| abstract |
Disclosed is a release film that does not have thickness unevenness due to non-uniform elongation when stretched during molding with a mold. A release film composed of a fluorine-containing resin, wherein the release film has a difference between a stress in a longitudinal direction of the film and a stress in a width direction of 1.80 MPa or less, and the stress is measured according to ASTM D1708. A release film characterized in that it is a value obtained by measurement under conditions of an atmospheric temperature of 120 ° C. and a tensile speed of 100 mm / min by a method based on −02a. [Selection figure] None |