Invention Grant
US09012120B2 Production process of toner for electrostatic image development 有权
用于静电图像显影的调色剂的生产工艺

Production process of toner for electrostatic image development
Abstract:
The production process is a process for producing a toner for electrostatic image development. The process has an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion with fine particles of a binder resin dispersed in an aqueous medium, and an aggregation terminating step of adding an aggregation terminating agent into the dispersion. The aggregation terminating agent is composed of a compound having at least one of a structure (1) represented by a formula (1) and a structure (2) represented by a formula (2). In the formulae (1) and (2), R1 to R9 each independently represent a hydrogen atom, a hydroxy group or an organic group. At least one of R1 and R4 or at least one of R5 and R6 represents a hydroxy group.
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