| 摘要 |
PURPOSE:To manufacture the titled toner exhibiting superior characteristics against successive repeated uses, by dispersing a constituent opposite in polarity to toner into a part of a binder resin, and another constituent same in polarity as the toner into the other part of the binder resin, and using a mixture of them. CONSTITUTION:A mixture (A) obtd. by dispersing a constituent, such as carbon black, opposite inpolarity to toner into a part of a binder resin, and a mixture (B) obtd. by dispersing a constituent, such as metal-contg. dye, same in polarity as the toner into the rest part of the toner are prepared separately and then mixed, or the mixture (A) and the rest of the binder resin and the constituent same in polarity as the toner are all mixed and dispersed. The toner thus obtained is superior in triboelectric characteristics and suitable for color electrophotography. |
