Toner for electrophotography and developer
Toner for electrophotography contains toner base particles containing a binder resin, a colorant, and a wax, resin particles containing a binder resin and a wax, but substantially not containing a colorant, and an external additive that is externally added to the toner base particles and the resin particles, with a mean domain diameter of the wax in the resin particles being larger than a mean domain diameter of the wax in the toner base particles.
1. Toner for electrophotography, comprising:
toner base particles containing a binder resin, a colorant, and a wax;
resin particles containing a binder resin and a wax, but substantially not containing a colorant; and
an external additive that is externally added to the toner base particles and the resin particles,
wherein a mean domain diameter of the wax in the resin particles is larger than a mean domain diameter of the wax in the toner base particles.
2. Toner for electrophotography according to claim 1 , wherein a content ratio of the wax in the resin particles is higher than a content ratio of the wax in the toner base particles.
3. Toner for electrophotography according to claim 1 , wherein the external additive contains silica particles and titanium oxide particles.
4. Toner for electrophotography according to claim 1 , wherein a content amount of the toner base particles with respect to a total of 100 parts by mass of the toner base particles and the resin particles is 75 to 95 parts by mass.
5. Toner for electrophotography according to claim 1 , wherein a mean domain diameter of the wax in the toner base particles is 0.1 to 2 μm, and a mean domain diameter of the wax in the resin particles is 0.3 to 5 μm.
6. Developer comprising the toner for electrophotography according to claim 1 and carrier.