| 摘要 |
PROBLEM TO BE SOLVED: To prevent the yellowing of the resin layers formed on both sides of a thin metallic film layer by the thermal deterioration and thermal fusion thereof and to obviate the occurrence of the discoloring of resin molded goods by the bleading of colors from the resin layers, i.e., a color migration, by successively forming a polyamide-imide resin layer A, the thin metallic film layer, and a polyamide-imide resin layer B on one surface of a plastic film. SOLUTION: The polyamide-imide resin layer A is formed on one surface of the thin metallic film layer and the polyamide-imide resin layer B is formed on the other surface thereof. At least either of the polyamide-imide resin layer A and the polyamide-imide resin layer B may be colored. The polyamide-imide resin layer A is formed on one surface of the plastic film, such as polyester film, and, if necessary, a polyamide-imide clear layer is formed and the thin metallic film layer is formed thereon. The thin metallic film layer may be formed by a thin film forming method, such as vacuum vapor deposition, sputtering or ion plating. |
