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AssigneeKonishiroku Photo Ind. Co., Ltd.
InventorsNobuaki Kagawa, Noboru Fujimori, Shigeo Tanaka, Kaoru Onodera
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A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that the said silver halide comprises silver halide grains containing at least 80 molar % of silver chloride and at least one of merocyanine dyes having the formula ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl group, an alkenyl group or an aryl group provided that at least one of R.sub.1 and R.sub.2 is an alkyl or aryl group having a sulfo group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 individually represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a phenyl group and any one pair of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.1 and R.sub.6 or R.sub.4 and R.sub.5 may joint each other to form a ring; X is an oxygen atom, a sulfur atom or a selenium atom; and Y is an oxygen atom, a sulfur atom or a selenium atom provided that at least one of X and Y represents a selenium atom.
A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support characterized in that silver halide in said emulsion layer comprises silver halide grains containing at least 80 molar % of silver chloride and at least one merocyanine dye having the formula (I) ##STR27## wherein R.sub.1 is selected from the group consisting of an alkyl group, an alkenyl group and an aryl group and R.sub.2 is selected from the group consisting of an alkyl having a sulfo substituent and an aryl having a sulfo substituent;
Dependencies are inferred from the claim text.