Direct engraving of flexographic printing plates
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United States of America Patent
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Feb 5, 2013
Grant Date -
Nov 17, 2011
app pub date -
May 17, 2010
filing date -
May 17, 2010
priority date (Note) -
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Abstract
A system for engraving flexographic printing plates, is presented. A flexographic plate (104) is mounted on an imaging drum 404. Printable areas (204, 304) on the flexographic plate are engraved by an imaging source (408) configured to engrave fine detail information. Non-printable areas (208) are engraved on the flexographic plate by a second imaging source (412, coarse imaging source) capable to engrave substantially deeper (208, 520) than the depth of engraving used for the printable areas. Synchronizing (424) between the fine imaging source and the coarse imaging source, by directing the fine and coarse sources operate simultaneously, whereby the fine source images on the printable areas and the coarse source images the non-printable areas. In addition the fine source engraves the printable data areas (704) and non-printable support areas (708) underneath the printable areas. The non-printable support areas are engraved to be substantially wider than the printable data areas.
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