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Cellulose dissolution technique

Turning old clothes into new fashions, over and over again

Recycled textiles cellulose dissolution technique

Using a cellulose dissolution technique developed by the VTT, old, worn-out cotton clothing can be turned into new fibers for the textile industry. ​

​VTT Technical Research Centre of Finland Ltd – the leading research and technology company in the Nordic countries – is developing new smart technologies, profitable solutions and innovative services.

VTT´s dissolution technology is an environmentally friendly solution for turning discarded textiles into a new fiber source for the textile industry. Used textiles, not recyclable by other means, can replace cotton and man-made fibers with no compromise in quality.

The increasing demand for textile fiber cannot be met by existing supply. Using recycled textiles as a raw material will both fulfill demand and address waste reduction. VTT is repurposing the cellulose carbamate processes that we have used successfully to make environmentally friendly viscose-like fibers from wood pulp, recycled paper and board materials.

We now have a state-of-the-art wet-spinning pilot facility for the production of textile fibers.

VTT is currently coordinating a circular economy related project of the Finnish Funding Agency for Innovation (TEKES) known as The Relooping Fashion Initiative.
Why dissolution?

  • Improve the quality of waste textiles
  • Shiny look, silky to the touch, excellent drapability!
  • Reduce water use by 70%
  • 50% lower carbon footprint
  • No poisonous chemicals


Benefit from VTT´s proprietary technology:

  • Scalable: proven to work at industrial scale
  • Plug-in solution for synthetic fiber factories
  • Leverage VTT´s multidisciplinary capability
  • Licensing opportunities


Business is circular!

Join the loop! Partner with VTT!


Textile fibers from recycled materials
Ma, Yibo; Määttänen, Marjo; Särkilahti, Airi; Harlin, Ali; Hummel, Michael; Sixta, Herbert
Scientific conference for Smart and functional textiles, Well-Being, Thermal comfort in clothing, Design, Thermal Manikins and Modelling, Ambience14 & 10i3m, 7 - 9 September 2014, Tampere, Finland (2014)

From recycled fibers to textile fibers
Asikainen, Sari; Määttänen, Marjo; Valta, Kyösti; Sivonen, Eino; Särkilahti, Airi; Kangas, Petteri; Harlin, Ali
23rd IFATCC Congress, 8 - 10 May 2013, Budapest, Hungary (2013), 11 p.

Sustainable Nonwoven Materials by Foam Forming Using Cellulosic Fibres and Recycled Materials
Heikkilä, Pirjo; Jetsu, Petri; Kinnunen, Karita; Määttänen, Marjo; Valta, Kyösti; Harlin, Ali
Proceedings of the 7th Aachen-Dresden International Textile Conference. Aachen, 28 - 29 Nov. 2013. RWTH; TU (2013)