| 摘要 |
PROBLEM TO BE SOLVED: To provide a thickly decorated inorganic material which can apply hemispherical thick decoration having sufficient gloss to a white porcelain. SOLUTION: The thickly decorated inorganic material comprises a glass frit containing: an alkali metal oxide of 0 to 6 (mol%); ZnO of 2 to 3 (mol%), B<SB>2</SB>O<SB>3</SB>of 14.7 to 16 (mol%); Al<SB>2</SB>O<SB>3</SB>of 6 to 7 (mol%) and SiO<SB>2</SB>of 68 to 70 (mol%). The median diameter of the glass frit is 10 to 31 (μm). Thus, by using the thickly decorated inorganic material, hemispherical thick decoration (thick decoration layer) 20 with a satisfactory shape as a commodity can be applied to a porcelain 10 (white porcelain 10) in which the thermal expansion coefficient α<SB>EN</SB>of a glaze is ≤4.5×10<SP>-6</SP>(/K). Further, the thick decoration 20 can be fired at a low temperature in which gloss is not lost, thus the thick decoration 20 can be provided with gloss sufficient as a commodity. COPYRIGHT: (C)2011,JPO&INPIT
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