US2179234A - Manufacture of multicolor photographs - Google Patents

Manufacture of multicolor photographs Download PDF

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Publication number
US2179234A
US2179234A US100319A US10031936A US2179234A US 2179234 A US2179234 A US 2179234A US 100319 A US100319 A US 100319A US 10031936 A US10031936 A US 10031936A US 2179234 A US2179234 A US 2179234A
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US
United States
Prior art keywords
color
film
multicolor
layers
developing
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
US100319A
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English (en)
Inventor
Schneider Wilhelm
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.)
GAF Chemicals Corp
Original Assignee
Agfa Ansco Corp
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 Ansco Corp filed Critical Agfa Ansco Corp
Application granted granted Critical
Publication of US2179234A publication Critical patent/US2179234A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes

Definitions

  • One of its objects is an improved process of producing multicolor photographs. Another object is a process of producing a multicolor photograph by a single development in color. Another object is a process of producing a multicolor photograph by a single exposure and a single development in color. Further objects will be seen 7 from the detailed specification following hereafter.
  • the present invention relates to the treatment of a photographic layer in a simple manner to produce two-color or multicolor pictures without any developing operation in excess'of that for normal black-a'nd-white development.
  • Layers suitable for the invention are of the kind which have been described in the co-pending application Ser. No. 90,726 filed July 15, 1936. They are silver halide emulsions, to which has been added, for example, a substance obtainable by the reaction of a compound which by known reactions is capable of forming dyestuffs, for example an amine, a phenol, an aminophenol, a naphthol or an amino-n'aphthol, or a compound having a reactive methylene-group, with a highly polymeric carboxylic acid or a derivative thereof, for instance, the condensation product from U polyvlnyl-maleic-acid-anhydride and p-amino- .phenyl-3-methylpyrazolon having probably the formula:
  • maleic-acid-anhydride and m-arninophenol having probably the formula (on-oH-on-on coon ,OONH- So also the silver halide emulsion layers described in the copending application Ser. No. 72,718 filed April 11, 1936, may be used.
  • These contain as coupling components for the color development such compounds as are fast to diiiusion in the binding agent used, for instance the gelatin or the like.
  • Suitable groups which determine such fastness to diffusion are, for instance, diphenyl, stilbene, azoxy-benzene, hydroxynaphthoic acid amide, diaryl-urea, benzthiazole and certain phenols, aminophenols containing substituents in the 3:5-position and the like.
  • Color-forming components in which these groups are introduced are, for example, phenols, anilines, naphthols,
  • naphthylamines amino-naphthols; also all substances which have a reactive methylene-group, for example an acetoacetic ester, a cyanoacetic ester, a benzoyl-acetic ester, hydrindene, pyrazolone, cumaranone.
  • Further suitable components are for instance a-hydroxynaphthoic-acid-benzi- [m hydroxyphenylaminocarboyll diphenyl or the like.
  • these layers have the property that the incorporated color-former is converted into dyestuff by 'a secondary process during the color develop ment and is more strongly held in the light-sensitive layer, which generally comprises gelatin, than has been the case with the bodies hitherto proposed for the purpose; thus they withstand the usual photographic baths. treatment nor inthe subsequent washing with water are they dissolved or washed off. Only under these conditions is it possible to conduct in a single operation a development of all the contributory colors in three superimposed layers.
  • this film is exposed in a photographic or cinematographic camera and then developed with 2. normal black and white developer to produce a nega tive.
  • a developer which does not react with the coupling components incorporated in the layers, for instance, ,amidol, para-methylaminophenol, or hydroquinone.
  • the film without being fixed, .is exposed to the general illumination, whereupon the residual silver halide is developed with a color-forming developer, ,for instance para-dimethylamino-aniline.
  • the general illumination and color development following the first black-and-white development may advantageously be combined by merely conducting the color development in bright light.
  • the silver present in the layers may be removed by any of the usual solvents for silver. It is also possible to remove already the silver formed in the first developing operation by means of the known silver dissolving agents.
  • the process may similarly be conducted for producing copies by copying, optically or in contact, an exposed film made by the process above described, enlargement or diminuation being used if desired, on such a material and developing to a colored positive picture in the manner described.
  • a support for instance a Celluloid film
  • a support carries on its front face an orthochromatically color-sensitized layer in which incorporated diphenylcarboyl-4.4'-di-(paraamino-1-phenyl-3-methyl-5-pyrazolone) as a red developing component.
  • a not specially sensitized layer which contains as the yellow developing component dibenzoylaceticbenzidide-3.3-dicarboxylic acid and at the same time a yellow filter color, for example tartrazine.
  • a layer of emulsion which is sensitive to red light and contains as the blue developing component 4.4"-di-1-hydroxy-2- naphthoylamino) -diphenyl. Then this film is exposed and first developed for 10 minutes in an amidol developer (200 cc. of water, 1 gram of amidol, 10 grams of sodium sulfite crystals, 0.2
  • a process of producing multicolor photographs which comprises producing a multilayer film having incorporated in the several gelatine silver halide emulsion layers a dye component capable of forming a dye with a developer adapt- -solved form of diffusing components and removing the developed silver from said film.
  • a process of producing multicolor photographs which comprises producing a multilayer film having the emulsion layers arranged in superposition 0n the same side of the support and having incorporated in the several gelatine silver halide emulsion layers a dye component capable of forming a dye with a developer adapted for color development said dye components although soluble in aqueous photographic developing solutions being of such molecular constitution that they are incapable in such dissolved form of diffusing in gelatine in any photographic treating bath, exposing said multilayer film to a colored object,-developing the exposed film in a developer not capable of forming a color with said dye components, exposing said multilayer film a second time simultaneously developing all the layers of the exposed film in a developer capable of forming dyes with said dye components and removing the developed silver from said film.
  • a process of producing multicolor photographs which comprises producing a multilayer film having incorporated in the several gelatine silver halide emulsion layers a dye component capable of forming a dye with a developer adapted for color development, said dye components although soluble in aqueous photographic developing solutions being of such molecular con-.
  • a process of producing multicolor photographs which comprises producing a film having one side coated with an orthochromatically sensitized silver halide emulsion layer containing diphenyl 4.4" (para amino 1 phenyl 3 methyl-5-pyrazolone) and this emulsion layer with a silver halide emulsion layer which has not been specially sensitized and containing dibenzoylacetic-benzidide-3.3-dicarboxylic acid and a.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US100319A 1935-10-03 1936-09-11 Manufacture of multicolor photographs Expired - Lifetime US2179234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0053325 1935-10-03

