• Title/Summary/Keyword: naphthothiazolo carbocyanine dye

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Synthesis of 9-Ethyl-3,3'-Bis(3-sulfopropyl)-4,5,4'5'-Naphthothiazolo Carbocyanine Triethyl Ammonium Salt (9-Ethyl-3,3'-Bis(3-sulfopropyl)-4,5,4'5'-Naphthothiazolo Carbocyanine Triethyl Ammonium Salt의 합성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.31 no.3
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    • pp.416-421
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    • 2014
  • Naphthothiazolo carbocyanine is of industrial importance as red-sensitizing dye in the spectral sensitization. Sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-4,5-naphthothiazolium (inner salt) with triethyl orthopropionate in the presence of triethylamine. The product was identified by using various analytical tools such as elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, $^1H$-NMR spectrometer, TGA and DSC. The maximum absorption peak in methanol solvent was 578nm. Therefore, it was concluded that naphthothiazolo carbocyanine dye can be used as sensitizing dye for the spectral sensitization of photographic emulsion and color cosmetics.

The Synthesis of Naphthothiazolo Carbocyanine Dye (Naphthothiazolo Carbocyanine 증감색소의 합성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.13 no.1
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    • pp.31-39
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    • 1996
  • In this study, sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-4, 5-naphthothiazolium(inner salt) with triethyl orthoformate in the presence of triethylamine. The product was identified by using various analytical tools such as Elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, $^1H-NMR$ spectrometer, TGA and DSC. Therefore, it was concluded that naphthothiazolo carbocyanine dye can be used as red-sensitizing dye for the spectral sensitization of photographic emulsion.

SPECTRAL SENSITIZATION AND PHOTOGRAPHIC CHARACTERISTICS OF NAPHTHOTHIAZOLO CARBOCYANINE DYE

  • Kim, Yeoung-Chan
    • Journal of Photoscience
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    • v.3 no.2
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    • pp.65-69
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    • 1996
  • In this paper, it was studied about the red-sensitive layer. UV-Vis data of the dye at monomeric and J-state were considered with respect to their performance(contrast, density and fog) in photographic emulsion. The sensitizing effect of the dye is found to be strongly structuredependent. Naphthothiazolo carbocyanine dye can be used as red-sensitizing dye for the spectral sensitization of photographic emulsion.

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The Synthesis of Red-Sensitizing Dye for Color Photography (천연색 사진용 적감색소의 합성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.18 no.2
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    • pp.136-141
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    • 2001
  • Naphthothiazolo carbocyanine is of industrial importance as red-sensitizing dye in the spectral sensitization of emulsion microcrystals in negative film-making. In this study, red-sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-4,5-naphthothiazolium(inner salt) with triethyl orthoacetate in the presence of triethylamine. The product was identified by using various analytical tools such as Elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, Mass spectrometer, $^{1}H-NMR$ spectrometer, TGA and DSC. The maximum absorption peak in methanol solvent was 573nm. Therefore, it was concluded that naphthothiazolo carbocyanine dye can be used as red0sensitizing dye for the spectral sensitization of photographic emulsion.

The Synthesis of 9-Phenyl-3,3'-Bis(3-Sulfopropyl)-4,5,4',5'-Naphthothiazolo Carbocyanine Triethyl Ammonium Salt (9-Phenyl-3,3'-Bis(3-Sulfopropyl)-4,5,4',5'-Naphthothiazolo Carbocyanine Triethyl Ammonium Salt의 합성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.13 no.3
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    • pp.73-81
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    • 1996
  • In this study, sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-4,5-naphthothiazolium(inner salt) with triethyl orthobenzoate in the presence of triethylamine. The product was identified by using various analytical tools such as elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, $^1H-NMR$ spectrometer, TGA and DSC. Therefore, it was concluded that 9-phenyl-3,3'-bis(3-sulfopropyl)-4,5,4',5'-naphthothiazolo carbocyanine triethyl ammonium salt can be used as red-sensitizing dye for the spectral sensitization of photographic emulsion.

A Stability on the Solvents of Spectral Sensitizer for Photographic Emulsion (사진유제용 분광증감색소의 용매에 대한 안정성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.14 no.2
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    • pp.65-70
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    • 1997
  • The symmetric naphthothiazolo carbocyanine is of industrial importance as red-sensitizing dye in the spectral sensitization of emulsion microcrystals in negative film-making. The stability on the solvents of naphthothiazolo carbocyanine dye was measured by UV-Vis spectrophotometer, and then all of solvents were stabilized sensitizer. The maximum absorption peak range in various solvents was $600nm{\sim}612nm$. But it was identified that only methanol can be used to photographic emulsion.

Spectral Sensitization and Photographic Characteristics of 9-Phenyl-3,3'-Bis(3-Sulfopropyl)-4,5,4',5'-Naphthothiazolo Carbocyanine Triethyl Ammonium Salt

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.20 no.4
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    • pp.366-371
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    • 2003
  • In this paper, it was studied about the red-sensitive layer. UV-Vis data of the dye at monomeric and J-state were considered with respect to their performance(contrast, speed, density and fog) in photographic emulsion. The sensitizing effect of the dye is found to be strongly structure-dependent. Naphthctbiazolo carbocyanine dye can be used as red sensitizing dye for the spectral sensitization of photographic emulsion.

The Synthesis of Green-Sensitizing Dye for Photographic Emulsion (사진유제용 Green-Sensitizing Dye의 합성)

  • Kim, Yeoung-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.14 no.2
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    • pp.57-64
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    • 1997
  • The symmetric naphthothiazolo carbocyanine is of industrial importance as green-sensitizing dye in the spectral sensitization of emulsion microcrystals in negative film-making. In this study, green-sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-5-phenyl-benzoxazolium(inner salt) with triethyl orthoacetate in the presence of triethylamine. The product was identified by using various analytical tools such as Elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, $^1H$-NMR spectrometer, TGA and DSC. The maximum absorption peak in methanol solvent was 502nm. Therefore, it was concluded that benzoxazolo carbocyanine dye can be used as green-sensitizing dye for the spectral sensitization of photographic emulsion.