| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner composition which has an enlarged fixing temperature range accompanying the improvement of the low-temperature fixability, and superior anti-blocking property and stability in the charged state.SOLUTION: A toner binder constituted of a linear polyester resin (A) and a nonlinear polyester resin (B) is characterized in that the (A) has a peak top molecular weight of ≤2,500, a glass transition temperature [Tg] of 50-80°C, wherein the relationship between the [Tg] and the flow softening point [Tm] is [Tm]-[Tg]≤35°C, and an acid value of 0-20 (mgKOH/g). |
