| 摘要 |
<p>PURPOSE:To obtain a toner excellent in light resistance, decoloring property, preservation stability or the like by incorporating a specific near infrared absorbing dyestuff and a specific decoloring agent in a binder resin having a specific temp. of glass transition point and by providing a specific organic particulate and/or a specific inorganic particulate on the surface of a toner particle. CONSTITUTION:The binder resin contains the near infrared absorbing dyestuff expressed by formula I or II and the decoloring agent expressed by formula III and has 30-35 deg.C glass transition point and the organic particulate and/or inorganic particulate having >=60 deg.C anti-blocking temp. are provided on the surface of the toner particle. In the formula, X is halogen ion, perchlorate ion or the like, each of R<1>-R<4> is independently hydrogen atom, hydrocarbon group or the like, Y is a cation having absorption property in near infrared region. Each of R<5>-R<8> is independently alkyl group, allyl group or the like and at least one of them is 1-12C alkyl group. Each of R<9>-R<12> is independently hydrogen atom, alkyl group or the like.</p> |
