Title:
ナノセルロースを生産するための方法および装置
Document Type and Number:
Japanese Patent JP2014505802
Kind Code:
A
Abstract:
Described herein is nanocellulose produced by introducing a mixture of cellulose based fiber raw material and water through a refining gap, having a width smaller than 0.1 mm. In the refining gap, the fiber raw material is subjected to processing forces varying in the direction of introducing said mixture, by means of refining zones provided in the gap one after each other in the feeding direction, whereby the refining surfaces differ in surface patterning and/or surface roughness. The mixture of fiber raw material and water is guided past the refining surfaces in the feeding direction to different locations in the refining zone by by-pass channels provided in the stator. The width of the refining gap is maintained by the combined effect of the feeding pressure of the mixture of fiber raw material and water fed into the refining gap and the axial force of the rotor.
Inventors:
Gustavson, Helmer
Bjorkvist, Thomas
Koskinen, Timo
Nuopponen, Marx
Vehunia Inen, Ann Nikki
Bjorkvist, Thomas
Koskinen, Timo
Nuopponen, Marx
Vehunia Inen, Ann Nikki
Application Number:
JP2013546750A
Publication Date:
March 06, 2014
Filing Date:
December 30, 2011
Export Citation:
Assignee:
UPM-Kymmene Corporation
International Classes:
D21D1/22; B02C2/10
Attorney, Agent or Firm:
Keiichiro Saikyo