| 摘要 |
<p>Photographic coupler compositions comprise a magenta dye-forming coupler and a hydroxy benzoate compound in an amount sufficient to increase the activity of the dye-forming coupler. The hydroxy benzoate compound is of the formula <CHEM> wherein the COOR1 substituent is located in the meta or para position with respect to the hydroxy group, R1 is selected from the group consisting of straight chain and branched chain alkyl groups, alkenyl groups and alkylene groups, and halogen-substituted straight chain and branched chain alkyl, alkenyl and alkylene groups, each R2 is a straight or branched chain alkyl or alkoxy group or a chlorine atom, and n is from 0 to 4, provided that the total number of carbon atoms in R1 and all R2's is from about 7 to about 24.</p> |
