Black image dye-providing materials and photographic products an

Details Black image dye-providing materials and photographic products an Black image dye-providing materials and photographic products an

1984-09-26

1986-01-07

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...

430222, 430225, 430226, 430563, G03C 140, G03C 554

Patent

active

045634122

ABSTRACT:
Diffusion transfer photographic color products and processes are described in which there are utilized novel chrome complexed neutral tone black image dye-providing materials which include either a 1-naphthol-2'-naphthol-1', 2-azo dye moiety or a 2-naphthol-2'naphthol-1, 1'-azo dye moiety, a parasubstituted phenyl azo-pyrazolone dye moiety and a cation. The image dye-providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.

REFERENCES:
patent: 1918938 (1933-07-01), Straub et al.
patent: 4000965 (1977-01-01), Mennicke et al.
patent: 4085097 (1978-04-01), Beffa et al.
patent: 4174221 (1979-11-01), Idelson
patent: 4358527 (1981-11-01), Bailey et al.
patent: 4416815 (1983-10-01), Schutz et al.

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