Subbed polyester film support carrying carbon black antihalation layer
    122.
    发明授权
    Subbed polyester film support carrying carbon black antihalation layer 失效
    带有聚碳酸酯的支撑碳黑的防晕层

    公开(公告)号:US4990434A

    公开(公告)日:1991-02-05

    申请号:US412489

    申请日:1989-09-26

    CPC分类号: G03C1/825 G03C1/93

    摘要: The present invention provides a photographic element comprising a dimensionally stable hydrophobic transparent polyester film support, at least one light-sensitive silver halide emulsion layer, and at the side of said support opposite to that of said emulsion layer(s), a subbing layer essentially consisting of poly-N-vinyl pyrrolidone, and an antihalation layer comprising carbon black dispersed in a water-insoluble alkali-soluble copolymer of 1 to 65% by weight of a C.sub.1 -C.sub.4 alkyl methacrylate, 10 to 79% by weight of a C.sub.1 -C.sub.8 alkyl acrylate, and 10 to 50% by weight of acrylic acid or methacrylic acid. The present invention also provides a process of manufacturing a dimensionally stable hydrophobic transparent polyester film support carrying a subbing layer and an alkali-soluble carbon black antihalation layer, said process comprising monoaxially stretching an extruded amorphous polyester film, coating it with an aqueous solution of poly-N-vinyl pyrrolidone to form said subbing layer, drying it, stretching it together with said film in a direction perpendicular to that of the first stretching, heat-setting, coating the film support with an aqueous dispersion of carbon black in said above-mentioned water-insoluble alkali-soluble copolymer to form said alkali-soluble antihalation layer.

    Negative silver halide photographic light-sensitive material capable of
being handled in light room
    123.
    发明授权
    Negative silver halide photographic light-sensitive material capable of being handled in light room 失效
    负卤化银照相感光材料,能够在轻盈的房间中处理

    公开(公告)号:US4980276A

    公开(公告)日:1990-12-25

    申请号:US512596

    申请日:1990-04-24

    CPC分类号: G03C1/36 G03C1/825

    摘要: A silver halide light-sensitive photographic material having an improved safe-light insensitivity and, therefore, capability of being easily handled in the light room is disclosed. The material comprises a support; at least one silver halide emulsion layer being provided on one side of the support and containing silver halide grains containing at least 50 mol % of silver chloride, 10.sup.-4 to 10.sup.-8 mol per 1 mol of silver halide of a rhodium salt and a desensitizing dye; and at least one hydrophilic colloidal layer being provided on the other side of the support and containing at least one dye so that the absorbancy of the dye at the maximum spectral sensitivity wavelength (.lambda.max) of the densenitizing dye is not less than 0.3 and the absorbance ratio at the maximum spectral sensitivity wavelength against that at 450 nm is not less than 0.2.

    Silver halide photographic material
    124.
    发明授权
    Silver halide photographic material 失效
    卤化银照相材料

    公开(公告)号:US4952484A

    公开(公告)日:1990-08-28

    申请号:US313004

    申请日:1989-02-21

    摘要: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein said emulsion layer or other hydrophilic colloid layer contains a colored polymer matting agent. The colored matting agent comprises a dye adsorbed to a polymer. The dye is selected to adsorb light in the same wavelength region that to which the photographic material is exposed. Use of the present invention inhibits the occurrence of black spots.

    摘要翻译: 一种卤化银照相材料,其包括其上具有至少一个卤化银乳剂层的载体,其中所述乳剂层或其它亲水胶体层含有着色聚合物消光剂。 着色消光剂包括吸附在聚合物上的染料。 选择染料以吸收与照相材料暴露于相同波长区域的光。 本发明的用途抑制黑点的发生。

    Silver halide light-sensitive materials having a layer of grains having
dye absorbed thereon
    127.
    发明授权
    Silver halide light-sensitive materials having a layer of grains having dye absorbed thereon 失效
    卤化银感光材料,其具有吸收有染料的颗粒层

    公开(公告)号:US4574115A

    公开(公告)日:1986-03-04

    申请号:US643202

    申请日:1984-08-22

    摘要: A silver halide light-sensitive material is described, comprising(1) an emulsion layer containing light-sensitive silver halide grains, and(2) a layer containing metal salt grains on which a dye is adsorbed, which cannot be substantially developed and are sparingly soluble in water,wherein the absorption maximum of said dye is separated by 20 nm or more from the sensitization maximum of an emulsion layer located in a position farther from the light source than the layer containing said dye.

    摘要翻译: 描述了一种卤化银感光材料,其包括(1)含有感光卤化银颗粒的乳剂层,和(2)含有染料吸附的金属盐颗粒层,其不能显着地显影和微量 可溶于水,其中所述染料的吸收最大值与位于比含有所述染料的层更远离光源的位置的乳剂层的致敏最大值相隔20nm或更大。

    Process for preparing aqueous dispersion of pigment
    128.
    发明授权
    Process for preparing aqueous dispersion of pigment 失效
    制备颜料水分散体的方法

    公开(公告)号:US4500362A

    公开(公告)日:1985-02-19

    申请号:US552188

    申请日:1983-11-15

    摘要: A process for preparing an aqueous dispersion of a pigment is disclosed. The process involves providing a surface active agent having a solubility of 0.1% or less in water at a temperature of about 25.degree. C. The agent is also soluble in an organic solvent. The agent is dispersed in water to provide an aqueous dispersion of the agent. The pigment is then dispersed in the aqueous dispersion of the agent to form the aqueous dispersion of the pigment. The dispersion causes less foaming, aggregation and sedimentation of the pigment particles when the dispersion is stored. The dispersion is particularly useful when utilizing carbon black as the pigment and applying the dispersion to the field of photographic materials. The presence of the surface active agent does not have secondary effects on photographic materials.

    摘要翻译: 公开了一种制备颜料的水性分散体的方法。 该方法包括提供在约25℃的温度下在水中溶解度为0.1%或更低的表面活性剂。该试剂也可溶于有机溶剂。 将试剂分散在水中以提供试剂的水分散体。 然后将颜料分散在试剂的水分散体中以形成颜料的水性分散体。 当分散体储存时,分散体引起颜料颗粒的起泡,聚集和沉淀较少。 当使用炭黑作为颜料并将分散体施加到照相材料领域时,分散体特别有用。 表面活性剂的存在对照相材料没有二次影响。

    In-process color balance adjustment of photographic film using filter
dyes
    130.
    发明授权
    In-process color balance adjustment of photographic film using filter dyes 失效
    使用过滤染料的摄影胶片的过程中色彩平衡调整

    公开(公告)号:US3990898A

    公开(公告)日:1976-11-09

    申请号:US483090

    申请日:1974-06-26

    申请人: Edwin H. Land

    发明人: Edwin H. Land

    CPC分类号: G03C8/16 G03C1/825

    摘要: The color speeds of a multicolor photosensitive element are balanced during the manufacture thereof by continuously introducing into said element optical filter means adapted to modulate the photographic color speed of at least one of the selectively sensitized silver halide emulsions relative to the other(s), and then adjusting the density of said optical filter means during coating to an amount sufficient to obtain the desired color balance.

    摘要翻译: 多色感光元件的颜色速度在其制造期间通过连续地引入所述元件滤光器装置来平衡,所述光学滤光器装置适于调节选择性增感的卤化银乳剂中的至少一种相对于另一种的照相色速,以及 然后在涂布期间将所述光学滤光器装置的密度调节到足以获得所需颜色平衡的量。