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Fibers and Polymers

, Volume 5, Issue 1, pp 39–43 | Cite as

Effects of thermomigration on the washfastness of disperse dyes having different molecular size

  • Sung Dong Kim
  • Min Jung Kim
  • Byung Sun Lee
  • Kwon Sun Lee
Article

Abstract

Effects of chemical structure of disperse dyes applied to conventional and microdenier polyesters on the dyeing property and washfastness were studied. It was found that washfastness of dyed polyester fabric is closely related to the degree of thermomigration of disperse dye during heatsetting. The bulky disperse dye, which was synthesized by substituting two acetoxy groups of C.I. Disperse Red 82 with two benzoxy groups, showed almost the same amount of absorbed dye by the microdenier polyester as C.I. Disperse Red 82, but the degree of thermomigration was low and subsequent washfastness was excellent. The high grade of washfastness of the bulky disperse dye might be caused by the increased dye-fiber interaction and the reduced mobility.

Keywords

Microdenier polyester Disperse dye Dyeing property Washfastness Thermomigration 

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Copyright information

© The Korean Fiber Society 2004

Authors and Affiliations

  • Sung Dong Kim
    • 1
  • Min Jung Kim
    • 1
  • Byung Sun Lee
    • 1
  • Kwon Sun Lee
    • 2
    • 1
  1. 1.Department of Textile Engineering, College of EngineeringKonkuk UniversitySeoulKorea
  2. 2.Ecological Dyeing and Finishing Technology TeamKITECHSiheung, GyunggiKorea

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