| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic color composition which contains no lead, has little reduction in the strength of a glass board, and has both excellent oxidation resistance and mold releasability. SOLUTION: The ceramic color composition consists of, by mass, 63 to 78.99% lead-free glass powder, 5 to 12% heat resistant whisker, 0.01 to 1% bismuth trioxide and 16 to 26% heat resistant pigment powder. The lead-free glass powder consists of, by mass, 50 to 62% Bi2 O3 , 25 to 40% SiO2 , 5 to 8% TiO2 , 3 to 6% Li2 O, 0 to 3% K2 O and 0 to 3% CeO2 . Preferably, the mass average particle size of the heat resistant pigment powder is 1.2 to 2.5μm.
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