| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: To burn and use under the same conditions as a conventional frit for coloring glass containing Pb, which has high chemical durability such as acid resistance, has a small thermal expansion coefficient, and is capable of removing harmful substances such as Pb. Provided is a glass composition that is substantially free. A frit composition for coloring glass having the following composition in terms of weight percentage. SiO 2 42-48, B 2 O 3 10-18, Zn O 20~26, Al 2 O 3 0.5~5.0 , ZrO 2 0~10, TiO 2 0~10, Li 2 O 0 to 6, Na 2 O 0 to 10, K 2 O 0.2 to 10.0, provided that Li 2 O And Na 2 O are at least 0.2, and Li 2 O, Na 2 O, the total of K 2 O is 6 to 12, the total of MgO, CaO, SrO, BaO is 0 to 5, MoO 3 0 to 4, WO 3 0 to 4, and the total of the above components is 100. S converted to SO 3 by weight is 0 to 1, F 0 to Contains 2. |