| 摘要 |
PURPOSE:To prevent the sticking of a toner surface of a photosensitive body by mixing the toner particles contg. a thermoplastic resin, colorants and polyvinylidene fluoride and polyvinylidene fluoride powder. 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 for fixing. The amount of the resin for fixing contained in a toner is >=35wt% of the total amount of the toner, and the amount of a pigment for color control and a dye is <10wt% of the total amount of the toner. The toner is composed of the resin, the colorants and polyvinylidene fluoride. Magnetic powder may be added to the toner to obtain a magnetic toner. The amount of the ferromagnetic body contained in the toner is 35-75wt% of the total amount of the toner. To the toner particles is added 0.02-5wt% polyvinylidene fluoride powder basing on the total amount of the toner particles, and they are mixed. The sticking of the resulting toner to a photosensitive body and the damage of the photosensitive body can be prevented. |
