GB729388A - Improvements in single powder photographic developers - Google Patents
Improvements in single powder photographic developersInfo
- Publication number
- GB729388A GB729388A GB17744/53A GB1774453A GB729388A GB 729388 A GB729388 A GB 729388A GB 17744/53 A GB17744/53 A GB 17744/53A GB 1774453 A GB1774453 A GB 1774453A GB 729388 A GB729388 A GB 729388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- metaboric acid
- sulphite
- monomethyl
- june
- 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
- G03C5/265—Supplying of photographic processing chemicals; Preparation or packaging thereof of powders, granulates, tablets
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
729,388. Photographic developing compositions. KODAK, Ltd. June 26, 1953 [June 26, 1952], No. 17744/53. Class 98 (2). A single-powder photographic developing composition contains an organic silver halide developing agent, a water-soluble and photographically compatible basic ingredient such as an alkali metal borate, sulphite, or carbonate, and, as a stabilizing agent, metaboric acid. An antifogging agent, e.g. 5-methylbenztriazole and a restrainer, e.g. potassium bromide may also be included. Numerous developing compositions are specified, including (a) sodium sulphite, sodium carbonate, potassium iodide, metaboric acid, hydroquinone and monomethyl-p-aminophenol sulphate, and (b) monomethyl-p-aminophenol sulphate, sodium sulphite, sodium metaborate and metaboric acid. Specifications 585,366 and 698,311 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US295834A US2666703A (en) | 1952-06-26 | 1952-06-26 | Single-powder photographic developers stabilized with metaboric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB729388A true GB729388A (en) | 1955-05-04 |
Family
ID=23139409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17744/53A Expired GB729388A (en) | 1952-06-26 | 1953-06-26 | Improvements in single powder photographic developers |
Country Status (4)
Country | Link |
---|---|
US (1) | US2666703A (en) |
BE (1) | BE520998A (en) |
FR (1) | FR1079629A (en) |
GB (1) | GB729388A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE536991A (en) * | 1954-04-01 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE509125A (en) * | 1951-02-09 |
-
0
- BE BE520998D patent/BE520998A/xx unknown
-
1952
- 1952-06-26 US US295834A patent/US2666703A/en not_active Expired - Lifetime
-
1953
- 1953-06-26 GB GB17744/53A patent/GB729388A/en not_active Expired
- 1953-06-26 FR FR1079629D patent/FR1079629A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1079629A (en) | 1954-12-01 |
US2666703A (en) | 1954-01-19 |
BE520998A (en) |
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