| 摘要 |
PURPOSE:In carrying out vacuum metallizing on a substrate consisting of a high polymer material, to form a stable thin film at high speed without making the substrate cause heat distortion, thermal decomposition and wrinkle, by applying a potential difference to a specific part, earthing the thin film of metal at a position in the vicinity of winding part of the substrate. CONSTITUTION:In forming a thin film of metal directly or through a thin film of metal on the substrate 6 consisting of a high polymer material running along the outer peripheral face of the cylindrical can 2, a potential difference is applied to a space between the cylindrical can 2 and the thin film of metal, and the thin film of metal is earthed directly or through resistance of metal roll, etc. in the vicinity of the winding part 4 of substrate. EFFECT:Voltage impressed to the substrate 6 at the winding part 4 is lessened by earthing of the thin film of metal, repulsion force between the substrates is lessend, so that wrinkle during winding is prevented.
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