| 摘要 |
Disclosed is a method for producing an optical film having a satisfactory roll-cleaning effect at low cost. Also disclosed is an optical film which can be produced by the method and is less likely to be stained. The method comprises the steps of: pressing a film between a first revolution body and a second revolution body, conveying the film with a third revolution body, and stretching the film, wherein the film is a film-like cellulose resin, the temperature of the cellulose resin during being pressed between the first and second revolution bodies is higher than the melting temperature of an additive, and the line pressure to be employed for the pressing between the first and second revolution bodies is 0.1 to 100 N/mm. |
