TONER PROCESSING APPARATUS AND MANUFACTURING METHOD OF TONER

• Main Authors: HOTTA YOJIRO, FUJIMOTO MASAMI, MIZUGUCHI TAKUYA, TERAUCHI KAZUO, SHIOZAWA MOTOHIDE, NAKA TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

PROBLEM TO BE SOLVED: To provide a toner processing apparatus and a manufacturing method of toner with which transition of an external additive can hardly occur even when a large particle-size external additive is added to the surface of a toner particle to improve durability.SOLUTION: There is provided a toner processing apparatus that performs processing on a processing target object containing toner particles and an external additive, the toner processing apparatus comprising: a processing chamber; a cooling jacket; means that moves the processing target object in a radial direction; and a rotor including a rotor main body and a processing part that collides with the processing target object to process the processing target object, in which the means that moves the processing target object in the radial direction is a rotor including plate-like blades; and the rotor including the plate-like blades is a rotor that generates a wind with a wind speed of 8.0 m/sec. or more and 20.0 m/sec. or less in the radial direction when rotating so that the peripheral speed of an outermost end of the plate-like blade becomes 44 m/sec.SELECTED DRAWING: None 【課題】耐久性向上のためにトナー粒子の表面に大粒径外添剤を添加しても外添剤移行が発生し難いトナー処理装置及びトナーの製造方法を提供する。【解決手段】トナー粒子及び外添剤を含む被処理物の処理を行うトナー処理装置であって、処理室と、冷却ジャケットと、被処理物を放射方向に移動させる手段と、回転体本体と、前記被処理物に衝突して前記被処理物を処理する処理部と、を有する回転体とを有し、前記被処理物を放射方向に移動させる手段は、板状の羽根を有する回転体であり、前記板状の羽根を有する回転体は、前記板状の羽根の最外端部が周速４４ｍ／秒となるように回転するとき、放射方向に、風速８．０ｍ／秒以上２０．０ｍ／秒以下の風を生じる回転体であるトナー処理装置。【選択図】なし