| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a film obtained by using a polyvinyl alcohol-based polymer, holding high flexibility and transparency, excellent in slidability so that blocking phenomenon hardly takes place, and excellent also in heat sealability; and to provide a method for producing the film. <P>SOLUTION: The film comprises a polyvinyl alcohol-based polymer on the surface of which microparticles are arranged. The film surface has arithmetic average roughness (Ra) of 80-300 nm, and Young's modulus of the film is 150 MPa or less. The method for producing the film, having surface arithmetic roughness (Ra) of 80-300 nm, includes a step of coating the surface of a polyvinyl alcohol-based polymer film with a coating liquid containing microparticles by the gravure coating method. <P>COPYRIGHT: (C)2012,JPO&INPIT |
