GB871684A - A silver halide photographic developer - Google Patents
A silver halide photographic developerInfo
- Publication number
- GB871684A GB871684A GB1593859A GB1593859A GB871684A GB 871684 A GB871684 A GB 871684A GB 1593859 A GB1593859 A GB 1593859A GB 1593859 A GB1593859 A GB 1593859A GB 871684 A GB871684 A GB 871684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- silver halide
- pyrazolone
- halide photographic
- photographic developer
- 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
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
871,684. Photographic developers. AGFA A. G. May 8, 1959 [May 10, 1958], No. 15938/59. Class 98(2) A photographic silver halide developer solution comprises a 4-amino-5-pyrazolone, hydroquinone and either 1-phenyl-3-pyrazolidone or 1-(p-aminophenyl)-3-amino-pyrazoline. The 4-amino-5-pyrazolone may be one of those disclosed in Specification 765,286, especially 1-phenyl- 4-amino- 5-pyrazolone- 3- carboxylic acid and its amides and esters. In the examples, the developer solutions contain also sodium sulphite, sodium carbonate and sodium hexametaphosphate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA29466A DE1079455B (en) | 1958-05-10 | 1958-05-10 | Photographic developer containing 4-amino-5-pyrazolone compounds and hydroquinone |
Publications (1)
Publication Number | Publication Date |
---|---|
GB871684A true GB871684A (en) | 1961-06-28 |
Family
ID=6926934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1593859A Expired GB871684A (en) | 1958-05-10 | 1959-05-08 | A silver halide photographic developer |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE578539A (en) |
CH (1) | CH379921A (en) |
DE (1) | DE1079455B (en) |
FR (1) | FR1223865A (en) |
GB (1) | GB871684A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772019A (en) * | 1972-05-19 | 1973-11-13 | H & W Co Inc St Johnsbury | Novel developer and process |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE955025C (en) * | 1954-03-15 | 1956-12-27 | Agfa Aktiengesellschft Fuer Ph | Photographic developer |
DE1024798B (en) * | 1956-08-16 | 1958-02-20 | Leonar Werke Ag | Fixing developer for the rapid development of photographic layers |
-
0
- BE BE578539D patent/BE578539A/xx unknown
-
1958
- 1958-05-10 DE DEA29466A patent/DE1079455B/en active Pending
-
1959
- 1959-05-08 GB GB1593859A patent/GB871684A/en not_active Expired
- 1959-05-09 FR FR794236A patent/FR1223865A/en not_active Expired
- 1959-05-09 CH CH7306459A patent/CH379921A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772019A (en) * | 1972-05-19 | 1973-11-13 | H & W Co Inc St Johnsbury | Novel developer and process |
Also Published As
Publication number | Publication date |
---|---|
FR1223865A (en) | 1960-06-21 |
BE578539A (en) | |
CH379921A (en) | 1964-07-15 |
DE1079455B (en) | 1960-04-07 |
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