Method and apparatus for treating the surface of a web or film,

Details Method and apparatus for treating the surface of a web or film, Method and apparatus for treating the surface of a web or film,

1996-01-26

1998-06-16

Cannon, James C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204168, 264446, 264448, 264484, 361225, 361233, 361234, 442301, 442414, B29C 7104, B32B 3300

Patent

active

057664250

ABSTRACT:
The surface of a web or film is modified to impart the material with improved properties including wettability, printability, adhesion and static reduction. Such surface modification is achieved with an electrode structure which causes a filamentary discharge to pass generally horizontally across a surface of the electrode structure. A substrate to be treated is then positioned adjacent to the surface of the electrode structure so that the filamentary discharge is caused to flow horizontally across the surface of the substrate, in turn modifying the surface of the substrate and achieving the desired improvement in properties.

REFERENCES:
patent: 5401446 (1995-03-01), Tsai et al.
patent: 5409766 (1995-04-01), Yuasa et al.
patent: 5486411 (1996-01-01), Hassenboehler

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