| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently increase the adhesion between a dielectric film and a metallized film by forming a copolymer polyester layer containing organic particles on at least one surface of a polyethylene naphthalate film. SOLUTION: A copolymer polyester layer containing organic particles is laminated upon at least one surface of a polyethylene naphthalate film, by applying a solution prepared by dissolving or scattering a copolymer polyester composition in a solvent to the surface of the naphthalate film and drying the solution. At the time of applying the solution, the reverse control method, gravure roll coating method, rod coating method, air knife coating method, etc., can be adopted. The content of the organic particles in the copolymer polyester layer is adjusted to 0.1-15 wt.%. In addition, the adhesive force between the surface of the polyester layer containing organic particles and the vapor-deposited surface of a vapor-deposited aluminum film is adjusted to >=10 gf/15 mm. |
