GB537829A - Process of treating gelatine - Google Patents
Process of treating gelatineInfo
- Publication number
- GB537829A GB537829A GB28640A GB28640A GB537829A GB 537829 A GB537829 A GB 537829A GB 28640 A GB28640 A GB 28640A GB 28640 A GB28640 A GB 28640A GB 537829 A GB537829 A GB 537829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatine
- treating
- sulphates
- calcium
- salt
- 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
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/047—Proteins, e.g. gelatine derivatives; Hydrolysis or extraction products of proteins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09H—PREPARATION OF GLUE OR GELATINE
- C09H3/00—Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
- C09H3/02—Purification of solutions of gelatine
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Colloid Chemistry (AREA)
Abstract
537,829. Gelatine. KODAK, Ltd. (Eastman Kodak Co.). Jan. 5, 1940, No. 286. [Class 121] Gelatine is freed from calcium by treating it with a neutral aqueous solution of an ammonium or alkali metal salt of an acid whose anion forms a calcium salt soluble in water above 0.1 grams per 100 grams water. Sulphates, formates, acetates, lactates, chlorates, chlorides, nitrates, metaborates. hypophosphites and thiosulphates are suitable. When the gelatine is to be used for photographic emulsions and particularly if sulphates are made use of it is unnecessary to wash the neutral salt from the gelatine.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28640A GB537829A (en) | 1940-01-05 | 1940-01-05 | Process of treating gelatine |
FR883932D FR883932A (en) | 1940-01-05 | 1942-07-06 | Gelatin processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28640A GB537829A (en) | 1940-01-05 | 1940-01-05 | Process of treating gelatine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB537829A true GB537829A (en) | 1941-07-08 |
Family
ID=9701687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28640A Expired GB537829A (en) | 1940-01-05 | 1940-01-05 | Process of treating gelatine |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR883932A (en) |
GB (1) | GB537829A (en) |
-
1940
- 1940-01-05 GB GB28640A patent/GB537829A/en not_active Expired
-
1942
- 1942-07-06 FR FR883932D patent/FR883932A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR883932A (en) | 1943-07-26 |
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