Ceramic glaze having antimicrobial property

摘要

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.

主权项

1. An antimicrobial ceramic glazing composition, comprising:
a ceramic glaze base adapted to be fired at a firing temperature of from at least about 1062° C.; and an antimicrobial composition including: a first antimicrobial agent consisting of Ag2CO3; and a second antimicrobial agent that is one of Bi2O3, CuO or ZnO; wherein the first antimicrobial agent is present in the glaze composition at a concentration of about 0.5 to about four percent, by weight of glaze composition; and wherein the second antimicrobial agent is present in the glaze composition at a concentration of from about one percent to about four percent, by weight of glaze composition; and wherein the glazing composition is adapted to possess an antimicrobial property after a conventional firing process at the firing temperature.