| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated film working method for performing three-dimensional decoration by a simple method. SOLUTION: The working method for providing ruggedness to a plastic film which is a laminated film 10 including a plurality of films 11, 12 with different thermal expansion coefficients, comprises heat-pressing a mold 1 for shaping a character, a mark, or the like on the laminated film 10 to heat a part of the laminated film 10 into the shape of a heated mold 1, then separating the heated mold 1 from the laminated film 10 to stop heating the laminated film 10, thereby swelling the shape of the heated mold 1 to the film 11 side with the small thermal expansion coefficient to form a projecting shape 13 on the laminated film 10. COPYRIGHT: (C)2010,JPO&INPIT |
