Abstract
A review on charge control agent which is one of the additives used in the toner of electrophotographic copier or printer is described. Some informations are obtained through the synthesis of metal complex azo dyes for charge control agent. High ability charge control agent for negative charge toner is doveloped manufactured commercially.We introduce Crystal Violet Lactone (CVL) and 2-Anilno-3-methyl-6-diethylamino fluoran (N-102) as representative examples of colorformer which is used for pressure sensitive copying paper and thermosensitive recording paper. Synthetic method of these compoumds are reviewed with authors several technical comments.
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