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US 2019/0196347 A1Published application
White toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
AssigneeFuji Xerox Co., Ltd.
InventorsKana YOSHIDA, Shinya SAKAMOTO
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Abstract
A white toner for electrostatic image development includes toner particles containing a binder resin, which contains at least a crystalline polyester resin and an amorphous polyester resin, and a white pigment. The loss tangent tan δ at 30° C. determined by dynamic viscoelasticity measurement is 0.2 or more and 1.0 or less.
Claims13
A white toner for electrostatic image development, the toner comprising:
- toner particles containing a binder resin, which contains at least a crystalline polyester resin and an amorphous polyester resin, and a white pigment,
- wherein a loss tangent tan δ at 30° C. determined by dynamic viscoelasticity measurement is 0.2 or more and 1.0 or less, and
- wherein the white toner is formed by using a power feed addition method,
- the power feed addition method comprising the use of a quality of tanks and a pump,
- wherein the pump is linked to at least one of the tanks in the plurality of tanks, and
- the pump is used to adjust a feed start time and/or feed rate of the crystalline polyester resin to at least one of the tanks in the plurality of tanks.
3 more elements
Dependencies are inferred from the claim text.