Spectrally sensitized silver halide emulsions

Details Spectrally sensitized silver halide emulsions Spectrally sensitized silver halide emulsions

1990-11-02

1992-05-26

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Laser or radiation exposure other than visible light

430578, 430591, 430593, G03C 126

Patent

active

051167220

ABSTRACT:
Method of forming a silver image by exposing a silver halide emulsion spectrally sensitized with a trinuclear merocyanine dye to light of 600-690 nm and wet-processing the emulsion with aqueous developing or activating solution and fixing solution, thereby dissolving away said dye from the resulting silver-image-containing material, said trinuclear merocyanine dye comprising at least 2 water-solubilizing groups.

REFERENCES:
patent: 2493748 (1950-01-01), Brooker et al.
patent: 4814264 (1989-03-01), Kishida et al.

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