GB537829A - Process of treating gelatine - Google Patents

Process of treating gelatine

Info

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
Application number
GB28640A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB28640A priority Critical patent/GB537829A/en
Publication of GB537829A publication Critical patent/GB537829A/en
Priority to FR883932D priority patent/FR883932A/en
Expired legal-status Critical Current

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.
GB28640A 1940-01-05 1940-01-05 Process of treating gelatine Expired GB537829A (en)

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)

Also Published As

Publication number Publication date
FR883932A (en) 1943-07-26

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