Printing – Planographic – Lithographic printing plates
Reexamination Certificate
2006-01-10
2006-01-10
Funk, Stephen R. (Department: 2854)
Printing
Planographic
Lithographic printing plates
C101S467000
Reexamination Certificate
active
06983694
ABSTRACT:
A negative-working lithographic printing plate precursor is disclosed which comprises a grained and anodized aluminum support having a hydrophilic surface and a heat-sensitive coating provided on the hydrophilic surface, the coating comprising hydrophobic thermoplastic polymer particles which are capable of forming a hydrophobic phase in the coating by heat-induced coalescence of the polymer particles. The support is characterized by a surface roughness, expressed as arithmetical mean center-line roughness Ra, which is less than 0.45 μm. The smooth surface enables to prepare a lithographic printing plate from the mentioned precursor, which is characterized by a high run length during printing.
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Translation of JP 2002-96573.
Joerg Klaus
Kokkelenberg Dirk
Vermeersch Joan
Watkiss Philip John
AGFA Gevaert
Funk Stephen R.
Leydig , Voit & Mayer, Ltd.
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