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Dyeing Properties of PTT Fiber (2)- Effect of Solvent Treatment on Dyeing and Physical Properties of PTT Fiber -

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2003, 15(4), pp.8-16
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

이두환 1 Dong Seok Jeong 2 김호정 3 Muncheul Lee 1

1부산대학교
2동의대학교
3경성대학교

Accredited

ABSTRACT

Poly(trimethylene terephthalate)(PTT) fiber was pretreated with organic solvent/water solutions of various compositions. The organic solvents used in this experiment were benzyl alcohol, n-buthanol, and N,N-dimethylformamide(DMF). Density of the fibers were investigated as a measure of crystallite region. The dye uptake increased in the order of pretreatment with hot water < untreated < 5% benzyl alcohol < 100% benzyl alcohol < 90% benzyl alcohol; hot water < untreated ≒ 5% butanol < 100% butanol < 90% butanol; hot water ≒ 5% DMF < untreated < 90% DMF < 100% DMF. The dye uptake increases with increase of crystallinity. It seems likely that the recrystallization process during the pretreatment with organic solvent/water solutions leads to an increase in the microvoid and then a large increase in the dye uptake. Also the dyeing rate increased and the dyeing transition temperature decreased with the pretreatments. The results obtained are corresponds with the plasticization of the fiber structure formed during the pretreatment.

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