Dye imbibition photohardenable imaging material and process for

Details Dye imbibition photohardenable imaging material and process for Dye imbibition photohardenable imaging material and process for

1981-12-04

1983-02-15

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

430271, 430285, 430941, 430308, 101464, 428480, 428483, G03C 554, G03C 140, G03C 500, B41M 500

Patent

active

043741940

ABSTRACT:
A positive, continuous tone, dye image is produced by means of a dye imbibition imaging element comprising (a) a support having thereon, (b) a cationic mordant layer for an anionic dye, and (c) a sensitized photohardenable photopolymer layer consisting essentially of a photosensitive polyesterionomer. A process for forming a positive, continuous tone dye image in a dye imbibition imaging element, as described, comprises the steps of: (1) imagewise exposing the photopolymer layer of the element to activating radiation to imagewise harden the photopolymer layer; then (2) developing the photopolymer layer by means of water rinsing; and, then (3) imbibing an anionic dye into the mordant layer through the unexposed areas of the photopolymer layer. Alternatively, the process comprises immersing the imagewise-exposed element from step (1) into a bath comprising the anionic dye without the need for a water rinsing step. This alternative process enables the anionic dye to be imbibed into the mordant layer through the unexposed areas of the photopolymer layer without the need for removing a portion of the unexposed areas of the photopolymer layer. The anionic dye is optionally transferable into another mordant layer.

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