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    Silver halide photographic emulsion and light-sensitive material containing the same, and image-forming method using the light-sensitive material
    2.
    发明授权
    Silver halide photographic emulsion and light-sensitive material containing the same, and image-forming method using the light-sensitive material 失效

    公开(公告)号：US06610467B2

    公开(公告)日：2003-08-26

    申请号：US09953289

    申请日：2001-09-17

    申请人： Masahiro Asami ,  Makoto Kikuchi ,  Tadanobu Sato

    发明人： Masahiro Asami ,  Makoto Kikuchi ,  Tadanobu Sato

    IPC分类号： G03C1025

    CPC分类号： G03C1/08 ,  G03C1/0051 ,  G03C1/42 ,  G03C8/4013 ,  G03C8/404 ,  G03C2001/0056 ,  G03C2200/43

    摘要： There is disclosed a silver halide photographic emulsion comprising silver halide grains, wherein 50% or more of the projected area of the silver halide grains to be contained is occupied by tabular grains having an aspect ratio of 2 or more and a grain thickness of 0.2 &mgr;m or less, with the tabular grains each having a phase with the content of silver bromide being 10% or more, and wherein in the phase, the tabular grains each contain a metal complex dopant in an amount necessary to increase the density of a dislocation. This emulsion produces high contrast and better granularity while it has high sensitivity. Further, there is also disclosed a silver halide photographic emulsion, wherein the average equivalent-circle diameter of the total tabular grains among the silver halide grains contained is 2.0 to 4.0 &mgr;m, and the tabular grains contain at least one metal complex having, as a ligand, a heterocyclic compound in a number more than half of the coordination number of the metal atom. This emulsion has high sensitivity and excellent photographic characteristics exhibiting little change of gradation upon exposure to high-intensity illumination. In addition, the present invention provides a silver halide color photographic light-sensitive material using the emulsion, and a color image forming process that is simple and rapid and places little load on the environment, using the material.

    Color photographic element having improved contrast and compatibility with both dry and conventional processing
    3.
    发明授权
    Color photographic element having improved contrast and compatibility with both dry and conventional processing 失效
    具有改善的对比度和与干式和常规处理的兼容性的彩色照相元件

    公开(公告)号：US06440648B1

    公开(公告)日：2002-08-27

    申请号：US09746050

    申请日：2000-12-21

    申请人： David T. Southby ,  Xiqiang Yang ,  Benjamin P. Hoag

    发明人： David T. Southby ,  Xiqiang Yang ,  Benjamin P. Hoag

    IPC分类号： G03C832

    CPC分类号： G03C7/30511 ,  G03C7/30558 ,  G03C7/39256 ,  G03C7/407 ,  G03C8/4013

    摘要： A method of processing an imagewise exposed color photographic film, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light sensitive silver halide emulsion and image dye coupler, which method comprises contacting the imagewise exposed color photographic film with an aqueous solution containing a non-blocked developing agent, at a temperature of between 30 to 60° C.; and wherein said film further comprises an incorporated reducing agent, at least one organic silver salt and an amido compound wherein the reducing agent is substantially unreactive in the aqueous color development step described above, but wherein color development of the same imagewise exposed film is capable of being alternatively obtained, without any externally applied developing agent, by heating said film to a temperature above about 80° C. essentially in the absence of aqueous solutions, such that the incorporated reducing agent reacts to form dye by reacting with the image dye couplers; with the proviso that the amido compound effectively reduces contrast when the film is heated above 80° C. but does not substantially reduce contrast when the film is processed by contacting the imagewise exposed color photographic film with a non-blocked developing agent under aqueous conditions, at a temperature of between 30 to 60° C.

