| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polyester toner showing preferable non-offset property in a heated and fixed part in a second printing stage for double-face printing. SOLUTION: The polyester toner contains the following binder resin and has 130 to 180 deg.C softening temperature Tend and 58 to 68 deg.C glass transition temperature Tg. The binder resin consists of 50 to 90 mass% of a crosslinked polyester resin (A) having 1 to 60 mass% methylethylketone-insoluble content, 195 to 235 deg.C softening temperature Tend and 65 to 72 deg.C glass transition temperature and containing 1 to 10 mass% of polyethylene wax and/or polypropylene wax, and 10 to 50 mass% of a non-crosslinked polyester resin (B) having <=120 deg.C softening temperature Tend and 45 to 55 deg.C glass transition temperature.</p> |
