| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester film very suitable as a molded, processed and printed product, or a processing film in molding, processing and printing. SOLUTION: The polyester film has, as a constituent component, a polyester A containing at least two or more of glycol components selected from ethylene glycol, butanediol and propanediol, and satisfies the formula: M/P<1...(1) (wherein, in formula, M is a concentration (milimol %) of a catalyst-metal atom remained in the polyester, and P is the concentration (milimol %) of a phosphine atom p remained in the polyester A.).
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