| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner having excellent high-temperature offset resistance and blocking resistance, suppressing generation of a fixing void and showing good low-temperature fixability. <P>SOLUTION: A resin for a toner is obtained by polymerizing a vinyl monomer in the presence of an unsaturated polyester resin. The unsaturated polyester resin shows a first endothermic peak (P1) and a second endothermic peak (P2) in a DSC curve measured by a differential scanning calorimeter. The peak temperature of the first endothermic peak (P1) is 55°C or higher and 75°C or lower, while the peak temperature of the second endothermic peak (P2) is 80°C or higher and 120°C or lower. <P>COPYRIGHT: (C)2012,JPO&INPIT |
