Method for forming direct positive color image using an N-hydrox

Details Method for forming direct positive color image using an N-hydrox Method for forming direct positive color image using an N-hydrox

1989-05-01

1990-02-06

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430435, 430467, 430547, 430596, 430940, G03C 716

Patent

active

048988073

ABSTRACT:
A method for forming a direct positive color image by subjecting an inner latent image type light-sensitive silver halide color photographic material for formation of a direct positive color image, having at least one light-sensitive emulsion layer containing inner latent image type silver halide grains which have not been previously fogged on the grain surfaces to color developing processing after image exposure, which comprises developing an inner latent image type light-sensitive silver halide color photographic material for formation of a direct positive color image wherein a silver halide emulsion in at least one light-sensitive emulsion layer consists substantially of a silver chlorobromide emulsion with the use of a color developing solution containing an N-hydroxyalkyl-substituted-p-phenylenediamine derivative at 30.degree. C. or higher for not longer than 150 seconds.
In accordance with the present invention, there can be provided a rapid and stable method of processing an inner latent image type light-sensitive material for formation of direct positive image by use of a color developer containing the color developing agent of the present invention, which can maintain constantly adequate photographic performance over a long term without suffering from influence by the change in the bromide ion concentration even when processed when reduced supplemental amount and is also little in generation of developing fog.

REFERENCES:
patent: 3335004 (1967-06-01), Wrisley et al.
patent: 3719492 (1973-03-01), Barr et al.
patent: 3761266 (1973-09-01), Milton et al.
patent: 3761276 (1973-09-01), Evans et al.
patent: 4322492 (1982-03-01), Kunitz et al.
patent: 4433050 (1984-02-01), Abe et al.
patent: 4440851 (1984-04-01), Tosaka et al.
patent: 4444871 (1984-04-01), Miyaoka et al.
patent: 4613563 (1986-09-01), Murai
Chem. Abstracts, vol. 8, No. 4.
H. Bottcher et al., "Modern Photographische Systeme", 1st ed., 1983, pp. 142-159.
T. H. James, "Theory of the Photographic Process", 4th Ed., 1977, pp. 408-411, 426-428.

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