| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner excellent in durability and fixability. SOLUTION: The toner contains aggregation particles having resin particle agglomerates. The resin particle agglomerates included in the aggregation particles have a shape obtained by fusing resin particles to each other or bringing resin particles into contact with each other with boundary surfaces, wherein the viscoelasticity of the boundary surfaces is larger than that of surfaces free of contact of resin particles. The toner has a network structure in which the resin particle agglomerates combine with each other only at surfaces. Such a toner is prepared by preparing resin particles using a monomer having a functional group such as a carboxyl group or an epoxy group, and by bonding functional groups in the resin particles to each other through a network forming agent such as a crosslinking agent, a reactive monomer, a reactive polymer, a polymerizing agent, an auxiliary polymerizing agent or a polymerization initiator. COPYRIGHT: (C)2005,JPO&NCIPI
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