Dye imbibition imaging material including cationic mordant...

Details Dye imbibition imaging material including cationic mordant... Dye imbibition imaging material including cationic mordant...

G - Physics

03

C

96/204, 96/26

G03C 1/00 (2006.01) G01N 33/58 (2006.01) G03F 1/10 (2006.01) G03F 3/10 (2006.01) G03F 7/038 (2006.01) G08B 5/22 (2006.01)

Patent

CA 1164707

ABSTRACT OF THE DISCLOSURE A positive, continuous tone, dye image is pro- duced by means of a dye imbibition imaging element com- prising (a) a support having thereon, (b) a cationic mordant layer for an anionic dye, and (c) a senitized photohardenable photopolymer layer consisting essentially of a photosensitive polyesterionomer. A process for form- ing a positive, continuous tone dye image in a dye imbibi- tion 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 with- out 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 photo- polymer 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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