| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate film which has fewer wrinkles and in which a surface roughness of a resin layer is set in a desired size, a winding body of the same, and a method for manufacturing the film and the winding body.SOLUTION: A method for manufacturing a laminate film in which a support body and a resin layer are laminated includes: a lamination step of obtaining a laminate of the support body and the resin layer by laminating resin softened by heating on the support body so as to project both ends of the resin layer from both ends of the support body; a cooling step of cooling the laminate while pressure-welding a resin layer side of the laminate to a cooling roll; and a peeling step of peeling the laminate from the cooling roll. The method for manufacturing the laminate film includes using as the cooling roll, a cooling roll where a ten point average roughness Rzof both end areas A on an outer peripheral surface is larger than a ten point average roughness Rzof a central region B, and performing the cooling step so as to pressure-weld a part projected from the support body of the resin layer and both end areas A of the cooling roll, and pressure-weld a part laminated with the support body of the resin layer and the central region B of the cooling roll.SELECTED DRAWING: None |
