| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner binder which realizes toner with both low temperature fixability and heat resistant and moist heat resistant storage stability, and is excellent in charge stability and durability.SOLUTION: A toner binder contains a polyester resin (X) and an ester compound (A). Constitutional units of the polyester resin (X) are a monocarboxylic acid (B), a polycarboxylic acid (C) and a polyalcohol (D). The ester compound (A) is a monoester compound (A1) represented by the general formula (1) and/or a diester compound (A2). The content of (A) based on the total weight of (A) and (X) is 0.01 to 3 wt.%.</p> |