    摘要翻译： 一种处理成像曝光的彩色照相胶片的方法，所述胶片具有至少三个在不同波长区域具有各自敏感度的光敏单元，每个单元包含至少一种感光卤化银乳剂和图像染料偶合剂，其中 方法包括使成像曝光的彩色照相胶片与含有非阻挡显影剂的水溶液在30至60℃的温度下接触; 并且其中所述膜还包含引入的还原剂，至少一种有机银盐和酰氨基化合物，其中所述还原剂在上述水性显色步骤中基本上不反应，但是其中相同的成像曝光膜的显色性能够 可替代地获得，没有任何外部施加的显影剂，通过将所述膜加热到大约80℃的温度，基本上在不存在水溶液的情况下，使得引入的还原剂通过与图像染料成色剂反应而反应形成染料; 条件是当膜被加热到80℃以上时，酰胺化合物有效地降低了对比度，但是当通过在水性条件下使成像曝光的彩色照相胶片与非阻挡显影剂接触来处理膜时，实质上不会降低对比度， 温度在30至60℃之间。

    Hydrogen bond accepting groups on thermal solvents for image separation systems
    7.
    发明授权
    Hydrogen bond accepting groups on thermal solvents for image separation systems 失效
    用于图像分离系统的热溶剂上的氢键接受基团

    公开(公告)号：US5468587A

    公开(公告)日：1995-11-21

    申请号：US73826

    申请日：1993-06-08

    申请人： David S. Bailey ,  Albert J. Mura, Jr. ,  Shari L. Eiff

    发明人： David S. Bailey ,  Albert J. Mura, Jr. ,  Shari L. Eiff

    IPC分类号： G03C8/40 ,  G03C8/12

    CPC分类号： G03C8/402 ,  G03C8/4013

    摘要： An aqueous-developable chromogenic photographic heat-transferable non-aqueous dye-diffusion-transfer photographic element is disclosed, wherein said element comprises radiation sensitive silver halide, a dye-providing compound that forms or releases a heat-transferable image dye upon reaction of said compound with the oxidation product of a primary amine developing agent, a hydrophilic binder, and a thermal solvent for facilitating non-aqueous diffusion transfer according to formula (I) ##STR1## wherein AH is a hydrogen bond donating group with an aqueous pK.sub.a value for proton loss of greater than 6;L.sup.1 and L.sup.2 are each independently divalent linking groups consisting of groups of 1 to 12 atoms or are independently absent;m is 1, 2, or 3;Q comprises a group of 2 to 15 carbon atoms selected from the group consisting of aromatic rings, alkyl chains, alkyl rings, or ring-chain combinations, optionally substituted with substituents, Z, consisting of alkyl groups or halogens;B is a hydrogen bond accepting group with an aqueous pK.sub.a value for proton gain of less than 6;n is 1 or 2;the groups AH and B cannot hydrogen bond to form a ring of either 5 or 6 atoms;R is an alkyl, aryl and alkylaryl group of from 1 to 18 carbon atoms;the calculated log of the octanol/water partition coefficient (clogP) is greater than 3 and less than 10.

    摘要翻译： 公开了含水可显影的显色照相可热转印非水性染料扩散转印照相材料，其中所述元件包括辐射敏感卤化银，一种提供染料的化合物，其在所述颜料反应反应时形成或释放可热转移的图像染料 与伯胺展开剂，亲水性粘合剂和热溶剂的氧化产物的化合物，用于促进根据式（I）的非水扩散转移。其中AH是具有水性的氢键供体基团 质子损失的pKa值大于6; L1和L2各自独立地为由1至12个原子的基团组成的二价连接基团或独立地不存在; m为1,2或3; Q包括选自芳基环，烷基链，烷基环或环 - 链组合的2至15个碳原子的基团，任选被取代基Z取代，Z由烷基或卤素组成; B是具有小于6的质子增益的pKa值的氢键接受基团; n为1或2; 基团AH和B不能氢键形成5或6个原子的环; R是1至18个碳原子的烷基，芳基和烷基芳基; 辛醇/水分配系数（clogP）的计算对数大于3且小于10。

    Methine-dye releasing couplers for heat image separation systems
    8.
    发明授权
    Methine-dye releasing couplers for heat image separation systems 失效
    用于热图像分离系统的甲基染料释放成色剂

