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Abstract

A DLC film coated plastic container having the same degree of oxygen barrier as a conventional one and preventing a DLC film at the neck part thereof from being colored and a device and a method for manufacturing the plastic container, the device comprising a material gas supply means having a container side electrode forming a part of a depressurizing chamber for storing the container having the neck part provided thereto and an opposed electrode corresponding to the container side electrode disposed inside the container or on the upper side of the opening part of the container opposed to each other through an insulator forming a part of the depressurizing chamber, a material gas inlet pipe, an exhausting means, and a high frequency supply means, characterized in that the container side electrode is formed so that the averaged inner bore diameter of an inner wall around the neck part of the container when the container is stored is smaller than the averaged inner bore diameter of the inner wall around the body part thereof, and an averaged distance between the outer wall of the container and the inner wall of the container side electrode on a cross section relative to the vertical direction of the container at the neck part is formed larger than an averaged distance between the outer wall of the container and the inner wall of the container side electrode on a cross section relative to the vertical direction of the container at the body part.

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First Claim

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