发明名称 Process for producing silver halide photographic material
摘要 A process for producing a silver halide photographic material that has at least one silver halide emulsion layer on a support, in which process at least 10 mg of a calcium salt per mole of silver halide is added during the period from the completion of physical ripening a silver halide emulsion to the completion of its chemical ripening together with at least one compound represented by the following general formula (I) and at least one compound represented by the following general formula (II): <IMAGE> (I) where R1 is a hydrogen atom or an alkyl group; R2 and R3 which may be the same or different are each a substituted or unsubstituted alkyl group; A1-A6 are each a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom or a phenyl group, provided that adjacent atoms or groups may combine to form a ring; X is an anion; and n is 0 or 1, provided that n =0 when an intramolecular salt is formed; <IMAGE> (II) wherein Z1 is the group of non-metallic atoms necessary to form a 5- or 6-membered hetero ring; Q is the group of non-metallic atoms necessary to form a 5-membered nitrogenous hetero ring; R4 is an alkyl group of a substituted alkyl group; and m is 1 or 2.
申请公布号 US5130212(A) 申请公布日期 1992.07.14
申请号 US19900555294 申请日期 1990.07.19
申请人 KONICA CORPORATION 发明人 MORIMOTO, ISAMU;HATTORI, KAORU;UEDA, KOICHI;USHIROYAMA, HIROYUKI
分类号 G03C1/14;G03C1/08;G03C1/29;G03C1/34 主分类号 G03C1/14
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