Color photographic recording material containing a coupler releasing a photographically active compound
AssigneeAgfa-Gevaert
InventorsPeter Bergthaller, Thomas Kruger, Rudolf Stolzenburg, Dirk Hubner
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Abstract
High edge effects and interimage effects are obtained when DIR couplers of formula I are used in color photographic silver halide materials. ##STR1## In Formula I, R.sup.1 denotes alkyl, for example C.sub.4 H.sub.9 -t, aryl, for example p-alkoxyphenyl, NH-aryl or NH--NH--R.sup.3 ; R.sup.2 denotes H, halogen, e.g. chlorine, alkoxy, alkylthio or NH--R.sup.4 ; R.sup.3 and R.sup.4 denote acyl; X denotes the residue of a photographically active compound containing a monocyclic 1,2,3- or 1,2,4-triazole ring, TIME denotes a linking member and n denotes 0 or 1.
Claims7
Colour photographic recording material having at least one light sensitive silver halide emulsion layer and, associated therewith, a coupler capable of releasing a photographically active compound, wherein the coupler corresponds to the following general formula I ##STR75## wherein R.sup.1 denotes alkyl, aryl, NH-aryl or NH-NH-R.sup.3;
- R.sup.2 denotes H, halogen, alkoxy, alkylthio or NH-R.sup.4;
- R.sup.3 and R.sup.4 denote acyl;
- X denotes the residue of a photographically active compound containing a monocyclic 1,2,3- or 1,2,4-triazole ring;
- TIME denotes a linking member which is released together with the attached residue X when the coupler reacts with the oxidation product of a colour developer and in turn releases the residue X as photographically active compound under the conditions of development;
- n denotes 0 or 1.
Colour photographic recording material having at least one predominantly blue sensitive silver halide emulsion layer unit with which at least one yellow coupler is associated, one predominantly green sensitive silver halide emulsion layer with which at least one magenta coupler is associated and one predominantly red sensitive silver halide emulsion layer with which at least one cyan coupler is associated, wherein at least one partial layer of the predominantly green sensitive silver halide emulsion layer unit or of the predominantly red sensitive silver halide emulsion layer unit contains a DIR coupler corresponding to the following formula I:
- ##STR77## wherein R.sup.1 denotes alkyl, aryl, --NH--aryl or --NH--NH--R.sup.3;
- R.sup.2 denotes H, halogen, alkoxy, alkylthio or --NH--R.sup.4;
- R.sup.3 and R.sup.4 denote acyl;
- X denotes the residue of a photographically active compound containing a monocyclic 1,2,3- or 1,2,4-triazole ring;
- TIME denotes a linking member which is released together with the residue X attached thereto when the coupler reacts with the oxidation product of a colour developer and which in turn releases the residue X as photographically active compound under the conditions of development and
- n denotes 0 or 1.
Dependencies are inferred from the claim text.