Process for improving adhesion between photographic layers
    1.
    发明授权
    Process for improving adhesion between photographic layers 失效
    用于改善照相层之间粘附的方法

    公开(公告)号:US4717642A

    公开(公告)日:1988-01-05

    申请号:US855563

    申请日:1986-04-25

    摘要: A process for improving adhesion between photographic layers of a photographic element comprising a support having provided thereon at least(1) a first photographic layer comprising a high molecular weight compound having a functional group capable of reacting with an isocyanate group and(2) a second photographic layer comprising a high molecular weight compound having a functional group capable of reacting with an isocyanate group which compound is different from the high molecular weight compound of said first layer,which process comprises coating from 2 to 20 ml/m.sup.2 of a solution containing a polyisocyanate compound having at least two isocyanate groups on the first photographic layer, drying said solution, and then coating the second photographic layer.

    摘要翻译: 一种用于改善照相材料的照相层之间的附着力的方法,其包括至少提供有(1)包含具有能够与异氰酸酯基团反应的官能团的高分子量化合物的第一照相层和(2)第二 照相层包含具有能够与化合物与所述第一层的高分子量化合物不同的异氰酸酯基反应的官能团的高分子量化合物,该方法包括将2至20ml / m 2的含有 在第一照相层上具有至少两个异氰酸酯基团的多异氰酸酯化合物,干燥所述溶液,然后涂布第二照相层。

    Photographic products and processes
    2.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号:US4591628A

    公开(公告)日:1986-05-27

    申请号:US633699

    申请日:1984-07-23

    申请人: James W. Foley

    发明人: James W. Foley

    摘要: This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety comprising a 1,3-sulfur-nitrogen group, said 1,3-sulfur-nitrogen group (a) being capable of undergoing cleavage in the presence of silver ion and/or soluble silver complex, and (b) possessing an amide substituent on the carbon atom in the 2-position that undergoes an intramolecularly accelerated cleavage reaction following the cleavage of said 1,3-sulfur-nitrogen group, which moiety maintains said precursor in its colorless form at least until the 1,3-sulfur-nitrogen group undergoes said cleavage. In a further embodiment, the cleavage of the amide substituent following the cleavage of the 1,3-sulfur-nitrogen group is used to provide an imagewise distribution of a photographically useful reagent, which reagent may be, for example, a photographically active reagent.

    摘要翻译: 本发明涉及从由预先形成的图像染料的无色前体形成染料的照相方法和产品,其被包含1,3-硫 - 氮基团的部分所取代,所述1,3-硫 - 氮基团( a)能够在银离子和/或可溶性银络合物的存在下进行裂解,和(b)在所述1位裂解后在2位上的碳原子上具有经历分子内加速裂解反应的酰胺取代基 ,3-硫 - 氮基团,其部分将所述前体保持为无色形式,至少直到1,3-硫 - 氮基团经历所述裂解。 在另一个实施方案中,使用1,3-硫 - 氮基团切割后的酰胺取代基的切割用于提供照相用试剂的成像分布,该试剂可以是例如摄影活性试剂。

    Photographic products and processes
    3.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号:US4468450A

    公开(公告)日:1984-08-28

    申请号:US500414

    申请日:1983-06-02

    摘要: This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety containing a thiazolidinyl group, said thiazolidinyl group (a) being capable of undergoing cleavage imagewise in the presence of an imagewise distribution of silver ion and/or soluble silver complex and (b) possessing a substituent on the carbon atom in the 2-position which upon cleavage of said thiazolidinyl group, undergoes a .beta.-elimination reaction followed by an intramolecularly accelerated nucleophilic displacement reaction, which moiety maintains the precursor in its colorless form at least until said thiazolidinyl group undergoes said cleavage. In a further embodiment, this sequence of reactions is used to release an imagewise distribution of a photographically useful reagent which reagent may be, for example, a photographically active reagent.

    摘要翻译: 本发明涉及用于从含有噻唑烷基的部分取代的预成型染料的无色前体形成染料的照相方法和产品,所述噻唑烷基(a)能够在存在 银离子和/或可溶性银络合物的成像分布和(b)在2-位上的碳原子上具有取代基,其在所述噻唑烷基裂解后进行β-消光反应,随后进行分子内加速的亲核取代反应 ,该部分将前体保持为无色形式,至少直到所述噻唑烷基基团经历所述切割。 在另一个实施方案中,该反应序列用于释放照相用试剂的成像分布,该试剂可以是例如摄影活性试剂。

    Method for forming a negative image
    4.
    发明授权
    Method for forming a negative image 失效
    形成负像的方法

    公开(公告)号:US4299908A

    公开(公告)日:1981-11-10

    申请号:US138934

    申请日:1980-04-10

    CPC分类号: G03C8/04 G03C1/46 G03C8/06

    摘要: A method for forming a negative image comprising imagewise exposing a photographic material to provide exposed areas and unexposed areas, said material comprising, on a support, (1) an emulsion layer containing a light-sensitive silver halide, (2) unsensitized silver halide metallic salt grains which are more soluble in a developer than the light sensitive silver halide, and (3) nuclei for physical development, processing said material in the presence of a reducing agent and a solvent for said grains with said developer containing a substance which renders said grains less soluble by adsorbing thereto, said developer rendering said grains in said exposed areas and not in said unexposed areas soluble in said solvent, whereby metal ions are released and deposited on said nuclei.

    摘要翻译: 一种用于形成负像的方法,包括成像曝光照相材料以提供曝光区域和未曝光区域,所述材料在支撑体上包含(1)含有感光卤化银的乳剂层,(2)未敏化卤化银金属 与光敏卤化银相比在显色剂中更易溶的盐晶粒,和(3)用于物理显影的核,在还原剂和所述晶粒溶剂存在下处理所述材料,所述显影剂含有使所述 所述显影剂使所述暴露区域中的所述颗粒不会溶解在所述溶剂中的所述未曝光区域,由此金属离子被释放并沉积在所述核上。

    Photographic processes compositions and products
    8.
    发明授权
    Photographic processes compositions and products 失效
    摄影过程组合物和产品

    公开(公告)号:US3615438A

    公开(公告)日:1971-10-26

    申请号:US3615438D

    申请日:1968-06-13

    IPC分类号: G03C1/492 G03C8/04 G03C5/54

    CPC分类号: G03C1/492 G03C8/04

    摘要: Development solubilization photographic processes are disclosed wherein silver halide is preferentially dissolved from developing silver halide grains. Processing compositions employed in such processes include at least one silver halide complexing agent capable of forming a soluble silver complex, and preferably contains a second silver halide complexing agent capable of forming a less soluble silver complex. The dissolved silver halide may be transferred to another stratum to provide a visible image, preferably a silver transfer image which is a negative image of the photographed subject matter.