Upcycling of cellulosic textile waste with bacterial cellulose via Ioncell® technology

Currently the textile industry relies strongly on synthetic fibres and cotton, which contribute to many environmental problems. Man-made cellulosic fibres (MMCF) can offer sustainable alternatives. Herein, the development of Lyocell-type MMCF using bacterial cellulose (BC) as alternative raw materia...

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Bibliographic Details
Published in:International journal of biological macromolecules 2024-06, Vol.271 (Pt 1), p.132194, Article 132194
Main Authors: A.G.S. Silva, Francisco, Schlapp-Hackl, Inge, Nygren, Nicole, Heimala, Senni, Leinonen, Anna, Dourado, Fernando, Gama, Miguel, Hummel, Michael
Format: Article
Language:English
Subjects:
Bacteria
Bacterial cellulose
Cellulose - chemistry
Ionic liquid
Ionic Liquids - chemistry
Lyocell spinning
Man-made cellulose fibres
Mechanical properties
Textile Industry
Textiles
Viscose recycling
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Summary:Currently the textile industry relies strongly on synthetic fibres and cotton, which contribute to many environmental problems. Man-made cellulosic fibres (MMCF) can offer sustainable alternatives. Herein, the development of Lyocell-type MMCF using bacterial cellulose (BC) as alternative raw material in the Ioncell® spinning process was investigated. BC, known for its high degree of polymerization (DP), crystallinity and strength was successfully dissolved in the ionic liquid (IL) 1,5-diazabicyclo[4.3.0]non-5-enium acetate [DBNH][OAc] to produce solutions with excellent spinnability. BC staple fibres displayed good mechanical properties and crystallinity (CI) and were spun into a yarn which was knitted into garments, demonstrating the potential of BC as suitable cellulose source for textile production. BC is also a valuable additive when recycling waste cellulose textiles (viscose fibres). The high DP and Cl of BC enhanced the spinnability in a viscose/BC blend, consequently improving the mechanical performance of the resulting fibres, as compared to neat viscose fibres. [Display omitted]
ISSN:0141-8130
1879-0003
1879-0003
DOI:10.1016/j.ijbiomac.2024.132194