Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1987-02-09
1989-08-15
Shah, Mukund J.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430430, 430445, 430460, 430487, G03C 524, G03C 538, G03C 544
Patent
active
048574414
ABSTRACT:
A method of processing a silver halide-containing photosensitive material for color photography includes the silver-removing step in which silver which is formed by reduction in the color developing step is oxidized by a bleaching agent and further changed into a soluble silver complex by the action of a fixing agent. In this process, bleaching is carried out in both a bleaching bath and a bleach-fixing bath, and fixing is effected in the bleach-fixing bath. In the bleach-fixing bath, a stream of bleach-fixing solution is brought into contact with the emulsion coating surface of the color photosensitive material at a higher flow velocity than that of a stream of bleach-fixing solution which is circulated in the bath. The time for processing carried out in the bleaching bath is set so as to be shorter than the time for processing in a bleaching bath in a conventional method wherein removal of silver is effected by the combination of a bleaching bath and a fixing bath which involves no bleaching process, and also the total time for processing carried out in the bleaching and bleach-fixing baths is set so as to be shorter than the total time for processing in the bleaching and fixing baths in said conventional method. As bleaching and fixing agents, a ferric aminopolycarboxylic acid complex and a thiosulfate are particularly effectively employed, respectively.
REFERENCES:
patent: 3893895 (1975-07-01), Dehnert et al.
patent: 4563405 (1986-01-01), Ishikawa et al.
patent: 4578345 (1986-03-01), Ohno et al.
Abe Akira
Nakajima Junya
Otomo Ruyzi
Takase Haruo
Uenaka Kazushige
Fuji Photo Film Co. , Ltd.
Shah Mukund J.
LandOfFree
Method for processing silver halide-containing photosensitive ma does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for processing silver halide-containing photosensitive ma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for processing silver halide-containing photosensitive ma will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-121092