GB811185A - Improvements in or relating to colour photography - Google Patents

Improvements in or relating to colour photography

Info

Publication number
GB811185A
GB811185A GB3015656A GB3015656A GB811185A GB 811185 A GB811185 A GB 811185A GB 3015656 A GB3015656 A GB 3015656A GB 3015656 A GB3015656 A GB 3015656A GB 811185 A GB811185 A GB 811185A
Authority
GB
United Kingdom
Prior art keywords
colour
pyrazolidone
developer
amino
developing agent
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
GB3015656A
Inventor
Leslie Frederick Alfred Mason
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Priority to GB3015656A priority Critical patent/GB811185A/en
Publication of GB811185A publication Critical patent/GB811185A/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
    • G03C7/407Development processes or agents therefor
    • G03C7/413Developers
    • G03C7/4136Developers p-Phenylenediamine or derivatives thereof

Landscapes

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

Abstract

811,185. Photographic colour developmeat. ILFORD Ltd. July 29, 1957 [Oct. 3, 1956], No. 30156/56. Class 98(2) An exposed silver halide emulsion layer, especially one in a multilayer colour material comprising also one or more layer containing an unexposed and non- developable silver halides, is colour developed in an alkaline solution comprising an aromatic primary amino developing agent, a colour coupler, and a 3 - pyrazolidone developing agent. Hydroxylamine also may be present in the developer as described in Specification 805,174. The 3 - pyrazolidone may be one of those described in Specifications 542,502 and 757,271, and the primary amino developer may be N, N - diethyl p - phenylene diamine or 2 - amino - 5 - diethylamino toluene. Examples are given of developer compositions comprising 2 - amino - 5 - diethylamino toluene, 1 - phenyl - 3 - pyrazolidone hydroxylamine hydrochloride, sodium carbonate or sodium phosphate as alkali (with sodium hexametaphosphate when sodium carbonate is used) and, as colour coupler; 1 - hydroxy - 2 - naphthoyl - cyclohexamide, furoyl - acet - o - toluidine or 1 - p - nitrophenyl - 3 - methyl - 5 - pyrazolone. Specification 500,613 also is referred to.
GB3015656A 1956-10-03 1956-10-03 Improvements in or relating to colour photography Expired GB811185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3015656A GB811185A (en) 1956-10-03 1956-10-03 Improvements in or relating to colour photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3015656A GB811185A (en) 1956-10-03 1956-10-03 Improvements in or relating to colour photography

Publications (1)

Publication Number Publication Date
GB811185A true GB811185A (en) 1959-04-02

Family

ID=10303195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3015656A Expired GB811185A (en) 1956-10-03 1956-10-03 Improvements in or relating to colour photography

Country Status (1)

Country Link
GB (1) GB811185A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141771A (en) * 1961-02-01 1964-07-21 Eastman Kodak Co Aldehyde scavengers for photographic silver halide developers
US3300305A (en) * 1962-10-25 1967-01-24 Eastman Kodak Co Color developers containing competing developing agents
US3941599A (en) * 1972-11-15 1976-03-02 Minnesota Mining And Manufacturing Company Method for obtaining a color contrast photographic image, photographic element and development composition suitable for the realization of said method
JPS62178256A (en) * 1986-01-31 1987-08-05 Konishiroku Photo Ind Co Ltd Dye image forming method
US4882264A (en) * 1984-01-20 1989-11-21 Olin Hunt Specialty Products Inc. Color developer composition
US5491050A (en) * 1993-03-22 1996-02-13 Eastman Kodak Company Method of processing originating photographic elements containing tabular silver chloride grains bounded by (100) faces
US6284446B1 (en) 1999-06-16 2001-09-04 Fuji Photo Film Co., Ltd. Silver halide color photographic material and development processing method of the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141771A (en) * 1961-02-01 1964-07-21 Eastman Kodak Co Aldehyde scavengers for photographic silver halide developers
US3300305A (en) * 1962-10-25 1967-01-24 Eastman Kodak Co Color developers containing competing developing agents
US3941599A (en) * 1972-11-15 1976-03-02 Minnesota Mining And Manufacturing Company Method for obtaining a color contrast photographic image, photographic element and development composition suitable for the realization of said method
US4882264A (en) * 1984-01-20 1989-11-21 Olin Hunt Specialty Products Inc. Color developer composition
JPS62178256A (en) * 1986-01-31 1987-08-05 Konishiroku Photo Ind Co Ltd Dye image forming method
US5491050A (en) * 1993-03-22 1996-02-13 Eastman Kodak Company Method of processing originating photographic elements containing tabular silver chloride grains bounded by (100) faces
US6284446B1 (en) 1999-06-16 2001-09-04 Fuji Photo Film Co., Ltd. Silver halide color photographic material and development processing method of the same
US6479229B2 (en) * 1999-06-16 2002-11-12 Fuji Photo Film Co. Ltd. Silver halide color photographic material and development processing method of the same

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