| 摘要 |
<p>PROBLEM TO BE SOLVED: To produce an electrophotographic toner capable of giving a colored image effective in information processing by bonding two or more kinds of colored particles each consisting of a bonding resin and a colorant but different from each other in color tone. SOLUTION: Two or more kinds of colored particles each consisting of a bonding resin and a colorant but different from each other in color tone are bonded to obtain the objective electrophotographic toner. The bonding resin is not especially limited and polyester resin, epoxy resin or a styrene- acrylic copolymer may be used but polyester resin is preferably used because the resultant toner is liable to ensure both color forming property and durability. The colored particles are bonded by a bonding method under mechanical stirring, a bonding method by heating, a bonding method using an adhesive component or a combination of such methods.</p> |
