Patent ID: 7255976
Filing Date: 2007-08-14
Classification: B41C,B41N,G03F,Y10S

Abstract:
1. A laser-engravable flexographic printing element for the production of flexographic printing plates, at least comprising a dimensionally stable substrate, a laser-engravable elastomeric, crosslinked relief layer, obtainable by uniform crosslinking of a crosslinkable relief layer which comprises at least two polymeric binders and components for crosslinking, wherein the at least two polymeric binders comprise a blend of at least one hydrophilic polymer and at least one hydrophobic elastomer, said at least one hydrophilic polymer comprising a polymer comprising a vinyl alcohol unit, and the weight ratio of hydrophilic polymer to hydrophobic elastomer is from 1:99 to 30:70, hydrophilic polymers prepared by means of emulsion polymerization being excluded.