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Title:
METHOD FOR EVALUATING CELLULOSE NANOFIBER DISPERSION, CELLULOSE NANOFIBER AQUEOUS DISPERSION, AND CELLULOSE NANOFIBER-CONTAINING FOOD, COSMETIC, AND RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/030392
Kind Code:
A1
Abstract:
Provided is method for evaluating a cellulose nanofiber (CNF) dispersion, the method including: (1) a step of preparing 1.0 mass% of a CNF aqueous dispersion; (2) a step of adding a coloring material into the CNF aqueous solution and stirring with a vortex mixer; (3) a step of sandwiching a film of the coloring material-containing CNF aqueous dispersion between two glass plates such that said film has a thickness of 0.15 mm; (4) a step of observing, with a microscope, the film of the coloring material-containing CNF aqueous dispersion sandwiched between the two glass plates; (5) a step of sorting observed aggregates by size (diameter along major axis) thereof; and (6) a step of calculating a CNF dispersion index from the number of sorted aggregates and evaluating the dispersibility of the CNF aqueous dispersion.

Inventors:
FUJII Takeshi (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
IWAHORI Fumiko (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
YAMABE Kaori (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
NAKATANI Takeshi (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
SATO Shinji (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
KIMURA Koji (21-1, Oji 5-chome, Kita-k, Tokyo 02, 〒1140002, JP)
Application Number:
JP2017/028736
Publication Date:
February 15, 2018
Filing Date:
August 08, 2017
Export Citation:
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Assignee:
NIPPON PAPER INDUSTRIES CO., LTD. (4-1 Oji 1-chome, Kita-ku Tokyo, 02, 〒1140002, JP)
International Classes:
G01N21/27; A21D2/36; A23L5/00; A23L33/24; A61K8/73; A61Q1/00; A61Q5/00; A61Q11/00; B82Y30/00; B82Y35/00; C08L1/02; C08L21/00
Foreign References:
JP2014092551A2014-05-19
JP2008092914A2008-04-24
JP2008118988A2008-05-29
JP2014141658A2014-08-07
JP2012098086A2012-05-24
JP2005305724A2005-11-04
JP2014193959A2014-10-09
Attorney, Agent or Firm:
FUJIMOTO Yoshihiro (VerdyNOGIZAKA 2F, 14-7 Minamiaoyama 1-chome, Minato-k, Tokyo 62, 〒1070062, JP)
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