Title:
MANUFACTURING METHOD OF CONCENTRATE OF CELLULOSE FINE FIBER DISPERSION, AND MANUFACTURING METHOD OF RESIN COMPOSITION
Document Type and Number:
Japanese Patent JP2023112485
Kind Code:
A
Abstract:
To provide a manufacturing method of a concentrate of a cellulose fine fiber dispersion, capable of manufacturing a concentrate with suppressed variation of solid fraction with low environmental load even when using a thin cellulose fine fiber dispersion.SOLUTION: Disclosed is a manufacturing method of a concentrate of a cellulose fine fiber dispersion, including a concentration process of deliquoring the cellulose fine fiber dispersion to obtain the concentrate, in which: an average fiber diameter of cellulose fine fibers in the cellulose fine fiber dispersion is 50-1000nm; in the concentration process, the cellulose fine fiber dispersion is subjected to deliquoring continuously at a processing speed of 1.0 kg-DS/h or over and under 45.0 kg-DS/h; in the concentration process, when measuring a solid fraction of the concentrate in a 10-times sampling, an average value of the solid fraction is 5 wt.% or over and 60 wt.% or under, and a CV value (standard deviation/average value) of the solid fraction is 0.001 or over and 0.300 or under.SELECTED DRAWING: Figure 3
Inventors:
YAMAZAKI NAGATAKE
Application Number:
JP2022014302A
Publication Date:
August 14, 2023
Filing Date:
February 01, 2022
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
D21H11/18; C08L1/00; C08L101/00; D01F2/00; D21C9/18
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Kazuhiro Nakamura
Miyako Saito
Shunsuke Sanma
Shinji Mihashi
Kazuhiro Nakamura
Miyako Saito
Shunsuke Sanma