Apparatus for plasma treatment of moving webs

Details Apparatus for plasma treatment of moving webs Apparatus for plasma treatment of moving webs

1998-03-16

2000-05-23

Walberg, Teresa

Electric heating

Metal heating

By arc

428 653, B23K 900

Patent

active

060668261

ABSTRACT:
Apparatus and process for plasma treatment of moving webs, or films, are disclosed. The apparatus includes magnets and multiple hollow cathodes, which, in the presence of a plasma, magnetically focuses and thereby intensifies the plasma to one side of the film surface. The moving web is positioned either between the hollow cathodes and the magnets or in front of the hollow cathodes and the magnets. The plasma treatment functionalizes the film surface.

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