GB1306176A - - Google Patents
Info
- Publication number
- GB1306176A GB1306176A GB2760071A GB2760071A GB1306176A GB 1306176 A GB1306176 A GB 1306176A GB 2760071 A GB2760071 A GB 2760071A GB 2760071 A GB2760071 A GB 2760071A GB 1306176 A GB1306176 A GB 1306176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxy
- developing agent
- aminophenal
- butanone
- 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
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1306176 Photographic Developer MINNESOTA MINING & MFG CO 11 June 1971 [12 June 1970] 27600/71 Heading G2C A photographic developer for silver halide material comprises an oxidisable developing agent and an oxidation inhibitor of the general formula R<SP>1</SP> -CO-[CH 2 ] n -CHOH-R<SP>2</SP> in which R<SP>1</SP> is an alkyl group or the group - CH 2 OH, R<SP>2</SP> is a hydrogen or an aliphatic group, or R<SP>1</SP> and R<SP>2</SP> together represent the atoms necessary to complete a cycloaliphatic ring, and n is O or 1. Specified inhibitors are hydroxyacetone, dihydroxyacetone and its dimer, 3-hydroxy -2- butanone, 4-hydroxy-2- butanone and 2-hydroxy-cyclohexanone. The developing agent may be hydroquinone, 1-phenyl-3-pyrazolidone, pyrogallal, an aminophenal or a di-aminophenal or a derivative thereof or a mixture of two or more of these. A colour developing agent such as para-phenylene-diamine or a derivative thereof may be used. Examples of suitable developer compositions are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5139170 | 1970-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1306176A true GB1306176A (en) | 1973-02-07 |
Family
ID=11274966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2760071A Expired GB1306176A (en) | 1970-06-12 | 1971-06-11 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE768397A (en) |
DE (1) | DE2129123A1 (en) |
FR (1) | FR2096223A5 (en) |
GB (1) | GB1306176A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030920A (en) | 1976-04-12 | 1977-06-21 | Eastman Kodak Company | Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement |
US4833068A (en) * | 1986-07-21 | 1989-05-23 | Fuji Photo Film Co., Ltd. | Color photographic developing solution composition and method for processing a silver halide color photographic material |
GB2214322A (en) * | 1988-01-20 | 1989-08-31 | Agfa Gevaert Ag | A photographic colour developer |
US4920041A (en) * | 1986-08-07 | 1990-04-24 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material using a developer substantially free of benzyl alcohol and sulfite |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3418988A1 (en) * | 1984-05-22 | 1985-11-28 | Basf Ag, 6700 Ludwigshafen | (ALPHA) HYDROXYKETONE AS A SKIN PREVENTION AGENT |
-
1971
- 1971-06-11 GB GB2760071A patent/GB1306176A/en not_active Expired
- 1971-06-11 BE BE768397A patent/BE768397A/en unknown
- 1971-06-11 DE DE19712129123 patent/DE2129123A1/en active Pending
- 1971-06-11 FR FR7121223A patent/FR2096223A5/fr not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030920A (en) | 1976-04-12 | 1977-06-21 | Eastman Kodak Company | Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement |
US4833068A (en) * | 1986-07-21 | 1989-05-23 | Fuji Photo Film Co., Ltd. | Color photographic developing solution composition and method for processing a silver halide color photographic material |
US4920041A (en) * | 1986-08-07 | 1990-04-24 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material using a developer substantially free of benzyl alcohol and sulfite |
GB2214322A (en) * | 1988-01-20 | 1989-08-31 | Agfa Gevaert Ag | A photographic colour developer |
GB2214322B (en) * | 1988-01-20 | 1991-10-23 | Agfa Gevaert Ag | A photographic colour developer |
Also Published As
Publication number | Publication date |
---|---|
FR2096223A5 (en) | 1972-02-11 |
BE768397A (en) | 1971-12-13 |
DE2129123A1 (en) | 1972-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |