Process for producing toner, and apparatus for modifying surfaces of toner particles
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United States of America Patent
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Apr 15, 2008
Grant Date -
Jun 30, 2005
app pub date -
Dec 22, 2004
filing date -
Dec 26, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
In a toner production process having at least a kneading step, a pulverization step and the step of simultaneously carrying out a surface modification step and a classification step to obtain toner particles, the surface modification and the classification are simultaneously carried out using a batch-wise surface modifying apparatus having at least a cylindrical main-body casing, a classifying rotor, a surface modifying means having a dispersing rotor and a liner. The positional relationship between the dispersing rotor and the liner is set in an appropriate specific state so that toner particles having a sharp particle size distribution with less fine powder and having a high sphericity can be obtained in a good efficiency.
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