Color photographic multilayered material with improved color density
    3.
    发明授权
    Color photographic multilayered material with improved color density 失效
    彩色摄影多层材料具有改进的颜色密度

    公开(公告)号:US4052215A

    公开(公告)日:1977-10-04

    申请号:US739581

    申请日:1976-11-08

    CPC分类号: G03C7/39204 G03C7/18

    摘要: A color photographic material comprising at least one light-sensitive silver halide emulsion layer having preferably a non-diffusing color coupler associated to it and at least one non-lightsensitive binder layer containing a colloidal silver dispersion provides less contact fog and a better color reproduction if the non-lightsensitive binder layer containing the colloidal silver dispersion contains also a soluble iodide, particularly sodium, potassium or ammonium iodide. Alternatively the soluble iodide may also be contained in a non-lightsensitive binder layer adjacent that binder layer which contains the silver dispersion.

    Process for concentrating yellow silver sols
    5.
    发明授权
    Process for concentrating yellow silver sols 失效
    浓缩黄色银溶胶的方法

    公开(公告)号:US4429038A

    公开(公告)日:1984-01-31

    申请号:US401653

    申请日:1982-07-26

    IPC分类号: G03C1/825 G03C1/84 G03C1/05

    CPC分类号: G03C1/8255

    摘要: A yellow silver sol containing a binder is concentrated by flocculation in the presence of a calcium-free gelatin, a water-soluble chloride being added to the flocculation and/or after the redispersion.

    摘要翻译: 含有粘合剂的黄色银溶胶在无钙明胶存在下通过絮凝浓缩,将水溶性氯化物加入到絮凝物中和/或在再分散后加入。

    Color photographic silver halide material
    7.
    发明授权
    Color photographic silver halide material 失效
    彩色照相卤化银材料

    公开(公告)号:US4906558A

    公开(公告)日:1990-03-06

    申请号:US257718

    申请日:1988-10-14

    IPC分类号: G03C7/26 G03C1/09 G03C1/10

    CPC分类号: G03C1/09

    摘要: Color photographic silver halide material in which at least one layer contains a silver halide emulsion with 95 to 100 mol % of chloride which has been optimally ripened with a combination of at least one sulphur ripening body and at least one compound of the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 denote, independently of one another, hydrogen or alkyl, and X.sup..crclbar. denotes an anion, combines excellent sensitivity with low fog and steep gradation, particularly in the threshold and shoulder region.

    摘要翻译: 彩色照相卤化银材料,其中至少一层含有具有95-100mol%氯化物的卤化银乳剂,其已经用至少一种硫成熟体和至少一种下式的化合物 其中R 1,R 2和R 3彼此独立地表示氢或烷基,X( - )表示阴离子,特别是在阈值和肩部区域中,具有优异的敏感性和低雾度和陡峭的等级。

    Production of a silver halide emulsion
    9.
    发明授权
    Production of a silver halide emulsion 失效
    生产卤化银乳剂

    公开(公告)号:US4992362A

    公开(公告)日:1991-02-12

    申请号:US389544

    申请日:1989-08-04

    IPC分类号: C01G5/02 G03C1/047 G03C1/09

    CPC分类号: G03C1/09 G03C1/047

    摘要: The production of a photosensitive silver halide emulsion by precipitation of the silver halide in the presence of gelatine, flocculation and washing of the silver halide precipitated in the presence of the gelatine and redispersion with addition of more gelatine, precipitation being carried out in the presence of a gelatine having a gold number of at most 10 .mu.mol/g gelatine and a cysteine content of at most 6 ppm and redispersion being carried out with a gelatine having a gold number of at least 23 .mu.mol/g gelatine, leads to an emulsion of uniform grain distribution in which undesirably high fogging is avoided.

    摘要翻译: 通过在明胶存在下沉淀卤化银,在明胶存在下沉淀卤化银并再加入明胶再分散,生成感光卤化银乳剂,沉淀在存在下进行 具有至多10微摩尔/克明胶的金数和至多6ppm的半胱氨酸含量的明胶,并且用金数为至少23μmol/ g明胶的明胶进行再分散,得到乳液 均匀的颗粒分布,其中避免了不希望的高雾化。