| 摘要 |
PURPOSE:To improve the dispersibility of a carbon black by uniformly and finely dispersing wax into the colored fine particles in the production of the colored fine particles formed by adding the wax thereto in order to improve the offset resistance and electrostatic charge characteristic thereof. CONSTITUTION:The wax is dispersed in the form of fine particles into the kneaded compsn. obtd. by kneading 100 pts.wt. carbon black, 50 to 200 pts.wt. polymer A having at least one kind of the functional groups selected from a group consisting of a aziridine group, oxazoline group, N-hydroxyl alkylamide group, epoxy group, and thioepoxy group, 1 to 100 pts.wt. wax at 60 to 200 deg.C and at least a part of the polymer A is grafted in the carbon black. Such kneaded compsn. is uniformly dispersed into a polymerizable polymer and the polymerizable compsn. obtd. in such a manner is suspended into an aq. medium and is polymerized. |
