Production of photopolymeric flexographic relief printing plates
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United States of America Patent
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Aug 31, 1993
Grant Date -
N/A
app pub date -
Jun 24, 1991
filing date -
Jun 27, 1990
priority date (Note) -
Expired
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Abstract
In a novel process for the production of a flexographic relief printing plate from a photosensitive recording element which contains A) a dimensionally stable substrate and B) at least one photopolymerizable recording layer having b.sub.1) at least one elastomeric polymer as a binder, b.sub.2) at least one photopolymerizable monomer which is compatible with the binder (b.sub.1) and b.sub.3) at least one photopolymerizable initiator, by (1) imagewise exposure of the photopolymerizable recording layer (B) to actinic light and (2) washout (development) of the unexposed and therefore nonphotopolymerized parts of the imagewise exposed recording layer (B) with an organic developer with formation of a relief layer, wherein the organic developer contains from 1 pphm (1 part per 100,000,000) to 3% by weight, based on its total amount, of at least one antistatic agent.
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