| 摘要 |
PURPOSE:To make scanning unevenness indistinct and to obtain sufficiently high max. density of picture image by sensitizing spectrally photosensitive silver halide particles with a specified dye and incorporating an F-contg. ionic surface active agent, a nonionic surface active agent and an inorganic salt into an emulsion layer and/or an adjacent layer. CONSTITUTION:A photosensitive silver halide particles are sensitized spectrally with a dye expressed by formula I, and an F-contg. ionic surface active agent, a nonionic surface active agent, and an inorganic salt are incorporated into a silver halide emulsion layer and/or an adjacent layer thereto. In the formula, each Z1 and Z2 is an atomic group necessary for forming a 5- or 6-membered N-contg. heterocyclic ring, respectively; each R1 and R2 is a satd. or unsatd. aliphatic group; each Q1 and Q2 is an atomic group necessary for forming a 4-thiazolidinone ring, 4-oxazolidinone ring, etc.; each L1-L3 is a methine group, substituted methine group; X is a mineral acid anion or an org. acid anion; each m and n is an integer 0-3. Thus, the scanning unevenness is made indistinct and a picture image having sufficiently high max. density is obtd.
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