| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a cellulose triacetate film having excellent flatness without longitudinal wrinkle or scar even in the case of film forming by raising a drying temperature by high temperature drying. SOLUTION: The method for manufacturing a cellulose triacetate in the case of manufacturing the film by using a solution casting film forming apparatus having a cooling step with a plurality of cooling rolls 10 comprises the steps of executing a web 1 via a final temperature of a drying step immediately before the cooling step, and then cooling the rolls 10 while conveying it while winding the rolls 10. |
