Systems and methods for facilitating oil delivery in digital offset lithographic printing techniques
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United States of America Patent
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Feb 3, 2015
Grant Date -
Jan 16, 2014
app pub date -
Jul 10, 2012
filing date -
Jul 10, 2012
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Abstract
A system and method are provided that incorporate a multi-layer plate configuration for a Digital Offset Plate (DOP) including at least a robust top imaging layer and a bottom layer that acts as a reservoir for the releasing oil in a proposed variable digital offset lithographic architecture. The top imaging layer may contain a small amount of oil (<20%) in a range suitable for allowing a small amount of oil to coat the surface and enable release of the ink. A bottom layer may be larger in volume and contain greater quantities (˜20-75%) of oil. Oil from the reservoir layer may diffuse to and through the top layer when the oil in the top surface layer is depleted in a manner that maintains a supply of oil at the surface. The top layer may act as a gate to maintain a steady flow of oil to the surface.
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