| 摘要 |
PURPOSE:To reduce the generation of a fog, without the deterioration of the sensitivity of the titled material by incorporating an oil drop dispersing first coupler and a fisher dispersing second coupler to the layer of the silver halide emulsion layer. CONSTITUTION:The first coupler having the oil drip dispersing property and the second coupler having the fisher dispersing property are incorporated in at least one of the photographic silver halide emulsion layers which are provided on a substrate and are selectively effected with a spectral sensitization. At least one of the compds. selected from the compds. shown by formulas I-III is incorporated to the photosensitive emulsion layers and the adjacent thereto contg. the first and second couplers respectively. In the formula, R1-R3, R5-R7 and R10 and R11 are each a hydrogen atom or an alkyl group, R4 is an hydrogen atom, an aliphatic, an aromatic or a heterocyclic group, R8 and R9 are each a hydrogen atom, an aliphatic or a heterocyclic ring, R8 and R9 together with each other may be formed a ring, R12 is a hydrogen atom, an alkyl group or a halogen atom. Thus, the effect of preventing the fog is improved. |
