Apparatus for Thermal Processing of Flexographic Printing Elements
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United States of America Patent
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Issued Date -
May 11, 2017
app pub date -
Nov 10, 2015
filing date -
Nov 10, 2015
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Abstract
An apparatus for thermally processing a relief image printing element and a method of using the same. The relief image printing element comprises at least one photopolymer layer, and is selectively exposed to actinic radiation to crosslink portions of the at least one photopolymer layer, while portions of the at least one photopolymer layer are not exposed to actinic radiation, and are not crosslinked. The apparatus comprises: a) a means for supporting the relief image printing element; b) heating means for melting or softening non-crosslinked portions of the at least one photopolymer layer; c) at least one rotatable roll that is capable of bringing a blotting material into contact with the at least one photopolymer layer to remove the melted or softened non-crosslinked portions of the at least one photopolymer layer; and d) a rotatable cleaning roll arranged adjacent to the at least one rotatable roll, for removing non-crosslinked photopolymer remaining on a surface of the at least one rotatable roll after step c).
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