The invention provides a light sensitive photographic silver halide emulsion layer having associated therewith a magenta coupler having formula I: ##STR1## wherein: R represents a ballasted monosubstituted amino group which enables the coupler to form, upon development with 4-amino-3-methyl-N-ethyl-N-(2-hydroxyethyl)aniline sulfate developing agent, a magenta dye having a wavelength of maximum absorbance of 545 nm or greater; and X represents hydrogen or a coupling-off group. The resulting dye has an improved spectral absorption curve.
本发明提供了一种与公式I相关联的品红偶合剂的光敏感感光
银卤乳剂层:##STR1## 其中,R代表一个带有负载的单取代
氨基团,使得在与4-
氨基-3-甲基-N-乙基-N-(2-羟乙基)
苯胺硫酸盐显影剂一起显影后,偶合剂能够形成一个最大吸收波长为545纳米或更大的品红
染料;X代表氢或偶合脱离基团。所得到的
染料具有改进的光谱吸收曲线。