Light-sensitive silver halide color photographic material
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsTakeo Koitabashi, Hideo Akamatsu
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Abstract
A light-sensitive silver halide photographic material is disclosed which contains a support and a red-sensitive layer. The red-sensitive layer contains at least one sensitizing dye selected from a particular group of sensitizing dyes and at least one sensitizing dye selected from a second group of sensitizing dyes and at least one of a particular group of compounds.
Claims15
A light-sensitive silver halide color photographic material comprising a support and a red sensitive layer which comprises, in the layer, at least one of the sensitizing dyes represented by the following formula I, at least one of the sensitizing dyes represented by the following formula II and at least one compound represented by the following formula III:
- ##STR13## wherein Z is the non-metalic atoms necessary to form a benzene or naphthalene ring which may have substituents selected from the group consisting of lower alkoxy, halogen, lower alkyl, and phenyl;
- Y is sulfur or selenium;
- R.sub.1 and R.sub.2 are individually alkyl, sulfoalkyl, carboxyalkyl, alkoxyalkyl, hydroxyalkyl or aralkyl and at least one of R.sub.1 and R.sub.2 is carboxyalkyl or sulfoalkyl;
- R.sub.3 is alkyl, acyloxyalkyl, aryl or aralkyl;
- R.sub.4 is hydrogen or halogen;
- R.sub.5 is halogen, --COOR', ##STR14## --CF.sub.3 or --SO.sub.2 CF.sub.3 (in which R' is alkyl of 1 to 4 carbon atoms);
- X is an anion and n is 0 or 1, and an inner salt is formed when n is 0;
- ##STR15## wherein Y.sub.1 and Y.sub.2 are individually sulfur or selenium;
- R.sub.6 and R.sub.7 individually represent a substitutent selected from the same group as defined in R.sub.1 and R.sub.2 ;
- R.sub.8 is lower alkyl;
- R.sub.9 and R.sub.10 are individually hydrogen, halogen, alkyl, alkoxy or aryl;
- X is an anion and n is 0 or 1, and an inner salt is formed when n is 0;
- ##STR16## wherein R.sub.11 and R.sub.12 are individually selected from the group consisting of hydrogen, halogen, lower alkyl, alkoxy, aryl, aralkyl, cyano, amino, lower alkyl-substituted amino, carbonylalkyl, sulfoalkyl, acyloxyalkyl or hydroxyalkyl;
- R.sub.13 is lower alkyl, aralkyl, hydroxyalkyl, carboxyalkyl, sulfoalkyl or lower alkoxy alkyl;
- X is an anion;
- and n is 0 or 1, provided that an inner salt is formed when n is 0.
A light-sensitive silver halide color photographic material comprising a support and a red-sensitive layer which comprises, in the layer, at least one of the sensitizing dyes represented by the following formula I, at least one of the sensitizing dyes represented by the following formula II and at least one compound selected from the group consisting of compounds represented by the following formulas (III-1 ) to (III-16):
- ##STR17## wherein Z is non-metalic atoms necessary to form a benzene or naphthalene ring which may have substituents selected for the group consisting of lower alkoxy, lower alkyl, halogen, and phenyl;
- Y is sulfur or selenium;
- R.sub.1 and R.sub.2 are individually alkyl, sulfoalkyl, carboxyalkyl, alkoxyalkyl, hydroxyalkyl or aralkyl and at least one of R.sub.1 and R.sub.2 is carboxyalkyl or sulfoalkyl;
- R.sub.3 is alkyl, acyloxyalkyl, aryl or aralkyl;
- R.sub.4 is hydrogen or halogen;
- R.sub.5 is halogen, --COOR', ##STR18## --CF.sub.3 or --SO.sub.2 CH.sub.3 (in which R' is alkyl of 1 to 4 carbon atoms, R" is hydrogen or alkyl or 1 to 4 carbon atoms);
- X is an anion and n is 0 or 1, and an inner salt is formed when n is 0;
- ##STR19## wherein Y.sub.1 and Y.sub.2 are individually sulfur or selenium;
- R.sub.6 and R.sub.7 individually represent a substituent selected from the same group as defined in R.sub.1 and R.sub.2 ;
- R.sub.8 is lower alkyl;
- R.sub.9 and R.sub.10 are individually hydrogen, halogen, alkyl, alkoxy or aryl;
- X is an anion and n is 0 or 1, and an inner salt is formed when n is 0;
- ##STR20##
Dependencies are inferred from the claim text.