Patent ID: 6132943
Filing Date: 2000-10-17
Classification: G03C

Abstract:
A multilayer silver halide color photographic element comprising a support bearing a light-sensitive silver halide emulsion layer and a non-diffusible yellow-colored magenta dye-forming masking coupler of the following formula ##STR81## wherein COUP is a magenta dye-forming coupler having the azo group attached to its coupling position;q is an integer of from 0 to 3, and each R' independently represents a substituent group or two R' groups together complete a ring of from 5-7 atoms;m is 1 or 2, and DG represents a substituent of the formula ##STR82## where each L.sup.1 represents a divalent linking group;each k is either 0 or 1;each L.sup.2 represents --NHSO.sub.2 --, --NHCO--, --SO.sub.2 NH--, or --CONH--;each Z represents --SO.sub.3 M or --PO.sub.3 M, where M represents H or a counter ion; andeach n represents an integer of from 1 to 5;with the provisos that each DG substituent group, when present, is located in the 4- or 6-position meta to the 2-hydroxyl substituent on the arylazo group, and that when at least one L.sup.1 or L.sup.2 group comprises an --NHSO.sub.2 -- or --SO.sub.2 NH-- group then the total number of Z group substituents on the coupler is at least 2, and when no L.sup.1 or L.sup.2 group comprises an --NHSO.sub.2 -- or --SO.sub.2 NH-- group then the total number of Z group substituents on the coupler is at least 3, and if k is 0 for a DG substituent group then the L.sup.2 group for that DG substituent is either --NHSO.sub.2 -- or --NHCO--.