Enamel glaze and preparation process thereof

A technology of enamel glaze and glaze, which is applied in the field of ceramics to achieve the effects of increasing adhesion, increasing firing temperature, and ensuring food safety

Active Publication Date: 2010-07-28
SHENZHEN YONG FENG YUAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional enamel colored porcelain are small decorations such as small bowls, bottles, snuff bottles, etc., which are subject to great limitations in shape.

Method used

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  • Enamel glaze and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032]Example 1: On the 480mm bone china vase blank, draw the outer contours of the dragon and phoenix with a brush dipped in tearable glue, and then apply a layer of golden yellow glaze on the outer surface of the 480mm bone china vase blank , golden yellow color glaze prepared according to the following formula: 25 parts of quartz powder (325 mesh), potassium feldspar powder (325 mesh): 25 parts, 10 parts of kaolin, 12 parts of borax, 5 parts of zinc oxide, 1 part of zirconium silicate, carbonic acid 11 parts of calcium, 5 parts of phosphorus pentoxide, 1 part of strontium carbonate, and 5 parts of lithium carbonate. After mixing the above raw materials evenly, melt them at 1400℃~1450℃, put them into cold water and quench them into a frit. Put the frit into a ball mill, add water, high alumina ball stone and 6% kaolin to grind it into a glaze slurry, the fineness is controlled to be less than 0.03% on a million-hole sieve, and then dried at 70-100°C to make a powder over 250...

Embodiment 2

[0035] Embodiment 2: On the 400mm hard porcelain flat plate compact, use a brush to dip in paraffin to draw the outline of the peony flower, and then apply a layer of bright red color glaze on the outer surface of the 400mm hard porcelain flat plate compact, The bright red color glaze is prepared according to the following formula: 44 parts of quartz powder (325 mesh), nepheline powder (325 mesh): 20 parts, 6 parts of kaolin, 8 parts of borax, 6 parts of zinc oxide, 1 part of diyttrium trioxide, calcium carbonate 9 parts, magnesium carbonate 2 parts, strontium carbonate 2 parts, lithium carbonate 2 parts. After mixing the above raw materials evenly, melt them at 1450°C, put them into cold water and quench them into frits. Put the frit into a ball mill, add water, high alumina ball stone and 10% kaolin to grind it into a glaze slurry, the fineness is controlled to be less than 0.03% on a 10,000-hole sieve, and then dried at 80°C to make a powder and pass through a 250-mesh siev...

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Abstract

The invention discloses an enamel glaze which belongs to the technical field of ceramic materials, and the enamel glaze comprises a colored glaze basic glaze, an enamel glaze basic glaze and coloring pigments. The invention further discloses a preparation process of the enamel glaze and an application of the enamel glaze. The preparation process can improve the firing temperature of the enamel colored glaze, expand the firing range of the glaze, improve the viscosity of the enamel colored glaze and ensure that coloring metal oxides can not be diffused or the color can not be dimmed due to the flowing of the glaze by optimizing the formula of the enamel colored glaze, adopting an appropriate amount of zinc oxide for replacing heavy metal flux materials, such as lead oxide and the like, integrating the applicable color development performances of a variety of coloring materials and introducing a rare earth compound of yttrium oxide. The preparation process can further ensure that the coloring metal oxides in the enamel glaze can not be oxidized by oxygen or water vapor in the air through the way of underglaze color, thereby further ensuring that a product can not change the color or fade forever, closing heavy metals contained in the coloring oxides for avoiding solventing-out and solving the problem of heavy metal pollution.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and in particular relates to an enamel ceramic glaze and a preparation process thereof. Background technique [0002] With a long history, the enamel colored porcelain known as "the queen of colored porcelain" and "the official kiln in the official kiln" evolved from cloisonne, which was made of enamel on a copper body, and the enamel colored porcelain was made in Enamel glaze is put on the porcelain body and then fired, so enamel colored porcelain is also called "painted enamel on porcelain body". The traditional low-temperature overglaze painting process of painting enamel glaze on the porcelain body is used. Because the decorative patterns protrude about 1mm from the glaze surface, they are easy to fall off and change color after long-term friction. The glass-based glaze with a large expansion coefficient, because the glass-based glaze contains quartz, the melting temperature of the quartz i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/20C04B41/86
Inventor 刘权辉曾学富
Owner SHENZHEN YONG FENG YUAN IND
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