Laser-imageable printing members and methods for wet lithographic printing
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United States of America Patent
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Feb 27, 1996
Grant Date -
N/A
app pub date -
Apr 13, 1994
filing date -
Apr 13, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Lithographic printing constructions and methods of imaging them. The constructions include a grained-metal substrate, a protective layer that can also serve as an adhesion-promoting primer, and an ablatable oleophilic surface layer. In operation, imagewise pulses from an imaging laser interact with the surface layer, causing ablation thereof and, probably, inflicting some damage to the underlying protective layer as well. The imaged plate may then be subjected to a solvent that eliminates the exposed protective layer, but which does no damage either to the surface layer or to the unexposed protective layer lying thereunder.
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Cited Art Landscape
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