Photosensitive element for use as flexographic printing plate

G - Physics – 03 – F

Patent

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Details

G03F 7/11 (2006.01) B41N 1/00 (2006.01) G03C 5/00 (2006.01) G03F 7/09 (2006.01)

Patent

CA 2461039

A photosensitive element for use as a flexographic printing plate comprises a support, an elastomeric photopolymerizable layer having a surface opposite the support that defines a plane, and a matted layer disposed above the surface of the photopolymerizable layer comprising a polymeric binder and at least one matting agent which is capable of forming depressions from the plane into the photopolymerizable layer. Also described is a process for preparing such a photosensitive element and a process for preparing a flexographic printing plate from the photosensitive element.

Un élément photosensible destiné à être utilisé comme cliché flexographique comprend un support, une couche photopolymérisable élastomérique munie d'une surface opposée au support qui définit un plan, et une couche de matières disposée au-dessus de la surface de la couche photopolymérisable élastomérique comprenant un liant polymérique et au moins un agent de matité qui est capable de former des dépressions à partir du plan vers la couche photopolymérisable. La présente porte aussi sur un procédé permettant de préparer cet élément photosensible et un procédé permettant de préparer un cliché flexographique à partir de l'élément photosensible.

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