GB1042300A - Photographic layers for the silver dyestuff bleaching process - Google Patents

Photographic layers for the silver dyestuff bleaching process

Info

Publication number
GB1042300A
GB1042300A GB585465A GB585465A GB1042300A GB 1042300 A GB1042300 A GB 1042300A GB 585465 A GB585465 A GB 585465A GB 585465 A GB585465 A GB 585465A GB 1042300 A GB1042300 A GB 1042300A
Authority
GB
United Kingdom
Prior art keywords
hydroxynaphthalene
azo
formula
bleaching process
acid residues
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
GB585465A
Other languages
English (en)
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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
Priority claimed from CH240464A external-priority patent/CH431272A/de
Application filed by Ciba AG filed Critical Ciba AG
Publication of GB1042300A publication Critical patent/GB1042300A/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
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
    • G03C7/29—Azo dyes therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB585465A 1964-02-27 1965-02-10 Photographic layers for the silver dyestuff bleaching process Expired GB1042300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH240464A CH431272A (de) 1960-03-09 1964-02-27 Photographische Schicht für das Silberfarbbleichverfahren

Publications (1)

Publication Number Publication Date
GB1042300A true GB1042300A (en) 1966-09-14

Family

ID=4232989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB585465A Expired GB1042300A (en) 1964-02-27 1965-02-10 Photographic layers for the silver dyestuff bleaching process

Country Status (3)

Country Link
BE (1) BE660288A (forum.php)
FR (1) FR87423E (forum.php)
GB (1) GB1042300A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235957A (en) * 1979-01-25 1980-11-25 Eastman Kodak Company Thermal silver-dye bleach element and process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235957A (en) * 1979-01-25 1980-11-25 Eastman Kodak Company Thermal silver-dye bleach element and process

Also Published As

Publication number Publication date
BE660288A (forum.php) 1965-08-26
FR87423E (fr) 1966-08-05

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