Dampening fluid recovery in a variable data lithography system
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United States of America Patent
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May 5, 2015
Grant Date -
Aug 8, 2013
app pub date -
Feb 6, 2012
filing date -
Feb 6, 2012
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Abstract
In a variable data lithography system that employs a patterned dampening fluid layer for image formation, dampening fluid may be removed prior to image transfer to a substrate. Removed dampening fluid may be recovered and recycled to reduce operating expenses and environmental waste. A replacement fluid may be applied after inking and after removal of the dampening fluid. The replacement fluid preferentially occupies the regions previously occupied by dampening fluid, and may lubricate the transfer nip. Any replacement fluid and ink not transferred to the substrate upon printing may then be cleaned from the print image carrier prior to forming a new dampening fluid layer and subsequent pattern formation.
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