Apparatus for plasma treatment of moving webs
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United States of America Patent
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May 23, 2000
Grant Date -
N/A
app pub date -
Mar 16, 1998
filing date -
Mar 16, 1998
priority date (Note) -
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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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