PROBLEM TO BE SOLVED: To provide a thin film which is formed on a surface of a product such as a container and equipment for food and has a layer in which Ag having antibacterial effect is alloyed with Sn, and to provide a method of producing the same, and an article whose surface is coated with the thin film. SOLUTION: The antibacterial thin film is formed by forming an Ag-Sn multilayered thin film on the surface of the article through plating or physical vapor deposition and subjecting it to a heat-treatment in which this Ag-Sn multilayered thin film is heated and kept at 200-300°C and then cooled at a cooling rate of≤50°C/min. COPYRIGHT: (C)2008,JPO&INPIT
