Photographic products and processes employing novel nondiffusibl

Details Photographic products and processes employing novel nondiffusibl Photographic products and processes employing novel nondiffusibl

1979-01-09

1980-06-10

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

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

Diffusion transfer process, element, or identified image...

430226, 430505, 430559, G03C 554, G03C 140, G03C 700, G03C 110

Patent

active

042071046

ABSTRACT:
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety which contains a nitrogen atom adjacent to the point of attachment to the azo linkage. The compound contains a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.

REFERENCES:
patent: 4142891 (1979-03-01), Baigrie et al.
patent: 4147544 (1979-04-01), Anderson et al.

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