GB562960A - Production of coloured photographic images - Google Patents
Production of coloured photographic imagesInfo
- Publication number
- GB562960A GB562960A GB16705/42A GB1670542A GB562960A GB 562960 A GB562960 A GB 562960A GB 16705/42 A GB16705/42 A GB 16705/42A GB 1670542 A GB1670542 A GB 1670542A GB 562960 A GB562960 A GB 562960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenyl
- pyrrole
- coupler
- phenylenediamine
- developing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/32—Colour coupling substances
- G03C7/36—Couplers containing compounds with active methylene groups
- G03C7/38—Couplers containing compounds with active methylene groups in rings
- G03C7/381—Heterocyclic compounds
- G03C7/3815—Heterocyclic compounds with one heterocyclic ring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Pyrrole Compounds (AREA)
Abstract
562,960. Coloured photographic images. STAMMERS, D. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 25, 1942, No. 16705. [Class 98 (ii)] A dye image is produced either by developing a reducible silver salt with an aromatic amino developing agent in the presence of a colour coupler which is a 2 : 4-diarylpyrrole of formula wherein R<1> and R<11> stand for aryl radicals (e.g. of the benzene or naphthalene series) substituted or not and the same or different and R<111> stands for H or for a non-reactive substituent (e.g. an aryl-, alkyl-, alkylamino-, benzylideneamino-, or acylamino-radical), or by treating material comprising a hardened colloid image with an oxidation product of such a developing agent or with a p-nitrosodialkylaniline or with a diazonium salt in the presence of such colour-coupler, or by treating material containing such colour coupler with a diazonium salt to give a uniformly dyed material and producing the coloured image by the dyedestruction process. 2 : 4 - Diarylpyrroles specified.are 2: 4-diphenylpyrrole, 2-(p-methoxyphenyl) - 4 - phenylpyrrole, 2 - phenyl - 4 - (p - methoxyphenyl)-pyrrole; 2-(m-hydroxyphenyl)- 4 - phenylpyrrole, 2 - phenyl - 4 - (m - hydroxyphenyl)-pyrrole, 2-(o-chlorophenyl)-4-phenylpyrrole, 2 - phenyl - 4 - (o - chlorophenyl) - pyrrole, 2 - phenyl - 4 - (p - bromophenyl) - pyrrole, 2 - (p - acetylaminophenyl)-4-phenylpyrrole, 2-alpha-naphthyl-4-phenylpyrrole, 2-phenyl-4-(alpha-naphthyl)- pyrrole, 2-phenyl-4-#-naphthylpyrrole, 2 : 3 : 4- triphenylpyrrole, 3 - benzoylamino - 2 : 4 - diphenylpyrrole, 3-acetylamino-2 : 4-diphenylpyrrole, and 3-benzoylamino-2:4-di-p-tolylpyrrole, and the corresponding sulphonic acids and their salts. Aromatic amino developing agents specified are p-aminodimethylaniline, p - aminodiethylaniline, p - amino - di - n butyl - aniline, p methylaminoaniline, p -ethylaminoaniline, chloro - p - phenylenediamine, 1: 2 : 5- toluylenediamine, 2 - amino - 5 - diethylaminotoluene, N-p-aminophenylpiperidine, N-methyl: N-#-hydroxyethyl-p-phenylenediamine, N-nbutyl : N-#-hydroxyethyl-p-phenylenediamine, # : gamma - dihydroxypropyl - p - phenylenediamine, and N : N-diethyl-o-phenylenediamine. The couplers may be in the developing solution or in the emulsion. Slightly soluble couplers may be incorporated in developing solutions using water-miscible organic solvents, e.g. ethanol. Dyes formed from some of the couplers show improved transmission in the blue region. The couplers may be incorporated in bichromatesensitized colloid (e.g. gelatin, gum arabic, or albumen) layers and after exposure and washing out unexposed colloid with hot water, colour is produced in the exposed parts by treatment with a p-nitrosodialkylaniline or a derivative thereof. Materials containing the couplers may be treated with'diazonium salts to form azo dyes which are then locally destroyed by the dye-destruction process, e.g. as described in Specifications 133,034, [Class 98 (ii)], and 496,558, to form dye images. In example 1, a colour developer comprises as developing agent 2 amino - 5 - diethylaminotoluene hydrochloride and as coupler 2-phenyl-4-(m-hydroxyphenyl)- pyrrole. Developed silver may be removed by successive treatments with aqueous potassium ferricyanide and aqueous sodium thiosulphate. In example 2, the developer is the same, but the coupler is the sodium salt of 2-phenyl-4-(ochlorophenyl)-pyrrolemonosulphonic acid. In example 3, the coupler is the sodium salt of 2 - phenyl - 4 - (p methoxyphenyl) - pyrrolemono - sulphonic acid. In example 4, the developing agent is N : N-diethyl-p-phenylenediamine sulphate, and the coupler the ammonium salt of 2: 4-diphenylpyrrolemonosulphonic acid. In example 5, 2-phenyl-4-(2-chlorophenyl)-pyrrole is incorporated in the emulsion, and acetone is added to the developing solution. The addition of other 2 : 4-diarylpyrroles to the emulsion is described. Specifications 540,368, and 541,558, and 554,102, 556,156 and 562,753, [all in Group IV], also are referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16705/42A GB562960A (en) | 1942-11-25 | 1942-11-25 | Production of coloured photographic images |
US510373A US2396396A (en) | 1942-11-25 | 1943-11-15 | Production of colored photographic images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16705/42A GB562960A (en) | 1942-11-25 | 1942-11-25 | Production of coloured photographic images |
Publications (1)
Publication Number | Publication Date |
---|---|
GB562960A true GB562960A (en) | 1944-07-24 |
Family
ID=10082181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16705/42A Expired GB562960A (en) | 1942-11-25 | 1942-11-25 | Production of coloured photographic images |
Country Status (2)
Country | Link |
---|---|
US (1) | US2396396A (en) |
GB (1) | GB562960A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE602250A (en) * | 1959-11-13 | |||
JP2699024B2 (en) * | 1990-11-22 | 1998-01-19 | 富士写真フイルム株式会社 | Novel dye-forming coupler and silver halide color photographic light-sensitive material containing the coupler |
JP2671058B2 (en) * | 1990-11-26 | 1997-10-29 | 富士写真フイルム株式会社 | Novel dye-forming coupler and silver halide color photographic light-sensitive material containing the coupler |
-
1942
- 1942-11-25 GB GB16705/42A patent/GB562960A/en not_active Expired
-
1943
- 1943-11-15 US US510373A patent/US2396396A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2396396A (en) | 1946-03-12 |
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