LIQUID DEVELOPER

摘要

A liquid developer includes an insulating liquid and toner particles which are dispersed in the insulating liquid and contain a resin and a coloring agent. The resin contains a first resin which is a crystalline urethane-modified polyester resin resulting from increase in chain length of a component derived from a polyester resin by a compound containing an isocyanate group. The toner particles have a peak in a DSC curve in temperature increase at 55° C. or higher, have a peak in the DSC curve in temperature decrease at 30° C. or higher, and have a storage elastic modulus at 80° C., not lower than 1×105 Pa and not higher than 1×107 Pa.

主权项

1. A liquid developer, comprising:
an insulating liquid; and toner particles which are dispersed in said insulating liquid and contain a resin and a coloring agent, said resin containing a first resin which is a crystalline urethane-modified polyester resin resulting from increase in chain length of a component derived from a polyester resin by a compound containing an isocyanate group, said toner particles having a peak in a DSC curve in temperature increase at 55° C. or higher, having a peak in the DSC curve in temperature decrease at 30° C. or higher, and having a storage elastic modulus at 80° C., not lower than 1×105 Pa and not higher than 1×107 Pa.