GB454498A - Improvements in colour photography - Google Patents
Improvements in colour photographyInfo
- Publication number
- GB454498A GB454498A GB9869/35A GB986935A GB454498A GB 454498 A GB454498 A GB 454498A GB 9869/35 A GB9869/35 A GB 9869/35A GB 986935 A GB986935 A GB 986935A GB 454498 A GB454498 A GB 454498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- sodium
- quinone
- methyl
- alcohols
- 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
-
- 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
- G03C7/26—Silver halide emulsions for subtractive colour processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Pyridine Compounds (AREA)
Abstract
454,498. Colour photography. KODAK, Ltd., Kingsway, London.-(Eastman Kodak Co. ; 343, State Street, Rochester, New York, U.S.A.) March 29, 1935, No. 9869. Addition to 427,518. [Class 98 (ii)] In processing photographic elements consisting of two or more layers containing colour record images on a single support, as described in the parent Specification in which the diffusion of the bleaching bath or developing bath is controlled by the addition of water-soluble loading agents, the agents are such as to produce an anti-swelling effect by increasing the viscosity of the bath or by producing a repelling effect on the gelatin. As loading agents sugar, cellulose derivatives, alcohols containing more than two carbon atoms such as normal propyl, iso-propyl, butyl, and amyl alcohols, ketones such as acetone, alkyl- or alkyloxy-amines, acylated or not, e.g. methyl-, ethyl-, propylamine triethanolamine, N-methyl acetamide, and acetamide, polyhydric alcohols such as glycol, ethylene and propylene glycol, dihydroxyethylether, and glycerol, colloids such as gelatin, glue, gum arable, gum tragacanth, dextrine, and starches, and inert salts such as sodium chloride and potassium sulphate may be used. Examples are given of bleaching baths containing (1) quinone, methyl alcohol, HC1, sugar, and sodium chloride; (2) glycerine, isopropyl alcohol, quinone, and HCl ; (3) ethylene glycol, quinone, and HC1 ; of a stop bath containing sodium bicarbonate, glycerine, and isopropyl alcohol; developing baths containing (1) hydroquinone, sodium sulphite, KOH, and Na2SO4 ; (2) amidol, sodium sulphite, and Na2SO4 ; and stop baths for terminating the development comprising (1) sodium bisulphite and glacial acetic acid or (2) glacial acetic acid alone. Specifications 427,472, 440,032, 440,089, 447,092, and 454,499 are referred to.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8517A US2059887A (en) | 1935-02-27 | 1935-02-27 | Differential treatment of multilayer films |
GB9869/35A GB454498A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
GB25940/36A GB454622A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
GB9870/35A GB454499A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
DEK138457D DE678167C (en) | 1935-02-27 | 1935-07-02 | Process for carrying out the continuous diffusion of treatment baths for the development of multilayer films that remain unseparated |
FR803237D FR803237A (en) | 1935-02-27 | 1936-02-27 | Process for differentiated treatment of films or films with several layers of emulsions |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8517A US2059887A (en) | 1935-02-27 | 1935-02-27 | Differential treatment of multilayer films |
GB9869/35A GB454498A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
GB9870/35A GB454499A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB454498A true GB454498A (en) | 1936-09-29 |
Family
ID=27255437
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25940/36A Expired GB454622A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
GB9869/35A Expired GB454498A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
GB9870/35A Expired GB454499A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25940/36A Expired GB454622A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9870/35A Expired GB454499A (en) | 1935-02-27 | 1935-03-29 | Improvements in colour photography |
Country Status (4)
Country | Link |
---|---|
US (1) | US2059887A (en) |
DE (1) | DE678167C (en) |
FR (1) | FR803237A (en) |
GB (3) | GB454622A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE969811C (en) * | 1938-12-18 | 1958-07-17 | Agfa Ag | Process for the production of multicolor cinematographic images with sound recording |
US2439901A (en) * | 1941-12-27 | 1948-04-20 | Henry T Neumann | Method for producing colored photographs |
US2543179A (en) * | 1942-03-13 | 1951-02-27 | Polaroid Corp | Developer for dichroic iodine images |
US2507183A (en) * | 1945-03-23 | 1950-05-09 | Eastman Kodak Co | Silver bleach for color materials |
US2428208A (en) * | 1945-06-20 | 1947-09-30 | Eastman Kodak Co | Dichromate bleach bath containing a wetting agent and method of bleaching therewith |
US2454001A (en) * | 1945-11-08 | 1948-11-16 | Gen Aniline & Film Corp | Control of contrast with aromatic diamine color developers |
US2529981A (en) * | 1945-11-28 | 1950-11-14 | Eastman Kodak Co | Bleaching silver images |
US2661293A (en) * | 1946-10-08 | 1953-12-01 | Polaroid Corp | Process of producing a colored photographic image by means of exhaustion of developer |
BE476660A (en) * | 1946-10-16 | |||
US2612447A (en) * | 1947-01-13 | 1952-09-30 | Raibourn Paul | Photographic processing |
US2567401A (en) * | 1947-04-18 | 1951-09-11 | Raibourn Paul | Process of producing colored photographs |
US2647056A (en) * | 1948-02-12 | 1953-07-28 | Polaroid Corp | One step photographic transfer process |
DE941340C (en) * | 1950-07-11 | 1956-04-05 | C Schleussner Fotowerke G M B | Process for color development of light-sensitive films containing diffusion-resistant color formers with the aid of color developers |
US2767649A (en) * | 1952-02-15 | 1956-10-23 | Technicolor Motion Picture | Method of printing pictures by imbibition |
US3137575A (en) * | 1960-11-01 | 1964-06-16 | Du Pont | Photographic silver halide emulsions and elements containing a polyfructose |
US4256826A (en) * | 1978-08-14 | 1981-03-17 | Eastman Kodak Company | Bleach-fix sheets |
-
1935
- 1935-02-27 US US8517A patent/US2059887A/en not_active Expired - Lifetime
- 1935-03-29 GB GB25940/36A patent/GB454622A/en not_active Expired
- 1935-03-29 GB GB9869/35A patent/GB454498A/en not_active Expired
- 1935-03-29 GB GB9870/35A patent/GB454499A/en not_active Expired
- 1935-07-02 DE DEK138457D patent/DE678167C/en not_active Expired
-
1936
- 1936-02-27 FR FR803237D patent/FR803237A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB454622A (en) | 1936-09-29 |
GB454499A (en) | 1936-09-29 |
US2059887A (en) | 1936-11-03 |
DE678167C (en) | 1939-07-11 |
FR803237A (en) | 1936-09-25 |
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