Sustainability Framework

Next steps to improve the use of waste cotton for lyocell process to reduce the environmental impact of textile industry

Saal B
Mittwoch, 11.09.2024, 13:30 - 13:55 Uhr

The presentation shows how SaXcell technology can convert post-consumer cotton waste into high-quality and high-value Lyocell types of fibres. The presentation will also focus on the eco-design processes to reduce the use of water and energy for the Second generation of SaXcell technology. Also, showing SaXcell fibre data and future challenges ahead.

SaXcell BV (www.saxcell.nl) is a spin-off company of Saxion University of Applied Science located in Enschede in the Netherlands. SaXcell, an abbreviation of Saxion cellulose, is a regenerated virgin textile fibre (Lyocell type) made from chemically recycled post-consumer cotton waste.

Chemical recycling should exist next to mechanical recycling to enable an efficient recycling process of cotton waste. The SaXcell technology transfers post-consumer waste into a high-quality cellulose pulp designed as a drop-in pulp for the Lyocell wet spinning process. The production of such a high-quality pulp is not possible without a thorough understanding of the wet spinning process and the properties of cotton waste. The window of operation for pulp properties in the Lyocell process appears to be quite narrow, e.g. related to the required degree of polymerisation of the cellulose and the polyester content. Typical properties of the SaXcell pulp will be presented as well as some fibre properties after wet spinning. In this context, SaXcell has signed a cooperation agreement with Birla to produce SaXcell fibres at a higher scale. On the other hand, SaXcell has started to move to a new location in Enschede for its Pilot plant, as well as a projected upscale Small Scale Production Plant with a new and more sustainable technology and a Cellulose Research Centre. The presentation will conclude with a view of the future developments at SaXcell BV.