Novel bicyclic pyrazolo couplers containing a ballast group of formula (I):
are useful in photographic materials and processes. The couplers exhibit increased coupling activity, and provide formation of dyes having improved maximum magenta image dye density, hue, and dye light stability when employed in color photographic materials and processes.
含有式 (I) 镇流器基团的新型双环
吡唑偶联剂:
可用于照相材料和工艺。这些
偶联剂具有更高的偶联活性,在彩色照相材料和工艺中使用时,可形成具有更高的最大品红图像
染料密度、色调和
染料光稳定性的
染料。