申请人:CIBA-GEIGY AG
公开号:EP0071570A1
公开(公告)日:1983-02-09
Process for the production of a photographic black dye Image which comprises
(a) imagewise exposing photographic silver halide material comprising at least one silver halide emulsion layer coated on a support, there being present in the silver halide emulsion layerls) or in a layer in operative contact with at least one silver halide emulsion layer a resorcinol compound of the formula
where each of W, Y and Z is hydrogen, chlorine or bromine, a nitrogen-linked heterocycle, -SR1 where R, is alkyl, aryl or a heterocycle or W, Y or Z is acylamino or -R3 where -R3 is alkyl, cycloalkyl or aralkyl or Z alone is -CO-R, where R, is as just defined but at least one of W, Y and Z must be -R3, and X which is the coupling position is hydrogen, chlorine or bromine, a nitrogen-linked heterocycle or -SR,,
(b) colour developing the exposed material using a colour developing solution which comprises an aqueous alkaline solution of a primary aromatic amine colour developing agent to form simultaneously a silver image and a black dye image.
(c) optionally bleaching the silver image, and ten
(d) fixing out all the silver halide in the material using an aqueous solution of a silver halide solvent.
生产感光黑色染料图像的工艺,包括
(a) 以图像方式曝光照相卤化银材料,该材料包括涂布在支持物上的至少一个卤化银乳剂层,在卤化银乳剂层l)中或在与至少一个卤化银乳剂层有效接触的层中存在有式如下的间苯二酚化合物
其中 W、Y 和 Z 各为氢、氯或溴、氮链杂环、-SR1(其中 R 为烷基、芳基或杂环)或 W、Y 或 Z 为酰氨基或-R3(其中 -R3 为烷基)、其中-R3 是烷基、环烷基或芳烷基,或仅 Z 是-CO-R,其中 R 如前定义,但 W、Y 和 Z 中至少有一个必须是-R3,而作为偶联位置的 X 是氢、氯或溴、氮链杂环或-SR、
(b) 使用由芳香族伯胺显色剂的碱性水溶液组成的显色溶液对曝光材料进行显色,以同时形成银色图像和黑色染料图像。
(c) 漂白银色图像,以及
(d) 用一种卤化银溶剂的水溶液将材料中的卤化银全部定影。