| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester film that can be suitably used as a process film used in various processes, for example, process sheets for transferring such as simultaneous molding and transferring, for manufacturing a flexible printed wiring board, and for manufacturing a plastic sheet, and that can be particularly suitably used in a process where smoothness and less degradation in releasing property by heat in processing are required.SOLUTION: A laminate polyester film is provided, which has a coating layer formed from a coating liquid comprising a release agent and an isocyanate compound on at least one surface of a polyester film; and the laminate polyester film has a center line average roughness (Ra) of 8 nm or less on a surface of the coating layer. |
