Processing both low and high silver photographic materials in a

Details Processing both low and high silver photographic materials in a Processing both low and high silver photographic materials in a

1997-11-13

1999-02-16

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430373, 430399, 430414, 430943, G03C 7407

Patent

active

058718915

ABSTRACT:
A processing method can be used to develop sequentially both low silver and relatively high silver photographic materials in the same processor. The method includes a development step for each type of material, in any order, with a developer solution adapted for both development steps. When the lower silver photographic materials are developed, the developer solution also contains an oxidizing agent to render it a redox developer/amplifier solution. The oxidizing agent is removed or inactivated when the relatively high silver photographic materials are processed with the same developer solution.

REFERENCES:
patent: 4219615 (1980-08-01), Sakai
patent: 5006439 (1991-04-01), Wernicke et al.

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