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Chalmers Scientists Convert Agricultural Waste Into Textile Fibers

Soda pulping uses nontoxic lye to yield high-purity cellulose from oat husks and wheat straw in existing mills

Wheat straw could be one of the materials used to create sustainable clothing

Overview

  • Researchers at Chalmers University of Technology demonstrated that soda pulping can extract dissolving pulp from oat husks and wheat straw for textile use
  • Oat husks and wheat straw outperformed potato and sugar beet residues in purity and yield required for viscose and lyocell production
  • Unpublished trials have shown that wheat-straw pulp and press-cake from field grass can be spun into textile fibers, marking progress toward commercial scaling
  • The soda pulping process avoids harsh chemicals and complex wood-pulp pretreatments by relying solely on sodium hydroxide (lye)
  • Leveraging current pulp-and-paper infrastructure could enable large-volume production without new facilities, cutting environmental impact and adding value to farm waste