GB1032925A - A photographic developer - Google Patents
A photographic developerInfo
- Publication number
- GB1032925A GB1032925A GB1096363A GB1096363A GB1032925A GB 1032925 A GB1032925 A GB 1032925A GB 1096363 A GB1096363 A GB 1096363A GB 1096363 A GB1096363 A GB 1096363A GB 1032925 A GB1032925 A GB 1032925A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photographic developer
- photographic
- ferrania
- pyrazolidone
- dialkyl
- 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
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
- G03C7/4136—Developers p-Phenylenediamine or derivatives thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
1,032,925. Photographic developer. FERRANIA S.p.A. March 20,1963,No.10963/63. Heading G2C. A photographic developer suitable for both black-and-white and colour development comprises 2g./1.each of 1-phenyl-3-pyrazolidone and an N:N -dialkyl-para-phenylene-diamine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR912001A FR1343731A (en) | 1962-10-11 | 1962-10-11 | Process for mixed white and black photographic development to achieve an effect equivalent to an increase in the original sensitivity, and mixed developer thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1032925A true GB1032925A (en) | 1966-06-15 |
Family
ID=8788539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1096363A Expired GB1032925A (en) | 1962-10-11 | 1963-03-20 | A photographic developer |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE629777A (en) |
FR (1) | FR1343731A (en) |
GB (1) | GB1032925A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941599A (en) * | 1972-11-15 | 1976-03-02 | Minnesota Mining And Manufacturing Company | Method for obtaining a color contrast photographic image, photographic element and development composition suitable for the realization of said method |
-
0
- BE BE629777D patent/BE629777A/xx unknown
-
1962
- 1962-10-11 FR FR912001A patent/FR1343731A/en not_active Expired
-
1963
- 1963-03-20 GB GB1096363A patent/GB1032925A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1343731A (en) | 1963-11-22 |
BE629777A (en) |
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