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GB995364A - Improvements relating to colour photography - Google Patents

Improvements relating to colour photography

Info

Publication number
GB995364A
GB995364A GB20101/62A GB2010162A GB995364A GB 995364 A GB995364 A GB 995364A GB 20101/62 A GB20101/62 A GB 20101/62A GB 2010162 A GB2010162 A GB 2010162A GB 995364 A GB995364 A GB 995364A
Authority
GB
United Kingdom
Prior art keywords
colour
layer
coupler
binder
specifications
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
GB20101/62A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB995364A publication Critical patent/GB995364A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/327—Macromolecular coupling substances
    • G03C7/3275—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

995,364. Photographic layers. E. I. DU PONT DE NEMOURS & CO. May 24,1962 [May 29,1961], No. 20101/62. Heading G2C. A multi-layer photographic element comprises a support bearing a plurality of silver halide emulsion layers of integral emulsion thickness (defined as the distance from the outermost sensitive layer to one third into the innermost sensitive layer) of not more than 12. 5 microns and each layer containing gelatin binder and a vinyl addition polymeric colour coupler containing water solubilizing animic groups such that the effective colour coupling equivalent weight (defined as the equivalent weight of the coupler divided by the fraction of the colour coupler in the total binder) of less than 1750. Specified colour couplers are those of Specifications 967,503, 967,504 and 995,363 and the binder may also contain another polymer (e.g. copolymers of ethylene and propylene). The developer generally contains between 20 and 60 gms. fo anhydrous sodium sulphite to reduce inter-layer colour contamination. In the examples, the ratio of gelatin to colour coupler is 2 to 1 or less. Specifications 627,353, 955,197 also are referred to.
GB20101/62A 1961-05-29 1962-05-24 Improvements relating to colour photography Expired GB995364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US113100A US3211552A (en) 1961-05-29 1961-05-29 Multilayer photographic element for color photography

Publications (1)

Publication Number Publication Date
GB995364A true GB995364A (en) 1965-06-16

Family

ID=22347582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20101/62A Expired GB995364A (en) 1961-05-29 1962-05-24 Improvements relating to colour photography

Country Status (5)

Country Link
US (1) US3211552A (en)
DE (1) DE1154717B (en)
ES (1) ES277758A1 (en)
GB (1) GB995364A (en)
NL (1) NL278981A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL291196A (en) * 1963-04-05
US3342592A (en) * 1963-06-14 1967-09-19 Du Pont Photographic color films and processes
US3424583A (en) * 1963-08-14 1969-01-28 Du Pont Photographic color reversal films
US3361565A (en) * 1964-01-21 1968-01-02 Du Pont Silver halide photographic element containing a polyanionic color former and a gelatin antiabrasion layer
CH485782A (en) * 1964-06-23 1970-02-15 Gevaert Photo Prod Nv Emulsion polymerization process
US3370952A (en) * 1964-09-23 1968-02-27 Du Pont Color formers
JPS58211756A (en) * 1982-06-04 1983-12-09 Fuji Photo Film Co Ltd Silver halide color photosensitive material
JP2530164B2 (en) * 1987-02-05 1996-09-04 コニカ株式会社 Silver halide color photographic light-sensitive material with improved sharpness and graininess
CN115745848A (en) * 2022-12-07 2023-03-07 上海优合生物科技有限公司 Processing and synthesizing process of aminoguanidine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380033A (en) * 1938-10-05 1945-07-10 Du Pont Photographic elements containing polyvinyl acetal color formers
US2463838A (en) * 1943-02-18 1949-03-08 Du Pont Polymeric color couplers
US2423460A (en) * 1944-03-31 1947-07-08 Du Pont Photographic elements containing polyamide dye intermediate layers
US2489655A (en) * 1948-04-05 1949-11-29 Du Pont Polymeric color formers
US2828204A (en) * 1953-06-23 1958-03-25 Du Pont Polyvinyl acetal silver halide emulsion containing polyvinyl acetal color formers
US3070442A (en) * 1958-07-18 1962-12-25 Du Pont Process for producing colored polymeric relief images and elements therefor
DE1248946B (en) * 1959-01-26
BE588780A (en) * 1959-03-17

Also Published As

Publication number Publication date
ES277758A1 (en) 1963-01-16
DE1154717B (en) 1963-09-19
NL278981A (en)
US3211552A (en) 1965-10-12

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