GB725573A - Improvements in photographic development - Google Patents
Improvements in photographic developmentInfo
- Publication number
- GB725573A GB725573A GB3986/53A GB398653A GB725573A GB 725573 A GB725573 A GB 725573A GB 3986/53 A GB3986/53 A GB 3986/53A GB 398653 A GB398653 A GB 398653A GB 725573 A GB725573 A GB 725573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- added
- developers
- acid
- diamino
- propanol
- 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
- CIAMOALLBVRDDK-UHFFFAOYSA-N 1,1-diaminopropan-2-ol Chemical compound CC(O)C(N)N CIAMOALLBVRDDK-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- CMHJKGDUDQZWBN-UHFFFAOYSA-N 2-(methylamino)-3-oxobutanoic acid Chemical compound CNC(C(C)=O)C(O)=O CMHJKGDUDQZWBN-UHFFFAOYSA-N 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 1
- MJPXFHUUIAIRSC-UHFFFAOYSA-N acetic acid;1,1-diaminopropan-1-ol Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CCC(N)(N)O MJPXFHUUIAIRSC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 229960001484 edetic acid Drugs 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 159000000003 magnesium salts Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
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
- G03C5/305—Additives other than developers
- G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US271284A US2656273A (en) | 1952-02-12 | 1952-02-12 | Photographic developers containing diamino-propanol tetracetic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725573A true GB725573A (en) | 1955-03-09 |
Family
ID=23034929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3986/53A Expired GB725573A (en) | 1952-02-12 | 1953-02-12 | Improvements in photographic development |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2656273A (enrdf_load_stackoverflow) |
| CA (1) | CA528734A (enrdf_load_stackoverflow) |
| FR (1) | FR1085004A (enrdf_load_stackoverflow) |
| GB (1) | GB725573A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467521A (en) * | 1965-05-03 | 1969-09-16 | Agfa Gevaert Ag | Developer compositions containing sequestering agents |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860978A (en) * | 1954-04-01 | 1958-11-18 | Eastman Kodak Co | Photographic washing accelerators |
| US2759824A (en) * | 1954-05-18 | 1956-08-21 | Ralph B Atkinson | Method of photographic processing and developer therefor |
| BE562088A (enrdf_load_stackoverflow) * | 1956-11-05 | |||
| NL247505A (enrdf_load_stackoverflow) * | 1957-10-25 | |||
| US3260598A (en) * | 1961-05-29 | 1966-07-12 | Eastman Kodak Co | Photographic element-developer system |
| US3189454A (en) * | 1961-10-16 | 1965-06-15 | Eastman Kodak Co | Method of photographic development and fixing |
| BE631556A (enrdf_load_stackoverflow) * | 1962-04-26 | |||
| US5399457A (en) * | 1993-10-15 | 1995-03-21 | Minnesota Mining And Manufacturing Company | Process for reducing sludge in diffusion transfer printing plates |
| EP0913330A1 (fr) | 1997-10-20 | 1999-05-06 | Cefma | Dispositif pour réaliser une découpe dans l'enveloppe d'un fardeau en défilement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE421930A (enrdf_load_stackoverflow) * | 1936-06-25 | |||
| US2407645A (en) * | 1943-06-21 | 1946-09-17 | Martin Dennis Company | Aliphatic polycarboxylic amino acids and process of making them |
| US2544649A (en) * | 1949-01-14 | 1951-03-13 | Frederick C Bersworth | Caustic alkali composition of matter and its use as a polyvalent metal precipitationinhibitor |
-
0
- FR FR1085004D patent/FR1085004A/fr not_active Expired
- CA CA528734A patent/CA528734A/en not_active Expired
-
1952
- 1952-02-12 US US271284A patent/US2656273A/en not_active Expired - Lifetime
-
1953
- 1953-02-12 GB GB3986/53A patent/GB725573A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467521A (en) * | 1965-05-03 | 1969-09-16 | Agfa Gevaert Ag | Developer compositions containing sequestering agents |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1085004A (enrdf_load_stackoverflow) | 1955-01-26 |
| US2656273A (en) | 1953-10-20 |
| CA528734A (en) | 1956-08-07 |
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