METHOD FOR CONCENTRATING FIBRIL CELLULOSE AND FIBRIL CELLULOSE PRODUCT

摘要

A method for concentrating fibril cellulose comprises - subjecting aqueous fibril cellulose at a concentration of not higher than 5% to pressure filtration where water is removed from the fibril cellulose by applying pressure to the aqueous fibril cellulose, and - continuing the pressure filtration continued to an end point where over 50% of the water initially present is removed from the fibril cellulose. The pressure filtration is performed at a temperature of 30°C or higher.