Title:
METHOD FOR PRODUCING FINE CELLULOSE FIBER-CONTAINING DRY SOLIDS, FINE CELLULOSE FIBER-CONTAINING DRY SOLIDS, FINE CELLULOSE FIBER REDISPERSION LIQUID
Document Type and Number:
Japanese Patent JP2020117718
Kind Code:
A
Abstract:
To provide fine cellulose fiber-containing dry solids excellent in redispersibility in a solvent such as water and a simple method for producing fine cellulose fiber-containing dry solids, and to provide a fine cellulose fiber redispersion liquid which is excellent in transparency and viscosity characteristics.SOLUTION: Fine cellulose fiber-containing dry solids according to one aspect of the present invention contain fine cellulose fibers having a content of introduced sulfur atoms derived from sulfo groups of 0.5 mmol/g or more. A method for producing fine cellulose fiber-containing dry solids of the present invention includes a step of drying at a relatively low temperature under low pressure conditions. A fine cellulose fiber redispersion liquid of the present invention includes the fine cellulose fiber redispersion liquid and water and is excellent in redispersibility from the viewpoint of transparency, viscosity characteristics and precipitation characteristics.SELECTED DRAWING: Figure 1
Inventors:
HIASA SHO
Application Number:
JP2020066966A
Publication Date:
August 06, 2020
Filing Date:
April 02, 2020
Export Citation:
Assignee:
MARUSUMI PAPER CO LTD
International Classes:
C08B5/14; D21H11/18; D21H15/02
Attorney, Agent or Firm:
Hiroshi Nakai
Shigeki Okamoto
Shigeki Okamoto