Polycarbonate ribbon for non-impact printing
AssigneeInternational Business Machines Corporation
InventorsGary Fred Brooks, Walter Crooks, William Joseph Weiche
Life of this patent
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Abstract
The present invention is concerned with a ribbon for non-impact printing. The ribbon comprises a transfer coating and a substrate which is a polycarbonate resin containing from about 15% to about 40% by weight of electrically conductive carbon black.
Claims6
A ribbon for non-impact printing comprising a transfer layer and a substrate which is a polycarbonate resin containing from about 15% to about 40% by weight of elecrically conductive carbon black.
A ribbon for non-impact printing comprising a transfer layer and a substrate of about 15 microns thickness which is a polycarbonate resin containing about 30% by weight of electrically conductive carbon black.
Dependencies are inferred from the claim text.