Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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The Effect of chemical crosslinking in alkaline solution on fibrillation tendency and dyeability of lyocell fiber

알칼리 수용액에서의 화학적 경화를 통한 라이오셀 섬유의 피브릴화 경향 및 염색성에 미치는 영향

  • Lee, Soo (Department of Chemical Engineering, Ghang Won National University) ;
  • Kim, Jin-Woo (Department of Chemical Engineering, Ghang Won National University) ;
  • Jin, Seok-Hwan (Department of Chemical Engineering, Ghang Won National University)
  • 이수 (창원대학교 화공시스템공학과) ;
  • 김진우 (창원대학교 화공시스템공학과) ;
  • 진석환 (창원대학교 화공시스템공학과)
  • Received : 2010.04.15
  • Accepted : 2010.06.21
  • Published : 2010.06.30
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Abstract

In this research, an effective method for reducing the fibrillation of lyocell fibers, which are spun from a solution of cellulose in N-methyl morpholine-N-oxide(NMMO), through consecutive chemical treatments. Undried solution-spun cellulosic fiber was firstly treated with 10 to 30 wt% of multifunctional crosslinking agents, such as ethylene glycol poly(3-chloro-2-hydroxypropyl) ether, and then dipped into alkaline solution to introduce epoxy functions. Finally steam condition was applied to occur a chemical crosslinking in order to reduce the fibrillation on the surface of fibers. Fibrillation was also reduced significantly by adding extra $Na_2SO_4$ in NaOH solution. In addition, Antifibrilllated lyocell fibers show the slightly higher dyeability(4 %) to Cibacron Blue without serious reduction of mechanical properties.

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References

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