GB900103A - A highly concentrated colour developer - Google Patents
A highly concentrated colour developerInfo
- Publication number
- GB900103A GB900103A GB3270759A GB3270759A GB900103A GB 900103 A GB900103 A GB 900103A GB 3270759 A GB3270759 A GB 3270759A GB 3270759 A GB3270759 A GB 3270759A GB 900103 A GB900103 A GB 900103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- developer
- sulphate
- sept
- sequestering agent
- sulphite
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
- G03C5/266—Supplying of photographic processing chemicals; Preparation or packaging thereof of solutions or concentrates
-
- 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
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
900,103. Photographic colour developers. AGFA A.G. Sept. 25, 1959 [Sept. 26, 1958], No. 32707/59. Drawings to Specification. Class 98 (2). A photographic colour developer comprises an aqueous solution of pH 10.4 to 10.8 containing as components from 1 to 2 g./l. of an N- alkyl- and/or N-hydroxyalkyl-p-phenylene diamine sulphate, sulphite or hydrochloride, hydroxylamine sulphate, potassium carbonate, potassium bicarbonate, potassium bromide, an alkali metal sulphite and an amino carboxylic acid as a sequestering agent. The developer may be made up as two concentrated solutions, one containing the hydroxylamine sulphate and the N-substituted p-phenylene diamine salt, and the other containing the remaining components, the solutions being mixed and diluted before use. The sequestering agent may be ethylene diamine tetra-acetic acid. A number of very similar developer compositions are described for comparison purposes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA0030409 | 1958-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB900103A true GB900103A (en) | 1962-07-04 |
Family
ID=6927212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3270759A Expired GB900103A (en) | 1958-09-26 | 1959-09-25 | A highly concentrated colour developer |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE583020A (en) |
CH (1) | CH397422A (en) |
DE (1) | DE1072097B (en) |
FR (1) | FR1238991A (en) |
GB (1) | GB900103A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3462269A (en) * | 1966-08-01 | 1969-08-19 | Minnesota Mining & Mfg | Stabilized color developing solution containing diethylenetriamine pentaacetic acid |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2281594A1 (en) * | 1974-08-06 | 1976-03-05 | Hunt Chem Corp Philip A | Storage stable, colour developer concentrate giving true colours - contg. an N,N-disubstd. p-phenylene diamine salt with a phosphoric acid |
FR2420153A1 (en) * | 1978-03-15 | 1979-10-12 | Minnesota Mining & Mfg | CONCENTRATED LIQUID COMPOSITIONS OF DEVELOPERS AND THEIR APPLICATION TO COLOR PHOTOGRAPHY |
-
0
- DE DENDAT1072097D patent/DE1072097B/de active Pending
- BE BE583020D patent/BE583020A/xx unknown
-
1959
- 1959-09-22 CH CH7850559A patent/CH397422A/en unknown
- 1959-09-25 FR FR806000A patent/FR1238991A/en not_active Expired
- 1959-09-25 GB GB3270759A patent/GB900103A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3462269A (en) * | 1966-08-01 | 1969-08-19 | Minnesota Mining & Mfg | Stabilized color developing solution containing diethylenetriamine pentaacetic acid |
Also Published As
Publication number | Publication date |
---|---|
FR1238991A (en) | 1960-08-19 |
BE583020A (en) | |
CH397422A (en) | 1965-08-15 |
DE1072097B (en) | 1959-12-24 |
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