摘要:
The present invention relates to a process for forming a yellow color image which requires contacting exposed silver halide grain with a developer in the presence of a particular yellow coupler.
摘要:
An improved photographic system in which a new yellow coupler is employed. The yellow coupler has the formula, ##STR1## wherein X is a --N= or --CH= group; Cp is a residue formed by removing one hydrogen atom of the active methylene group of an acetanilide yellow coupler; n is an integer of 1 to 4; and R is a hydrogen or halogen atom, or an alkyl, alkoxy, alkylcarbonyl, aryl, arylcarbonyl, amino, acylamino, carboxyl, nitrile, aralkyl or aralkyloxy group, provided that in case n is 2 or more the R groups may be the same or different, and two adjacent R groups in combination may form a benzene ring.
摘要:
A coloured magenta coupler for photography is disclosed which is represented by the following general formula: ##STR1## wherein R is substituted phenyl, R.sub.1 and R.sub.2 individually stand for hydrogen, halogen, hydroxyl, alkyl, alkoxy or acylamino, with the proviso that one of R.sub.1 and R.sub.2 is hydroxyl but that both are not hydroxyl simultaneously, R.sub.3 is hydrogen, halogen, alkyl, nitro or acylamino and R.sub.4 stands for hydrogen, halogen or a monovalent organic residue.
摘要翻译:公开了用于摄影的着色品红色成色剂,其由以下通式表示:其中R是取代的苯基,R 1和R 2各自代表氢,卤素,羟基,烷基,烷氧基或酰氨基,条件是 R 1和R 2是羟基,但同时不是羟基,R 3是氢,卤素,烷基,硝基或酰基氨基,R 4代表氢,卤素或一价有机残基。
摘要:
A cyan coupler of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7, incorporated in a light-sensitive silver halide photographic material produces a cyan dye photographic image which is favorable in light absorption characteristics and excellent in fastness when the coupler is developed with an aromatic primary amine type developing agent.
摘要:
The present invention relates to a process for forming photographic images using a 2-equivalent magenta coupler position a radical of the following general formula:--O--SO.sub.2 --Rwhere R is an aliphatic hydrocarbon, aromatic hydrocarbon or heterocyclic residue.
摘要:
A process for forming a photographic magenta dye image is disclosed which requires contacting exposed silver halide with a color developing agent in the presence of a particular class of 2-equivalent magenta couplers.
摘要:
A silver halide photosensitive element using specifically defined yellow, magenta and cyan color couplers in the individual respectively blue, green and red-sensitive layers.