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Washing Fastness of PET Fibers according to Supercritical CO2 and Aqueous Dyeing Methods

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2020, 32(4), pp.208-216
  • DOI : 10.5764/TCF.2020.32.4.208
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : November 26, 2020
  • Accepted : December 15, 2020
  • Published : December 27, 2020

Jiyeon Oh 1 Changpyo Park 1 Kim, Sam Soo 1 Lee Jae woong 1

1영남대학교 파이버시스템공학과

Accredited

ABSTRACT

In this study, C.I. Disperse Red 60 (DR60), C.I. Disperse Yellow 54 (DY54) dyes were used to investigate the washing fastness characteristics of PET fibers according to supercritical CO2 and aqueous dyeing process. The changes in K/S values and L* values before and after washing of dyed PET fibers were observed according to the KS K ISO 105 washing fastness measurement method. In addition, it was confirmed by changing the ΔE* and ΔL* values of control PET fibers. Overall, it was confirmed that both the supercritical CO2 and aqueous dyeing process had excellent washing fastness ratings of 4-5 for DR60 and DY54 dyes. Comparatively, the K/S and L* values for before and after washing of PET fibers with supercritical CO2 dyeing process was higher than that of the aqueous dyeing process and the ΔE* and ΔL* values of the control PET fibers were low. From the results, we observed that the supercritical CO2 dyeing process of PET fibers has better washing fastness characteristics than the aqueous dyeing process.

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