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Functional Dyeing and Finishing using Catechins Extracted from Green Tea(Ⅰ) - Extraction Optimization, Stability, and Content Analysis of Catechins -

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2008, 20(2), pp.75-82
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Taekyeong Kim 1 손송이 1 정종석 1 장경진 1 KWON OH KYUNG 2 최영희 2 정영한 3

1경북대학교
2신풍섬유
3코오롱 중앙기술원

Accredited

ABSTRACT

The optimum extraction conditions of green tea used for a bath were investigated for application to textiles. The stability of the extracts and content of active ingredients were analyzed as well. The extraction was more effective in water and methanol than in ethanol. The optimum extraction temperature was determined as 80℃ in water and 60℃ in methanol. The solid extracts were obtained about 7% in water and 9% in methanol on the weight of dry green tea. The extracts were more stable in acid and neutral conditions than in alkaline region. From the analysis of contents of active ingredients, about 20% of effective catechins was appeared to be contained in the extract solid, which was thought to be available for application to textiles.

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