| 摘要 |
<p>A cellulose acylate film (27) formed from a solution of cellulose acylate contains a solvent of the solution at 0.1-0.6 wt.%, and acids at less than 500 ppm. The solvent is composed of at least one of esters and ketones, and further a recycled solvent recycled from the solution. In order to produce the cellulose acylate film (27), the solution is applied on a dope band (22) moving in a direction, and dried. Thus a film-like material (27) is formed from the solution, and peeled from the dope band (22). Thereafter the film-like material (27) is further dried to form the cellulose acylate film containing the solvent at between 0.1 and 0.6 wt.%. <IMAGE></p> |
