| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated film in which a resin layer is laminated on a thermoplastic resin film, in particular a polyester film, and which includes a resin layer suppressing oligomers precipitating from the thermoplastic resin film during a heat treatment step involving heat treatment and having excellent releasability with respect to an adhesive agent.SOLUTION: A laminated film includes a resin layer (X) formed by using a resin (α) on at least one surface of a polyester film, and satisfies the following conditions of (1) to (4): (1) the thickness of the resin layer (X) has a thickness of 80 nm or more; (2) the resin (α) has a glass transition temperature of 50°C or higher; (3) the resin layer (X) has a surface free energy of less than 40 mN/m; and (4) the resin (α) is obtained from a resin composition comprising a resin (A) having a hydroxyl group and an acryloyl group and a melamine compound (B) having a methylol group. |
