MEMBER HAVING PHOTOCATALYTIC FUNCTION

摘要

PROBLEM TO BE SOLVED: To enhance the photocatalytic effect by allowing ultraviolet rays transmitted through a photocatalyst layer to be again incident on the photocatalyst layer by an ultraviolet reflecting layer. SOLUTION: A glaze layer 2 being a material hardly decomposable by photocatalytic action due to photocatalyst particles is applied to the surface of a tile substrate 1 and an ultraviolet reflecting layer 8 comprising a vapor deposition aluminum powder or magnesia is formed on the glaze layer 2 and a photocatalyst layer is formed on this ultraviolet reflecting layer 8.