Patent ID: 7381415

Claim:
A composite powder having antibacterial and antifungal effect comprising: a base powder; wherein said base powder provides an adsorbing site for adsorbing a specified enzyme; a zinc oxide and/or zinc basic carbonate; and an alkali metal salt; wherein said zinc oxide and/or zinc basic carbonate and said alkali metal salt are combined as an acting site to inhibit an activity of said enzyme which is adsorbed by said adsorbing site of said base powder; wherein said base powder, said zinc oxide and/or zinc basic carbonate, and said alkali metal salt are combined; and wherein said alkali metal salt is encapsulated in said zinc oxide and/or the zinc basic carbonate, wherein said base powder is at least one selected from the group consisting of silica, talc, mica, polyamide, polymethyl methacrylate and silicone resin; and wherein said alkali metal salt is at least one selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium hydrogen carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, lithium carbonate, sodium carbonate and potassium carbonate.