Production of photopolymerized relief printing plates having...

Details Production of photopolymerized relief printing plates having... Production of photopolymerized relief printing plates having...

G - Physics

03

F

96/257

G03F 7/40 (2006.01)

Patent

CA 2008987

A relief printing plate whose photopolymerized relief layer has a non-tacky surface is produced by (1) imagewise exposure of a photopolymerizable relief-forming recording layer which contains one or more polymeric binders containing acid groups, (2) washing out (development) of the unexposed and therefore non-photopolymerized parts of the imagewise exposed relief-forming recording layer with a developer and (3) aftertreatment of the resulting photopolymerized relief layer with a basic aftertreatment solution.

La présente invention a pour objet un cliché pour impression en relief dont la couche d'impression en relief, obtenue par photopolymérisation, présente une surface non poisseuse; le cliché en question est réalisé par (1) exposition dans le sens de l'image d'une couche d'enregistrement formant relief, laquelle contient au moins un liant polymère contenant des groupes acides; (2) enlevage (développement) des parties non exposées et, de ce fait, non polymérisées, de la couche d'enregistrement formant relief au moyen d'un révélateur, et (3) traitement de finition de la couche d'impression en relief photopolymérisée au moyen d'une solution basique de post-traitement.

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