Offset lithographic plate
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United States of America Patent
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Apr 19, 1994
Grant Date -
N/A
app pub date -
Aug 24, 1992
filing date -
Aug 6, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lithographic plate blank for imaging on a laser printer comprises a sheet of flexible electrically non-conductive material and an image receiving etchable layer coating bonded on a surface thereof, the coating including zinc oxide, a resin binder, and an electrical property regulating agent and being effective to provide the plate with a surface resistance of between 10.sup.11 and 10.sup.14 ohms per square and a dark decay rate of at least 15 volts per second. A method of preparation of a blank plate and a method of preparation of an imaged plate are disclosed.
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