JPS5579444A - Photographic reducing solution - Google Patents
Photographic reducing solutionInfo
- Publication number
- JPS5579444A JPS5579444A JP15389078A JP15389078A JPS5579444A JP S5579444 A JPS5579444 A JP S5579444A JP 15389078 A JP15389078 A JP 15389078A JP 15389078 A JP15389078 A JP 15389078A JP S5579444 A JPS5579444 A JP S5579444A
- Authority
- JP
- Japan
- Prior art keywords
- ammonium
- alum
- reducing solution
- inorganic
- ceric
- 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.)
- Pending
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
- G03C5/40—Chemically transforming developed images
- G03C5/42—Reducing; Intensifying
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
PURPOSE:To obtain a photographic reducing solution capable of suppressing lowering of dot density and yet raising the speed of decrease (reduction) of dot sizes, by adding specified inorganic salts to an aqueous solution of a ceric compound and an inorganic acid. CONSTITUTION:To a reducing solution of an aqueous solution of ceric compound such as ceric sulfate and an inorganic acid such as sulfuric acid are added further an inorganic ammonium salt (a), such as ammonium nitrate, ammonium sulfate, or ammonium chloride by about 0.1% or more; a borate such as borax (b) by about 0.1% or more; and an alum (c), such as potassium alum, chromium alum, or ammonium alum by about 0.1% or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15389078A JPS5579444A (en) | 1978-12-11 | 1978-12-11 | Photographic reducing solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15389078A JPS5579444A (en) | 1978-12-11 | 1978-12-11 | Photographic reducing solution |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5579444A true JPS5579444A (en) | 1980-06-14 |
Family
ID=15572342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15389078A Pending JPS5579444A (en) | 1978-12-11 | 1978-12-11 | Photographic reducing solution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5579444A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0514675A1 (en) | 1991-04-22 | 1992-11-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic materials and method for processing the same |
-
1978
- 1978-12-11 JP JP15389078A patent/JPS5579444A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0514675A1 (en) | 1991-04-22 | 1992-11-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic materials and method for processing the same |
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