Method and apparatus for manufacturing microfibrillated cellulose fiber
AssigneeJapan Absorbent Technology Institute
InventorsMigaku Suzuki, Yutaka Hattori
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Abstract
A method for producing a microfibrillated cellulose, which comprises subjecting a slurry containing a pulp having a solids concentration of 1 to 6 wt % to the treatment with a disc refiner repeatedly ten times or more, to thereby prepare a microfibrillated cellulose having a number average fiber length or 0.2 mm or less and an amount of water hold of 10 mL/g or more, the amount representing the volume of water capable of being held by a unit weight of the cellulose fiber. The method allows the production of a microfibrillated cellulose having high quality with stability and with good efficiency.
Claims12
A method for the manufacture of microfibrillated cellulose fibers of 0.2 mm or less in terms of number average fiber length and of 20 mL/g or more in terms of water retention indicating the volume of water which can be retained by a unit weight of cellulose fibers, by subjecting slurry containing pulp of solid component concentration of 1 to 6 wt % to treatment with a disc refiner at 10 times or more.
Dependencies are inferred from the claim text.