METHOD FOR PRODUCING POLYSACCHARIDE NANOFIBER DISPERSION, AND POLYSACCHARIDE NANOFIBER DISPERSION PRODUCED BY THE PRODUCTION METHOD

摘要

The purpose of the present invention is to provide a method for producing a polysaccharide nanofiber dispersion at a low cost in a simpler manner. A method for producing a polysaccharide nanofiber dispersion is employed, which comprises: a step of swelling and/or partially dissolving a polysaccharide contained in a polysaccharide-containing raw material using a solution containing a tetraalkylammonium acetate represented by formula (1) and an aprotic polar solvent; and a step of separating the swollen and/or partially dissolved polysaccharide. In the formula, R1, R2, R3 and R4 independently represent an alkyl group having 3 to 6 carbon atoms.