| 摘要 |
PURPOSE:To obtain a polypropylene film for double-side vapor deposition having less blocking, strong adhesive force between film and vapor-deposited metal and also having excellent uniformity in thickness of vapor-deposited film, having no exfoliation of vapor-deposited metal and generating no wrinkle. CONSTITUTION:The characteristic of the title polypropylene film for double-side vapor deposition is that surface roughness (Ra) of sides of the title film is 0.025 to 0.136mum, the friction coefficient of one surface (surface A) and other surface (surface B) is 0.75 or less) and also the ratio (O/C) of number of oxygen atoms/number of carbon atoms of the surface layer of the above-mentioned film and the ratio (N/C) of the number of nitrogen atoms/number of carbon atoms is in the range of O/C=0.15 to 0.34 on the surface A, and in the range of O/C=0.10 to 0.40 on the surface B. |
