GB549587A - Photographic processing baths - Google Patents

Photographic processing baths

Info

Publication number
GB549587A
GB549587A GB909841A GB909841A GB549587A GB 549587 A GB549587 A GB 549587A GB 909841 A GB909841 A GB 909841A GB 909841 A GB909841 A GB 909841A GB 549587 A GB549587 A GB 549587A
Authority
GB
United Kingdom
Prior art keywords
acid
modified
photographic processing
sodium acetate
acetic acid
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
GB909841A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB909841A priority Critical patent/GB549587A/en
Publication of GB549587A publication Critical patent/GB549587A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/42Bleach-fixing or agents therefor ; Desilvering processes
    • G03C7/421Additives other than bleaching or fixing agents

Abstract

549,587. Photographic silver solvent baths. TULL, A. G. July 18, 1941, No. 9098. [Class 98 (ii)] A photographic silver solvent bath contains a soluble ferricyanide and a silver salt solvent acidified by a buffered non-reducing; acid. Modified Farmer's Reducer contains sodium thiosulphate, potassium ferricyanide, acetic acid, and sodium acetate. Modified Haddon's Reducer contains ammonium thiocyanate, potassium ferricyanide, acetic acid and sodium acetate. The acid may also rbe boric acid. Specification 539,509 is referred to.
GB909841A 1941-07-18 1941-07-18 Photographic processing baths Expired GB549587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB909841A GB549587A (en) 1941-07-18 1941-07-18 Photographic processing baths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909841A GB549587A (en) 1941-07-18 1941-07-18 Photographic processing baths

Publications (1)

Publication Number Publication Date
GB549587A true GB549587A (en) 1942-11-27

Family

ID=9865300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB909841A Expired GB549587A (en) 1941-07-18 1941-07-18 Photographic processing baths

Country Status (1)

Country Link
GB (1) GB549587A (en)

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