| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a laminated polyester film having excellent characteristics which can highly suppress the precipitation of an oligomer from a surface of a film, for example, when exposed to a high temperature and is free from troubles caused by an oligomer (ester cyclic trimer) during storing, using and processing a film.SOLUTION: There is provided a laminated polyester film having a coating layer formed by applying a coating liquid containing a polyaldehyde compound on at least one surface of a polyester surface layer having a monolayer polyester film in which the content of an ester cyclic trimer is 0.7 wt.% or less, or a multilayer polyester film in which the content of an ester cyclic trimer is 0.7 wt.% of less.</p> |
