Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner
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United States of America Patent
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Apr 29, 2008
Grant Date -
Jun 15, 2006
app pub date -
Jan 10, 2006
filing date -
Jul 23, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The method of manufacturing toner for electrophotography includes the steps of dissolving or dispersing a toner composition containing a resin and a coloring agent into polymerizable monomers to provide a solution or a dispersed system, emulsifying the solution or the dispersed system with a first surface active agent in an aqueous medium to provide an emulsion, and polymerizing the polymerizable monomers in the emulsion to obtain toner. A second surface active agent having polarity opposite to polarity of the first surface active agent is added after the emulsifying step.
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