Title:
COPPER-CARRYING CARBOXYMETHYLATED CELLULOSE FIBER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/071306
Kind Code:
A1
Abstract:
Copper-carrying carboxymethylated cellulose fibers according to the present invention are obtained by causing carboxymethylated cellulose fibers having an average fiber diameter of 1 μm or more to hold copper particles or copper ions such that the contained amount of the copper particles or copper ions becomes 40 mg/g or more. The concentration of the CM cellulose fibers in a mixture when causing same to hold copper is set to 20 mass% or more. Alternatively, when causing the fibers to hold copper, a copper sulfate aqueous solution is used. The obtained copper-carrying carboxymethylated cellulose fibers have deodorizing properties, anti-microbial properties, anti-viral properties, and anti-allergenic properties.
Inventors:
OISHI MASATOSHI (JP)
KUDO MADOKA (JP)
WASAI MASAFUMI (JP)
NAKATANI TORU (JP)
NINAGAWA KOJI (JP)
KUDO MADOKA (JP)
WASAI MASAFUMI (JP)
NAKATANI TORU (JP)
NINAGAWA KOJI (JP)
Application Number:
PCT/JP2021/035605
Publication Date:
April 07, 2022
Filing Date:
September 28, 2021
Export Citation:
Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
A61L9/01; C08B15/05; D01F2/28; D21H11/20; C08B11/12
Foreign References:
| JP2017149102A | 2017-08-31 | |||
| JP2017149103A | 2017-08-31 | |||
| JP2009201634A | 2009-09-10 | |||
| JP2003052746A | 2003-02-25 | |||
| JP2003002366A | 2003-01-08 | |||
| JP2000330326A | 2000-11-30 | |||
| JPH08333004A | 1996-12-17 | |||
| JPH07331596A | 1995-12-19 | |||
| JP2019199518A | 2019-11-21 | |||
| JP6755067B1 | 2020-09-16 | |||
| JP2015043940A | 2015-03-12 |
Other References:
AKADA, KAZUYA: "Cellulose material “Clean Sky” with deodorant and antibacterial function", CELLULOSE COMMUNICATIONS, vol. 7, no. 3, 1 January 2000 (2000-01-01), JP , pages 130 - 133, XP009535614, ISSN: 1342-730X
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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