직/편성물 염색

The Characteristics of Supercritical Carbon Dioxide Dyeing of Poly(ethylene terephthalate) Fibers.

  • 출판일1999.08
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 348
Researchers compared the use of supercritical carbon dioxide dyeing on commercially available polyethylene terephthalate (PET) fibers with conventional dyeing methods. Fibers were examined for degree of polymerization and microstructure after dyeing with C.I. Disperse Blue 60. The measured value of color deepness (K/S) indicated that fibers with a higher crystallinity dyed a deeper color, which contradicted the accepted theory of dyeing. Microscopic observation of fiber cross section and measurement of dye uptake indicated that supercritical carbon dioxide dyeing produced a deeper color. PET with a low molecular weight and/or a small optical birefringence value showed high dye uptake. 14 refs.
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