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Application of Xanthene Dyes with Fluorescein-Derived Structures for Production of Fluorescent Pigments, and The Analysis of The Optical Properties of The Pigments

플루오레세인 유도체를 갖는 잔틴계 염료의 형광안료 제조로의 응용 및 제조된 안료의 광학 특성 분석

  • Bae, Su-whan (E10 R & D Center, LG Household & Health Care Ltd.)
  • 배수환 ((주)LG생활건강 기술연구원)
  • Received : 2018.07.09
  • Accepted : 2018.08.16
  • Published : 2018.09.30

Abstract

In this study, I investigated the applicability of fluorescein-derived xanthene dyes to fluorescent pigment and the controllability of the optical properties of manufactured pigments. Eosin Y (D&C Red No.22) and phloxine B (D&C Red No.28) were mainly used as a dye to prepare the pigment. Dyes dissolved in a solvent were poured into a powder dispersed in the solvent, then dried and pulverized to fabricate the pigments. Optical characteristics related with fluorescence of the prepared pigment were measured. The optical properties of pigments were varied depending on the solvent used, content of the dye in the pigment, and the ratio of dyes when more then two dyes were mixed. According to the experiment result, it seems that some of the dyes attached to the powder showed fluorescence while the rest did not contribute to it. From the result of pigment washing experiment to explore the binding (or interaction) strength and characteristics of the powder-dye system constituting the pigment, it seems that there are two or more different interactions existing in the pigment system, one of which is relatively stronger than the solvent-dye interaction.

플루오레세인 구조를 갖는 잔틴계 염료의 형광안료로의 응용 가능성 및 제조되는 안료들의 광학 특성 조절 가능성을 확인하기 위하여 본 연구를 진행하였다. 안료 제조에는 수용성 잔틴계 염료인 eosin Y (D&C Red No.22), phloxine B (D&C Red No.28)를 주로 사용하였으며, 염료를 용매에 용해시켜 분체와 분산, 교반하고 이를 건조시켜 분쇄함으로써 안료를 제조 하였고, 제조된 안료들에 대해서는 형광과 관련한 광학 특성을 측정하였다. 사용한 용매의 종류, 염료의 함량, 그리고 염료의 혼합 투입 비율에 따라서 안료의 광학적 특성이 변함을 관찰하였다. 실험 결과에 따르면, 분체에 흡착된 염료 중 일부분이 형광 발색을 하며, 나머지는 형광에 기여하지 않는 것으로 보인다. 안료를 구성하는 분체-염료 계 내부의 결합 (혹은 상호작용) 세기와 그 특성을 파악하기 위한 안료 수세실험 결과, 안료 계 내에는 서로 다른 2개 이상의 상호작용이 존재하며, 그 중 하나는 용매-염료 상호작용보다 비교적 강하였다.

Keywords

References

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