Printing – Planographic – Lithographic printing plates
Reexamination Certificate
2005-03-22
2005-03-22
Funk, Stephen R. (Department: 2854)
Printing
Planographic
Lithographic printing plates
C101S456000
Reexamination Certificate
active
06868787
ABSTRACT:
Disclosed is a printing plate precursor composed of a substrate and provided thereon, a hydrophilic layer having a center line average roughness Ra of from 150 nm to less than 1000 nm and having effective protrusions of from 500 to less than 3000 per mm2, the effective protrusions protruding from an upper plane 1.0 μm farther from the substrate than a center roughness plane in the three dimensional roughness plane of the hydrophilic layer, and having a ratio H/D of not less than 0.15, wherein H represents a height (μm) from the upper plane of the effective protrusions, and D represents a size (μm) of solids formed by the upper plane and the curved surface protruding from the upper plane of the effective protrusions.
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Funk Stephen R.
Konica Corporation
Muserlian Lucas and Mercanti
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