| 摘要 |
PURPOSE:To improve the color-reproducibility and the stability with age of the title material by incorporating a specified compd. and a redox compd. in the photosensitive material. CONSTITUTION:The compd. shown by formula I and the compd. capable of being released a photographic useful reagent by being attacked with a nucleophilic reagent after oxidizing with the oxidant of a development main agent or its precursor (the redox compd.) are incorporated in the photographic constituting layer of the photosensitive material such as a silver halide emulsion layer. In the formula, A is a single bond or hydrogen atom, etc., B is -S- or -N(-R1)- group, etc., X is alkylene or alkenylene group, etc., Y is hydrogen atom or a polar substituting group, R1 is hydrogen atom or alkyl group, etc., (m) is 0 or 1, (n) is 1 or 2. And, the redox compd. is composed of a compd. shown by formula II, etc. In formula II, ED<1> is a redox mother nucleus (precursor), Time is a timing group, (n) is 0 or 1, PUG is a photographic useful group such as a development retarder, etc. |
