GB482633A - Improvements in or relating to photographic light sensitive elements - Google Patents

Improvements in or relating to photographic light sensitive elements

Info

Publication number
GB482633A
GB482633A GB4494/37A GB449437A GB482633A GB 482633 A GB482633 A GB 482633A GB 4494/37 A GB4494/37 A GB 4494/37A GB 449437 A GB449437 A GB 449437A GB 482633 A GB482633 A GB 482633A
Authority
GB
United Kingdom
Prior art keywords
emulsion
support
layer
layers
buffered
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
GB4494/37A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB482633A publication Critical patent/GB482633A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • 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
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/26—Silver halide emulsions for subtractive colour processes

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Colloid Chemistry (AREA)

Abstract

482,633. Photographic sensitive materials. KODAK, Ltd. Feb. 15, 1937, No. 4494. Convention date, Feb. 15, 1936. Drawings to Specification. [Class 98 (ii)] Alteration in acidity or hydrogen ion concentration of photographic emulsion layers due to material leaching from a contiguous or adjacent layer into the emulsion is prevented by the provision between the layer and the emulsion of a layer of inert hydrophilic colloid buffered at substantially the same hydrogen ion concentration as the emulsion by the addition thereto of an inert soluble weak acid or base with or without a salt thereof. The buffered layer may be placed between the emulsion and a cellulose nitrate support ; between the emulsion and a gelatine substratum particularly when a cellulose acetate or ester support is used ; on the back of the support, a substratum being provided between the emulsion and the support ; or may comprise the adhesive layer in a stripping film. A stripping film comprises a temporary paper support having a gelatine layer on one side and a baryta coating on the other, on which baryta coating is the buffered adhesive layer, the permanent cellulose nitrate support, and the emulsion. The adhesive layer may consist of glue or glue and dextrin, and may contain glycerine. A layer of dextrin may be coated directly on the paper and the buffered adhesive layer of glue or glue and dextrin applied thereto. A gelatine layer may be applied between the permanent support and the emulsion or between the support and the adhesive layer. In a film having emulsion layers on both sides, the support carries buffered gelatine layers, and if desired additional substrata, and finally emulsion layers on both sides. Abrasion preventing or anti-static layers may be coated over the emulsion. Buffered backing layers may contain dye to enable them to be used as anti-halation layers. The substrata may be of casein, agar-agar, cellulose derivatives or resins.
GB4494/37A 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements Expired GB482633A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64103A US2139767A (en) 1936-02-15 1936-02-15 Buffered photographic film
US84317A US2184023A (en) 1936-02-15 1936-06-09 Buffered photographic emulsion

Publications (1)

Publication Number Publication Date
GB482633A true GB482633A (en) 1938-04-01

Family

ID=21953584

Family Applications (3)

Application Number Title Priority Date Filing Date
GB4496/37A Expired GB492162A (en) 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements
GB4494/37A Expired GB482633A (en) 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements
GB21733/38A Expired GB492257A (en) 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4496/37A Expired GB492162A (en) 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB21733/38A Expired GB492257A (en) 1936-02-15 1937-02-15 Improvements in or relating to photographic light sensitive elements

Country Status (3)

Country Link
US (2) US2139767A (en)
FR (1) FR825975A (en)
GB (3) GB492162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857273A (en) * 1953-07-31 1958-10-21 Gen Aniline & Film Corp Photographic film having enhanced herschel effect susceptibility and the process using the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698245A (en) * 1946-04-13 1954-12-28 Polaroid Corp Photographic product and process for making a positive transfer image
US2448534A (en) * 1946-07-06 1948-09-07 Eastman Kodak Co Sensitized photographic cellulose ester silver halide emulsion
US2635048A (en) * 1948-07-06 1953-04-14 Polaroid Corp Photographic transfer product and process
US3220841A (en) * 1962-01-12 1965-11-30 Eastman Kodak Co Photographic film
BE628957A (en) * 1962-02-28
JPS6341853A (en) * 1986-08-07 1988-02-23 Fuji Photo Film Co Ltd Silver halide color photographic sensitive material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857273A (en) * 1953-07-31 1958-10-21 Gen Aniline & Film Corp Photographic film having enhanced herschel effect susceptibility and the process using the same

Also Published As

Publication number Publication date
GB492162A (en) 1938-09-15
US2139767A (en) 1938-12-13
US2184023A (en) 1939-12-19
GB492257A (en) 1938-09-15
FR825975A (en) 1938-03-18

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