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

The Korean Society of Clothing and Textiles (한국의류학회)
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Effects of Alkali Treatment on Physical Properties of PET Fabrics

알칼리 처리에 의한 폴리에스테르 직물의 물성 변화

  • Yu, Hye-Ja (Dept. of Clothing and Textiles, Seowon University) ;
  • Choe, Jong-Myeong (Dept. of Home Economics Edunation, Seowon University) ;
  • Lee, Hye-Ja (Dept. of Home Economecs Education, Korean National Education University)
  • 유혜자 (서원대학교 자연과학대학 의류직물학과) ;
  • 최종명 (사범대학 가정교육학과) ;
  • 이혜자 (한국교원대학교 제3대학 가정교육과)
  • Published : 1996.07.01
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Abstract

Polyethylene Terephthalate (PET) has been used as a mainstream fiber to make silklike fiber. The silky characteristics such as softness, dry touch feeling and flexibility can be obtained by weight reduction treatment. In aqueous alkali solution, the surface of PET is dissolved away and reduced in weight. The PET fiber, yarn and fabric become thinner and the gaps between fibers are wider. Its mobility is greatly improved without change of basic structures of the treated PET fibrics. The alkali treatment was conducted under the various experimental conditions such as alkali (NaOH) concentration, treatment time and temperature. As the weight loss increased, drapability improved and tensile strength remarkably reduced. When the PET fabrics lost 30% in their weight, drape coefficient lowered as much as 30oA and tensile stregth lowered as much as 50%. The weight loss over 30% brings great improvement in drapability and dyeability and significant decline in durability. By the alkali treatment, absorbency in spectrophotometer of dyed PET can be increased as much as 82% due to the increase of the surface area and formation of microvoids on the surface.

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