| 摘要 |
PURPOSE:To obtain a composite film enhanced in the adhesive strength with a vapor deposition film and reduced in electrostatic capacity change rate by superposing a polymer film on the single surface of a polyester film and further superposing a metal layer thereon by vapor deposition. CONSTITUTION:In a composite polyester film mainly used as an industrial material, a film composed of poly(1,4-cyclohexylene dimethylene terephthalate) containing 50% or more, pref., 70% or more of a cyclohexane dimethanol unit is provided to the single surface or both surfaces of a polyester film and a metal layer composed of aluminium or zinc is further provided on this polymer film by vapor deposition. By this method, the adhesion, orientation and growth state of the vapor deposition film becomes dense and the adhesive strength thereof is enhanced and an electrostatic capacity change rate is reduced. |
