US3174862A - Process for improving the color reproduction in color photographic material - Google Patents

Process for improving the color reproduction in color photographic material Download PDF

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Publication number
US3174862A
US3174862A US54361A US5436160A US3174862A US 3174862 A US3174862 A US 3174862A US 54361 A US54361 A US 54361A US 5436160 A US5436160 A US 5436160A US 3174862 A US3174862 A US 3174862A
Authority
US
United States
Prior art keywords
color
naphthol
developer
coupler
silver halide
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 - Lifetime
Application number
US54361A
Other languages
English (en)
Inventor
Puschel Walter
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Application granted granted Critical
Publication of US3174862A publication Critical patent/US3174862A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03C7/32—Colour coupling substances
    • G03C7/3225—Combination of couplers of different kinds, e.g. yellow and magenta couplers in a same layer or in different layers of the photographic material
    • 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
    • G03C7/32—Colour coupling substances
    • 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
    • G03C7/32—Colour coupling substances
    • G03C7/34—Couplers containing phenols
    • G03C7/344—Naphtholic couplers
    • 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

Definitions

  • R is an alkyl, substituted alkyl (for example CH CH CN allyl or CH CH COOH), or aralkyl radical,
  • Example 6 An exposed silver halide layer, into which are incorpo rated 7 g. of 1-(4'-phenoxy-3sulphophenyl) 3-hepta decyl-S-pyrazolone as color coupler per kg. of emulsion, is developed in the developer composition described in Example 1. After a development time of 5 minutes and with a development temperature of 18 C., a color image is obtained having a gamma value of 1.6. If such an emulsion layer also has added thereto, in addition to the color coupler, 14 g. of 5'-methyl-6'-hydroxy-2-(N-methyl-N-octadecylamino)-4-sulfo-2'-naphthoylanilide per kg. of emulsion and if the development is carried out in similar manner, the gamma value is only 1.3.

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)
US54361A 1959-09-11 1960-09-07 Process for improving the color reproduction in color photographic material Expired - Lifetime US3174862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA32837A DE1099350B (de) 1959-09-11 1959-09-11 Verfahren zur Verbesserung der Farbwiedergabe in farbenphotographischen Materialien

Publications (1)

Publication Number Publication Date
US3174862A true US3174862A (en) 1965-03-23

Family

ID=6927937

Family Applications (1)

Application Number Title Priority Date Filing Date
US54361A Expired - Lifetime US3174862A (en) 1959-09-11 1960-09-07 Process for improving the color reproduction in color photographic material

Country Status (6)

Country Link
US (1) US3174862A (enrdf_load_stackoverflow)
BE (1) BE594935A (enrdf_load_stackoverflow)
CH (1) CH386248A (enrdf_load_stackoverflow)
DE (1) DE1099350B (enrdf_load_stackoverflow)
GB (1) GB907274A (enrdf_load_stackoverflow)
NL (1) NL255792A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459548A (en) * 1967-07-24 1969-08-05 Polaroid Corp Scavengers for oxidized developing agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950290A1 (de) * 1979-12-14 1981-06-19 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von 1-(aralkyl)-2-naphhtholen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309492A (en) * 1939-07-14 1943-01-26 Gen Aniline & Film Corp Process for avoiding color fog on photographic color material
US2428054A (en) * 1945-08-30 1947-09-30 Eastman Kodak Co Photographic color correction using colored couplers
US2525503A (en) * 1946-01-10 1950-10-10 Gen Aniline & Film Corp Production of phenazonium dyestuff images
US2675314A (en) * 1951-04-10 1954-04-13 Eastman Kodak Co Antistain agents for photographic color materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309492A (en) * 1939-07-14 1943-01-26 Gen Aniline & Film Corp Process for avoiding color fog on photographic color material
US2428054A (en) * 1945-08-30 1947-09-30 Eastman Kodak Co Photographic color correction using colored couplers
US2525503A (en) * 1946-01-10 1950-10-10 Gen Aniline & Film Corp Production of phenazonium dyestuff images
US2675314A (en) * 1951-04-10 1954-04-13 Eastman Kodak Co Antistain agents for photographic color materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459548A (en) * 1967-07-24 1969-08-05 Polaroid Corp Scavengers for oxidized developing agent

Also Published As

Publication number Publication date
BE594935A (enrdf_load_stackoverflow)
GB907274A (en) 1962-10-03
CH386248A (de) 1964-12-31
DE1099350B (de) 1961-02-09
NL255792A (enrdf_load_stackoverflow)

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