Production of photopolymeric flexographic relief printing plates

U.S. Patent Number: 5240815

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.

Inventors: Telser; Thomas (Weinheim, DE), Bach; Helmut (Bad Durkheim, DE)

Assignee: BASF Aktiengesellschaft (Ludwigshafen, DE)

Application Number: 07/720,063

Issued: 1993-08-31

Expired: 2005-08-31

Classes: 430/306 ; 430/309; 430/325; 430/331

Field of search: 430/306,309,325,331

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