Colour photographic silver halide material
AssigneeAgfa-Gevaert
InventorsJan Haller, Ralf Wirowski
Life of this patent
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Abstract
A color photographic silver halide material having a support, which material comprises at last one blue-sensitive, yellow-coupling silver halide emulsion layer and at least one geen-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, and which contains at least one masking coupler which has two chromophores which absorb in the wavelength range from 420 to 750 nm and are eliminable or decolorisable by coupling with the developer oxidation product, is distinguished by improved sensitivity associated with undiminished color purity.
Claims16
Color photographic silver halide material having a support, which material comprises at last one blue-sensitive, yellow-coupling silver halide emulsion layer and at least one green-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, characterised in that the material contains at least one masking coupler which has two chromophores which absorb in the wavelength range from 420 to 750 nm and are eliminable or decolorisable by coupling with the developer oxidation product.
Color photographic silver halide material according to claims 1 to 4, characterised in that it is a color negative film. 6. Color photographic silver halide material according to claims 1 to 5, characterised in that the masking coupler is used in a green-sensitive layer. 7. Color photographic silver halide material according to claims 1 to 5, characterised in that the masking coupler is used in a blue-sensitive layer.
Dependencies are inferred from the claim text.