A kind of bottom glaze for the production of fully polished glazed tiles, which is beneficial to the color development of ceramic inks
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A technology of ceramic ink and full glaze, which is applied in the field of underglaze for color development of ceramic ink, which can solve problems such as unsatisfactory color development, pinholes on the brick surface, and wide firing range, and achieve the effect of widening the firing range
Active Publication Date: 2017-11-10
GUANGDONG XINRUNCHENG CERAMICS
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[0005] At present, the full-polished bottom glaze used by full-polished glazed tile manufacturers mainly has problems such as: unsatisfactory color development, not wide firing range, affecting product flatness, and easily causing pinholes and melting holes on the brick surface.
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[0035] Below in conjunction with specific embodiment the present invention is described in further detail:
[0036] Table 1
[0037]
[0038]
[0039] Table 2
[0040]
[0041] The process flow of the bottom glaze processing and use:
[0042] Batching → ball milling → sieving → iron removal → glaze slurry stale → sieving → iron removal → bell jar glaze (or linear glaze).
[0043] The processing technological process of the bottom glaze: batching → ball milling → sieving → iron removal → glaze slurry stale. Glaze slurry fineness: 0.4-0.6% remaining on 325 mesh sieve; glaze slurry moisture content: 41-42%; glaze slurry specific gravity: 1.88-1.90; glaze slurry flow rate: 30-40 seconds.
[0044] The using method of the bottom glaze is as follows: glazing by a bell jar glazing process or a linear glazing process. Glazing slurry flow rate: 30-40 seconds by bell-jar glazing process; specific gravity of glazing slurry by bell-jar glazing process: 1.88-1.90; glazing by be...
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Abstract
An underglaze used in the production of fully polished glazed tiles, which is beneficial to the color development of ceramic inks. The main raw materials of the underglaze are: 20-30% of potassium feldspar powder, 10-20% of feldspar powder, 5-10% of calcined kaolin powder, quartz powder 8-13%, kaolin powder 5-10%, calcined alumina powder 16-21%, calcined talc powder 1-3%, calcined zinc oxide 1-3%, zirconium silicate 9-15%, water reducing agent 0.3 ~0.4%, methyl 0.15~0.25%; single raw material chemical composition CaO content<3%; bottom glaze raw material chemical composition: SiO248.5~52.0%, Al2O330~34.5%, Fe2O30.1~0.2%, TiO20. 05~0.15%, CaO 0.1~0.3%, MgO 0.3~1.0%, K2O 3.0~4.0%, Na2O 1.5~2.5%, ZnO 0.9~3.0%, ZrO25~10%, firing reduction 0.9~2.0%; Technological process: batching→ball milling→sieving→iron removal→glazing slurry stale; method of using bottom glaze: glazing by bell-jar glazing process or linear glazing process. The invention enriches the color of the product, is beneficial to the color development of the ceramic ink, each color has a deeper color and a purer tone, and the product yield is high.
Description
technical field [0001] The invention relates to an underglaze used in the production of fully glazed tiles, in particular to an underglaze used in the production of fully glazed tiles and beneficial to the color development of ceramic ink. Background technique [0002] my country is the world's largest producer of ceramics, not only daily-use porcelain and decorative porcelain, but also the output of architectural and sanitary ceramics ranks first. [0003] Ceramic polished tiles are the most popular variety in architectural decoration. With the continuous upsurge of architectural decoration, the design of ceramic polished tiles incorporates more artistic elements and the technological content is increasing day by day. [0004] Fully glazed ceramic tiles are architectural ceramic products that have been popular in the market in recent years. Before 2011, they were mainly completed by screen or roller printing technology. With the introduction of ceramic inkjet printing techn...
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