GB1360939A - Silver dye bleach process - Google Patents
Silver dye bleach processInfo
- Publication number
- GB1360939A GB1360939A GB5290672A GB5290672A GB1360939A GB 1360939 A GB1360939 A GB 1360939A GB 5290672 A GB5290672 A GB 5290672A GB 5290672 A GB5290672 A GB 5290672A GB 1360939 A GB1360939 A GB 1360939A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compound
- acid
- amino
- composition
- dye bleach
- 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
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Detergent Compositions (AREA)
Abstract
1360939 Photographic silver dye-bleaching composition CIBA-GEIGY A G 16 Nov 1972 [29 Nov 1971] 52906/72 Heading G2C A dye bleach composition for the silver dyebleach process comprises an acid, a watersoluble iodide and at least one mercapto compound of the formula:- R 1 - SH where R 1 is an optionally substituted 2-6C aliphatic radical or optionally substituted phenyl which may be substituted by primary amino, 1-4C monoalkylamino, di (1-4C alkyl) amino, OH or COOH or a salt thereof the solubility of the compound being at least 5 x 10<SP>-4</SP> mole per litre of the composition and the compound having a vapour pressure at -20‹ to +100‹C which is at most equal to that of water at the same temperature. The compound may be 2-amino-3- mercapto-propionic acid, 2-dimethylamino-1- mercaptoethane, 2-diethylamino-1-mercaptoethane, 1, 2-dihydroxy-3-mercaptopropane, 1-amino-2-mercaptobenzene, mercaptoacetic acid, mercaptopropionic acid or mercaptosuccinic acid. The composition may contain a dye bleach catalyst. These compositions are stable and do not discolour.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1733171A CH570640A5 (en) | 1971-11-29 | 1971-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1360939A true GB1360939A (en) | 1974-07-24 |
Family
ID=4424580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5290672A Expired GB1360939A (en) | 1971-11-29 | 1972-11-16 | Silver dye bleach process |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5422088B2 (en) |
| AT (1) | AT319746B (en) |
| AU (1) | AU463691B2 (en) |
| BE (1) | BE791978A (en) |
| CA (1) | CA1014402A (en) |
| CH (1) | CH570640A5 (en) |
| DE (1) | DE2258076C2 (en) |
| FR (1) | FR2169779B1 (en) |
| GB (1) | GB1360939A (en) |
| IT (1) | IT973748B (en) |
| NL (1) | NL7216199A (en) |
| ZA (1) | ZA728077B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH579292A5 (en) * | 1973-05-18 | 1976-08-31 | Ciba Geigy Ag | |
| CH584914A5 (en) * | 1973-10-12 | 1977-02-15 | Ciba Geigy Ag | |
| CH594912A5 (en) * | 1974-07-10 | 1978-01-31 | Ciba Geigy Ag | |
| CH627006A5 (en) * | 1977-03-23 | 1981-12-15 | Ciba Geigy Ag | |
| AT368816B (en) * | 1980-04-04 | 1982-11-10 | Grabig Tetenal Photowerk | SILVER COLORING FOR A PHOTOGRAPHIC SILVER COLORING METHOD |
| CH657710A5 (en) * | 1983-07-20 | 1986-09-15 | Ciba Geigy Ag | METHOD FOR PROCESSING PHOTOGRAPHIC SILVER COLOR MATERIALS. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE475914A (en) * | 1946-12-14 | |||
| CH508899A (en) * | 1968-06-25 | 1971-06-15 | Ciba Geigy Ag | Color bleaching preparation for the photographic silver color bleaching process |
| DE2044994A1 (en) * | 1970-09-11 | 1972-03-16 | Agfa-Gevaert Ag, 5090 Leverkusen | Dye bleach bath for the silver dye bleaching process |
-
0
- BE BE791978D patent/BE791978A/en unknown
-
1971
- 1971-11-29 CH CH1733171A patent/CH570640A5/xx not_active IP Right Cessation
-
1972
- 1972-10-23 FR FR7237498A patent/FR2169779B1/fr not_active Expired
- 1972-11-02 AU AU48464/72A patent/AU463691B2/en not_active Expired
- 1972-11-14 ZA ZA728077A patent/ZA728077B/en unknown
- 1972-11-15 CA CA156,470A patent/CA1014402A/en not_active Expired
- 1972-11-16 GB GB5290672A patent/GB1360939A/en not_active Expired
- 1972-11-27 IT IT54305/72A patent/IT973748B/en active
- 1972-11-27 DE DE2258076A patent/DE2258076C2/en not_active Expired
- 1972-11-28 AT AT1012772A patent/AT319746B/en not_active IP Right Cessation
- 1972-11-29 NL NL7216199A patent/NL7216199A/xx unknown
- 1972-11-29 JP JP11906172A patent/JPS5422088B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ZA728077B (en) | 1973-07-25 |
| AU463691B2 (en) | 1975-07-31 |
| AU4846472A (en) | 1974-05-02 |
| FR2169779B1 (en) | 1976-10-29 |
| NL7216199A (en) | 1973-06-01 |
| BE791978A (en) | 1973-05-28 |
| IT973748B (en) | 1974-06-10 |
| JPS5422088B2 (en) | 1979-08-04 |
| DE2258076C2 (en) | 1982-06-24 |
| CA1014402A (en) | 1977-07-26 |
| DE2258076A1 (en) | 1973-05-30 |
| CH570640A5 (en) | 1975-12-15 |
| AT319746B (en) | 1975-01-10 |
| JPS4863724A (en) | 1973-09-04 |
| FR2169779A1 (en) | 1973-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |