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The Influence of the Contact Amount of Supercritical CO2 on Dyeing Uniformity

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2019, 31(1), pp.25-32
  • DOI : 10.5764/TCF.2019.31.1.25
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : October 17, 2018
  • Accepted : January 17, 2019
  • Published : March 27, 2019

Shin Park 1 Hyunseuk Choi 2 Taeyoung Kim 1 Taehyun Song 1

1(주)대주기계
2DYETEC연구원

Accredited

ABSTRACT

The influence of the contact amount of carbon dioxide per unit mass of dyestuff (α) on dyeing uniformity in supercritical fluid dyeing is analyzed in this study. The experiments using a 5L class Pilot Scale dyeing machine is carried out for this study purpose. For a fixed temperature and pressure, the amount of sample and the dyeing leveling time were considered as process variables. The results show that the increase in the amount of the sample causes a higher color difference than the reference sample, and it also increases the amount of residual dye. On the other hand, the color difference tended to decrease with the increase in dyeing time. Based on these results, the correlation between α value and dyeing uniformity in supercritical fluid dyeing is obtained.

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