| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for manufacturing a toner with which toner particles can be highly conglobated, the toner that hardly causes fogging in an image, and an yield of the toner is increased. SOLUTION: The process for producing the toner has a step of obtaining the toner particles by simultaneously performing a surface modification step of performing surface modification of the particles and a classification step of performing the classification for the purpose of removing the fine powder and super-fine powder included in the resultant finely pulverized matter by using a batch-wise surface modification apparatus, in which when a straight line extending from a central position S1 of a loading pipe in a direction of loading a raw material is denoted by L1 and a straight line extending from a central position O1 of the fine powder discharging pipe in a direction of discharging fine powder and super-fine powder is denoted by L2 in a top face projection drawing of the surface modification apparatus, an angleθformed between the lines L1 and L2 is in a range of 210 to 330°with reference to the direction in which a classification rotor rotates. COPYRIGHT: (C)2005,JPO&NCIPI
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