| 摘要 |
<p>PURPOSE:To provide a toner excellent in kick-off of electrostatic charge, electric charge stability, spending resistance and environmental resistance and excellent also in color reproducibility and transparency as a toner using a calix arene compd. as a novel negative charge controlling agent contg. no heavy metal. CONSTITUTION:This toner for developing an electrostatic latent image contains a calix arene compd. represented by the general formula [where each of R<1> and R<2> is H, 1-5C alkyl or -(CH2)mCOOR3(R3 is H or lower alkyl and (m) is an integer of 1-3) and (n) is an integer of 1-7].</p> |
