| 摘要 |
PURPOSE:To obtain a toner good in electrostatic chargeability and sharp in developed color by incorporating a pigment treated with an oil-soluble dye in toner. CONSTITUTION:A toner contains a pigment treated with an oil-soluble dye. 100pts.wt. of the pigment is treated with 0.05-20pts.wt. of the oil-soluble dye in the following methods: Dry blending of both; the dye is dispersed and dissolved in a solvent and the pigment is immersed in the soln., and then the solvent is removed; the pigment and said soln. of the dye are spray-dried at the same time in a spray dryer; etc. |
