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AssigneeAgfa-Gevaert
InventorsJoerg Siegel, Hans-Ulrich Borst, Peter Bell, Ralf Buscher, Johannes Willsau
Estimating the term…
A color photographic recording material having a film support and, arranged thereon, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler and optionally further non-photosensitive layers contains, in addition to conventional sensitizing dyes, in at least one of the red-sensitive silver halide emulsion layers thereof and in at least one of the green-sensitive emulsion layers thereof at least one cyanine dye in each layer having an absorption maximum in a methanolic solution in the range from 515 to 550 nm, wherein the absorption maxima of the additional cyanine dye in the red-sensitive silver halide emulsion layer and of the additional cyanine dye in the green-sensitive layer, in each case measured in a methanolic solution, are no more than 10 nm and preferably no more than 5 nm apart. In a preferred embodiment, the additional cyanine dye in the red-sensitive silver halide emulsion layer is identical to the additional cyanine dye in the green-sensitive silver halide emulsion layer. The recording material exhibits improved sensitivity and improved color reproduction.
A color photographic recording material which comprises a film support and, arranged thereon, at least one red-sensitive silver halide emulsion layer containing a cyan coupler and a red-sensitizing dye, at least one green-sensitive silver halide emulsion layer containing a magenta coupler and a green sensitizing dye, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler and a blue-sensitizing dye and optionally further non-photosensitive layers, wherein at least one of the red-sensitive silver halide emulsion layers thereof and at least one of the green-sensitive silver halide emulsion layers thereof each contain, in addition to green and red sensitizing dyes, at least one additional cyanine dye having an absorption spectrum in a methanolic solution in the range from 515 to 550 nm, wherein the absorption maximum of the additional cyanine dye in the red-sensitive silver halide emulsion layer and the absorption maximum of the additional cyanine dye in the green-sensitive silver halide emulsion layer, in each case measured in a methanolic solution, are no more than 10 nm apart.
Dependencies are inferred from the claim text.