Ceramic decoration coloring substances with increased color saturation comprising zirconium pigments, process for their production and their use
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United States of America Patent
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Jan 16, 2001
Grant Date -
N/A
app pub date -
Sep 28, 1998
filing date -
Sep 26, 1997
priority date (Note) -
Expired
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Abstract
Ceramic decoration coloring substances substantially containing a zirconium pigment of the host lattice or inclusion type and a glass flux at a pigment volume concentration (PVC) of at least 30% have an increased color saturation C* if the glass flux comprises at least 71 wt. % PbO. Preferred decoration coloring substances have a PVC in the range from 40 to 70% and a PbO content of 75 to 85 wt. %. The decoration coloring substances are especially suitable for production of decorations, burned at 1000 to 1250.degree.C, with increased color saturation C*.
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