POLYOLEFIN FILM AND ITS MANUFACTURING PROCESS

PROBLEM TO BE SOLVED: To provide a polyolefin film which is excellent in optical functionalities such as anti-fogging properties, printability, adhesiveness and anti-fouling properties, and can maintain its surface tension highly for a long period of time and to provide its manufacturing process. SOLUTION: This polyolefin film is molded from a resin composition comprising a photocatalyst particle and a polyolefin. The photocatalyst particle is located on the surface of the film. Its surface tension is not less than 42 mN/m. This polyolefin film can be manufactured by preparing the resin composition comprising the photocatalyst particle and the polyolefin, carrying out a film molding of the resin composition, stretching the film biaxially, and carrying out a surface treatment such as a corona treatment to make the surface tension of the stretched film to be not less than 42 mN/m. COPYRIGHT: (C)2005,JPO&NCIPI