CHARGE CONTROL AGENT AND TONER USING SAME

摘要

[Problems] To provide a charge control agent which contains no heavy metal component, therefore, does not adversely affect the environment and, besides, is colorless or is light-colored lending itself well to be applied to colored toners, and is little affected by the environmental conditions, and exhibits the effect of imparting high charging power even when it is used for polymerized toners. [Means for Solution] The charge control agent comprises a barbituric acid derivative represented by the following general formula (1):
wherein R 1 to R 8 are alkyl groups, cycloalkyl groups or aryl groups,
V, W, X, Y and Z are carbon atoms or nitrogen atoms, at least two of which being carbon atoms, and
p, q, r, s and t are the numbers of 0 or 1.