Process for development-processing silver halide light-sensitive

Details Process for development-processing silver halide light-sensitive Process for development-processing silver halide light-sensitive

1982-01-13

1983-07-05

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

430420, 430435, 430438, 430439, 430440, 430441, 430442, 430445, 430446, 430488, G03C 530

Patent

active

043919006

ABSTRACT:
A process for development-processing a silver halide photographic light-sensitive material is described, comprising processing with a developing solution containing 0.1 mol/liter or more of sulfite ion and at least one compound represented by formula (I) ##STR1## wherein n represents an integer of from 2 to 6; each of R.sub.1 and R.sub.2 represents hydrogen or an alkyl group having from 1 to 6 carbon atoms; and M represents hydrogen or an alkali metal atom.
According to the process, the generation of silver sludge and the formation of fog are prevented when a black-and-white photographic light-sensitive material is processed with a developing solution containing sulfates in a high concentration.

REFERENCES:
patent: 2403927 (1946-07-01), Kendall et al.
patent: 3335009 (1967-08-01), Rasch et al.
patent: 3352678 (1967-11-01), Nishio et al.
patent: 3545971 (1970-12-01), Barnes et al.
patent: 4132551 (1979-01-01), Pollet et al.

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