The manufacturing method of a microfibrous cellulose containing dispersion liquid

SUBJECT of the Invention This invention makes it a subject to provide the manufacturing method of the microfibrous cellulose containing dispersion liquid which has the filtration treatment process excellent in the filtration efficiency. PROBLEM to be solved The fiber width of this invention is 1000 nm or less， It is a manufacturing method of a fibriform cellulose containing dispersion liquid including the process of carrying out the filtration process of the dispersion liquid containing the fibriform cellulose which has a substituent derived from phosphorus oxo-acid group or phosphorus oxo-acid group， Comprising: At the process of carrying out the filtration process， it is related with the manufacturing method of the manufacturing method of the fibriform cellulose containing dispersion liquid in which at least one selected from a filter medium and a filter aid is used. SELECTED DRAWINGS Absence