    公开(公告)号：US5455140A

    公开(公告)日：1995-10-03

    申请号：US250145

    申请日：1994-05-27

    申请人： John Texter ,  Thomas R. Welter ,  David T. Southby ,  Jared B. Mooberry

    发明人： John Texter ,  Thomas R. Welter ,  David T. Southby ,  Jared B. Mooberry

    IPC分类号： G03C8/10 ,  G03C8/40 ,  G03C8/12

    CPC分类号： G03C8/10 ,  G03C8/4013

    摘要： An aqueous-developable photographic color diffusion transfer element is disclosed where this element comprises one and only one dimensionally stable support and one or more layers comprising radiation sensitive silver halide, thermal solvent for facilitating the thermal diffusion of dyes through a hydrophilic binder, a methine-dye releasing coupler, and hydrophilic binder, wherein said dye is heat diffusible in said binder and thermal solvent, and wherein said methine-dye releasing coupler is of the structure (I)Cp--L--M (I)whereCp is a coupler radical substituted in the coupling position with a divalent linking group, L;M is a methine-dye radical exhibiting selective absorption in the visible spectrum; and where the --L--M group couples off upon reaction of said coupler radical with the oxidation product of a primary amine developing agent, and where said methine-dye radical M is released from said --L--M group subsequent to the coupling off of said --L--M group.Also disclosed in this invention is a diffusion transfer process for forming a color photographic image comprising the steps of:exposing said element to actinic radiation; processing said element by immersing said element in an external aqueous bath containing color developer of the primary amine type;washing said element;drying said element to remove the imbibed water; andheating said element to effect dye diffusion transfer to an image receiving layer.

    摘要翻译： 公开了一种含水显影照相色彩扩散转移元件，其中该元件包括一个且仅一维稳定的载体，以及包含辐射敏感卤化银的一层或多层，用于促进染料通过亲水性粘合剂的热扩散的热溶剂， 染料释放成色剂和亲水性粘合剂，其中所述染料在所述粘合剂和热溶剂中是热扩散的，并且其中所述次甲基染料释放成色剂具有结构式（I）Cp-LM（I），其中Cp是取代基 与二价连接基团的偶联位置L; M是在可见光谱中表现出选择性吸收的次甲基染料基团; 并且其中-LM基团在所述成色剂基团与伯胺显影剂的氧化产物反应时脱离，并且其中所述次甲基染料基团M在所述-LM基团的偶联之后从所述-LM基团释放出来 。 本发明还公开了用于形成彩色照相图像的扩散转移方法，包括以下步骤：将所述元件暴露于光化辐射; 通过将所述元件浸入含有伯胺型彩色显影剂的外部水浴中来处理所述元件; 洗涤元素; 干燥所述元件以除去吸收的水; 并加热所述元件以进行染料扩散转移到图像接收层。

    Heat developable color photographic materials
    10.
    发明授权
    Heat developable color photographic materials 失效
    可热成像的彩色照相材料

    公开(公告)号：US4777110A

    公开(公告)日：1988-10-11

    申请号：US032924

    申请日：1987-03-30

    申请人： Satoru Sawada ,  Shingo Nishiyama

    发明人： Satoru Sawada ,  Shingo Nishiyama

    IPC分类号： G03C1/498 ,  G03C7/00 ,  G03C8/40 ,  G03C5/54 ,  G03C1/10

    CPC分类号： G03C7/00 ,  G03C1/49818 ,  G03C8/4013 ,  G03C8/404

    摘要： A heat developable color photographic material is disclosed. The color photographic material is comprised of a support having thereon a light-sensitive mixed crystal silver haloiodide having a silver iodide content of 4 to 40 mole %, a binder and a dye-providing substance capable of providing a mobile dye, when the silver haloiodide is reduced to silver by heating, in chemical relation to the reaction. The color photographic material is capable of producing an image by quick development in a substantially water free state. Even when the color photographic material is used in combination with an organic silver salt it is capable of providing excellent color sensitivity.