SU1435554A1 - Under-glaze paint for earthenware - Google Patents

Abstract

The invention relates to the ceramic industry, in particular, to the technology for the synthesis of ceramic dyes and decorating fancy products. In order to provide a stable turquoise-green color with a purity of 21% of the tone and the ability to decorate with a screen-printing and intaglio printing, the underglazing paint contains May. %: 34.10-39.10; CojO, 13.52-14.00; ZnO 15.76-16.20; ACO, 26.02-29.0; 2.10-2.80; MgO 3.5-3.9. The manufacturability of paint is 10 points, the quality of stability is 10 points. 2 tab.

Description

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The invention relates to ceramic npheheJnmeHHTHTH, in particular to the technology of synthesis of ceramic dyes and decoration: fab products.

 The invention is to provide a stable turquoise-green color with a purity of 19.9-21.1% of the tone and the possibility of decorating the silk-screen with a farvet and intaglio printing.

The paint compositions are given in table 1.

The properties of the compositions are given in table. 2

The paint is prepared as follows.

The raw materials are mixed and ground by a wet method in a ball mill until the residue on sieve No. 0056 (10858 holes / cm) and in more than 0.3 wt.%.

Ground and dried at 120+ t10 ° C, fir is calcined at 1320 ± tO c under conditions of a weakly reducing medium and then subjected to secondary grinding in a ball mill to the residue on sieve No. 0056 0.3 wt.%.

Drying is carried out at 120 + 10 s to a final moisture content of 0.3%, then sifting through a sieve of 1 0.315 (445) to a residue on a sieve of 0.3 wt.%.

At a temperature of 1000-1180 ° C and under the glaze decoration of the Fans, the colorful surface has a steady, stable turquoise-green color with

Claims (1)

purity tone 19.9-21.1%. The paints comply with the requirements for working properties of PCT 1450-83, are plastic when drawing pictures (painting, cutting, airbrush coating) and mechanized (screen printing and intaglio printing) decoration methods. Resistance to dissolution of melted glaze, saturation, and color stability due to the composition of the dye provide a clear contour of the pattern and a turquoise-green tint at various thicknesses of the paint coating. Invention Formula Underglaze paint for hair, including Cr, 0 ,, ,, ,, ZnO ,, ,, different with topics that, in order to provide a stable turquoise-green color with a purity of 19.9-21.1% of the tone and the ability to decorate with screen printing and gravure printing, they additionally contain MgO with the following ratio of components, May. %; , 34.1-39.1 SOGO, 13,52-14,00 ZnO15,76-16,20 AljOj26.02-29.0 1-2.8 MgO3.5-3.9 , Zno Aljo Bjoy MgO Table 1 Paint color in the decor (visually) Turquoise-Turquoise-Turquoise-green-green-green Wavelength l, im The purity of the tone of the colorful surface P,% Manufacturability of PCT USSR 1450-83, scores on the decimal system Quality in terms of stability under PCT USSR 1450-83, scores on the decimal system table 2 Turquoise green .495.0 21.1 ten Turquoise green with a blue tint 483.5 15 ten ten