GB995035A - Reversal processing of photographic colour materials and developer compositions for use therein - Google Patents

Reversal processing of photographic colour materials and developer compositions for use therein

Info

Publication number
GB995035A
GB995035A GB3824/62A GB382462A GB995035A GB 995035 A GB995035 A GB 995035A GB 3824/62 A GB3824/62 A GB 3824/62A GB 382462 A GB382462 A GB 382462A GB 995035 A GB995035 A GB 995035A
Authority
GB
United Kingdom
Prior art keywords
developers
developer
balancing
colour
amino
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
GB3824/62A
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 GB995035A publication Critical patent/GB995035A/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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/407—Development processes or agents therefor
    • G03C7/413—Developers
    • G03C7/4136—Developers p-Phenylenediamine or derivatives thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

995,035. Photographic developers. EASTMAN KODAK CO. Feb. 1, 1962 [Feb. 1, 1961], No. 3824/62. Heading G2C. Colour developers comprise an aqueous alkaline solution of an aromatic primary amino developer which contains a hydroxyl or a second amino group, a balancing developing agent of formula R-NH-R 1 wherein R is uralhyl which may be substituted and R 1 is p-hydroxyphenyl which may be substituted by alkyl group with 1 to 4 carbon atoms, and an amine compound containing a -NH 2 group attached to a-NHCO-, -CONH-, -NH-C(=NH)-,-OH,or -NH 2 group. These developers are used in reversal three-colour processes, the amino compound removing by reaction any aldehyde formed from the balancing developer. Alternatively, in a reversal three-colour process, the amine compound may be added to the developer to remove any aldehyde left after treating the emulsion in an aldehyde hardening bath. Specified amine compounds are hydroxylamine, semicarbazide, hydrazine, carbohydrazide, biuret, aminoguanidine, methylsemicarbazide and Girard's reagent. Preferred balancing developers are those of formula wherein R 2 is phenyl, hydroxy-, chloro-, amino-, sulpho-, or ethyl-phenyl or tolyl. The balancing developers act as antioxidants for the developer and as auxiliary developers but they also react with oxidized colour developers to form Schiff's bases which hydrolyse to aldehydes. Specifications 898,005 and 904,462 are referred to.
GB3824/62A 1961-02-01 1962-02-01 Reversal processing of photographic colour materials and developer compositions for use therein Expired GB995035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86288A US3141771A (en) 1961-02-01 1961-02-01 Aldehyde scavengers for photographic silver halide developers

Publications (1)

Publication Number Publication Date
GB995035A true GB995035A (en) 1965-06-10

Family

ID=22197575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3824/62A Expired GB995035A (en) 1961-02-01 1962-02-01 Reversal processing of photographic colour materials and developer compositions for use therein

Country Status (4)

Country Link
US (1) US3141771A (en)
BE (1) BE613239A (en)
DE (1) DE1422855A1 (en)
GB (1) GB995035A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631903A (en) * 1962-05-04
NL299723A (en) * 1962-10-25
US3418121A (en) * 1964-11-11 1968-12-24 Fuji Photo Film Co Ltd Photographic developer composition containing 2-(o-propionamido-beta-phenylethyl) - 1 - hydroxynaphthamide as a color former
US3489566A (en) * 1966-02-01 1970-01-13 Eastman Kodak Co Magneta color developer solutions
DE1772816A1 (en) * 1967-07-08 1970-10-22 Fuji Photo Film Co Ltd Halosilver photographic light sensitive material
GB1244696A (en) * 1968-06-20 1971-09-02 Fuji Photo Film Co Ltd Improvements in colour developer compositions
US3647449A (en) * 1970-06-08 1972-03-07 Eastman Kodak Co Neutralizing bath for use in photographic processing
US4170478A (en) * 1977-06-06 1979-10-09 Eastman Kodak Company Photographic color developer compositions
DE2744356A1 (en) * 1977-10-01 1979-04-05 Agfa Gevaert Ag PHOTOGRAPHIC REVERSAL WITHOUT A SECOND EXPOSURE
JPS5810738A (en) 1981-07-13 1983-01-21 Fuji Photo Film Co Ltd Silver halide color photosensitive material
JPS5879248A (en) * 1981-11-06 1983-05-13 Fuji Photo Film Co Ltd Color photographic sensitive silver halide material
DE3788600T2 (en) * 1986-07-22 1994-04-28 Fuji Photo Film Co Ltd Process for treating silver halide color photographic material.
EP0254294B1 (en) * 1986-07-23 1992-12-23 Fuji Photo Film Co., Ltd. Method of processing a silver halide color photographic material and a color developer
EP0285010A3 (en) * 1987-03-25 1989-11-08 Fuji Photo Film Co., Ltd. Method for forming a direct positive color image
AU615712B2 (en) * 1988-01-21 1991-10-10 Fuji Photo Film Co., Ltd. Process of processing silver halide color photographic material
EP0325278A3 (en) * 1988-01-21 1990-06-27 Fuji Photo Film Co., Ltd. Method for processing silver halide color photographic materials
JP2540057B2 (en) * 1988-01-21 1996-10-02 富士写真フイルム株式会社 Silver halide color-processing method of photographic light-sensitive material
CA1332029C (en) * 1988-01-21 1994-09-20 Kazuto Andoh Method for processing a silver halide color photographic material
JPH07117721B2 (en) * 1988-01-21 1995-12-18 富士写真フイルム株式会社 Processing method of silver halide color photographic light-sensitive material
US5147764A (en) * 1990-06-28 1992-09-15 Eastman Kodak Company Photographic element with 2-equivalent 5-pyrazolone and competitor for oxidized developing agent

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE439613A (en) * 1939-07-14
US2353690A (en) * 1942-11-11 1944-07-18 Du Pont Stabilization of organic substances
US2419975A (en) * 1943-08-26 1947-05-06 Eastman Kodak Co Increasing speed and contrast of photographic emulsions
BE530383A (en) * 1951-04-10
GB811185A (en) * 1956-10-03 1959-04-02 Ilford Ltd Improvements in or relating to colour photography
BE562088A (en) * 1956-11-05
US2983606A (en) * 1958-07-14 1961-05-09 Polaroid Corp Processes and products for forming photographic images in color

Also Published As

Publication number Publication date
BE613239A (en)
DE1422855A1 (en) 1968-12-12
US3141771A (en) 1964-07-21

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