Process and composition for fixing black-and-white silver halide

Details Process and composition for fixing black-and-white silver halide Process and composition for fixing black-and-white silver halide

1991-12-06

1994-03-29

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Stabilizing

430428, 430455, 430459, 430533, 430939, G03C 518, G03C 526, G03C 538, G03C 176

Patent

active

052983730

ABSTRACT:
Silver halide black-and-white photosensitive material is processed with a fixer which contains 0.5 to 2.0 mol/liter of a thiosulfate and 0.003 to 0.3 mol/liter of a meso-ionic compound, the moles of the meso-ionic compound divided by the moles of the thiosulfate being from 0.003 to 0.2. The fixer accelerates fixing speed, enabling rapid processing of photographic material.

REFERENCES:
patent: 4378424 (1983-03-01), Atland et al.
patent: 4861702 (1989-08-01), Suzuki et al.
patent: 4939075 (1990-07-01), Bergthaller et al.
patent: 5026629 (1991-06-01), McGuckin et al.
patent: 5066569 (1991-11-01), Nagashima et al.
U.S. Statutory Invention Registration H953, Goto et al., Aug. 1991, class 430, subclass 429.
Research Disclosure 20430, Apr. 1981, pp. 159-160.

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