| 摘要 |
PROBLEM TO BE SOLVED: To provide a releasing film, which improves the productivity of a resin mold molding process, the yield of products, the mark visibility of the lot number of product or the like. SOLUTION: As this releasing film, a thermoplastic tetrafluoroethylene-based copolymer film having a degree of shrinkage of 0 to -10% in lengthwise and breadthwise directions of a film is used. More preferably, a film having a tensile elongation of 200 to 800% is employed.
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