| 摘要 |
PURPOSE:To prevent the sticking of a toner to the surface of a photosensitive body by fixing polyvinylidene fluoride powder on the surfaces of the toner particles contg. a resin and colorants. CONSTITUTION:When a fixing system applied is a heat oven system or a heat roll system, a thermoplastic resin or a resin mixture having >40 deg.C glass transition point is used as a resin contained in toner particles. When the fixing system is a pressure fixing system, a pressure sensitive resin or a resin mixture having >40 deg.C glass transition point is used. The amount of the resin for fixing contained in the toner is >=35wt% of the total amount of the toner. The amount of a pigment for color control and a dye is <10wt% of the total amount of the toner. The toner particles are blended with 0.02-5wt% polyvinylidene fluoride powder basing on the total amount of the toner particles to fix the powder on the surfaces of the toner particles. The sticking of the resulting toner to a photosensitive body and the damage of the photosensitive body can be prevented. |
