GB1484479A - Adding spectral sensitizers to photographic light-sensitive emulsions - Google Patents
Adding spectral sensitizers to photographic light-sensitive emulsionsInfo
- Publication number
- GB1484479A GB1484479A GB4963074A GB4963074A GB1484479A GB 1484479 A GB1484479 A GB 1484479A GB 4963074 A GB4963074 A GB 4963074A GB 4963074 A GB4963074 A GB 4963074A GB 1484479 A GB1484479 A GB 1484479A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- emulsion
- nov
- light
- sensitive
- 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
- 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
- G03C1/08—Sensitivity-increasing substances
- G03C1/10—Organic substances
- G03C1/12—Methine and polymethine dyes
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1484479 Adding sensitizing dyes to photographic emulsions FUJI PHOTO FILM CO Ltd 15 Nov 1974 [15 Nov 1973] 49630/74 Heading G2C A spectrally sensitizing dye is dissolved in an acid which contains less than 10% by weight of water and is selected from methanesulphonic, ethanesulphonic, 3-propanesulphonic, trifluoromethanesulphonic, and isethionic acid; the dye solution is dispersed in an aqueous solution of a hydrophilic colloid and the dispersion added to a light-sensitive photographic emulsion. The dispersion may be neutralized prior to its addition to the emulsion using sodium or potassium hydroxide or carbonate, sodium bicarbonate, di- or tri-ethylamine or morpholine. The light-sensitive emulsion contains silver halide, titanium or zinc oxide or calcium sulphide. The dyes are cyanines, merocyanines, hemicyanines and styryl dyes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12875473A JPS5722091B2 (en) | 1973-11-15 | 1973-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1484479A true GB1484479A (en) | 1977-09-01 |
Family
ID=14992626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4963074A Expired GB1484479A (en) | 1973-11-15 | 1974-11-15 | Adding spectral sensitizers to photographic light-sensitive emulsions |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5722091B2 (en) |
DE (1) | DE2454300A1 (en) |
GB (1) | GB1484479A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124795A2 (en) | 1983-04-11 | 1984-11-14 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
US5403705A (en) * | 1992-10-13 | 1995-04-04 | Konica Corporation | Silver halide photographic emulsion and light-sensitive silver halide photographic material |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2877579B2 (en) * | 1991-08-26 | 1999-03-31 | コニカ株式会社 | Silver halide color photographic materials |
US5418124A (en) | 1992-03-19 | 1995-05-23 | Fuji Photo Film Co. Ltd. | Silver halide photographic emulsion and a photographic light-sensitive material |
ATE483182T1 (en) | 2001-04-17 | 2010-10-15 | Fujifilm Corp | PHOTOGRAPHIC SILVER HALIDE MATERIAL CONTAINING A METHINE DYE |
WO2005073804A1 (en) | 2004-01-30 | 2005-08-11 | Fuji Photo Film Co., Ltd. | Silver halide color photographic light-sensitive material and color image-forming method |
-
1973
- 1973-11-15 JP JP12875473A patent/JPS5722091B2/ja not_active Expired
-
1974
- 1974-11-15 DE DE19742454300 patent/DE2454300A1/en not_active Withdrawn
- 1974-11-15 GB GB4963074A patent/GB1484479A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124795A2 (en) | 1983-04-11 | 1984-11-14 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
US5403705A (en) * | 1992-10-13 | 1995-04-04 | Konica Corporation | Silver halide photographic emulsion and light-sensitive silver halide photographic material |
Also Published As
Publication number | Publication date |
---|---|
JPS5722091B2 (en) | 1982-05-11 |
JPS5080826A (en) | 1975-07-01 |
DE2454300A1 (en) | 1975-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |