发明名称 SILVER HALIDE PHOTOGRAPHIC MATERIAL
摘要 PURPOSE:To obtain a silver halide photographic sensitive material improved in sensitivity without increasing fog, by forming a silver halide emulsion layer containing a specified compound on a support. CONSTITUTION:A silver halide emulsion layer formed on a support contains a compound represented by the general formulaIin which R1-R6 are each H, alkyl, aryl, or acyl, and X is a >=2C chain, exemplified by the formulas II and III. In the formulaI, the alkyl group represented by R1-R6 is preferably a lower alkyl group, such as methyl, ethyl, or propyl, and the aryl group is preferably phenyl or naphthyl. To add the compound shown by the formulaIto the silver halide emulsion layer, for example, its sulfate or the like is dissolved in a solvent, and this solution is added in the stage of growth of the silver halide crystals, the completion of the growth, etc.
申请公布号 JPS57163232(A) 申请公布日期 1982.10.07
申请号 JP19810049877 申请日期 1981.04.01
申请人 KONISHIROKU SHASHIN KOGYO KK 发明人 NISHIDE RIICHI;IIJIMA TOSHIBUMI
分类号 C07C67/00;C07C239/00;C07C279/26;G03C1/10 主分类号 C07C67/00
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