Chapter 2 — full chapter
2.1.2 Recovered cellulose from paper/textile waste streams (clean separation systems)
Cellulose can be recovered from paper waste and cellulose-rich textile waste, such as cotton or other plant-based fibres. After contaminants are removed, the recovered cellulose can be dissolved and processed into regenerated fibres, films or other materials (Lenzing, n.d.-a; Textile Exchange, 2023).
This route can reduce dependence on virgin wood pulp and extend the life of existing cellulose resources. It is especially relevant for textile-to-textile innovation because it connects waste management, fibre regeneration and new material production (Lenzing, n.d.-a; Lenzing, n.d.-b).
The main challenges are clean separation, feedstock quality and the need for specialised processing technologies. If the input stream contains too many blends, finishes, dyes or contaminants, the quality of the regenerated material may be affected.