GB483548A - Improvements in silver halide emulsions for use in processes of colour photography - Google Patents

Improvements in silver halide emulsions for use in processes of colour photography

Info

Publication number
GB483548A
GB483548A GB2283336A GB2283336A GB483548A GB 483548 A GB483548 A GB 483548A GB 2283336 A GB2283336 A GB 2283336A GB 2283336 A GB2283336 A GB 2283336A GB 483548 A GB483548 A GB 483548A
Authority
GB
United Kingdom
Prior art keywords
sensitizer
colour former
oxy
silver halide
halide emulsions
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
GB2283336A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2283336A priority Critical patent/GB483548A/en
Publication of GB483548A publication Critical patent/GB483548A/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
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes

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)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

483,548. Photographic sensitive materials. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Aug. 19, 1936, No. 22833. [Class 98 (ii)] Silver halide emulsions for use in photographic multicolour processes contain a dyeformer for blue-green and as sensitizing dye for red a symmetrical or unsymmetrical dialkylaminobenzthiocarbocyanine, dialkylaminobenzselenocarbocyanine, or dialkylaminoindocarbocyanine. The sensitizing dye may contain an alkyl group in the polymethine chain. In examples: (1) the colour former is 1-oxy- 2: 4-dibromonaphthalene and the sensitizer p-diethylaminobenzthiocarbocyanine, p - di - methylaminobenzthiazole - trimethine cyanine, or p-diethylaminobenzthizaole - # - methyltrimethinecyanine; (2) the colour former is octodecyl - 1 - oxy - 2 - naphthoylamine and the sensitizer p-diethylaminobenzselenocarbocyanine ; (3) the colour former is alpha-oxynaphthoic acid and the sensitizer is p-diethylaminoindocarbocyanine or 3 : 3<1> - diethyl - 6 - diethylaminobenzthiazole - trimethinecyanine; and (4) the colour former is sodium 1-N-stearoyl - 4 - N - (1<1> - oxy - 2<1> - naphthoyl) - phenylenediamine sulphonate and the sensitizer 3 : 3<1>- diethyl - 5<1> : 6<1> - diethoxy - 6 - diethylaminobenzthiazole - trimethinecyanine iodide or 3- ethyl - 6 - diethylamino - benzthiazole - 11 : 11 : 3<1> - trimethyl - 6<1> - methoxyindoleninotrimethinecyanine. Specifications 383,486, 400,951, 402,521, 410,481, and 418,157 are referred to.
GB2283336A 1936-08-19 1936-08-19 Improvements in silver halide emulsions for use in processes of colour photography Expired GB483548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2283336A GB483548A (en) 1936-08-19 1936-08-19 Improvements in silver halide emulsions for use in processes of colour photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2283336A GB483548A (en) 1936-08-19 1936-08-19 Improvements in silver halide emulsions for use in processes of colour photography

Publications (1)

Publication Number Publication Date
GB483548A true GB483548A (en) 1938-04-19

Family

ID=10185779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2283336A Expired GB483548A (en) 1936-08-19 1936-08-19 Improvements in silver halide emulsions for use in processes of colour photography

Country Status (1)

Country Link
GB (1) GB483548A (en)

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