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    Silver halide photographic material
    1.
    发明授权
    Silver halide photographic material 失效

    公开(公告)号：US5155007A

    公开(公告)日：1992-10-13

    申请号：US675636

    申请日：1991-03-22

    申请人： Yoji Hara ,  Akira Kobayashi ,  Takeshi Sampei ,  Miho Sai ,  Akira Ogasawara

    发明人： Yoji Hara ,  Akira Kobayashi ,  Takeshi Sampei ,  Miho Sai ,  Akira Ogasawara

    IPC分类号： G03C1/06 ,  G03C1/33

    CPC分类号： G03C1/33 ,  G03C1/061

    摘要： An improved silver halide photographic material that has at least one silver halide emulsion layer on a support and that contains a hydrazine derivative in said emulsion layer or an adjacent layer. The improvement is that said emulsion layer or at least one of the other hydrophilic colloidal layers contains at least one of the compounds represented by the following general formulas (I) and (II): ##STR1## wherein R.sub.1 and R.sub.1 ' are each a group selected from among a substituted or unsubstituted alkane residue, an alkene residue, a benzene residue, a cyclohexane residue and a nitrogenous heterocyclic residue; R.sub.2 is a substituted or unsubstituted alkyl group; R.sub.3, R.sub.3 ', R.sub.4 and R.sub.4 ' are each a hydrogen atom or a substituted or unsubstituted methyl group, provided that R.sub.3 and R.sub.4 or R.sub.3 ' are not a methyl group at the same time; Y is a divalent organic residue; M and M' are each a hydrogen atom, an alkali metal, an ammonium salt or an organic amine salt; P is a positive integer; and m is 0 to 1.

    Silver halide photographic light-sensitive material
    2.
    发明授权
    Silver halide photographic light-sensitive material 失效
    卤化银照相感光材料

    公开(公告)号：US5130226A

    公开(公告)日：1992-07-14

    申请号：US758206

    申请日：1991-09-12

    申请人： Takeshi Sampei ,  Akira Ogasawara ,  Miho Sai ,  Yoji Hara

    发明人： Takeshi Sampei ,  Akira Ogasawara ,  Miho Sai ,  Yoji Hara

    IPC分类号： G03C1/06

    CPC分类号： G03C1/061 ,  G03C2200/45

    摘要： A silver halide photographic light-sensitive material suitable for photomechanical process is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and the emulsion layer or a layer adjacent to the emulsion layer contains a compound represented by formula 1, 2 or 3 and a compound represented by formula 4 or 5. ##STR1## The light-sensitive material give extreme high contrast images by processing usung a stable developer and is inhibited from producing pepper fog.

    摘要翻译： 公开了适用于光机械工艺的卤化银照相感光材料。 感光材料包括载体和卤化银乳剂层，乳剂层或与乳剂层相邻的层含有由式1,2或3表示的化合物和由式4或5表示的化合物。 （1）（2）（3）（4）（5）感光材料通过处理使用稳定的显影剂而赋予极高的​​对比度图像，并且抑制了产生胡椒雾 。