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GB1085581A - Photographic colour processes - Google Patents

Photographic colour processes

Info

Publication number
GB1085581A
GB1085581A GB37835/64A GB3783564A GB1085581A GB 1085581 A GB1085581 A GB 1085581A GB 37835/64 A GB37835/64 A GB 37835/64A GB 3783564 A GB3783564 A GB 3783564A GB 1085581 A GB1085581 A GB 1085581A
Authority
GB
United Kingdom
Prior art keywords
photographic colour
colour processes
processes
salt
photographic
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
GB37835/64A
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
Publication of GB1085581A publication Critical patent/GB1085581A/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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/142—Dye mordant

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pyridine Compounds (AREA)

Abstract

Ethylene-1:2-bis(pyridinium) salts are obtained by heating ethylene dibromide with pyridine and adding a salt of the appropriate acid. An example is given for the preparation of the perchlorate salt.
GB37835/64A 1963-09-20 1964-09-16 Photographic colour processes Expired GB1085581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US310265A US3330655A (en) 1963-09-20 1963-09-20 Preparation of photographic direct positive color images

Publications (1)

Publication Number Publication Date
GB1085581A true GB1085581A (en) 1967-10-04

Family

ID=23201708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37835/64A Expired GB1085581A (en) 1963-09-20 1964-09-16 Photographic colour processes

Country Status (4)

Country Link
US (1) US3330655A (en)
BE (1) BE653289A (en)
DE (1) DE1269482B (en)
GB (1) GB1085581A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386149A (en) * 1978-02-28 1983-05-31 Ciba-Geigy Ag Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process
JPS55138742A (en) * 1979-04-17 1980-10-29 Fuji Photo Film Co Ltd Silver halide emulsion developing method
US4420556A (en) * 1980-09-11 1983-12-13 Eastman Kodak Company Photographic silver halide materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588982A (en) * 1950-10-26 1952-03-11 Eastman Kodak Co Direct positive photographs using hydrazine in the emulsion
GB782304A (en) * 1955-06-20 1957-09-04 Ilford Ltd Improvements in or relating to the stabilisation of photographic developers
NL245302A (en) * 1958-11-12
BE603747A (en) * 1960-05-13

Also Published As

Publication number Publication date
BE653289A (en) 1965-01-18
US3330655A (en) 1967-07-11
DE1269482B (en) 1968-05-30

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