Patent ID: 8859009

Claim:
A method of fixing an antibacterial agent on an article, comprising the steps of: subjecting a surface of an article to an ozone water treatment of providing the surface with oxygen-containing functional groups by treating the surface with ozone water; and then subjecting the article to a treatment using an antibacterial agent composition including a silicon-containing compound represented by the general formula below wherein R 1 represents a non-cyclic alkyl group having 6 to 25 carbon atoms, R 2 and R 3 represent C 1-6 hydrocarbon groups, respectively, which hydrocarbon groups may be the same or different from each other, R 4 represents a divalent C 1-6 hydrocarbon group, R 5 , R 6 and R 7 represent C 1-6 alkoxy groups, respectively, which may be the same or different from each other, and X represents a halogen ion or an organic carbonyloxy ion; and wherein the antibacterial agent composition further comprises at least one non-ionic surfactant, and the article is made of an acrylic resin.