Photographic color developer solution and processing method...

Details Photographic color developer solution and processing method... Photographic color developer solution and processing method...

2007-02-06

2007-02-06

Le, Hoa Van (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

C430S468000, C430S357000, C430S435000

Reexamination Certificate

active

10980924

ABSTRACT:
A color developer solution is disclosed, comprising p-phenylenediamine type color developing agents, wherein 2% to 35% by weight of the p-phenylenediamine color developing agents is accounted for by a N-hydroxyalkyl-substituted p-phenylenediamine color developing agent, and the color developer solution further comprising a compound represented by the following formula (1) or (2):

REFERENCES:
patent: 4997749 (1991-03-01), Wernicke et al.
patent: 5063143 (1991-11-01), Hirose et al.
patent: 5063144 (1991-11-01), Wernicke
patent: 5466565 (1995-11-01), Shigemori et al.
patent: 330-035 (1989-08-01), None
patent: 0 468 781 (1992-01-01), None
patent: 0 621 507 (1994-10-01), None

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