| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner for developing an electrostatic charge image that has excellent low-temperature fixability, excellent high-temperature offset resistance, a wide fixability range, excellent storage stability and that excellently suppresses stripe irregularity on a developing roller. <P>SOLUTION: A toner for developing electrostatic charge image comprises a binder resin. The binder resin comprises a crystalline resin and a non-crystalline resin. The crystalline resin contains a composite resin including: a condensation polymerization-based resin component obtained by condensation polymerization of an alcohol component containing an aliphatic diol having 2 to 10 carbon atoms and a carboxylic acid component containing an aromatic dicarboxylic acid compound; and a styrenic resin component. In the composite resin, the weight ratio of the condensation polymerization-based resin component to the styrenic resin component (condensation polymerization-based resin component/styrenic resin component) is 65/35 to 98/2. The weight ratio of the crystalline resin to the non-crystalline resin (crystalline resin/non-crystalline resin) is 70/30 to 98/2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
