High-efficiency plasma treatment of paper
AssigneeEastman Kodak Company
InventorsJeremy M. Grace, Louis J. Gerenser, Christine J. Landry-Coltrain, Kurt D. Sieber, Michael J. Heinsler, Dennis R. Freeman
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Abstract
An apparatus for treating paper web materials with a plasma, said apparatus comprising a dark space generated by a treatment electrode in a treatment zone. There is a counter electrode having a surface area in said treatment zone which is not greater than a surface area of said counter electrode. A power supply is included for driving either said treatment electrode or said counter electrode with an oscillating high voltage at a frequency less than about 2 MHz and greater than 1/tc where tc is the charging time of a web surface exposed to a rms ion current in the plasma.
Claims8
An apparatus for treating paper web materials with a plasma, said apparatus comprising:
- (a) a dark space generated by a treatment electrode in a treatment zone;
- (b) a counter electrode, said treatment electrode having a surface area in said treatment zone which is not greater than a surface area of said counter electrode;
- and
- (c) a power supply for driving either said treatment electrode or said counter electrode with an oscillating high voltage at a frequency less than about 2 MHz and greater than 1/tc where tc is the charging time of a web surface exposed to a rms ion current in the plasma.
Dependencies are inferred from the claim text.