| abstract |
PROBLEM TO BE SOLVED: To provide an easily-adhesive polyester film excellent in adhesion to a functional layer containing a water-soluble / hydrophilic resin such as polyvinyl alcohol, polyvinyl acetal, nitrocellulose, polyoxyethylene or the like as a component. I do. SOLUTION: The number of repeating units is 10 to 1 on at least one surface of the polyester film before the completion of the crystal orientation. An easy-adhesion polyester film provided with an easy-adhesion layer obtained by applying an aqueous coating solution containing a resin in which the polyalkylene oxide of No. 00 is copolymerized, followed by drying, stretching, and heat treatment. |