Method of processing a black-and-white silver halide photographi

Details Method of processing a black-and-white silver halide photographi Method of processing a black-and-white silver halide photographi

1998-09-23

2000-07-04

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430446, 430455, 430963, G03C 526

Patent

active

060836725

ABSTRACT:
A method of processing an exposed black-and-white silver halide light-sensitive photographic material has been disclosed, said method comprising the steps of developing in a developer solution, followed by fixing in a fixer solution, comprising a hardening agent, preferably a compound providing aluminum ions, and wherein, in running equilibrium conditions, said fixer solution has a pH of at least 4.3, further adding to said fixer a fixer replenisher at a rate of from 0 ml/m.sup.2 up to 300 ml/m.sup.2 ; followed by rinsing and drying, wherein rinsing between developing and fixing is excluded and wherein an .alpha.-ketocarboxylic acid structure in an amount of from 0 to 3 g per liter is present in the said fixer solution while starting processing or in the said fixer replenisher, characterized in that said developing step is performed in a developer comprising, in an amount of from 5 g up to 100 gram per liter, a developing agent corresponding to the formula (I), a precursor and/or a metal salt thereof given in the detailed description and in the claims hereinafter. Most preferably 1-ascorbic acid, iso-ascorbic acid or (tetramethyl) reductic acid is used as a developing agent.

REFERENCES:
patent: 5629138 (1997-05-01), Faranda et al.
patent: 5707790 (1998-01-01), Yanagisawa
patent: 5783379 (1998-07-01), Willems et al.

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