Title:
セルロースナノファイバー分散液の評価方法
Document Type and Number:
Japanese Patent JP7150603
Kind Code:
B2
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:
Kenji Fujii
Fumiko Iwahori
Kaori Yamabe
Takeshi Nakatani
Shinji Sato
Koji Kimura
Fumiko Iwahori
Kaori Yamabe
Takeshi Nakatani
Shinji Sato
Koji Kimura
Application Number:
JP2018533490A
Publication Date:
October 11, 2022
Filing Date:
August 08, 2017
Export Citation:
Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
International Classes:
G01N21/27; A23G1/40; A23L7/10; A23L29/262; A61K8/73; A61Q19/00; B82Y30/00; B82Y40/00; C08B3/00; C08B11/12; C08B15/00; C08B15/04; C08L1/02; C08L21/00
Domestic Patent References:
| JP2008092914A | ||||
| JP2008118988A | ||||
| JP2004041119A | ||||
| JP2014141658A | ||||
| JP2014092551A |
Foreign References:
| WO2014181560A1 | ||||
| WO2015107995A1 |
Attorney, Agent or Firm:
Yoshihiro Fujimoto