GRAVURE PLATE-MAKING ROLL AND METHOD OF PRODUCING THE SAME
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United States of America Patent
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Issued Date -
Mar 19, 2009
app pub date -
May 24, 2006
filing date -
Jun 6, 2005
priority date (Note) -
Abandoned
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Abstract
A novel gravure engraving roll that has a surface-reinforcing coating layer being nontoxic and having no danger of pollution generation at all and that excels in printing life; and a process for producing the same. There is provided a gravure engraving roll comprising: a metal hollow roll; a copper plating layer superimposed on the surface of the hollow roll and on its surface furnished with a multiplicity of gravure cells; a metal layer superimposed on the surface of the copper plating layer; a layer of carbide of said metal superimposed on the surface of the metal layer; and a diamond-like carbon coating covering the surface of the metal carbide layer.
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