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US 5,328,819 AGranted
Silver halide photographic material containing isomethine dyes
AssigneeFuji Photo Film Co., Ltd.
InventorsShigeru Ohno, Yukio Miyaki, Shigeru Yamazaki
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AssigneeFuji Photo Film Co., Ltd.
InventorsShigeru Ohno, Yukio Miyaki, Shigeru Yamazaki
Estimating the term…
An azomethine dye represented by the following general formula (I) ##STR1## wherein A represents a dye residue formed by removing one hydrogen atom from an indophenol or indoaniline dye; L represents a divalent bonding group; and Z represents a non-metallic atomic group required for forming a three-membered to eight-membered heterocyclic ring together with N, provided that a carbonyl group is not directly bonded to N in the heterocyclic ring. Also disclosed is a silver halide photographic material having an emulsion layer with a covering power of at least 60, and wherein the silver halide photographic material contains at least one member of the dyes of general formula (I) in such an amount that an increase in transmission density in unexposed areas caused by the incorporation of the dye therein after development is not more than 0.06.
A silver halide photographic material comprising a support having on at least one side thereof at least one silver halide photographic emulsion layer, wherein said silver halide emulsion layer has a covering power of at least 60, and wherein a dye of the following general formula (I) is contained in said silver halide emulsion layer or in another hydrophilic layer, or in both of said layers, in an amount of 1.times.10.sup.-7 to 1.times.10.sup.-4 mol/m.sup.2 :
The silver halide photographic material of claim 3, wherein the dye residue is formed from a compound represented by the following formula (A-1):
Dependencies are inferred from the claim text.