G - Physics – 03 – C
Patent
G - Physics
03
C
96/62
G03C 7/407 (2006.01) G03C 1/16 (2006.01) G03C 7/413 (2006.01)
Patent
CA 1306895
ABSTRACT Processing an imagewise exposed light-sensitive silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing silver halide grains which are sensitized with a sensitizing dye represented by general formula [I]: [I] Image (wherein, Z1 and Z2 independently represent a group of atoms necessary to complete a heterocyclic ring consisting of a thiazole, a benzothiazole, a selenazole, a benzo- selenazole, a naphthoselenazole, a benzimidazole, a naphtho- imidazole, a pyridine or a quinoline ring, wherein said heterocyclic ring may have a substituent; R1 and R2 are independently selected from a group consisting of an alkyl group, an alkenyl group and an aryl group; R3 is selected from a group consisting of hydrogen atom, a methyl group and an ethyl group; X1 is an anion and 1 is 0 or 1). Processing takes place with a color developer solution containing an aromatic primary amine color developing agent in the presence of at least one hydroxylamine derivative represented by general formula [II] or a water soluble acid salt thereof: [II] Image (wherein, R21 and R22 are independently selected from a group consisting of a hydrogen atom and an alkyl group having 1 to 4 carbon atoms which may have a substituent provided that R21 and R22 are not simultaneously hydrogen atoms and that R21 and R22 may be combined with each other to form a nitrogen-containing ring; and at least one nitrogen-containing heterocyclic mercapto-compound. This enables to reduce pollution load by removing benzyl alcohol from the color developer. By carrying out the color developing with a specific hydroxylamine derivative, the dye image is rapidly formed and the fog is restrained. In addition, this type of processing is associated with reduced sensitivity or gradation fluctuation due to a change of pH.
535122
Murai Kazuhiro
Ohbayashi Keiji
Onodera Kaoru
Konishiroku Photo Industry Co. Ltd.
Swabey Ogilvy Renault
LandOfFree
Method for processing silver halide photo-sensitive material 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 photo-sensitive material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for processing silver halide photo-sensitive material will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1308077