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US 4,537,857 AGranted
Silver halide photographic light-sensitive material
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsShun Takada, Kaoru Onodera, Takashi Kadowaki
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Abstract
A silver halide light-sensitive material having a support and at least one silver halide emulsion is provided. The silver halide emulsion layer contains in combination at least one cyan coupler of Formula (I) and at least one cyan coupler of Formula (II).
Claims20
A silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing in combination at least one of those cyan couplers having the following Formula [I] and at least one of those cyan couplers having the following Formula [II]:
- wherein R.sub.1 is an aryl radical, a cycloalkyl radical or a heterocyclic radical;
- R.sub.2 is an alkyl radical, a phenyl radical, or R.sub.8 --X-R.sub.9 --.sub.n wherein R.sub.8 represents an alkyl or aryl radical, R.sub.9 represents an alkylene radical, n represents an integer of 0 to 5, and X represents a divalent radical selected from the group consisting of --O--, --CO--, --COO--, --OCO--, --SO.sub.2 NR'--, --NR'SO.sub.2 NR"--, --S--, --SO-- and --SO.sub.2 -- wherein R' and R" represent an alkyl radical;
- R.sub.3 is a hydrogen atom, a halogen atom, an alkyl radical or an alkoxy radical;
- and Z.sub.1 is a hydrogen atom, a halogen atom, or a radical that can be split off by the reaction of said coupler with the oxidized product of an aromatic primary amine-type color devloping agent, ##STR16## wherein R.sub.4 is an alkyl radical or ##STR17## wherein R.sub.11 and R.sub.12 may be either the same or different from each other and each is a hydrogen atom, an alkyl radical or an alkoxy radical, provided that the sum of the carbon atoms of R.sub.11 and R.sub.12 is from 8 to 16, R.sub.13 is a hydrogen atom or an alkyl radical, and m is an integer of 0 to 2;
- R.sub.5 is an alkyl radical;
- R.sub.6 is a hydrogen atom, a halogen atom, or an alkyl radical;
- and Z.sub.2 is a hydrogen atom, a halogen atom, or a radical that can be split off by the reaction of said coupler with the oxidized product of an aromatic primary amine-type color developing agent.
4 more elements
Dependencies are inferred from the claim text.