A ceramic pigment is usually a metal transition complex oxide obtained by a calcination process which shows three main characteristics: (a) thermal stability, maintaining its identity when temperature increases; (b) chemical stability, maintaining its identity when fired with glazes or ceramic matrices; and (c) high tinting strength when dispersed and fired with glazes or ceramic matrices. Other characteristics as high dispensability in vehicles, high refractive index (in order to avoid transparency and to increase its tinting strength), acid and alkali resistance, and low abrasive strength are also suitable. Ceramic ink color red brown (zinc ferro chrome brown) is a synthetic inorganic ceramic pigment, which is calcined at high temperature. During the calcination process at high temperature, Zn2+, Mg2+, Fe2+, Fe3+ and Cr3+ are uniformly diffused at different concentration ratios to form materials with spinel crystal structure. Suitable for oxidizing atmosphere firing. It’s suitable for various glazes. Product fineness: 400 mesh; moisture ≦0.3%. The fineness of the colorant should be controlled during the usage of this series. The colorant can be added after the ball grinding of the glaze. Our ceramic pigment red products can be used for ceramic wall tiles, ceramic arts.
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