Method for development of silver halide light-sensitive black an

Details Method for development of silver halide light-sensitive black an Method for development of silver halide light-sensitive black an

1991-09-19

1993-08-03

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430441, 430445, 430456, 430487, 430489, 430611, 430963, G03C 518

Patent

active

052328236

ABSTRACT:
Disclosed is a method for the development of a silver halide light-sensitive black and white material, wherein a silver halide light-sensitive material is developed in the presence of at least one compound represented by the following general formula (I): ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, an ammonium group or a group which is cleaved under alkaline conditions; L represents a bivalent organic group comprising an alkylene group, an alkenylene group, an ether group, a thioether group, --CO--, --CS-- or --NR-- (wherein R represents a hydrogen atom or an alkyl group) alone or a combination of two or more of them; X represents an amino group, an ammonio group, a hydroxyl group or a heterocyclic group; and n represents 0 or 1.

REFERENCES:
patent: 4789627 (1988-06-01), Inoue et al.
patent: 4886738 (1989-12-01), Deguchi et al.
patent: 5057402 (1991-10-01), Shiba et al.

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