Method of processing black-and-white photographic materials

Details Method of processing black-and-white photographic materials Method of processing black-and-white photographic materials

1996-05-03

1998-04-07

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Regenerating image processing composition

430400, 430455, 430463, 430963, G03C 5395

Patent

active

057363048

ABSTRACT:
A method of processing silver halide black-and-white photographic material in a processing machine which transports the material to be processed, through several processing tanks. The processing machine includes at least one tank with fixing ability and at least one tank which is either a wash or stabilizer tank. The wash or stabilizer tank furthest from the fixer tank(s) is replenished with wash or stabilizer solution. Outflow from the wash tank or stabilizer tank nearest the fixer tank(s) is passed to the nearest fixer tank together with a fixer replenishment solution to maintain the fixer's working composition. The total submersion time in the tank(s) having fixing ability is less than 25 seconds and the ratio of coated silver in the unprocessed photographic material (in g/m.sup.2) to the sum of the rates of addition to the fixer tank (in l/m.sup.2) of the wash outflow and fixer replenishment solution is greater than 10 g/l.

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Database WPI, Section Ch, Week 8602, Derwent Publications Ltd., London, GB; Class G06, AN 86-010682, XP002012300 & JP-A-60 235 133 (Konishiroku Photo Ind. Co. Ltd.), 21 Nov. 1985 (Abstract).

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