| 摘要 |
PURPOSE:To easily produce the toner forming images which are sharp regardless of a relatively small content of coloring agents and have good transparency particularly with a fewer production stages and further to produce the toner having excellent functions and multilayered structures at a low cost. CONSTITUTION:Resin fine particles 2 are added into a solvent which does not dissolve the resin fine particles 2 to execute solvent dispersion 6 and a particle mixture consisting of the coloring agents 3, etc., is added thereto to produce the resin fine particles 8 stuck with the coloring agents. The internal nucleus particles 5 are then produced by using raw materials consisting of a binder resin 1, etc. The internal nucleus particles 5 are then subjected to an external addition treatment 6 to stick the resin fine particles 3 stuck with the coloring agents, etc., to the surfaces thereof, by which the internal nucleus particles 7 externally added with the resin fine particles are produced. The internal nucleus particles 7 externally added with the resin fine particles are subjected to a film forming treatment 8 by bringing a solvent 4 dissolving the resin fine particles into contact therewith to form the resin film layers 12, by which the final toner 13 formed with the resin films contg. the coloring agents is produced. |
