| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner for electrostatic image formation that has blocking resistance immediately before application of heat during fixing and exhibits steep softening property upon application of heat so as to allow low-temperature fixing, that is, has both low-temperature fixability and blocking resistance that are inconsistent with each other.SOLUTION: A toner for electrostatic image formation contains at least colorant, a binder resin, and a mold release agent. The binder resin contains an amorphous polyester resin (A) and a crystalline polyester resin (B) at a mass proportion of 10≤B/(A+B)×100<50; and the TMA compressive deformation amount (TMA%) of a toner base to be obtained at 50°C under the condition of relative humidity of 90% is 10% or less. |
