| 摘要 |
PURPOSE:To provide the performance having good fixability and heat resistant preservable property in combination by fixing resin particles which have thermoplasticity and resin particles which have heat resistance, which particles have respectively specific average particle sizes and are imparted with electrostatic chargeability. CONSTITUTION:The resin particles A which are imparted with the electrostatic chargeability and have 0.05 to 2mum average particle size and thermoplasticity and the resin particles B which have 0.05 to 10mum average particle size and the heat resistance are fixed to the surfaces of colored particles consisting of a binder resin and coloring agent. The resin particles A have a high flocculating property and, therefore, have poor dispersion in the colored particles if the average particle size thereof is below 0.05mum. The particles larger than 2mum are hardly uniformly stickable to the colored particles. The resin particles B are partly exposed onto the resin particles A fixed onto the surfaces of the colored particles by fixing the resin particles B of the grain size larger than the grain size of the resin particles A to the surfaces of the colored particles, by which the heat resistant preservable property is improved. The good fixability and heat resistant preservable property are obtd. in this way. |
