AT257358B - Color bleaching catalysts for the silver color bleaching process - Google Patents

Color bleaching catalysts for the silver color bleaching process

Info

Publication number
AT257358B
AT257358B AT251865A AT251865A AT257358B AT 257358 B AT257358 B AT 257358B AT 251865 A AT251865 A AT 251865A AT 251865 A AT251865 A AT 251865A AT 257358 B AT257358 B AT 257358B
Authority
AT
Austria
Prior art keywords
color bleaching
catalysts
silver
bleaching process
silver color
Prior art date
Application number
AT251865A
Other languages
German (de)
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Application granted granted Critical
Publication of AT257358B publication Critical patent/AT257358B/en

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
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
AT251865A 1964-03-20 1965-03-19 Color bleaching catalysts for the silver color bleaching process AT257358B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH361864A CH438936A (en) 1964-03-20 1964-03-20 Use of pyrazines as color bleaching catalysts in the silver color bleaching process

Publications (1)

Publication Number Publication Date
AT257358B true AT257358B (en) 1967-10-10

Family

ID=4259842

Family Applications (1)

Application Number Title Priority Date Filing Date
AT251865A AT257358B (en) 1964-03-20 1965-03-19 Color bleaching catalysts for the silver color bleaching process

Country Status (8)

Country Link
US (1) US3394004A (en)
AT (1) AT257358B (en)
BE (1) BE661358A (en)
CH (1) CH438936A (en)
DE (1) DE1269483B (en)
ES (1) ES310746A1 (en)
GB (1) GB1051970A (en)
NL (1) NL6503517A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH543108A (en) * 1970-09-04 1973-10-15 Ciba Geigy Ag Use of quinoxalines in photographic processes
CH576158A5 (en) * 1972-02-28 1976-05-31 Ciba Geigy Ag
NL7810745A (en) * 1977-10-28 1979-05-02 Ciba Geigy PROCESS FOR THE MANUFACTURE OF PHOTOGRAPHIC IMAGES.
US4304846A (en) * 1979-02-09 1981-12-08 Ciba-Geigy Ag Method for processing silver dye-bleach materials
ES2118079T3 (en) * 1991-06-11 1998-09-16 Jahleel Corp BLEACHING BATH AND ITS USE IN A SILVER WHITENING PROCESS.
US5550009A (en) * 1995-04-17 1996-08-27 Eastman Kodak Company Stabilized peroxide bleaching solutions and their use for processing of photographic elements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE425206A (en) * 1936-12-14
BE579274A (en) * 1958-06-03

Also Published As

Publication number Publication date
US3394004A (en) 1968-07-23
NL6503517A (en) 1965-09-21
ES310746A1 (en) 1966-01-01
BE661358A (en) 1965-09-20
GB1051970A (en)
CH438936A (en) 1967-06-30
DE1269483B (en) 1968-05-30

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