发明名称 |
Method of manufacturing toner and toner |
摘要 |
A method of manufacturing a toner including adding an oil phase comprising an organic solvent in which a binder resin, a coloring agent and a releasing agent are dissolved or dispersed and an aqueous phase to an emulsification device equipped with a stirrer, continuously dispersing or emulsifying the oil phase and the aqueous phase in the emulsification device equipped with a stirrer to form a liquid dispersion or emulsion comprising oil phase particles, transporting the liquid dispersion or emulsion to a tank, removing the organic solvent from the liquid dispersion or emulsion followed by drying to form mother toner particles, wherein the releasing agent has been preliminarily prepared to have a dispersion diameter of from 0.15 to 0.7 µm before the releasing agent is contained in the oil phase, a circumferential speed of the stirrer is from 15 to 25 m/s, and a volume particle diameter (DV') of the oil phase particles at an exit of the emulsification device to the tank and a volume average particle diameter (Dv) of the oil phase particles in the tank satisfy the following relationships: 3.0 ‰¤ DV¹ ‰¤ 6.0 4.0 ‰¤ Dv ‰¤ 7.5 1.0 ‰¤ Dv - Dv¹ ‰¤ 3.0 |
申请公布号 |
EP1998226(A1) |
申请公布日期 |
2008.12.03 |
申请号 |
EP20080157298 |
申请日期 |
2008.05.30 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
HATTORI, MIZUKI;HIGUCHI, SHINZO;KADOTA, TAKAHIRO;MISAWA, DAISUKE;TAKAHASHI, HIROSHI;USAMI, TOSHIHIKO;MIYAKAWA, MASASHI |
分类号 |
G03G9/08;G03G9/087 |
主分类号 |
G03G9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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