| abstract |
A process for pretreating reclaimed cotton fibres to be used in the production of moulded bodies from regenerated cellulose, characterized by effective metal reduction and adjustment of the degree of polymerization and brightness, including a metal removing stage and an oxidative bleaching stage of the reclaimed cotton fibres or pulp produced thereof. Reclaimed cotton fibres treated according to the described process may be used alone or in blends with conventional dissolving pulp as raw material for the production of moulded bodies from regenerated cellulose. The process enables technically smooth, safe, and economically feasible spinning via the Viscose or Lyocell process, therefore, the current invention provides an efficient recycling pathway for cotton waste materials. |