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Improving resolution and preventing melt edges in the laser engraving of flexographic printing elements by using an oxide, silicate or zeolitic filler (e.g. titanium dioxide or nanoscalar silica) with a transparent relief layer
Improving resolution and preventing melt edges in the laser engraving of flexographic printing elements by using an oxide, silicate or zeolitic filler (e.g. titanium dioxide or nanoscalar silica) with a transparent relief layer
The finely-divided filler in a layer used in laser engraving for manufacture of a flexographic printing element is an oxide, silicate or zeolitic solid of particle size 1-40nm at 0.1-8 wt.% and the relief layer is transparent. The process comprising conventional laser engraving on a layer which is fully crosslinked by actinic light and which comprises an elastomer binder, polymerizable compound, initiator (system) and finely-divided filler on a 3-D support.
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