Silver halide color photographic material containing an imidazotriazole cyan coupler
AssigneeFuji Photo Film Co., Ltd.
InventorsYasuhiro Shimada, Kozo Sato
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AssigneeFuji Photo Film Co., Ltd.
InventorsYasuhiro Shimada, Kozo Sato
Estimating the term…
A silver halide color photographic material containing one or more imidazotriazole cyan couplers each having an electron attracting group with a .sigma.p of 0.35 or more in at least one layer on the support. The material provides a cyan color image having a sharp light absorption characteristic absorbing light having a relatively long wavelength falling within a narrow wavelength range. The imidazotriazole cyan coupler is of the following structural formula (I): ##STR1## where R.sub.1 represents a hydrogen atom or a substituent; R.sub.2 represents an electron attracting group having a Hammett's constant value .sigma.p of 0.35 or ore; X represents a hydrogen atom or a group released by coupling with an oxidation product of an aromatic primary amine color developing agent; and R.sub.1 or R.sub.2 may also be a divalent group forming a dimer or higher polymer, or they each may be bonded to a polymer chain to form a homopolymer or copolymer.
A silver halide color photographic material comprising a support having thereon at least one red-sensitive silver halide emulsion layer containing at least one imidazotriazole cyan coupler of the following formula (I):
Dependencies are inferred from the claim text.