PRINTING ROLL AND METHOD OF PRODUCING THE SAME
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United States of America Patent
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Issued Date -
Aug 25, 2011
app pub date -
Nov 5, 2009
filing date -
Nov 11, 2008
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Abandoned
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Abstract
In order to propose a dry process technique of producing a printing roll having safe and beauty concave portions for printing image area without discharging environmental contaminating substance and a new technique for improving quality of printed matters, this invention is to provide a printing roll with DLC film layer in which laser beam-engraved grooves as concave portions for printing image area are formed on a carbide cermet spray coating formed on a surface of a roll substrate, and a method wherein a carbide cermet spray coating is formed on a surface of a roll substrate roughened by a blast treatment, the surface of the carbide cermet spray coating is ground or ground-polished, then a DLC film is formed on the ground or ground-polished surface and thereafter laser beam-engraved grooves are formed on the surface of the DLC film as a concave portion for printing image area.
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