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Title:
METHOD FOR PRODUCING HYDROPHILIZED CELLULOSE FIBER
Document Type and Number:
Japanese Patent JP2013096039
Kind Code:
A
Abstract:

To provide a method for producing a hydrophilized cellulose fiber, in which a 6-position carbon in a glucose unit of a raw material cellulose fiber can be sufficiently oxidized to a carboxyl group, when 4-hydroxy-TEMPO used as a catalyst.

A method for producing a hydrophilized cellulose fiber comprises: (1a) a reaction step of oxidizing a cellulose fiber in a reaction solution including 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl, an oxidizer and a co-catalyst; and (1b) a step of adding further 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl into a reaction solution after reaction of the step (1a) to oxidize the cellulose fiber furthermore.


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Inventors:
TANAKA CHIAKI
YUI MIYA
ISOGAI AKIRA
Application Number:
JP2011241906A
Publication Date:
May 20, 2013
Filing Date:
November 04, 2011
Export Citation:
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Assignee:
GUNZE KK
International Classes:
D06M13/355; C08B3/20; D01F2/00; D06M13/388; D06M101/06
Domestic Patent References:
JP2011046793A2011-03-10
JP2011046793A2011-03-10
Foreign References:
WO2011024807A12011-03-03
WO2011074301A12011-06-23
WO2011024807A12011-03-03
WO2011074301A12011-06-23
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office



 
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