiln at 1200°C for 37 minutes. Thereafter, a resin acid solution of titanium in a dilute oil solution was sprayed uniformly over the entire surface of the tile, and baked at 80°C for 60 minutes.

The areas outside of each section of a-C and A-C, that is, the area where the titanium resin acid solution was sprayed uniformly over the entire surface of the tile and fired, only gave a --like glow, whereas this As for the features of the portion corresponding to the embodiment of the invention, various radiances were obtained.

1. Strength of glow The intensity of the glow was visually observed.

Table 1 shows the content and intensity of each glaze.

As shown in Table 1, it was possible to obtain a raster decorative article that had a metallic luster only at an arbitrary position on the tile surface and also had a change in brilliance.

〔Effect of the invention〕

Honhathu produces the following effects.

(1) It is possible to obtain a unique decorative surface with a luster that is completely different from raster glazing.

[2] It is possible to obtain a surface of a ceramic product having an arbitrary pattern of brilliance at any location on the surface of the ceramic product.

(3) The combination of (2) can be easily created.

(4) It can be applied to any ceramic product regardless of its base material or shape.

[Brief explanation of drawings]

FIG. 1 shows the application positions of each glaze on the tile in this example. 1: Tile 2: Base glaze A, B, C, a, b, c: Compartmentalized sales glaze position of each glaze

Claims (1)

[Claims] 1. A ceramic product characterized by applying a base glaze to the surface of the ceramic product, applying a raster glaze and a glaze containing a compound that reacts with the raster glaze to adjust metallic luster, and firing. How to form decorative surfaces. 2. The method for forming a decorative surface of a ceramic product according to claim 1, characterized by partially changing the glazing conditions of the raster glaze and the glaze containing a compound that reacts with the raster glaze to adjust metallic luster. A method for forming decorative surfaces of ceramic products.