| 摘要 |
<p>PURPOSE:To provide a capsulated toner ensuring satisfactory rise of triboelectric charge, having stable positive chargeability, excellent in anti-offsetting property in a heat press fixing system using a hot roll, fixable at a low temp. and capable of stably forming many clear images almost free from a surface stain. CONSTITUTION:This capsulated toner for heat press fixation consists of a heat meltable core material contg. at least a thermoplastic resin and a colorant and each shell formed so as to coat, the surface of the core material and the principal component of the shell is, an amorphous polyester having tert. amine groups. When this capsulated toner is produced, each shell is formed by coating the surface of the above-mentioned core material with the amorphous polyester having tert. amine groups by an in situ polymn. method.</p> |
