| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a cellulose acylate film, in which aging stability of liquid after dissolution is improved and a retardation group is difficult to be generated after film making. SOLUTION: In the method for producing the cellulose acylate film, 3-95 wt.% cellulose acylate film scrap is mixed with unused cellulose acylate flakes and the mixture is substantially dissolved in an unchlorinated solvent and thereafter film making is performed. |
