Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
권호 표지

The physical properties and the dyeability of the easily dyeable polyester yarn under atmospheric pressure

상압가염형 폴리에스테르 섬유의 물성과 염색성

  • 김태경 (한국염색기술연구소) ;
  • 윤석환 (한국염색기술연구소) ;
  • 신상엽 ((주)신한 섬유가공연구소) ;
  • 임용진 (경북대학교 공과대학 염색공학과) ;
  • 조규민 (영남이공대학 텍스타일시스템 계열)
  • Published : 2001.12.01
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Abstract

The physical properties and the dyeability of the easily dyeable polyester yarn(EDY) were investigated and compared with those of regular polyester (REG-PET). The EDY, copolymerized with small amount of polyethylene glycol(PEG), showed higher intensity of aliphatic CH peak in IR spectrum, lower density and lower compactness than those of the REG-PET from the analysis of IR, density gradient column and XRD respectively. In the physical properties, the EDY has lowers $T_g$, $T_m$, specific stress and initial modulus, and also has higher strain than that of the REG-PET The EDY can be dyed under atmospheric pressure and its dyeing Fate was faster than REG-PET due to low $T_d$, and this seems to be caused by the increased flexibility of Polymer chain in amorphous region of the EDY due to the copolymerization of PEG.

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