Ioncell-F: ionic liquid-based cellulosic textile fibers as an alternative to viscose and Lyocell

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • University of Borås
  • Textile Museum of Borås

Abstract

Ioncell-F, a recently developed process for the production of man-made cellulosic fibers from ionic liquid solutions by dry-jet wet spinning, is presented as an alternative to the viscose and N-methylmorpholine N-oxide (NMMO)-based Lyocell processes. The ionic liquid 1,5-diazabicyclo[4.3.0]non-5-ene acetate was identified as excellent cellulose solvent allowing for a rapid dissolution at moderate temperatures and subsequent shaping into continuous filaments. The highly oriented cellulose fibers obtained upon coagulation in cold water exhibited superior tenacity, exceeding that of commercial viscose and NMMO-based Lyocell (Tencel®) fibers. The respective staple fibers, which have been converted into two-ply yarn by ring spinning technology, presented very high tenacity. Furthermore, the Ioncell yarn showed very good behavior during the knitting and weaving processes, reflecting the quality of the produced yarn. The successfully knitted and woven garments from the Ioncell yarn demonstrate the suitability of this particular ionic liquid for the production of man-made cellulosic fibers and thus give a promising outlook for the future of the Ioncell-F process.

Details

Original languageEnglish
Pages (from-to)543-552
Number of pages10
JournalTEXTILE RESEARCH JOURNAL
Volume86
Issue number5
Publication statusPublished - 1 Mar 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • cellulose, dry-jet wet spinning, fiber-yarn-fabric formation, Ioncell-F process, ionic liquid, N-methylmorpholine N-oxide-based Lyocell, viscose

ID: 1685667