| 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 when the coloring agents exclusive of black are used for the coloring agents with a fewer production stages by forming resin film layers by using the coloring agents and resin fine particles on the surfaces of internal nucleus particles and further to allow the production of the toner by uniformly and easily controlling the resin film layers regardless of the compsn. and structure of the internal nucleus particles so that the toner having multilayered structures can be produced at a low cost. CONSTITUTION:Resin fine particles 6 contg. the coloring agents are produced by using raw materials consisting of a resin 2 and the coloring agents 3, etc. 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 7 to stick the resin fine particles 6 contg. the coloring agents, etc., to the surfaces thereof, by which the internal nucleus particles 8 externally added with the resin fine particles are produced. The internal nucleus particles 8 externally added with the resin fine particles are subjected to a film forming treatment 9 by bringing a solvent 4 dissolving the resin fine particles into contact therewith to form the resin film layers 10 by which the toner 11 formed with the resin films contg. the coloring agents is finally produced. |
