| 摘要 |
<p>PURPOSE:To obtain the toner having the excellent coloring property and discoloring property by adhering the specified near infrared ray absorbable color to the surface of a grain for toner. CONSTITUTION:This toner is mainly composed of the binding resin and the near infrared ray absorbable color expressed by a formula I or a formula II and the discoloring agent expressed by a formula III, and the near infrared ray absorbable color expressed by a formula I or a formula II is adhered to the surface of a grain for toner. In the formulas, X represents halogen ion, perchloric acid ion, PF6-, SbF6-, OH-, sulfonic acid ion or BF4-; R<1>-R<4> respectively represent hydrogen atom, hydrocarbon group or hydrocarbon group including atom; Y represents cation having the absorbing characteristic in a near infrared ray area; R<5>-R<8> respectively represent alkyl group, aryl group, allyl group, aralkyl group, alkenyl group or the like, and at least one of R<5>-R<8> represents alkyl group having 1-12 of carbon; R<9>-R<12> respectively represent hydrogen atom, alkyl group, aryl group, allyl group, aralkyl group and alkenyl group or the like.</p> |
