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    • 5. 发明公开
    • DLC film coated plastic container
    • 与DLC膜涂覆的塑料容器
    • EP2052987A3
    • 2009-05-06
    • EP09001090.1
    • 2003-05-26
    • KIRIN BEER KABUSHIKI KAISHA
    • The designation of the inventor has not yet been filed
    • B65D23/02C23C16/26
    • C23C16/26B65D1/0215B65D23/0814C23C16/045C23C16/505Y10T428/1352
    • The present invention provides a plastic container having a inner wall surface coated with DLC film which has same level of oxygen barrier property as prior art and can prevent a coloring of the DLC film formed on a neck portion of the container.
      The apparatus for manufacturing the DLC film coated plastic container, comprising:
      a container side electrode which forms one portion of a pressure-reducing chamber which houses a container formed from plastic, a facing electrode which faces said container side electrode and is arranged inside said container or above said opening, wherein said container side electrode and said facing electrode are made to face each other via an insulating body which forms a portion of said pressure-reducing chamber, source gas supply means which includes a supply gas inlet pipe, exhaust means, and high frequency supply means; wherein said container side electrode is formed so that the average inner hole diameter of the inner wall surrounding said neck portion when the container is housed becomes smaller than the average inner hole diameter of the inner wall surrounding said body portion, and the average distance between the outer wall of said container and the inner wall of said container side electrode in a horizontal cross section with respect to the vertical direction of said container at said neck portion becomes longer than the average distance between the outer wall of said container and the inner wall of said container side electrode in a horizontal cross section with respect to the vertical direction of said container at said body portion.