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Quantitative Analysis of Relative Adsorption of Disperse Dyes on Polyurethane in Polyurethane-impregnated Polyester Microfibers

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2020, 32(3), pp.121-127
  • DOI : 10.5764/TCF.2020.32.3.121
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : August 11, 2020
  • Accepted : August 31, 2020
  • Published : September 27, 2020

Heejeong Jun 1 Suhyeon Park 1 이준헌 1 Taekyeong Kim 1

1경북대학교 섬유시스템공학과

Accredited

ABSTRACT

The analysis method of relative adsorption of disperse dyes on impregnated polyurethane resin and polyester fiber separately was investigated. The solvents for extracting the dyes from polyurethane resin and polyester fiber were determined by acetone and DMF, respectively. By extracting the dyed fibers with acetone at room temperature within 30 minutes, the dyes adsorbed only on the polyurethane resin could be extracted. And then by additional extracting the same fabrics with DMF at 95℃ for longer than 1 hour, the dyes adsorbed on polyester fabrics was extracted. This means that the dyes adsorbed on polyurethane and polyester could be extracted separately and that relative adsorption of the dyes on the both components could be analyzed quantitatively. Using this analysis method, the relative adsorption of a disperse dye was investigated after reduction clearing with various conditions.

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