Pure chitosan multifilament yarns made using a semi-industrial pilot scale wet-spinning process with ionic liquids

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung


The ionic liquid 1-ethyl-3-methyl-imidazolium acetate (EMIMOAc) is used to develop a wet-spinning process for the manufacturing of chitosan multifilament yarns on a semi-industrial pilot scale. Commercial chitosans of different qualities, properties, and deacetylation degree ≤85% are used to prepare of spinning dopes with solids content of 6.0–8.5 wt.% using EMIMOAc as a solvent. The viscometric properties are characterized by rheological tests. The manufacturing of the pure chitosan multifilament yarns of different fineness and filament count from the prepared spinning dopes is performed on a pilot wet-spinning plant. The obtained yarn properties are evaluated by optical (scanning electron microscope, light microscope), structural (infrared spectroscopy, X-ray diffraction), and textile-physical characterization. Chitosan multifilament yarns with high performance, tenacities of ~20–26 cN tex−1 and textile processability in weaving, knitting and braiding processes are manufactured in this work.


FachzeitschriftJournal of applied polymer science
PublikationsstatusVeröffentlicht - 16 Apr. 2024

Externe IDs

ORCID /0000-0003-0423-4093/work/160048691
ORCID /0000-0003-4924-5060/work/160048728


Ziele für nachhaltige Entwicklung


  • biomaterials, biopolymers and renewable polymers, chitosan, fibers, polysaccharides, wet spinning