Methods of providing color photographic image using acidic...

Details Methods of providing color photographic image using acidic... Methods of providing color photographic image using acidic...

2005-10-25

2005-10-25

Le, Hoa Van (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Treating with process composition between standard develop...

C430S393000, C430S430000

Reexamination Certificate

active

06958208

ABSTRACT:
Photographic processing of color photographic materials can be carried out using polyphosphonic acids or salts thereof in acidic “stop” solutions or wash solutions after color development. When used in acidic stop solutions, the polyphosphonic acid is preferably carried over into the bleaching solution to provide added stability of the bleaching agent. The acidic stop solutions can also include organic thiols that are used as bleaching accelerators when carried over into the bleaching solutions.

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U.S. Appl. No. 10/376,717, (D-85230) filed Feb. 28, 2003, titled “Photographic Peracid Bleaching Composition, Processing Kit, and Method of Use” by Shirleyanne Haye et al. Now USP 6,703,192.

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