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Alkaline Dissolution and Dyeing Properties of Sea-island Type Ultrafine Nylon Fiber

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2010, 22(4), pp.325-331
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

이혜정 1 이효영 2 Eun Ji Park 3 Yeon Ji Choi 4 Sung-Dong Kim 5

1한국생산기술연구원
2건국대학교 섬유공학과
3건국대학교 공과대학 섬유공학
4건국대학교 공과대학 섬유공학과
5건국대학교

Accredited

ABSTRACT

Abstract― The alkaline dissolution behavior of sea-island type ultrafine nylon fiber were dependent on the concentration of NaOH and treatment time, and the most appropriate condition for alkaline dissolution was to treat with 20g/l NaOH for 30 min at 80℃. The dyeing properties of sea-island type ultrafine nylon fiber and regular nylon fiber were examined with 3 different types of acid dyes in this study. The dye uptakes of ultrafine nylon fiber were higher than regular nylon fiber because of large surface area per unit mass, which increased as the dye bath pH decreased. The dyeing rates on ultrafine nylon fiber were faster and dye exhaustions were higher than regular nylon fiber, however color strength and rating of wash fastness were lower. It was also found that levelling type acid dye showed fast dyeing rate on both nylon fibers than metal-complex and milling type acid dyes.

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