Method for chemically sensitizing silver halide photographic emulsion
    1.
    发明授权
    Method for chemically sensitizing silver halide photographic emulsion 失效
    化学增感卤化银照相乳剂的方法

    公开(公告)号:US5679507A

    公开(公告)日:1997-10-21

    申请号:US519695

    申请日:1995-08-25

    摘要: A method for chemically sensitizing a silver halide photographic emulsion with a selenium compound is disclosed. The sensitizing method comprises the steps of preparing a dispersion of solid particles of a selenium compound in an aqueous medium by a process comprising the following steps of (1) dissolving a substantially water-insoluble organic selenium compound in a substantially water immiscible low-boiling organic solvent to prepare a selenium compound solution, (2) dispersing the selenium compound solution in water or an aqueous solution of a dispersing aid to form a oil-in-water type dispersion, and (3) removing the organic solvent from the oil-in-water type dispersion by stirring the dispersion under a decompressed condition to precipitate the selenium compound so as to form a dispersion of fine solid particles of the selenium compound having an average particle size of 10 nm to 3 .mu.m;adding the solid dispersion particles of the selenium compound to a silver halide emulsion, and ripening the silver halide emulsion in the presence of the solid dispersion particles of the selenium compound.

    摘要翻译: 公开了一种用硒化合物对卤化银照相乳剂进行化学敏化的方法。 敏化方法包括以下步骤:通过以下步骤制备硒化合物的固体颗粒在水性介质中的分散步骤:(1)将基本上不溶于水的有机硒化合物溶解在基本上与水不混溶的低沸点有机物 溶剂以制备硒化合物溶液,(2)将硒化合物溶液分散在水或分散助剂的水溶液中以形成水包油型分散体,和(3)从油中除去有机溶剂 - 水型分散体,在减压条件下搅拌分散体,使硒化合物沉淀,形成平均粒径为10nm〜3μm的硒化合物的微细固体颗粒的分散液; 将硒化合物的固体分散体颗粒加入到卤化银乳剂中,并在硒化合物的固体分散体颗粒存在下熟化卤化银乳剂。

    Method of producing a silver halide photographic emulsion
    5.
    发明授权
    Method of producing a silver halide photographic emulsion 失效
    制备卤化银照相乳剂的方法

    公开(公告)号:US5605790A

    公开(公告)日:1997-02-25

    申请号:US569654

    申请日:1995-12-08

    IPC分类号: G03C1/015 G03C11/06

    CPC分类号: G03C1/015

    摘要: Disclosed is a method of producing a silver halide photographic emulsion comprising steps of:(a) forming fine-grain silver halide emulsion in a mixing vessel B separately provided from a reaction vessel A,(b) removing unnecessary ions contained in said fine-grain silver halide emulsion,(c) supplying the fine-grain silver halide emulsion to said reaction vessel A,(d) forming nucleation of a silver halide grain in said reaction vessel A, and(e) forming crystal growth of the silver halide grain in said reaction vessel A.

    摘要翻译: 公开了一种制备卤化银照相乳剂的方法,包括以下步骤:(a)在从反应容器A分开提供的混合容器B中形成细粒状卤化银乳剂,(b)除去所述细粒中所含的不需要的离子 卤化银乳剂,(c)将细粒状卤化银乳剂供给到所述反应容器A中,(d)在所述反应容器A中形成卤化银颗粒的成核,和(e)在所述反应容器A中形成卤化银颗粒的晶体生长 所述反应容器A.

    Method of preparing silver halide grains for photographic emulsion and
light sensitive material containing the same
    7.
    发明授权
    Method of preparing silver halide grains for photographic emulsion and light sensitive material containing the same 失效
    制备用于照相乳剂的卤化银颗粒和含有它的感光材料的方法

    公开(公告)号:US5254454A

    公开(公告)日:1993-10-19

    申请号:US013192

    申请日:1993-01-29

    IPC分类号: G03C1/015

    CPC分类号: G03C1/015

    摘要: A method of preparing silver halide grains for a photographic emulsion which has a constant mass production qualities and a controlled crystalization technique is disclosed. The first reaction of halides and silver is performed in a mixer with a blades of high speed then the fine crystals of silver halide are kept in an adjusting vessel where monitoring and control devices are provided and the fine crystals are supplied to a parent tank for ripening the crystals prepared in the parent tank.

    摘要翻译: 公开了一种制备具有恒定质量生产质量和受控结晶技术的照相乳剂卤化银颗粒的方法。 卤化物和银的第一反应在具有高速叶片的混合器中进行,然后将卤化银的细晶体保存在调节容器中,其中提供监测和控制装置,并将细晶体供应到母体熟化成熟 在母体罐中制备的晶体。