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Title:
SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
Document Type and Number:
Japanese Patent JPH11109580
Kind Code:
A
Abstract:

To obtain a high coloring density and to improve the aging stability of a picture, to especially reduce a generation of stain at a non-colored part and to make improvable a deterioration of a picture quality due to coating trouble, by incorporating a specified reducing agent for color development and a dye forming coupler and also incorporating a mordant and a nonionic surface active agent into a structural layer.

At least one kind of a reducing agent for color development expressed by formula R1-NHNH-X-R2 and at least one kind dyestuff forming coupler are incorporated into at least one layer of photography structural layers, and also at least one kind of a mordant and nonionic surface active agent are incorporated into at least one layer of the photography structural layers. In the formula, R1 is an aryl group or heterocyclic group, R2 is an alkyl group, alkenyl group, etc., X is -SO2-, -CO-, -COCO-, or the like R3 is hydrogen atom or a group the same as R2. An aryl group of 6-14C, for example phenyl and naphthyl, is exemplified preferably as the aryl group of R1. A satd. or unsatd. five-seven membered ring containing at least one among nitrogen, oxygen and selenium is preferable as a heterocycle of R1.


Inventors:
SATO KOICHI
NISHIJIMA TOYOKI
Application Number:
JP26861997A
Publication Date:
April 23, 1999
Filing Date:
October 01, 1997
Export Citation:
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Assignee:
KONISHIROKU PHOTO IND
International Classes:
G03C7/00; G03C1/42; G03C7/392; (IPC1-7): G03C7/392; G03C1/42; G03C7/00