Color photographic silver halide material
AssigneeAgfa-Gevaert
InventorsBruno Mucke, Franz Moll
Life of this patent
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Abstract
Color photographic silver halide material in which at least one layer contains a silver halide emulsion with 95 to 100 mol % of chloride which has been optimally ripened with a combination of at least one sulphur ripening body and at least one compound of the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 denote, independently of one another, hydrogen or alkyl, and X.sup..crclbar. denotes an anion, combines excellent sensitivity with low fog and steep gradation, particularly in the threshold and shoulder region.
Claims7
Photographic silver halide material containing at least one blue sensitive layer with which a yellow coupler is associated, at least one green sensitive layer with which a magenta coupler is associated and at least one red sensitive layer with which a cyan coupler is associated, at least one layer containing a silver halide emulsion in which from 95 to 100 mol% of the halide is chloride, which emulsion is ripened to optimum sensitivity with a combination of at least one sulphur ripening compound and at least one compound corresponding to the following formula ##STR15## wherein R.sub.1, R.sub.2 and R.sub.3 denote, independently of one another, hydrogen or alkyl and X.crclbar. denotes an anion.
Dependencies are inferred from the claim text.