Photographic element and process for providing metal complex col

Details Photographic element and process for providing metal complex col Photographic element and process for providing metal complex col

1985-01-02

1985-11-26

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Chromatic image produced from achromatic reproduction image

430222, 430226, 430375, 430378, 430542, 430543, 430547, G03C 140, G03C 732

Patent

active

045554781

ABSTRACT:
A process of obtaining highly stable color images comprises use of an element which has a support having thereon at least one silver halide emulsion layer having associated therewith an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X. In this structure, LIG is a ligand which is capable of complexing with metal ions (e.g. ferrous ions) to form a metal complex dye, and X is a group which, as a function of silver halide development, is cleaved from LIG. A color image is formed by developing the described element after imagewise exposure with a developing agent to imagewise cleave the bond between the LIG and X, and treating the developed element with metal ions (e.g. ferrous ions) to form a metal complex dye image.

REFERENCES:
patent: 2533182 (1950-12-01), Sargent
patent: 4142891 (1979-03-01), Baigrie et al.

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