Color photographic silver halide material
AssigneeAgfa-Gevaert
InventorsBeate Weber, Markus Geiger, Gunter Helling, Jorg Hagemann
Life of this patent
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Abstract
A color photographic silver halide material in which at least one coupler is dissolved or dispersed in a coupler solvent corresponding to the following formula: ##STR1## in which R.sub.1 is alkyl, alkenyl, cycloalkyl or cycloalkenyl, R.sub.2 and R.sub.3 are alkylene or alkenylene, X is CO, NHCO or SO.sub.2, n is 0 or 1 and l, m are numbers of 1 to 5, is distinguished by steep gradation and improved maximum density.
Claims6
A color photographic silver halide material which comprises at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least the magenta coupler being dissolved or dispersed in a coupler solvent, wherein said couplet solvent is a compound corresponding to the following formula:
- ##STR17## in which R.sub.1 is a linear alkyl or alkenyl, containing at least 8 carbon atoms
- R.sub.2 and R.sub.3 are identical or different and are linear or branched C.sub.2 -C.sub.8 -alkenyl,
- X is CO, NHCO or SO.sub.2.
Dependencies are inferred from the claim text.