Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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The Effect of Aftertreatment Conditions on the Dyeability of PET Filament

Poly(ethylene terephthalate) filament의 후처리 조건이 염색성에 미치는 영향

  • Lee, Dae-Soo (Department of Textile Engineering, College of Engineering, Sung Kyun Kwan University, Suwon, 440-746) ;
  • Han, Myeong-Hee (Department of Textile Engineering, College of Engineering, Sung Kyun Kwan University, Suwon, 440-746)
  • Published : 1990.09.01
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Abstract

The crystallinity and dyeability of PET filament were studied when the conditions of drawing and heat-setting were varied. The crystaltinity of PET filament was increased as the drawing ratio and heatsetting temperature were increased. The dye uptake and dyeing rate of PET filament were decreased as the drawing ratio was increased. With increasing the heat-setting temperature, however, the dye uptake and dyeing rate were decreased at an early stage, showing the minimum at $160^{\circ}C-180^{\circ}C$ and then increased above that temperature. The thermal shrinkage of PET filament was decreased as the drawing ratio was increased, while increasing as the heat-setting temperature was increased.

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