ZA97531B - Chemically stable ascorbate-based photographic developer and imaging process. - Google Patents
Chemically stable ascorbate-based photographic developer and imaging process.Info
- Publication number
- ZA97531B ZA97531B ZA9700531A ZA97531A ZA97531B ZA 97531 B ZA97531 B ZA 97531B ZA 9700531 A ZA9700531 A ZA 9700531A ZA 97531 A ZA97531 A ZA 97531A ZA 97531 B ZA97531 B ZA 97531B
- Authority
- ZA
- South Africa
- Prior art keywords
- chemically stable
- imaging process
- photographic developer
- based photographic
- ascorbate
- Prior art date
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
-
- 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/061—Hydrazine compounds
-
- 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
- G03C5/30—Developers
-
- 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
- G03C5/30—Developers
- G03C2005/3007—Ascorbic acid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/589,918 US5589323A (en) | 1996-01-23 | 1996-01-23 | Chemically stable ascorbate-based photographic developer and imaging process |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA97531B true ZA97531B (en) | 1997-07-30 |
Family
ID=24360096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA9700531A ZA97531B (en) | 1996-01-23 | 1997-01-22 | Chemically stable ascorbate-based photographic developer and imaging process. |
Country Status (4)
Country | Link |
---|---|
US (2) | US5589323A (xx) |
EP (1) | EP0786697A1 (xx) |
CA (1) | CA2195600A1 (xx) |
ZA (1) | ZA97531B (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702875A (en) * | 1996-06-28 | 1997-12-30 | Eastman Kodak Company | Weakly alkaline ascorbic acid developing composition, processing kit and method using same |
US5981138A (en) * | 1996-09-04 | 1999-11-09 | Fuji Photo Film Co., Ltd. | Hydrazine compound and silver halide photographic light-sensitive material using the same |
US5939233A (en) * | 1997-04-17 | 1999-08-17 | Kodak Polychrome Graphics Llc | Nucleating agents for graphic arts films |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3022168A (en) * | 1958-06-28 | 1962-02-20 | Pharmacia Ab | Photographic developer |
FR1500987A (fr) * | 1966-08-30 | 1967-11-10 | Kodak Pathe | Nouveau révélateur photographique et nouveau produit photosensible le contenant |
US4025344A (en) * | 1972-08-31 | 1977-05-24 | E. I. Du Pont De Nemours And Company | Lithographic developer replenishment process |
US4975354A (en) * | 1988-10-11 | 1990-12-04 | Eastman Kodak Company | Photographic element comprising an ethyleneoxy-substituted amino compound and process adapted to provide high constrast development |
CA2035049C (en) * | 1990-01-31 | 1996-09-17 | Audenried W. Knapp | Non-toxic photographic developer composition |
US5278035A (en) * | 1990-01-31 | 1994-01-11 | Knapp Audenried W | Non-toxic photographic developer composition for processing x-ray films in automatic film processors |
JP2961850B2 (ja) * | 1990-09-19 | 1999-10-12 | 大日本インキ化学工業株式会社 | 超硬調ネガ画像の形成方法 |
WO1993011456A1 (en) * | 1991-12-02 | 1993-06-10 | E.I. Du Pont De Nemours And Company | Improved developer systems for hydrazine containing films |
US5384232A (en) * | 1991-12-02 | 1995-01-24 | E. I. Du Pont De Nemours And Company | Process for rapid access development of silver halide films using pyridinium as development accelerators |
US5236816A (en) * | 1992-04-10 | 1993-08-17 | Eastman Kodak Company | Photographic developing solution and use thereof in the high contrast development of nucleated photographic elements |
US5264323A (en) * | 1992-04-10 | 1993-11-23 | Eastman Kodak Company | Photographic developing solution and use thereof in the high contrast development of nucleated photographic elements |
JP2824881B2 (ja) * | 1992-04-13 | 1998-11-18 | 富士写真フイルム株式会社 | 黒白ハロゲン化銀写真感光材料の現像方法 |
EP0573700A1 (en) * | 1992-06-09 | 1993-12-15 | Agfa-Gevaert N.V. | Replenishment of a developer containing ascorbic acid and 3-pyrazolidone derivatives |
US5362621A (en) * | 1992-08-20 | 1994-11-08 | Dainippon Ink And Chemicals, Inc. | Direct positive silver halide photographic material and method for forming high contrast positive image using the same |
EP0588408B1 (en) * | 1992-09-15 | 1998-05-13 | Agfa-Gevaert N.V. | An ascorbic acid type developer with a particular composition |
GB9226488D0 (en) * | 1992-12-19 | 1993-02-17 | Ilford Ltd | Photographic developing solution |
WO1995000881A1 (en) * | 1993-06-18 | 1995-01-05 | Fuji Hunt Photographic Chemicals, Inc. | Non-hydroquinone photographic developer composition and processing method |
EP0632323B1 (en) * | 1993-07-02 | 1997-05-02 | Minnesota Mining And Manufacturing Company | Photographic silver halide developer compositions and process for forming photographic silver images |
DE69524304T2 (de) * | 1994-07-29 | 2002-07-25 | Dainippon Ink And Chemicals, Inc. | Verfahren zur Herstellung von Negativbildern mit ultrahohem Kontrast und photographisches Silberhalogenidmaterial und Entwickler dafür |
-
1996
- 1996-01-23 US US08/589,918 patent/US5589323A/en not_active Expired - Lifetime
-
1997
- 1997-01-21 CA CA002195600A patent/CA2195600A1/en not_active Abandoned
- 1997-01-22 ZA ZA9700531A patent/ZA97531B/xx unknown
- 1997-01-23 EP EP97101041A patent/EP0786697A1/en not_active Withdrawn
- 1997-11-17 US US08/972,071 patent/USRE36384E/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2195600A1 (en) | 1997-07-24 |
US5589323A (en) | 1996-12-31 |
EP0786697A1 (en) | 1997-07-30 |
USRE36384E (en) | 1999-11-09 |
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