Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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The Change of Kenaf Fiber Characteristics by the Contents of Noncellulosic Material

비셀룰로오스 함량에 따른 케나프 섬유의 특성변화

  • Lee, Hye-Ja (Dept. of Home Economics Edu., Korea National University of Education) ;
  • Han, Young-Sook (Shinsung Girls' Highschool) ;
  • Yoo, Hye-Ja (Dept. of Clothing & Textiles, Seowon University)
  • 이혜자 (한국교원대학교 가정교육과) ;
  • 한영숙 (신성 여자고등학교) ;
  • 유혜자 (서원대학교 의류직물학과)
  • Published : 2006.11.30
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Abstract

The effects of removal of lignin or hemicellulose on the cottonizing and pulping characteristics of kenaf fiber were studied by comparing the conditions of non-cellulosic material contents, fiber lengths and dyeability. And the effects of lignin or hemicellulose on dyeability of the kenaf fiber using CI Direct Green 26 and CI Direct Red 81 were investigated. The results were as follows. The lignin contents decreased and the kenaf fiber became shorter and finer as the reaction time with sodium chlorite increased. The hemicellulose could be removed by treating sodium hydroxide solution to the fiber from which the lignin partly removed. The 80% of hemicellulose could be removed by 5% of sodium hydroxide solution in 5 minutes. But if lignin were not removed at all, hemicellulose could not be removed. The fiber lengths proper for apparel were obtained after treating sodium chlorite for 10-20 minutes and those for pulping were obtained after treating sodium chlorite for 40 minutes. The kenaf fibers from which lignin and hemicellulose partly removed were dyed with CI Direct Green 26 and CI Direct Red 81. Their dyeability increased as the removal rates of lignin increased. The ${\Delta}E$ values of kenaf fiber dyed with CI Direct Green 26 were lower than CI Direct Red 81.

Keywords

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