| 摘要 |
PURPOSE:To prevent a thin film layer from decomposing and deteriorating by forming the thin film layer on the surface of a synthetic resin substrate where a low temperature plasma processing is operated. CONSTITUTION:A thin film layer 2 such as a reflecting film, a recording film is formed on the surface of a synthetic resin substrate 1 where the low temperature plasma processing is operated. When the synthetic resin substrate 1 is exposed to a low temperature atmosphere, the surface is activated and made rough, and the adhesive property between the thin film layer 2 and the substrate 1 of the metallic thin film, etc., formed on the surface is enhanced. Thus, water does not enter between the synthetic resin substrate 1 and the thin film 2, the chemical reaction between the thin film layer 2 and the water is prevented, and aged deformation and deterioration are prevented. |
