Method for producing charge control agent and toner
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United States of America Patent
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May 21, 2013
Grant Date -
Apr 29, 2010
app pub date -
Feb 26, 2009
filing date -
Oct 23, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention discloses a method for producing a charge control agent and a toner containing the charge control agent. The preparation method includes the technical proposal that in aqueous medium, an azo compound is reacted with a salicylic acid chromium complex, which is used as a complexing agent to synthesize a specific azo chromium complex. The preparation method is characterized by complex synthesis engineering. The toner of the invention includes a charge control agent obtained from the method described herein. Provided is a method for obtaining a charge control agent and a toner with excellent chargeability in that no flying or fogging is observed, even during image formation at high printing speeds. The toner is relatively free from the influences of variations in the environmental temperature and humidity, which ensures stable image printing with high picture quality for long periods of time.
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