| 摘要 |
PURPOSE:To obtain the titled material having the high sensitivity and the excellent graininess and the less residual dye after developing by incorporating a combination of each specified sensitizing dyes in the titled material. CONSTITUTION:The titled material contains at least one layer of the silver halide emulsion layers contg. the combination of at least one of each compds. shown by formulas I and II mounted on a supporting body. In formulas I and II, R1 and R2 are each alkyl or alkenyl group, etc., R3 is hydrogen atom. or 1-3C alkyl group, etc., X1<-> is an anion, Z1 and Z2 are each a nonmetallic atom. group necessary for forming a substd. or an unsubstd. benzene ring, (n) is 1 or 2, R4 and R6 are each a lower alkyl group, R5 and R7 are each hydroxyalkyl or sulfoalkyl group, etc., R8 is hydrogen atom. or 1-3C alkyl group, X2<-> is an anion. Thus, the titled material which has the high sensitivity and is prevented the roughness of the image quality and has less residual dye, is obtd. |
