SUBSTRATE TREATING COMPOSITION FOR ANTIBACTERIAL GLAZE, ANTIBACTERIAL ARTICLE USING THE SAME AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a composition for a substrate layer which is effective to reveal antibacterial property of an antibacterial article having a glaze layer containing an antibacterial agent with high efficiency, at a low cost, simply and uniformly and to provide the antibacterial article using the same and its manufacturing method. SOLUTION: The substrate layer (preferably having 10 to 500μm thickness) is formed on a base body of the antibacterial article by applying a substrate layer coating liquid containing a composition incorporating 75 to 90 wt.% SiO2 , 10 to 20 wt.% Al2 O3 and 0.1 to 3 wt.% K2 O+Na2 O and drying. Then the glaze layer containing the antibacterial agent (preferably silver or a silver compound) is formed thereon and is fired.