SANITARY WARE HAVING PHOTOCATALYST LAYER

摘要

Disclosed is a sanitary ware having a photocatalyst layer which has excellent durability even in an environment where the photocatalyst layer is exposed to an acid and an alkali alternately. The sanitary ware comprises a glaze layer, an intermediate layer provided on the glaze layer, and a photocatalyst layer provided on the intermediate layer, wherein the photocatalyst layer comprises titanium oxide in the amount of 95 mass% to 75 mass% and zirconium oxide in the amount of 5 mass % to 25 mass% and the intermediate layer comprises silica in the amount of 98 mass% to 85 mass%, and titanium oxide and/or zirconium oxide in the amount of 2 mass% to 15 mass%.