| abstract |
A cellulose acylate film containing a cellulose acylate and an organic acid represented by X-L-(R 1 ) n in an amount of 0.01-1% by mass of the cellulose acylate, wherein at least 90% by mass of the cellulose acylate is a cellulose acylate having a total degree of acyl substitution of 1.5-2.7. In the formula, X represents an acid group having an acid dissociation constant of at most 5.5, L represents a single bond or a lining group having two or more valence, and R − represents a hydrogen atom, an alkyl group, etc. |