| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of producing magnetic fine particles without using porous fine particles and without using an expensive apparatus, when fine particles are subjected to magnetization.SOLUTION: In a method for producing magnetic fine particles, a magnetic fine particle dispersion liquid is dried, the magnetic fine particle dispersion liquid being obtained by reacting fine particles coated with a metal oxide such as iron oxide or the like with a magnetic body having an ionic functional group (a cationic functional group or an anionic functional group) on a surface thereof by means of a wet method.SELECTED DRAWING: None |
