| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner having a high offset temperature and excellent fluidity and preservability although it has a low fixing temperature to deal with a fast printing. SOLUTION: The toner is a core-shell toner having a core layer and a shell layer. The core layer contains a coloring agent, a binder resin and a natural gas-based Fischer-Tropsch wax as a release agent showing an endothermic peak temperature of 70 to 100 deg.C measured by a differential scanning caloritmeter and having <=3.5μm volume average particle size. The shell layer consists of a polymerized material having the glass transition temperature higher than that of the binder resin which constitutes the core layer.</p> |
