Color developing agent, processing liquid composition and proces

Details Color developing agent, processing liquid composition and proces Color developing agent, processing liquid composition and proces

1991-06-11

1993-11-23

Van Le, Hoa

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430435, 430464, 430484, 546226, 548538, 564 47, G03C 7407

Patent

active

052643310

ABSTRACT:
There are provided p-phenylenediamine color developing agent such as ##STR1## which makes it possible to form a yellow dye having a color image fastness to light while its ordinary photographic properties such as the developing activity and hue are kept. A processing liquid composition for a silver halide color photosensitive material comprises the p-phenylenediamine color developing agent and a pH buffering agent, and has a pH of 9 to 12. A process for forming a color image of claim comprises color-developing an image-wise exposed silver halide color photographic material with the processing liquid composition at a temperature of 30.degree. to 45.degree. C. for 20 seconds to 4 minutes.

REFERENCES:
patent: 3061641 (1962-10-01), Wright et al.
patent: 4008272 (1977-02-01), Kalopissis et al.
patent: 4629467 (1986-12-01), Clousen et al.
patent: 5006439 (1991-04-01), Wernicke et al.

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