CHARGEABLE RESIN FINE PARTICLE

摘要

PROBLEM TO BE SOLVED: To obtain the subject fine particles capable of uniformly electrifying chargeable fine particles having a small particle diameter by friction and providing a bright image, etc., by supporting surface resin fine particles through a bi- or a polyvalent metal on the surfaces of core material resin fine particles. SOLUTION: The fine particles are composed of at least (A) core material resin fine particles, (B) a bi- or a polyvalent metal supported in the vicinity of surfaces of the component A and (C) surface resin fine particles bonded through the component B to the component A and have a structure in which the component A is present in the interior and the surfaces of the component A are coated with the component C through the component B. Respective polar groups are preferably present in the vicinity of the particle surfaces of the components A and C. The particle diameter of the component C is preferably smaller than that of the component A. A metal derived from one selected from an inorganic salt and an organic chelate is preferred as the component B. Thereby, the formation, etc., of an image without any fog can be carried out with an image-forming apparatus.