| 摘要 |
<p>Provided is a toner binder having excellent charging characteristics and blocking resistance, and an increased range of fixing temperatures when used as a toner. The present invention is a toner binder containing a polyester resin (P) comprising one or more types of polyester resins obtained by polycondensation of a carboxylic acid component (x) and an alcohol component (y), wherein at least one type (P1) of (P) contains 50 to 95 mol% of a aliphatic diol (y1) having a carbon number of 2 to 4 in the alcohol component (y), and (P) satisfies expressions (1) and (2). 11.5 ‰¤ SP value cal / cm 3 1 / 2 of P ‰¤ 13.0 5.2 ‰¤ HLB value by Oda method of P ‰¤ 7.1</p> |
