US2148979A - Color photography - Google Patents

Color photography Download PDF

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Publication number
US2148979A
US2148979A US145066A US14506637A US2148979A US 2148979 A US2148979 A US 2148979A US 145066 A US145066 A US 145066A US 14506637 A US14506637 A US 14506637A US 2148979 A US2148979 A US 2148979A
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US
United States
Prior art keywords
color
silver halide
halide emulsion
former
kilo
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
US145066A
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English (en)
Inventor
Dieterle 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.)
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 US2148979A publication Critical patent/US2148979A/en
Anticipated expiration legal-status Critical
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    • 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
    • G03C7/26—Silver halide emulsions for subtractive colour processes
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes

Definitions

  • the present invention relates to color photography and more particularly to the sensitizing oi multi-layer material for color development.
  • One of its objects is to provide a durable silver 5 halide emulsion layer containing color formers andhighly sensitive to red and to yellow green.
  • a further object is to provide a layer the sensitivity of which is sumcient both for the negative and the reversal process.
  • the present invention is based Von the observation that for sensitizing multi-layer silver halide emulsions suitable for color photography Il not all sensitizers used for ordinary black andwhite photography are operative. This is due to the fact that the sensitivity of a great many sensitizers is considerably depressed by the colorforming component contained in the layer.
  • the invention consists in sensitizing to red a '25 layer containing a color former for the bluegreen picture by addition of a sensitizer from the class of the dialkylaminothio, dialkylaminoselenoand dialkylaminoindocarbocyanines, and sensitizing to yellow-green a layer containing 30 a color former for the purple picture by addition of a dystui .from the class of fthe vsymmetrical 19.5'naphthoxocarbocyanines or unsymmetrical carbocyanines which contain a thiazoline ring or an azoie, benzoxazole, benzthiazoleor benz- 35 selenaz'ole-ring with further radicals in the benzene ring.
  • the substituents may be alkyl, halogen, benzoylamino or hydroaromatic groups (for example cyclohexyl); moreover, instead of one or both benzene rings, naphthalene rings and their o tetra-hydrogenated derivatives may be connected in the three possiblepositions with the ring containing nitrogen.
  • the dyestuis used for sensitizing the red-sensitive layer are described in U. S. patent application Ser. No. 591,389 namelyd Febru- 45 ary 0, 1932, and also in the German specification o. 606,699; in U. S. Patent 2,020,636, U. S. Patents 2,066,966/67/68 and in French specications Nos. 42,245 (addition to 730,966) and v42,256 (addition to 734,200).
  • For'sensitizing the 50 yellow-green sensitive layer there may be used,
  • the middle car-g bination disclosed herein is the rst combina i tion of layers the sensitivity of which is sufficient for negative processes or reversal processes.
  • the invention is also applicable for producing single layers carrying color formers which serve for making component color pictures.
  • the layers may also contain other usual additions to emulsions, for example stabilizers.
  • a multi-layer material for color photography comprising a support, a red-sensitive silver halide emulsion layer containinga color-former for the blue-green picture and capable of forming a dyestuff selected from the group consisting of quinoneimine-, azomethineand azo-dyestuis, said layer containing further a sensitizing dye corresponding to the following general formula:
  • Y and Y1 stand for a member of the group consisting of R o,s,se, ⁇ o/
  • R stands for alkyl
  • X stands for an anion
  • U stands for a member oi the group consisting of the dialkylamino radical, alkyl, alkoxy, a fused-on benzene nucleus, a tetrahydrogenated benzene nucleus
  • a yellow-green sensitive silver halide emulsion layer containing a color former for the purple picture and capable of forming a dyestui selected from the group consisting of quinoneimine, azomethinen and azodyestui'fs, said layer containing further a sensitizing dye being a member of the group consisting of naphthoxocarbocyanines, unsymmetrical carbocyanines containing one thiazoline nucleus and dyes corresponding with the following general formula: a
  • Rl /Zi V and W being a member of the group consisting of alkyl, alkoxy, a fused-on benzene nucleus, a
  • a multi-layer material for color photography which comprises a support, a red-sensitive silver halide emulsion layer containing as a colorformer octodecy- 1 -hydroxy- 2-naphthoylamine and a dye corresponding to the following formula R being alkyl, X being an anion, and a yellow- 4green sensitive silver halide emulsion layer containing as a color-former l-(m-oleoyl-aminophenyl) -S-methyl--pyrazolone and a dye corresponding to the following formula H Hl wherein R stands for alkyl and X stands for an anion.
  • a multi-layer material for color photography comprising a support, a red-sensitive silver halide emulsion layer containing a naphtahol color-former and a dye corresponding to the i'ollowing general formula:
  • Y and Y1 stand for a member of the group consisting of R 0, S, Se, ⁇ C/
  • a yellow-green sensitive silver halide emulsion layer containing a pyrakzolone colorformer and a dye being a member of the group consisting of 13.13'-naphthoxocarbocyanines, un-
  • V and ,W being a member of the group consisting of alkyl, alkoxy, a fused-on benzene nucleus, a tetrahydrogenated. benzene nucleus, the benzoylamino radical and a hydroaromatic radical, X being an anion, Z1 being a. member of the group consisting of 0, S, and Se, and R1 being a member of the group consisting of H and alkyl.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US145066A 1936-05-29 1937-05-27 Color photography Expired - Lifetime US2148979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE750122T 1936-05-29

