한국섬유공학회지 (Textile Science and Engineering)

  • 제60권3호
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  • Pages.171-177
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  • 2023
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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Tropaeolin OO 염료를 이용한 양모 및 나일론 섬유의 염색 및 산성용액에서의 색변화

Dyeing of Wool and Nylon 66 Woven Fabric Using Tropaeolin OO Dye and Color Change in Acidic Solution

  • 성준규 (단국대학교 고분자시스템공학부 파이버융합소재공학전공) ;
  • 김성현 (단국대학교 고분자시스템공학부 파이버융합소재공학전공) ;
  • 한인협 (단국대학교 고분자시스템공학부 파이버융합소재공학전공) ;
  • 이정진 (단국대학교 고분자시스템공학부 파이버융합소재공학전공)
  • Jun Kyu Sung (Department of Fiber Convergence Materials Engineering, Dankook University) ;
  • Sung Hyun Kim (Department of Fiber Convergence Materials Engineering, Dankook University) ;
  • In Hyeop Han (Department of Fiber Convergence Materials Engineering, Dankook University) ;
  • Jung Jin Lee (Department of Fiber Convergence Materials Engineering, Dankook University)
  • 투고 : 2023.03.30
  • 심사 : 2023.05.16
  • 발행 : 2023.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

We conducted previous research to apply several halochromic dyes to wool or nylon woven fabrics for the development of a textile chemosensor that can detect acidic solutions. In this study, we investigated the dyeing and acid-sensing properties of tropaeolin OO, a pH-indicating dye, on wool or nylon 66 woven fabrics. The maximum absorption wavelength of tropaeolin OO in an aqueous solution was found to be 440-450 nm with a light orange color in the pH range of 4 to 12. At pH 0.5 and 1, the maximum absorption wavelength shifted to 530 nm, resulting in a purple color. Between pH 1.5 and 3, the absorption curves showed an intermediate shape with a mixture of colors, ranging from red to orange. The color yields (K/S) of the dyed wool fabric were highly dependent on the dyebath pH and the dye concentration. The nylon fabric showed lower K/S values than the wool but exhibited good color yield. When the control sample dyed at pH 4 and a dye concentration of 1% o.w.f, was immersed in acidic solutions ranging from pH 1.5 to 5, no significant color changes were observed above pH 2.5. However, at pH 2 or below, the original orange color changed remarkably to dark purple or brown for wool and brown for nylon fabric. Neutralization of the discolored samples led to a complete recovery of the original orange color, indicating the possibility of repeated sensing. The dyed wool fabric showed moderate wash fastness and good rubbing fastness, while the nylon fabric exhibited good wash fastness and excellent rubbing fastness properties. These results suggest the potential application of both fabrics as acid-detecting textile sensors.

키워드

과제정보

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2019R1F1A1062860). 본 실적은 단국대학교 보호복연구소 소속 학부생 연구원이 참여하여 이룩한 연구성과물로서 해당 연구소는 2023년도 단국대학교 대학혁신지원사업 학부생 연구트랙제 사업의 지원을 받았음.

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