ANTIBACTERIAL AND MILDEWPROOFING SOLUTIONS CONTAINING INORGANIC SILVER COMPLEX SALTS AND PROCESS FOR PRODUCING THE SAME

摘要

Antibacterial and mildewproofing solutions which are in the form of liquid applicable onto the surface of an ordinary article to thereby impart antibacterial and mildewproofing properties thereto and are nonvolatile and odorless and the effects of which are not deteriorated by heat, acids, UV rays or anionic surfactants but sustained even after washing with water. An aqueous solution containing ammonium chloride or an alkali metal or alkaline earth metal chloride in the form of the chloride ion is prepared. Then a silver salt or metallic silver is added thereto and silver ions are dissolved therein as a chlorinated complex salt. The resultant aqueous solution is characterized by exhibiting an antibacterial effect when the concentration of the silver ions contained as the chlorinated complex salt is 0.05 mg/l or more, and antibacterial and mildewproofing effects when the concentration thereof is 0.5 mg/l or more. <IMAGE>