GB937387A - Method of incorporating lipophilic color formers in hydrophilic colloids - Google Patents
Method of incorporating lipophilic color formers in hydrophilic colloidsInfo
- Publication number
- GB937387A GB937387A GB19139/61A GB1913961A GB937387A GB 937387 A GB937387 A GB 937387A GB 19139/61 A GB19139/61 A GB 19139/61A GB 1913961 A GB1913961 A GB 1913961A GB 937387 A GB937387 A GB 937387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- coupler
- solution
- lipophilic
- dissolved
- 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
- G03C7/388—Processes for the incorporation in the emulsion of substances liberating photographically active agents or colour-coupling substances; Solvents therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
937,387. Photographic colour material. GENERAL ANILINE & FILM CORPORATION. May 26, 1961 [July 26, 1960], No. l9139/61. Class 98 (2). Lipophilic, non-diffusing colour couplers containing an alkylphenoxy group wherein the alkyl chain contains 10-20 carbon atoms are incorporated in silver halide emulsions by dissolving the coupler in a water-miscible organic solvent in the presence of at least one molar equivalent of an alkali metal hydroxide, forming an aqueous coupler solution by adding more water than the amount of solvent present and mixing this solution with an emulsion. A lipophilic coupler is defined as water insoluble and not containing any water-solubilising groups but which can be dissolved in a watermiscible organic solvent. Specified couplers are those of Specification 852,922 and preferred organic solvents are ethanol, propanol, isopropanol and dimethylformamide. In the example, a coupler of formula is dissolved in dimethylformamide containing sodium hydroxide. This solution is diluted with water, combined with an aqueous gelatin solution and then further diluted with water before being combined with a gelatin silver halide emulsion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4528060A | 1960-07-26 | 1960-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB937387A true GB937387A (en) | 1963-09-18 |
Family
ID=21936989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19139/61A Expired GB937387A (en) | 1960-07-26 | 1961-05-26 | Method of incorporating lipophilic color formers in hydrophilic colloids |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE605775A (en) |
| CA (1) | CA680937A (en) |
| DE (1) | DE1182068B (en) |
| FR (1) | FR1304059A (en) |
| GB (1) | GB937387A (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE733407C (en) * | 1935-08-07 | 1943-03-26 | Ig Farbenindustrie Ag | Process for the preparation of halogen silver emulsion layers for color photography |
| DE725872C (en) * | 1935-08-07 | 1942-10-01 | Ig Farbenindustrie Ag | Process for the production of halogen silver emulsion layers for single or multi-layer color photographic material |
| DE726611C (en) * | 1936-02-21 | 1942-10-16 | Ig Farbenindustrie Ag | Process for the preparation of halogen silver emulsion layers with dye formers for color photography |
| DE745046C (en) * | 1939-06-09 | 1944-02-24 | Zeiss Ikon Ag | The use of diffusion-resistant color formers to produce a blue-green partial image according to the color development process |
| BE442631A (en) * | 1940-08-16 | |||
| US2346080A (en) * | 1942-06-12 | 1944-04-04 | Eastman Kodak Co | Acylaminohydroxydiphenyl coupler |
| US2772162A (en) * | 1954-11-03 | 1956-11-27 | Eastman Kodak Co | Diacylaminophenol couplers |
-
0
- BE BE605775D patent/BE605775A/xx unknown
- CA CA680937A patent/CA680937A/en not_active Expired
-
1961
- 1961-05-26 GB GB19139/61A patent/GB937387A/en not_active Expired
- 1961-07-14 DE DEG32722A patent/DE1182068B/en active Pending
- 1961-07-18 FR FR868218A patent/FR1304059A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1304059A (en) | 1962-09-21 |
| DE1182068B (en) | 1964-11-19 |
| BE605775A (en) | |
| CA680937A (en) | 1964-02-25 |
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