Lithographic printing plate support and presensitized plate
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United States of America Patent
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Jul 29, 2014
Grant Date -
Nov 3, 2011
app pub date -
Apr 29, 2011
filing date -
Apr 30, 2010
priority date (Note) -
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Abstract
The lithographic printing plate support includes an aluminum plate and an anodized film formed on the aluminum plate and micropores extend in the anodized film in a depth direction from its surface opposite from the aluminum plate. Each of the micropores includes a large-diameter portion having a predetermined shape and a small-diameter portion having a predetermined shape. The lithographic printing plate support has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life, and excellent deinking ability in continued printing and after suspended printing.
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