| 摘要 |
PROBLEM TO BE SOLVED: To provide a film which is excellent even in suitability for a coating process, wherein when a coated layer is provided on a film surface, an oligomer deposited onto the coated layer surface is little and even when treated at a high temperature, decrease of transparency is not caused. SOLUTION: For a laminated film having the coated layer on a polyester film surface having a critical surface tension of≥46 dyne/cm, a polyester-attributable oligomer amount on a surface of the coated layer after the laminated film is heat treated at 180°C for 10 min, is≤10.0 mg/m<SP>2</SP>. COPYRIGHT: (C)2004,JPO |
