| abstract |
PURPOSE:To expand a latitude of the title material for photographic fog by forming at least three layers contg. a specified sensitizing dye in each layer, and incorporating also a specified compd. into said layers. CONSTITUTION:The title material has, for example, at least three layers contg. a sensitizing dye as expressed by formula I in each layer, and contg. also at least one compd. selected from a group of compds. expressed by formula II. In formula I, each Z1 and Z2 is an atomic group necessary for forming a benzothiazole ring, naphthothiazole ring, etc.; each R1 and R2 is a substituted or unsubstituted alkyl group; X1<-> is an anion. In formula II, Y is O or S; Q<1> is an atomic group necessary for forming a pyrazolone ring, isoxazolone ring, etc.; each R<1> and R<2> is an alkyl group; M is H or cation; each L<1>-L<6> is a methine group. By this constitution, the photographic fog latitude of a direct positive silver halide color photographic sensitive material is expanded. |