| 摘要 |
PROBLEM TO BE SOLVED: To provide an easy-to-adhere polyester film excellent in the adhesiveness with a metal such as aluminum, having an easy adhesive coating film having a uniform surface, generating no blocking even under a high humidity condition and excellent in transparency. SOLUTION: At least the single surface of a polyester film is coated with an aq. soln. containing a compsn. containing 40-80wt.% of a polyester polymer (A) wherein a secondary transition point is 40-85 deg.C and a ratio of a dicarboxylic acid component having an SO3 M group is 0-6mol% per the total dicarboxylic acid component, 20-70wt.% of an acrylic polymer (B) with a secondary transition point of 25-70 deg.C, 1-20wt.% of an acrylic polymer (C) with a secondary transition point of below 25 deg.C and 1-20wt.% of a surfactant (D) with HLB of 8-18 as main components and the coated film is dried and stretched to obtain an easy adhesive coating film. |
