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21 条记录 (耗时 0.024 秒)

    Thermally developable materials with improved speed and contrast and methods of use
    4.
    发明授权
    Thermally developable materials with improved speed and contrast and methods of use 失效
    具有改进速度和对比度以及使用方法的耐热可开发材料

    公开(公告)号：US06645706B1

    公开(公告)日：2003-11-11

    申请号：US10245265

    申请日：2002-09-17

    申请人： Sharon M. Simpson ,  Takuzo Ishida

    发明人： Sharon M. Simpson ,  Takuzo Ishida

    IPC分类号： G03C1498

    CPC分类号： G03C1/49845 ,  G03C1/49827 ,  Y10S430/16 ,  Y10S430/165

    摘要： Thermally developable materials include a reducing agent composition that can reduce silver ions and provide high contrast images. The reducing agent composition includes a) a hindered phenol reducing agent, an aromatic di- or tri-hydroxy compound, or mixtures thereof, and b) a thermally-releasable p-phenylenediamine co-developer that is represented by the following Structure I: R—NH-BLOCK  (I) wherein R—NH— is a p-phenylenediamine group and BLOCK is a blocking group that is cleaved upon exposure to at least 120° C. for at least 5 seconds and comprises one or more of the following thermally cleavable groups: —CONH—, —COO—, —CONHSO2—, —PO3—, —SO2—, —COCH2NHCO—, or —COS—, and BLOCK is directly linked to R—NH— through one of the thermally cleavable groups.

    摘要翻译： 可热显影材料包括可以减少银离子并提供高对比度图像的还原剂组合物。 还原剂组合物包括a）受阻酚还原剂，芳族二 - 或三羟基化合物或其混合物，和b）由以下结构I表示的可热释放的对苯二胺共显影剂：其中 R-NH-是对苯二胺基团，BLOCK是在暴露于至少120℃至少5秒钟后被切割并包含一个或多个以下可热切割基团的封闭基团：-CONH-， - COO-，-CONHSO 2 - ， - PO 3 - ， - SO 2 - ，-COCH 2 NHCO-或-COS-，并且BLOCK通过其中一个可热切割基团直接与R-NH-连接。

    Ballasted leuco dyes and photothermographic element containing same
    7.
    发明授权
    Ballasted leuco dyes and photothermographic element containing same 失效
    压实无色染料和含有其的光热敏成像元件

    公开(公告)号：US5424183A

    公开(公告)日：1995-06-13

    申请号：US200925

    申请日：1994-02-22

    申请人： Takuzo Ishida ,  Roger A. Mader ,  Doreen C. Lynch ,  Tran V. Thien ,  Kenneth L. Hanzalik

    发明人： Takuzo Ishida ,  Roger A. Mader ,  Doreen C. Lynch ,  Tran V. Thien ,  Kenneth L. Hanzalik

    IPC分类号： G03C8/40 ,  G03C1/494 ,  G03C1/498 ,  G03C8/14

    CPC分类号： G03C8/4033

    摘要： Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising:(a) a photosensitive silver halide,(b) an organic silver compound,(c) a reducing agent for silver ion, and(d) a binder,The reducing agent comprises a ballasted leuco dye compound. The ballasted leuco dye compound comprises a compound of the general formula:D--BwhereinD represents the reduced chromophore of a thermally mobile dye; andB represents an organic group that reduces the thermal mobility of D in the aforementioned binder, said organic group B capable of being oxidatively cleaved. The molecular weight of B must not be so high that the resulting amount of D in the emulsion layer is insufficient to yield a dye image having a reflection optical density of at least 0.3 or a transmission optical density of at least 0.2. Advantages of the heat-developable photothermographic materials of this invention include the following:(1) capability of providing of pure, clear, and stable positive dye images at high photographic speed;(2) low silver requirement; and(3) reduced background stain.

    摘要翻译： 能够提供稳定的高分辨率彩色图像的可热成像光热敏成像材料。 这些材料包括承载成像组合物层的载体，其包含：（a）感光卤化银，（b）有机银化合物，（c）银离子还原剂和（d）粘合剂。 还原剂包括压载的无色染料化合物。 镇静无色染料化合物包含通式为D-B的化合物，其中D表示热移动染料的还原生色团; 并且B表示降低上述粘合剂中D的热迁移率的有机基团，所述有机基团B能够被氧化裂解。 B的分子量不能太高，乳液层中D的产生量不足以产生具有至少为0.3的反射光密度或至少为0.2的透射光密度的染料图像。 本发明的热显影光热成像材料的优点包括：（1）以高照相速度提供纯净，清晰和稳定的正染料影像的能力; （2）低银需求; 和（3）减少背景污点。

    Color thermal diffusion-transfer with leuco dye reducing agent
    8.
    发明授权
    Color thermal diffusion-transfer with leuco dye reducing agent 失效
    彩色热扩散转移与无色染料还原剂

    公开(公告)号：US4594307A

    公开(公告)日：1986-06-10

    申请号：US727393

    申请日：1985-04-25

    申请人： Takuzo Ishida

    发明人： Takuzo Ishida

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

    CPC分类号： G03C8/4013

    摘要： A photothermographic composite structure and process for its use provides a color image by thermal diffusion. The photothermographic composite structure comprises:(a) an image-receiving element comprising a polymeric image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to the image-receiving element, an imageable photothermographic element comprising in at least one layer, thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to the silver source material, if necessary a reducing agent for silver ion, and a leuco base dye.

    摘要翻译： 光热复合结构及其使用方法通过热扩散提供彩色图像。 光热敏成像复合结构包括：（a）图像接收元件，其包含玻璃化转变温度在20℃至200℃范围内的聚合物图像接收层，和（b）可剥离地粘附到图像接收元件 ，可成像的光热敏成像元件，其在至少一层中包含粘合剂，银源材料，催化接近银源材料的光敏卤化银，如果需要，还包含银离子的还原剂和无色碱性染料。