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    • 51. 发明授权
    • Dyestuffs containing amino or imino groups
    • 含氨基或亚氨基的染料
    • US4237281A
    • 1980-12-02
    • US014780
    • 1979-02-23
    • William E. Long
    • William E. Long
    • C07D241/46C07D279/18C09B15/00C09B17/00C09B19/00C09B21/00C09B55/00G03C7/28G03C8/08G03C8/10C07D265/38C07D279/36
    • C07D279/18C07D241/46C09B15/00C09B17/00C09B19/00C09B21/00G03C7/28G03C8/08G03C8/10
    • Novel dyestuffs containing amino or imino groups and their preparation are provided.These dyestuffs have the general formula ##STR1## wherein R is --N(R.sub.3)CH.sub.2 --Z or --N.dbd.CH--Z, X is N or CR.sub.6 where R.sub.6 is a hydrogen atom or an optionally substituted alkyl or aryl group, Y is S.sup..sym., O.sup..sym., N or N.sup..sym. R.sub.7 where R.sub.7 is a hydrogen atom or an optionally substituted alkyl or aryl group, R.sub.1, R.sub.1 and R.sub.2 each represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the nitrogen atom complete a heterocyclic ring, or one of R.sub.1 and R.sub.2 can be hydrogen and the other of R.sub.1 and R.sub.2 can be aryl, Z is a group which comprises both an activating group which contains at least one double bond system and also a ballasting group and R.sub.4 and R.sub.5 each represent optional substituents or form an annelated benzene ring. The new dyestuffs are useful in the photographic field especially in the photographic dye diffusion transfer process for the production of photographic images.
    • 提供了含氨基或亚氨基的新型染料及其制备方法。 这些染料具有通式,其中R是-N(R3)CH2-Z或-N = CH-Z,X是N或CR6,其中R6是氢原子或任选取代的烷基或芳基,Y是 S(+),O(+),N或N(+)R7,其中R7是氢原子或任选取代的烷基或芳基,R 1,R 1和R 2各自表示氢原子或烷基, 4个碳原子,或者R1和R2与氮原子一起完成一个杂环,或者R 1和R 2中的一个可以是氢,R 1和R 2中的另一个可以是芳基,Z是包含活性基团的基团, 至少一个双键体系和还有一个压载基团,R4和R5各自代表任选的取代基或形成一个环状的苯环。 新的染料在照相领域中是有用的,特别是在用于制作摄影图像的照相染料扩散转移过程中。
    • 52. 发明授权
    • Method for processing silver dye-bleach materials
    • 银染料漂白材料的处理方法
    • US4186008A
    • 1980-01-29
    • US886870
    • 1978-03-15
    • Meinrad ScharMatthias Schellenberg
    • Meinrad ScharMatthias Schellenberg
    • G03C7/02G03C7/28G03C7/00
    • G03C7/28
    • A method for processing silver dye-bleach materials, with the process measures silver developing, dye bleaching, silver bleaching and fixing, wherein the silver and dye bleaching can be combined in a single treatment step is provided. For the silver bleaching or the combined dye and silver bleaching an acid formulation is used which has a pH value of at most 2 and contains a strong acid, a water-soluble iodide, optionally a water-soluble organic nitro compound, a non-quaternised quinoxaline or pyrazine, an anti-oxidant and at least one quaternary ammonium salt or a protonated tertiary organic nitrogen base. By this method the processing time can be shortened without impairing the quality of the colored images obtained.
    • 一种处理银染料漂白材料的方法,其中该方法测量银显影,染料漂白,银漂白和定影,其中银和染料漂白可以在单一处理步骤中组合。 对于银漂白或组合的染料和银漂白,使用pH值至多为2的酸配方,并含有强酸,水溶性碘化物,任选的水溶性有机硝基化合物,非季铵化的 喹喔啉或吡嗪,抗氧化剂和至少一种季铵盐或质子化叔有机氮碱。 通过这种方法,可以缩短处理时间,而不损害所获得的彩色图像的质量。
    • 54. 发明授权
    • Positive process using a low coating weight silver halide
    • 使用低涂层重量的卤化银的正过程
    • US4029509A
    • 1977-06-14
    • US632729
    • 1975-11-17
    • Ralph Kingsley Blake, deceased
    • Ralph Kingsley Blake, deceased
    • G03C5/00G03C1/00G03C5/29G03C5/50G03C7/00G03C7/28G03C5/32G03C1/76G03C5/24
    • G03C7/28G03C5/50
    • A process for obtaining camera speed direct positive images which employs a photographic element comprising a film support, a layer of photosensitive silver halide, and a layer containing a colorant (e.g. colloidal silver). The silver halide layer is first imagewise exposed, and the latent image developed in the presence of a compound capable of producing sulfide ions e.g. thiourea, and then the photographic element is immersed in a chemical bleach which removes the silver image generated in the silver halide layer and removes the colorant in the areas corresponding to the exposed areas of the silver halide layer, leaving a direct positive image in those areas of the colorant-containing layer which are directly under the unexposed nonimage areas of the silver halide layer.
    • 一种用于获得照相机速度直接正像的方法,其采用包含胶片载体,感光卤化银层和含有着色剂(例如胶体银)的层的照相元件。 首先将卤化银成像曝光,并且在能够产生硫化物离子的化合物的存在下显影潜像。 硫脲,然后将照相元件浸入化学漂白剂中,除去在卤化银层中产生的银图像,并除去与卤化银层的暴露区域相对应的区域中的着色剂,在这些区域中留下直接的正像 的含着色剂的层,其直接位于卤化银层的未曝光的非图像区域的下方。