1. School of Forest Sciences, Faculty of Science and Forestry, University of Eastern Finland, FI-80101 Joensuu, Finland
2. Swedish Centre for Resource Recovery, Faculty of Textiles, Engineering and Business, University of Borås, SE-50190 Borås, Sweden
3. Natural Resources Institute Finland, FI-80100 Joensuu, Finland
4. Department of Textile Technology, Faculty of Textiles, Engineering and Business, University of Borås, SE-50190 Borås, Sweden
5. FSCN Research Centre, Mid Sweden University, SE-85170 Sundsvall, Sweden