| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin film-forming process for improving physical properties of plastic vessels. SOLUTION: A plastic vessel 2 is placed inside an outer electrode 1 having a cylinder-shaped interior, a cylinder-shaped inner electrode 3 is inserted inside the vessel, a monomer gas is supplied between the film-forming surface of the vessel and the electrode facing this surface, a high-frequency is applied between the electrodes, and the monomer gas is plasmanized to coat the surface of the vessel.
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