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GB9005130D0 - Silver removal from photographic products - Google Patents

Silver removal from photographic products

Info

Publication number
GB9005130D0
GB9005130D0 GB909005130A GB9005130A GB9005130D0 GB 9005130 D0 GB9005130 D0 GB 9005130D0 GB 909005130 A GB909005130 A GB 909005130A GB 9005130 A GB9005130 A GB 9005130A GB 9005130 D0 GB9005130 D0 GB 9005130D0
Authority
GB
United Kingdom
Prior art keywords
fixing agent
silver removal
fixing
photographic products
accelerator
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.)
Pending
Application number
GB909005130A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Priority to GB909005130A priority Critical patent/GB9005130D0/en
Publication of GB9005130D0 publication Critical patent/GB9005130D0/en
Priority to JP91504601A priority patent/JPH05506727A/en
Priority to PCT/EP1991/000406 priority patent/WO1991014205A1/en
Priority to DE69102696T priority patent/DE69102696T2/en
Priority to AT91904935T priority patent/ATE108032T1/en
Priority to EP91904935A priority patent/EP0518905B1/en
Pending 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
    • G03C7/44—Regeneration; Replenishers
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor
    • G03C5/3952—Chemical, mechanical or thermal methods, e.g. oxidation, precipitation, centrifugation
    • 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
    • G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
    • G03C7/421—Additives other than bleaching or fixing agents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Knives (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

The invention resides in treating an image-wise exposed and colour developed photographic element with a bleaching agent and a fixing agent. The fixing agent comprises an aliphatic thiol as accelerator. The accelerator present in the fixing agent both stabilizes the fixing agent so that it can be used commercially and prevents staining resultant upon the degeneration of the thiol in the bleach fix bath. The invention also provides a means for efficient silver removal from the fixing bath thereby obviating a separate silver removal stage.
GB909005130A 1990-03-07 1990-03-07 Silver removal from photographic products Pending GB9005130D0 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB909005130A GB9005130D0 (en) 1990-03-07 1990-03-07 Silver removal from photographic products
JP91504601A JPH05506727A (en) 1990-03-07 1991-03-05 Silver removal from photographic products
PCT/EP1991/000406 WO1991014205A1 (en) 1990-03-07 1991-03-05 Silver removal from photographic products
DE69102696T DE69102696T2 (en) 1990-03-07 1991-03-05 SILVER REMOVAL FROM PHOTOGRAPHIC PRODUCTS.
AT91904935T ATE108032T1 (en) 1990-03-07 1991-03-05 SILVER REMOVAL FROM PHOTOGRAPHIC PRODUCTS.
EP91904935A EP0518905B1 (en) 1990-03-07 1991-03-05 Silver removal from photographic products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909005130A GB9005130D0 (en) 1990-03-07 1990-03-07 Silver removal from photographic products

Publications (1)

Publication Number Publication Date
GB9005130D0 true GB9005130D0 (en) 1990-05-02

Family

ID=10672186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB909005130A Pending GB9005130D0 (en) 1990-03-07 1990-03-07 Silver removal from photographic products

Country Status (6)

Country Link
EP (1) EP0518905B1 (en)
JP (1) JPH05506727A (en)
AT (1) ATE108032T1 (en)
DE (1) DE69102696T2 (en)
GB (1) GB9005130D0 (en)
WO (1) WO1991014205A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290812B (en) * 1965-06-11 1969-03-13 Agfa Gevaert Ag Process for bleach-fixing silver photographic images
BE698038A (en) * 1966-05-06 1967-10-16
GB1411985A (en) * 1972-10-18 1975-10-29 Ilford Ltd Silver recovery process
JPS5946386B2 (en) * 1979-05-09 1984-11-12 富士写真フイルム株式会社 Bleaching composition for photographic processing
US4707434A (en) * 1984-08-20 1987-11-17 Konishiroku Photo Industry Co., Ltd. Color image forming method comprising processing with a bleach-fixing solution
KR870001490A (en) * 1985-07-18 1987-03-14 이떼 메구미 Silver halide color photosensitive material processing method

Also Published As

Publication number Publication date
ATE108032T1 (en) 1994-07-15
WO1991014205A1 (en) 1991-09-19
DE69102696T2 (en) 1994-10-20
EP0518905A1 (en) 1992-12-23
EP0518905B1 (en) 1994-06-29
JPH05506727A (en) 1993-09-30
DE69102696D1 (en) 1994-08-04

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