| 摘要 |
PURPOSE:To obtain an ink for pottery and glass having improved discoloration resistance, by incorporating low-melting frit with a compound oxide based black pigment having silica film on the particle surface. CONSTITUTION:An ink obtained by using a compound oxide based black pigment having silica film on the particle surface as a pigment in an ink for pottery and glass consisting of low-melting frit and the pigment. The dispersion concentration of the compound oxide based black pigment to be used is preferably about 5-15wt% considering the economic efficiency and uniformity of the product. Examples of the above-mentioned black pigment include pigments consisting of copper and chromium oxides, pigments consisting of copper, iron and chromium oxides, pigments consisting of copper, chromium and manganese oxides, etc. Preferably, the amount of the silica film of the black pigment is about 2-10wt% based on the total weight. |
