GB1271025A - Photographic hardening baths - Google Patents

Photographic hardening baths

Info

Publication number
GB1271025A
GB1271025A GB33565/69A GB3356569A GB1271025A GB 1271025 A GB1271025 A GB 1271025A GB 33565/69 A GB33565/69 A GB 33565/69A GB 3356569 A GB3356569 A GB 3356569A GB 1271025 A GB1271025 A GB 1271025A
Authority
GB
United Kingdom
Prior art keywords
hardening
sulphate
bath
zirconium
aluminium
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
GB33565/69A
Inventor
Fred Richard Holly Jr
Norville Bruce Williams
Gareth Neal Wall
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 GB1271025A publication Critical patent/GB1271025A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
    • G03D3/132—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed by roller assembly
    • 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
    • G03C7/3046—Processing baths not provided for elsewhere, e.g. final or intermediate washings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D11/00—Reversal processing apparatus

Landscapes

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

Abstract

1,271,025. Photographic hardening baths. EASTMAN KODAK CO. July 3, 1969 [July 5, 1968], No. 33565/69. Heading G2C. A method of processing a photographic colour material comprises pre-hardening the material before any development step with an aldehyde hardening bath and after at least one development step further hardening the material with a bath containing an acid solution of a zirconium salt hardening agent e.g. zirconyl sulphate, zirconium sulphate, zirconium nitrate, zirconium ammonium sulphate or zirconium sodium sulphate. Aluminium salts may be used with the zirconium salt, especially when the emulsion primarily contain gelatine, e.g. aluminium chloride sulphate or nitrate or potassium aluminium sulphate. The bath containing the zirconium salt preferably has a pH of 3 to 6 and may be a thiosulphate stopfixing or fixing bath. The photographic colour material may be treated with an aldehyde neutralizing bath after pre-hardening and before development. The hardening bath may be in package form comprising a first package containing zirconyl sulphate and aluminium sulphate and a second package containing thiosulphate which, when mixed with the appropriate quantity of water and an acidifying component form the hardening bath.
GB33565/69A 1968-07-05 1969-07-03 Photographic hardening baths Expired GB1271025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74257468A 1968-07-05 1968-07-05

Publications (1)

Publication Number Publication Date
GB1271025A true GB1271025A (en) 1972-04-19

Family

ID=24985373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33565/69A Expired GB1271025A (en) 1968-07-05 1969-07-03 Photographic hardening baths

Country Status (5)

Country Link
US (1) US3582347A (en)
BE (1) BE735545A (en)
BR (1) BR6910463D0 (en)
FR (1) FR2012340A1 (en)
GB (1) GB1271025A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983441A (en) * 1972-12-13 1974-08-10
US4194911A (en) * 1973-01-22 1980-03-25 Minnesota Mining And Manufacturing Company Inhibitor removing bath for direct positive color photographic development
JPS50104648A (en) * 1974-01-22 1975-08-18
US4436798A (en) * 1981-08-13 1984-03-13 Ciba-Geigy Ag Method of treating a dye image
US4535041A (en) * 1984-08-20 1985-08-13 Polaroid Corporation Stabilization of holograms
EP0196091B1 (en) * 1985-03-29 1992-10-28 Konica Corporation Method of processing light-sensitive silver halide color photographic material
DE3942394C2 (en) * 1989-12-21 1998-05-28 Agfa Gevaert Ag Device for developing photographic substrates

Also Published As

Publication number Publication date
BR6910463D0 (en) 1973-01-11
DE1926877A1 (en) 1970-02-12
FR2012340A1 (en) 1970-03-20
US3582347A (en) 1971-06-01
BE735545A (en) 1969-12-16

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