ES157458A1 - SENSITIZATION OF PHOTOGRAPHIC EMULSIONS TO PLARA HALOGENIDES BY COLOR COMBINATIONS - Google Patents

SENSITIZATION OF PHOTOGRAPHIC EMULSIONS TO PLARA HALOGENIDES BY COLOR COMBINATIONS

Info

Publication number
ES157458A1
ES157458A1 ES0157458A ES157458A ES157458A1 ES 157458 A1 ES157458 A1 ES 157458A1 ES 0157458 A ES0157458 A ES 0157458A ES 157458 A ES157458 A ES 157458A ES 157458 A1 ES157458 A1 ES 157458A1
Authority
ES
Spain
Prior art keywords
sensitization
photographic emulsions
plara
halogenides
color combinations
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
ES0157458A
Other languages
Spanish (es)
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of ES157458A1 publication Critical patent/ES157458A1/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
    • 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
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Indole Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Sensibilización de emulsiones fotográficas al halogenuro de plata lleva a un grado de supersensibilización caracterizado en que al menos un colorante sensibilizador es utilizado simultáneamente con al menos un colorante polimetínico según la fórmula general siguiente: **(Ver fórmula)** en la cual Z y Y son los átomos no metálicos necesarios a la ciclisación hetero- o isocíclica n es 1 ó 2 y en la cual los átomos de hidrógeno de la cadena abierta pueden ser substituídos por grupos de hidrocarburo por halógenos o por cadenas carbónicas secundarias.Sensitization of photographic emulsions to silver halide leads to a degree of supersensitization characterized in that at least one sensitizing dye is used simultaneously with at least one polymethine dye according to the following general formula: ** (See formula) ** in which Z and Y are the non-metallic atoms necessary for hetero- or isocyclic cyclization n is 1 or 2 and in which the hydrogen atoms of the open chain can be replaced by halogens or by secondary carbon chains for hydrocarbon groups.

ES0157458A 1941-05-22 1942-05-21 SENSITIZATION OF PHOTOGRAPHIC EMULSIONS TO PLARA HALOGENIDES BY COLOR COMBINATIONS Expired ES157458A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE626467X 1941-05-22

Publications (1)

Publication Number Publication Date
ES157458A1 true ES157458A1 (en) 1943-03-01

Family

ID=6578250

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0157458A Expired ES157458A1 (en) 1941-05-22 1942-05-21 SENSITIZATION OF PHOTOGRAPHIC EMULSIONS TO PLARA HALOGENIDES BY COLOR COMBINATIONS

Country Status (6)

Country Link
US (1) US2644754A (en)
BE (1) BE445646A (en)
ES (1) ES157458A1 (en)
FR (1) FR882245A (en)
GB (1) GB626467A (en)
NL (1) NL61612C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830883A (en) * 1954-04-29 1958-04-15 Texas Co Gasification of sulfur-bearing carbonaceous fuels
BE560805A (en) * 1956-09-13
DE19711142A1 (en) * 1997-03-18 1998-09-24 Agfa Gevaert Ag Highly sensitive color photographic recording material with increased sensitivity in the blue spectral range

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2127340A (en) * 1937-03-29 1938-08-16 Eastman Kodak Co Photographic emulsion containing supersensitized thiazolocarbocyanines
US2274782A (en) * 1937-11-24 1942-03-03 Chromogen Inc Light-sensitive photographic material
BE436514A (en) * 1938-10-01

Also Published As

Publication number Publication date
US2644754A (en) 1953-07-07
NL61612C (en)
BE445646A (en)
FR882245A (en) 1943-05-21
GB626467A (en) 1949-07-15

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