Lith-type silver halide photosensitive material containing a
p-benzoquinone derivative
    1.
    发明授权
    Lith-type silver halide photosensitive material containing a p-benzoquinone derivative 失效
    含有对苯醌衍生物的锂离子型卤化银感光材料

    公开(公告)号:US4010036A

    公开(公告)日:1977-03-01

    申请号:US579792

    申请日:1975-05-22

    IPC分类号: G03C1/06 G03C1/28 G03C5/30

    CPC分类号: G03C1/067 Y10S430/15

    摘要: An improved silver halide photosensitive material of the lith-type is disclosed which is suitable for an infectious development in order to obtain high contrast images with high sensitivity. A method for developing the material is also disclosed. The material comprises silver halide grains containing at least 50 mole per cent of silver chloride, less than 40 mole per cent of silver bromide and less than 5 mole percent of silver iodide based on total silver halide, the average size of the grains being 0.05 to 0.5 microns in diameter. The material further comprises a compound represented by the following general formula I or II ##STR1## wherein R is alkyl, aryl, aralkyl or acyl; R' is hydrogen or --OR; and R" is hydrogen or acyl.

    摘要翻译: 公开了一种改进的锂盐型卤化银感光材料,适用于感染发展,以获得高灵敏度的高对比度图像。 还公开了用于显影材料的方法。 该材料包含卤化银颗粒,该卤化银颗粒含有至少50%的氯化银,少于40%的溴化银和小于5%的碘化银,基于总卤化银,颗粒的平均尺寸为0.05至 直径0.5微米。 所述材料还包含由以下通式I或II表示的化合物:其中R是烷基,芳基,芳烷基或酰基; R'是氢或-OR; 并且R“是氢或酰基。

    Process for forming a direct positive image
    3.
    发明授权
    Process for forming a direct positive image 失效
    形成直接正像的过程

    公开(公告)号:US4150993A

    公开(公告)日:1979-04-24

    申请号:US853103

    申请日:1977-11-21

    CPC分类号: G03C5/50 G03C1/48546

    摘要: A process for forming a direct positive image by developing, after imagewise exposure to an internal latent image type light-sensitive silver halide photographic material, with a surface developer for silver halide, which process comprises incorporating at least one fogging agent selected from hydrazine compounds, N-substituted cycloammonium salts and benzimidazole derivatives in combination with an amineborane compound into said light-sensitive silver halide photographic material, said surface developer and/or a treating bath used prior to the treatment by said surface developer.

    摘要翻译: 在用内部潜像型感光卤化银照相材料成像曝光之后,用卤化银表面显影剂显影直接形成正象的方法,该方法包括加入至少一种选自肼化合物的起雾剂, N-取代的环铵盐和苯并咪唑衍生物与胺硼烷化合物结合到所述感光卤化银照相材料中,所述表面显影剂和/或在所述表面显影剂处理之前使用的处理浴。