| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner binder to provide a dry-process toner excellent in low temperature fixability, hot offset resistance, and having a proper charge amount and superior circumstantial stability. SOLUTION: A polystyrene resin B of which a dielectric loss tangent (tanδ) is 1.5×10-3 or less, of which a temperature T1 where a storage elastic tic modulus gets to 1×105 dyne/cm2 is 140 deg.C or more, and of which a temperature T2 where viscosity comes to 1×104 poise is 90-140 deg.C, and a polyester A are compounded.</p> |
