• 제목/요약/키워드: textile finishing

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녹차추출 카테킨을 활용한 기능성 염색가공(I) - 카테킨의 추출 최적화와 안정성 및 함량 분석 - (Functional Dyeing and Finishing using Catechins Extracted from Green Tea(I) - Extraction Optimization, Stability, and Content Analysis of Catechins -)

  • 김태경;손송이;정종석;장경진;권오경;최영희;정영한
    • 한국염색가공학회지
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    • 제20권2호
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    • pp.75-82
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    • 2008
  • 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 $80^{\circ}C$ in water and $60^{\circ}C$ 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.

섬도제어 연신공정에 의한 세섬화 양모 소재의 물성 연구 (Physical Properties and Dyeability of Fine Count Wool Yarns and Its Fabrics by Drawing Process of Fineness Control)

  • 김미경;전병대;정재석
    • 한국염색가공학회지
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    • 제28권4호
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    • pp.253-270
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    • 2016
  • In the wool textile industry, the necessity for technology development has been steadily raised to create improved fineness and yarn count of existing wool yarns with thick fineness for ensuring higher quality grades of wool yarn. Recently, through controlling fineness of wool yarn for making finer wool in relation with environmentally-friendly and high-sensitivity trend, a differentiated continuous drawing process where the quality of wool can be artificially manipulated has been suggested in the latest textile industry. This study investigated the basic conditions during the continuous drawing process which enable to manufacture wool yarn with fine count by controlling reducing agent treatment, physical drawing and drying after reducing agent treatment, and oxidizing agent post-treatment conditions. Furthermore, this study reviewed the drawing effects by applying the basic conditions for reduction and oxidation reaction in the drawing processes of wool/cashmere, wool/silk, wool/polyester blended yarns as well as such wool yarns. Also, in order to review the practicability, this study examined the physical properties and dyeability of drawn wool yarn applied textile materials in comparison with normal wool yarn applied textile materials.