| 摘要 |
PURPOSE:To obtain the titled toner having a less tendency for generating a stain due to rubbing of a surface of the titled toner by incorporating a polyester resin, a colorant and an additive having <=0.3 coefficient of dynamic friction to the titled toner. CONSTITUTION:The coefficient of dynamic friction on the surface of an image of a magnetic toner contg. a polyester resin is about 0.4. As said value is slightly high, the coefficient of the friction of the image is reduced so as to stand against a pollution due to rubbing of the surface of an image by incorporating a substance having a low coefficient of friction to the polyester toner. As the additive, one may use a wax such as a polyethylene and a paraffin wax, and a fluorine contg. polymer such as a polytetrafluoroethylene, etc. Said additive is incorporated 6-15wt% to the titled toner on the weight basis of said toner. The titled toner has <=0.3 coefficient of dynamic friction. |
