Dyeing behavior of 100% poly(trimethylene terephthalate) (PTT) textiles

Yiqi Yang, Shiqi Li, Houston Brown, Paul Casey

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The suitable dye classes and dyeing conditions such as time, temperature, and pH for poly(trimethylene terephthalate) (PTT) textiles were examined. Colorfastness to laundering, crocking, light, etc. was evaluated. The most suitable dye class for 100% PTT was disperse dyes. Unlike poly(ethylene terephthalate) (PET), the material could be dyed under atmospheric conditions without using carriers. PTT dyed at 100C had a similar shade depth to PET dyed at 130C with the same dyebath compositions. In addition, no acidic pH adjustment was required due to the low dyeing temperature. A broad pH range is suitable for PTT dyeing with disperse dyes. The temperature and pH flexibility of PTT dyeing is an advantage not only for dyeing 100% PTT, but also for dyeing blends or mixtures with PTT.

Original languageEnglish (US)
Pages (from-to)50-54
Number of pages5
JournalTextile Chemist and Colorist and American Dyestuff Reporter
Issue number3
StatePublished - Nov 1999
Externally publishedYes


  • Dyeing
  • PET
  • PTT
  • Poly(ethylene terephthalate)
  • Poly(trimethylene terephthalate)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics


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