Cyan image forming method and silver halide color photographic material containing cyan coupler
US5270153A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1991 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Nov 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/383
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing at least one 1H-pyrrolo[2,1-c][1,2,4]triazole cyan coupler represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a substituent, provided that at least one of R.sub.1 and R.sub.2 is an electron withdrawing group which has a Hammett's substituent constant .sigma.p value of 0.15 or more; R.sub.1 and R.sub.2 may be bonded to form a ring; and X represents a hydrogen atom or a substituent capable of being released upon coupling with an oxidation product of an aromatic primary amine color developing agent; said coupler may form a bis-compound or or a polymer at R.sub.1, R.sub.2, R.sub.3 or X; and a cyan image forming method comprising imagewise exposing a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and subjecting the exposed photographic material to color development with an aromatic primary amine color dveloping agent at the presence of the above-described 1H-pyrrolo[…
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