| 摘要 |
PROBLEM TO BE SOLVED: To provide a film cutting method capable of improving cutting ability of a cut part of a film to prevent the occurrence of inconvenience that the plane property of the cut part is reduced and increasing the productivity of films. SOLUTION: A film is cut by setting a remaining volatile component of the film 12 to 1% to 15% and a temperature of the cut part of the film 12 to 60 deg.C to TG (glass transition temperature of polymer). Consequently, a cutting end face providing satisfactory cutting ability is obtained without causing a problem of cut chips, and the plane property of the cut part can be ensured because its temperature is less than TG. As a result, cutting providing stable and satisfactory cutting ability can be performed. |
