Method for forming a cyan dye image

Details Method for forming a cyan dye image Method for forming a cyan dye image

1980-05-01

1981-11-10

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430385, 430552, 430553, 430558, G03C 700

Patent

active

042999146

ABSTRACT:
A method for forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a cyan coupler of the following formula: ##STR1## in which R represents hydrogen atom or an alkyl group having a carbon number of one to twenty; R.sub.1 represents an alkylsulfonamide or alkylsulfamoyl group; R.sub.2 represents an alkyl, aryl group or a 5 or 6-membered heterocyclic group containing a nitrogen, oxygen or sulfur atom; R.sub.3 represents a hydrogen or halogen atom; X represents an alkylene, metaphenylene or orthophenylene group; Z represents a hydrogen atom or a split-off radical; and n has an integral value of one or two.

REFERENCES:
patent: 2484477 (1949-10-01), Weissberger et al.
patent: 2772162 (1956-11-01), Salminen et al.
patent: 3880661 (1975-04-01), Lau et al.
patent: 4124396 (1978-11-01), Osborn

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