| 摘要 |
<p>PURPOSE:To obtain a toner high in resistance to offset and smearing by incorporating a styrene-acrylic copolymer resin, a colorant, and a specified offset preventive agent. CONSTITUTION:This toner comprises at least the styrene-acrylic copolymer resin as a binder resin, the colorant, and the offset preventive agent having a melt viscosity of 0.5-10cPs at 140 deg.C and a penetration of <=3.0dmm, and as this agent, polyeolefin wax, such as polyethylene or polypropylene waxes, alone or a combination of >=2 kinds, can be used, optionally together with any of the conventional offset preventive agents.</p> |
