Photographic recording material containing a hydroquinone diether compound
AssigneeAgfa NV
InventorsJorg Hagemann, Ralf Weimann, Erich Wolff, Johannes Sobel
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AssigneeAgfa NV
InventorsJorg Hagemann, Ralf Weimann, Erich Wolff, Johannes Sobel
Estimating the term…
A color-photographic recording material comprising at least one red-sensitive silver halide emulsion layer associated with a cyan coupler, at least one green-sensitive silver halide emulsion layer associated with a magenta coupler, and at least one blue-sensitive silver halide emulsion layer associated with a yellow coupler, at least one layer of the material containing a hydroquinone diether compound having the following formula I and optionally at least one compound having one of the formulae II, III, IV, V, SA and SB given in the description, characterized by increased light stability of the image colorants produced during chromogenic development, ##STR1## In the formula: R.sup.1 denotes alkyl, cycloalkyl or aryl; R.sup.2 denotes H, alkyl; R.sup.3, R.sup.4 denote H, alkyl, cycloalkyl, aryl, halogen, alkoxy, aroxy, acyloxy, alkylthio, arylthio, acyl, sulphonyl, sulphamoyl, acylamino, sulphonylamino, nitro; R.sup.5 denotes H, acyl, alkyl; X denotes --O-- or --NR.sup.6 --; R.sup.6 denotes H or alkyl, and n denotes O or an integer from 1 to 3.
A color photographic recording material comprising at least one red-sensitive silver halide emulsion layer having associated to it a cyan coupler, wherein said cyano coupler is present in the red-sensitive silver halide emulsion or in an adjacent binder layer, at least one green-sensitive silver halide emulsion layer having associated to it a magenta coupler, wherein said magenta coupler is present in the green-sensitive silver halide emulsion or in an adjacent binder layer, and at least one blue-sensitive silver halide emulsion layer having associated to it a yellow coupler, wherein said yellow coupler is present in the blue-sensitive silver halide emulsion or in an adjacent binder layer, the material containing a hydroquinone diether compound in at least one of said light-sensitive silver halide emulsion layers or at least one of said binder layers, characterised in that the hydroquinone diether compound corresponds to the following formula:
Dependencies are inferred from the claim text.