Photothermographic, composition using a phenolic leuco dye as a reducing
agent
    1.
    发明授权
    Photothermographic, composition using a phenolic leuco dye as a reducing agent 失效
    光热成像,使用酚类无色染料作为还原剂

    公开(公告)号:US3985565A

    公开(公告)日:1976-10-12

    申请号:US488094

    申请日:1974-07-12

    CPC分类号: G03C1/49854

    摘要: In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) a silver salt of a long-chain fatty acid and (c) a phenolic leuco dye reducing agent for the silver salt of a long-chain fatty acid provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be obtained by heating the photothermographic element or composition containing this combination. This combination can be in a diffusion transfer, photothermographic element.

    摘要翻译: 在光热照相元件,用于利用加热处理产生显影图像的组合物或方法中,包括(a)照相卤化银与(b)长链脂肪酸的银盐和(c)酚类无色素染料 长链脂肪酸的银盐的还原剂提供了颜色的图像。 在光热敏成像元件或组合物的成像曝光之后,可以通过加热含有该组合的光热敏成像元件或组合物来获得彩色图像。 这种组合可以在扩散转移光热敏成像元件中。

    Dye precursors and their use in photographic materials and processes
    3.
    发明授权
    Dye precursors and their use in photographic materials and processes 失效
    染料前体及其在照相材料和工艺中的应用

    公开(公告)号:US4552980A

    公开(公告)日:1985-11-12

    申请号:US488222

    申请日:1983-04-25

    摘要: A diphenylamine compound that is a precursor for a phenazine dye comprises, in an ortho position to the amine of the diphenylamine, a sulfonyldiamido group (--NHSO.sub.2 NHR) that is capable of releasing a sulfonylamine fragment upon oxidation. The diphenylamine compound upon oxidation intramolecularly cyclizes to a phenazine dye. The sulfonylamine fragment is capable of thermally releasing ammonia or an amine. The diphenylamine compound and sulfonylamine fragment are useful in imaging such as in photothermography. Ammonia or an amine thermally released from the sulfonylamine fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The diphenylamine compound also generally is a silver halide developing agent.

    摘要翻译: 作为吩嗪染料的前体的二苯胺化合物在与二苯基胺的邻位的邻位含有在氧化时能够释放磺酰胺片段的磺酰基二酰氨基(-NHSO 2 NHR)。 二苯胺化合物氧化分子内环化为吩嗪染料。 磺酰胺片段能够热释放氨或胺。 二苯胺化合物和磺酰胺片段可用于诸如光热照相术的成像。 从磺酰胺片段热释放的氨或胺使得能够对对氨或胺有反应的成像材料进行成像。 二苯胺化合物通常也是卤化银显影剂。

    Dye precursors and their use in photographic materials and processes

    公开(公告)号:US4411984A

    公开(公告)日:1983-10-25

    申请号:US373915

    申请日:1982-05-03

    摘要: A diphenylamine compound that is a precursor for a phenazine dye comprises, in an ortho position to the amine of the diphenylamine, a sulfonyldiamido group (--NHSO.sub.2 NHR) that is capable of releasing a sulfonylamine fragment upon oxidation. The diphenylamine compound upon oxidation intramolecularly cyclizes to a phenazine dye. The sulfonylamine fragment is capable of thermally releasing ammonia or an amine. The diphenylamine compound and sulfonylamine fragment are useful in imaging such as in photothermography. Ammonia or an amine thermally released from the sulfonylamine fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The diphenylamine compound also generally is a silver halide developing agent.

    Color-forming para-sulfonamidodiphenylamine dye precursor and
sulfonimide dye in photographic material and process
    8.
    发明授权
    Color-forming para-sulfonamidodiphenylamine dye precursor and sulfonimide dye in photographic material and process 失效
    着色成型对磺酰氨基二苯胺染料前体和磺酰亚胺染料在照相材料和工艺中

    公开(公告)号:US4390606A

    公开(公告)日:1983-06-28

    申请号:US394349

    申请日:1982-07-01

    摘要: A color-forming para-sulfonamidodiphenylamine dye precursor in a photographic material and process enables formation of a sulfonimide dye image by means of cross-oxidation without the need for a coupling reaction. The color-forming para-sulfonamidodiphenylamine dye precursor is useful in a photographic silver halide material for producing (i) a dye image, or (ii) a dye image and silver image. The exposed photographic material is processed to produce (a) a positive dye image, (b) a negative dye and negative silver image, (c) a negative dye image or (d) a positive dye image and a positive silver image.

    摘要翻译: 照相材料和方法中的着色形成对磺酰氨基二苯胺染料前体使得能够通过交叉氧化形成磺酰亚胺染料图像,而不需要偶联反应。 成色对位磺酰胺基二苯胺染料前体可用于产生(i)染料图像的照相卤化银材料,或(ii)染料图像和银图像。 处理曝光的照相材料以产生(a)正染料图像,(b)阴性染料和负银图像,(c)负染料图像或(d)正染料图像和正银图像。