| 摘要 |
PURPOSE:To provide a toner which is hardly affected by temp. and humidity by incorporating the metallic salt of a salicylic acid or salicylic acid deriv. as a polarity controlling agent into the toner. CONSTITUTION:This toner is incorporated therein with the salicylic acid metallic salt and/or the metallic salt of the salicylic acid deriv. as an electric charge controlling agent. The metallic salt of the salicylic acid or salicylic acid deriv. to be used as the charge controlling agent is expressed by the formula. The ratio of the metallic salt to the toner is about 0.1-10pts.wt., more preferably 0.5-7pts.wt. per 100pts.wt. binder resin and the ratio of the coloring agent to the toner is about 0.5-10pts.wt., more preferably 1-7pts.wt. per 100pts.wt. binder resin. The use of the metallic complex of the salicylic acid or salicylic acid deriv. as the charge controlling agent is known but is not effective with this toner. |
