직/편성물 염색

The Effect of Supercritical Carbon Dioxide Dyeing Conditions on the Morphology of Polyethylene Terephthalate [PET] Fibers

  • 출판일1996.01
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 271
An experiment investigated the effect of supercritical carbon dioxide dyeing on the morphology and physical properties of PET fibers. Tests employed commercially manufactured samples of conventional and microfiber PET yarns, both in the partially oriented and fully drawn state. The dyeing process involved bath pressures of 300 atmospheres at a temperature of 127 degrees centigrade for durations averaging 38 minutes. Optical birefringence spectrography, thermal gravimetric analysis, and scanning spectrography, thermal gravimetric analysis, and scanning electron microscopy characterized the PET samples for changes in fiber morphology and physical properties. Results indicated that although the supercritical carbon dioxide molecules penetrated the PET fibers to some extent, neither morphology nor fiber properties were affected. 8 refs.
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