Light-sensitive super-sensitized silver halide color photographic materials
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsTakeo Koitabashi, Hideo Akamatsu, Noboru Fujimori
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Abstract
A light-sensitive silver halide color photographic material comprising at least a support and a red-sensitive, silver halide-containing layer containing at least one sensitizing dye of the following general formula I ##STR1## AND AT LEAST ONE SENSITIZING DYE OF THE FOLLOWING GENERAL FORMULA II ##STR2##
Claims11
A light-sensitive silver halide color photographic material comprising at least a support and a red-sensitive, silver halide-containing layer which comprises at least one sensitizing dye of the following general formula (I) ##STR12## wherein Z is a non-metallic atom group necessary to form a non-substituted naphthalene and a non-substituted or alkoxy-substituted benzene ring;
- Y is sulfur or selenium;
- R.sub.1 and R.sub.2 are individually alkyl, sulfoalkyl, carboxy alkyl, alkoxy alkyl, hydroxy alkyl or aralkyl;
- R.sub.3 is alkyl, acyloxyalkyl, aryl or aralkyl and at least one of R.sub.1 and R.sub.2 is carboxyalkyl or sulfoalkyl;
- R.sub.4 is hydrogen or halogen;
- R.sub.5 is trifluoroalkyl or trifluoroalkylsulfonyl;
- X is an anion and n is zero or 1, and an inner salt is formed when n is zero;
- and at least one sensitizing dye of the following general formula (II) ##STR13## wherein Y.sub.1 and Y.sub.2 are individually sulfur or selenium;
- R.sub.6 and R.sub.7 are individually a substituent selected from the same groups
- as defined as to R.sub.1 and R.sub.2 ;
- and at least one of R.sub.6 and R.sub.7 is carboxyalkyl or sulfoalkyl;
- 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 zero or 1, provided that an inner salt is formed when n is zero.
Dependencies are inferred from the claim text.