Publications (1)

Publication Number Publication Date
US2179234A true US2179234A (en) 1939-11-07

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ID=7193572

Family Applications (1)

Application Number Title Priority Date Filing Date
US100319A Expired - Lifetime US2179234A (en) 1935-10-03 1936-09-11 Manufacture of multicolor photographs

Country Status (5)

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US (1) US2179234A (en(2012))
BE (1) BE417705A (en(2012))
CH (1) CH201642A (en(2012))
FR (1) FR811541A (en(2012))
NL (1) NL58558C (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423730A (en) * 1942-06-12 1947-07-08 Eastman Kodak Co Acylamino phenols
US2428108A (en) * 1944-03-31 1947-09-30 Du Pont Polyamide color formers
US2442930A (en) * 1944-09-29 1948-06-08 Gen Aniline & Film Corp Process for developing multilayer film containing color formers
US2463838A (en) * 1943-02-18 1949-03-08 Du Pont Polymeric color couplers
US2509232A (en) * 1945-11-28 1950-05-30 British Tricolour Processes Lt Color photography
US2555681A (en) * 1945-11-28 1951-06-05 Coote Jack Howard Process for the production of multicolor photographic images
US2665986A (en) * 1939-11-02 1954-01-12 Gevaert Photo Prod Nv Process of producing colored reversal images

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665986A (en) * 1939-11-02 1954-01-12 Gevaert Photo Prod Nv Process of producing colored reversal images
US2423730A (en) * 1942-06-12 1947-07-08 Eastman Kodak Co Acylamino phenols
US2463838A (en) * 1943-02-18 1949-03-08 Du Pont Polymeric color couplers
US2428108A (en) * 1944-03-31 1947-09-30 Du Pont Polyamide color formers
US2442930A (en) * 1944-09-29 1948-06-08 Gen Aniline & Film Corp Process for developing multilayer film containing color formers
US2509232A (en) * 1945-11-28 1950-05-30 British Tricolour Processes Lt Color photography
US2555681A (en) * 1945-11-28 1951-06-05 Coote Jack Howard Process for the production of multicolor photographic images

Also Published As

Publication number Publication date
FR811541A (fr) 1937-04-16
NL58558C (en(2012))
CH201642A (de) 1938-12-15
BE417705A (en(2012))

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