FLEXOGRAPHIC INK RECIRCULATION WITH ANTI-AIR-ENTRAINMENT FEATURES
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United States of America Patent
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Issued Date -
Apr 28, 2016
app pub date -
Oct 27, 2014
filing date -
Oct 27, 2014
priority date (Note) -
Abandoned
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Abstract
A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. A fountain roller partially submerged in ink in an ink pan is used to transfer ink to an anilox roller, which transfers a controlled amount of ink to the flexographic printing plate. 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 recirculation port in an ink pan. The design of the ink pan and ink recirculation port is arranged so that an opening of the ink recirculation port is fully covered by the ink during printing by the flexographic printing system.
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