Silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorsAkihiko Ikegawa, Masayuki Kuramitsu, Masaki Okazaki
Life of this patent
Estimating the term…
Abstract
Disclosed is a novel silver halide photographic material is provided comprising a support having thereon (a) a layer containing at least one methine compound represented by the following general formula (I) and (b) a layer containing at least one methine compound represented by the following general formula (II), (III), (IV) or (V): ##STR1## wherein the variables in the formulas are defined in the detailed description. In a preferred embodiment, the silver halide photographic material comprises at least one methine compound represented by general formula (I) and at least one methine compound represented by general formula (II) or (V) in the same layer.
Claims9
A silver halide photographic material comprising a support having thereon (a) a layer containing at least one methine compound represented by the following general formula (I) and (b) a layer containing at least one methine compound represented by the following general formula (V):
- ##STR11## wherein R.sup.1 represents --(CH.sub.2).sub.r --CONHSO.sub.2 --R.sup.3, --(CH.sub.2).sub.s --SO.sub.2 NHCO--R.sup.4, --(CH.sub.2).sub.t --CONHCO--R.sup.5 or --(CH.sub.2).sub.u --SO.sub.2 NHSO.sub.2 --R.sup.6 in which R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents an alkyl, alkoxy or amino group, r, s, t and u each represents an integer of 1 to 5, and R.sup.2 has the same meaning as R.sup.1 or represents an alkyl group other than those represented by R.sup.1 ;
- Z.sup.1 and Z.sup.2 each represents a nonmetallic atom group required to form a benzothiazole nucleus or a benzoselenazole nucleus;
- L.sub.1, L.sub.2 and L.sub.3 each represents a methine group;
- X.sub.1 represents an anion;
- and j represents an integer required to adjust the charge in the molecule to 0;
- ##STR12## wherein R.sup.13 and R.sup.14 each has the same meaning as R.sup.2 ;
- Z.sup.9 and Z.sup.10 each has the same meaning as Z.sup.1 ;
- L.sub.13 and L.sub.14 each has the same meaning as L.sub.1 ;
- Q represents a non-metallic atom group required to form a 5-membered or 6-membered carbon or heterocyclic group;
- and A represents an oxygen or sulfur atom.
Dependencies are inferred from the claim text.