Silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorHideo Furuuchi
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Abstract
A silver halide photographic material containing silver halide grains onto which a sensitizing dye in the first layer and a sensitizing dye or dyes in the second or after layers are multilayer-adsorbed, wherein the fluorescence life time of the dye or dyes in the second or after layers on the silver halide grain surface measured at a maximum wavelength of fluorescence spectrum is shorter than the fluorescence life time of the dye or dyes in a gelatin dry film measured at a maximum wavelength of fluorescence spectrum when the sensitizing dyes are multilayer-adsorbed onto the silver halide grain surface.
Claims10
A silver halide photographic material containing silver halide grains onto which a sensitizing dye in the first layer and a sensitizing dye or dyes in the second or after layers are multilayer-adsorbed, wherein the fluorescence life time of the dye or dyes in the second or after layers on the silver halide grain surface measured at a maximum wavelength of fluorescence spectrum is shorter than the fluorescence life time of the dye or dyes in a gelatin dry film measured at a maximum wavelength of fluorescence spectrum.
A silver halide photographic material containing silver halide grains onto which a sensitizing dye in the first layer and a sensitizing dye or dyes in the second or after layers are multilayer-adsorbed, wherein the value obtained by dividing the fluorescence yield of the dye or dyes in the second or after layers measured in a gelatin dry film by the fluorescence life time of the dye or dyes measured in a gelatin dry film at a maximum wavelength of fluorescence spectrum (a velocity constant of radiation deactivation) is 107 sec−1 or higher.
Dependencies are inferred from the claim text.