Flexographic printing system with solvent replenishment
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jul 30, 2015
app pub date -
Jan 24, 2014
filing date -
Jan 24, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink. The replenished ink is returned to the ink reservoir through a distribution tube that includes a plurality of supply ports at a plurality of spaced apart locations across a width of the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump.
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