Photographic fixing composition containing an oxadiazolethione a

Details Photographic fixing composition containing an oxadiazolethione a Photographic fixing composition containing an oxadiazolethione a

1999-02-16

1999-12-28

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Fixer

430393, 430459, G03C 742

Patent

active

06007972&

ABSTRACT:
Color photographic silver halide elements, such as color films, can be rapidly fixed using a fixing composition containing a thiosulfate fixing agent, and certain sulfur-substituted oxadiazoles (that is oxadiazolethiones). Each of the components is present in specific amounts to effect rapid and efficient desilvering. The composition also includes predominantly ammonium cations (at least 50 mol %). Besides effective and rapid silver removal (less than 60 seconds), the fixing composition also minimizes residual dye stain from sensitizing dye aggregates within the photographic elements.

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Symposium on Photofinishing Technology (SPSE), Feb., 1990 (Las Vegas, NV).

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