| 摘要 |
PURPOSE:To obtain a compsn. for a toner which permits low-pressure fixing, has a long pot life and obviates the generation of filming on a drum surface, carrier staining, offsetting of a fixing roller, etc. by incorporating a resultant product formed by adjusting a mixture contg. prescribed two kinds of resins to a heat treatment in the presence of a radical generator. CONSTITUTION:The resultant product obtd. by subjecting the mixture contg. two kinds of the resins; the resin A having 15-50dyne/cm critical surface tension at 20 deg.C and release property imparting effect and the resin B having 0.1-50kg/mm<2> compressive modulus and having fixability imparting effect to the heat treatment in the presence of the radical generator is incorporated into the resin compsn. for the toner. A polyvinyl fluoride, 'Teflon(R)', PE, and others are used for the resin A. Paraffin wax, polyamide resin, ethylene/vinyl acetate copolymer, and others are used for the resin B. A polymn. initiator used for the polymn. of monomers is preferable as the radical generator. The content thereof is preferably 0.05-10wt% by the weight of the resin mixture. |
