Method and apparatus for defibrillating cellulose fibres

摘要

The current invention relates to a method and apparatus for defϊbrillating cellulose fibres, achieved through single or multiple passes of raw or pre-processed cellulose fibre slurry, with a preferred solid material consistency range of 35% to 55% through twin-screw fibre processing machines. During this processing operation fibre slurries are optionally further enhanced with additional fibre and mineral additives to optimise performance of the material for specific end purposes. The hyper defibrillated fibre slurry produced can be defined as one reaching a Schopper-Riegler (SR) level between 75 SR and 85 SR and/or producing a pressed, dried board with a density of preferably at least 850 kg/m.