Plate cleaner for lithographic printing plate
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United States of America Patent
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Mar 18, 1986
Grant Date -
N/A
app pub date -
Jan 9, 1985
filing date -
Jan 12, 1984
priority date (Note) -
Expired
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Abstract
An improved process for restoring the hydrophilic property of stained non-image areas in a lithographic printing plate is described, which comprises treating said lithographic printing plate with a plate cleaner, wherein the improvement comprises using a plate cleaner comprising an aqueous solution containing a silicate and at least one surface active agent selected from the group consisting of cationic surface active agents and amphoteric surface active agents.
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