Publications (1)

Publication Number Publication Date
US2148979A true US2148979A (en) 1939-02-28

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ID=32044215

Family Applications (1)

Application Number Title Priority Date Filing Date
US145066A Expired - Lifetime US2148979A (en) 1936-05-29 1937-05-27 Color photography

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Country Link
US (1) US2148979A (enrdf_load_stackoverflow)
BE (1) BE421721A (enrdf_load_stackoverflow)
CH (1) CH206204A (enrdf_load_stackoverflow)
DE (1) DE750122C (enrdf_load_stackoverflow)
FR (1) FR822436A (enrdf_load_stackoverflow)
GB (1) GB480778A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567712A (en) * 1945-06-07 1951-09-11 Du Pont Element for recording photographic images
US2640776A (en) * 1947-08-29 1953-06-02 Eastman Kodak Co Sensitized photographic emulsion containing color couplers
US2708625A (en) * 1951-01-19 1955-05-17 Gen Aniline & Film Corp Photographic element for the production of subtractive color images by sulfonhydrazide color development

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971941C (de) * 1938-11-03 1959-04-16 Agfa Ag Verfahren zur Sensibilisierung von Farbstoffbildner enthaltenden Halogensilberemulsionen
DE972079C (de) * 1942-02-11 1959-05-21 Agfa Ag Verfahren zur Sensibilisierung von Farbstoffbildner enthaltenden Halogensilberemulsionen
DE968111C (de) * 1943-05-28 1958-01-16 Agfa Ag Fuer Photofabrikation Verfahren zur Sensibilisierung von Halogensilberemulsionen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE376781A (enrdf_load_stackoverflow) * 1930-03-19
GB354898A (en) * 1930-05-31 1931-08-20 Ici Ltd Improvements in and relating to the manufacture of photographic sensitisers
BE386129A (enrdf_load_stackoverflow) * 1931-02-07
DE630317C (de) * 1931-03-28 1936-05-26 I G Farbenindustrie Akt Ges Verfahren zur Sensibilisierung von Halogensilberemulsionen
FR739866A (fr) * 1931-07-11 1933-01-18 Ig Farbenindustrie Ag Procédé de préparation d'émulsions d'un halogénure d'argent sensibles à la lumière rouge
DE625181C (de) * 1931-07-12 1936-02-10 I G Farbenindustrie Akt Ges Verfahren zur Rotsensibilisierung photographischer Halogensilberemulsionen
BE395935A (enrdf_load_stackoverflow) * 1932-04-26
GB408596A (en) * 1932-10-06 1934-04-06 John Logie Baird Improvements in or relating to television apparatus or the like
GB415949A (en) * 1933-01-26 1934-09-06 Ig Farbenindustrie Ag Process for sensitising photographic silver halide emulsions
FR776597A (fr) * 1933-08-08 1935-01-29 Ig Farbenindustrie Ag Procédé de production d'émulsions orthochromatiques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567712A (en) * 1945-06-07 1951-09-11 Du Pont Element for recording photographic images
US2640776A (en) * 1947-08-29 1953-06-02 Eastman Kodak Co Sensitized photographic emulsion containing color couplers
US2708625A (en) * 1951-01-19 1955-05-17 Gen Aniline & Film Corp Photographic element for the production of subtractive color images by sulfonhydrazide color development

Also Published As

Publication number Publication date
GB480778A (en) 1938-02-25
BE421721A (enrdf_load_stackoverflow) 1937-06-30
CH206204A (de) 1939-07-31
FR822436A (fr) 1937-12-30
DE750122C (de) 1944-12-14

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