METHOD FOR PRODUCING ZIRCONIUM PHOSPHATE POWDER COATED WITH ANTIMICROBIAL INGREDIENT AND POWDER CONTAINING ANTIMICROBIAL INGREDIENT

摘要

The present invention relates to a method for producing zirconium phosphate powder coated with an antimicrobial ingredient, including the steps of: (A) putting zirconium phosphate (Zr(HPO₄)₂.nH₂O) which has been pulverized to a size of 500nm or less through a basket mill and dispersed in deionized water into a reactor, and stirring the content of the reactor at a temperature of 20 to 60°C for 0.2 to 1 hours so as to disperse the content; (B) forming antimicrobial zirconium phosphate by reacting the content with a solution obtained by dissolving silver ion precursor and a metal salt selected from the group of zinc, calcium and copper in deionized water for 12 to 48 hours; (C) filtering the zirconium phosphate of step (B), cleansing the filtered matter with deionized water, and drying the cleansed matter at a temperature of 45 to 120°C for 4 to 12 hours with hot air supplied by a far-infrared ray dryer; and (D) pulverizing and pyrolyzing the dried matter at a temperature of 250 to 300°C for 0.5 to 1 hours, and then at a temperature of 450 to 500℃ for 1 to 2 hours so as to coat the zirconium phosphate with the antimicrobial ingredient.