Eastman-kodak Company

Arthur M Stewart

Brian S Rice

Zbigniew Hakiel

Robert Cushman Brown

Allan Thomas Hoy

John J Zeller

A corona discharge web conveyance roller ( ) and process for finishing the surface ( ) of the roller ( ) with plateaus ( ) and down features ( ) adjacent to the plateaus. Interconnected channels ( ) formed in the surface ( ) of the roller ( ) by overlapping down features ( ) comprise at least 50% of the surface area while plateaus ( ) comprise at least 20% to about 50% of the surface of the roller. Down features ( ) have depths greater than about 12 microns but less than about 125 microns.

Corona discharge treatment roller and surface finishing process

Process for finishing the surface of a corona discharge treatment roller

A corona discharge web conveyance roller (10) and process for finishing the surface (14) of the roller (10) with plateaus (30) and down features (22) adjacent to the plateaus. Interconnected channels (30) formed in the surface (14) of the roller (10) by overlapping down features (22) comprise at least 50% of the surface area while plateaus (30) comprise at least 20% to about 50% of the surface of the roller. Down features (22) have depths greater than about 12 microns but less than about 125 microns.

Webs are provided with edge knurls whose effective height varies along the length of the web in a predetermined manner.

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Fairport, NY, United States of America

Arthur M Stewart