Method for obtaining a lithographic printing surface using a metal complex
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United States of America Patent
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Issued Date -
Jan 23, 2003
app pub date -
Jul 23, 2001
filing date -
Jul 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In accordance with the present invention there is provided an imaging element for lithographic offset printing. The imaging element comprises hydrophobic polymer particles in an aqueous medium, a substance for converting light into heat, and a metal complex. The imaging element may be used for printing long run lengths on lower quality paper and in the presence of set-off powder. The imaging element may be imaged and developed on-press and may be sprayed onto a hydrophilic surface to create a printing surface that may be processed wholly on-press. The hydrophilic surface may be a printing plate substrate, the printing cylinder of a printing press, or a seamless sleeve around the printing cylinder of a printing press. This cylinder may be conventional or seamless.
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