Method of and apparatus for making plastic film with barrier lay

Details Method of and apparatus for making plastic film with barrier lay Method of and apparatus for making plastic film with barrier lay

1996-04-30

1998-01-06

Bueker, Richard

Coating apparatus

Condition responsive control

118712, 118719, 118723R, C23C 1400

Patent

active

057049807

ABSTRACT:
A plastic wrapping film is provided with one or more aluminum layers by vapor deposition and the or each layer is only partially oxidized in an oxidizing plasma so that the resulting barrier layer is distinguishable by slight reduction in transparency but excellent prevention of penetration by moisture and oxygen.

REFERENCES:
patent: 4197337 (1980-04-01), Di Biasi et al.

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