Back to results
US 2019/0196348 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.
InventorsTsuyoshi MURAKAMI, Tsutomu FURUTA
Life of this patent
Estimating the term…
Abstract
A white toner for electrostatic image development includes white toner particles containing a binder resin and a white pigment. When in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied. 0.900≤C50≤1.000 Formula (1) 1.00≤C50/C10≤1.13 Formula (2)
Claims13
A white toner for electrostatic image development, the toner comprising:
- white toner particles containing a binder resin and a white pigment,
- wherein when in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied,
- 0.900≤C50≤1.000 Formula (1)
- 1.00≤C50/C10≤1.13. Formula (2)
1 more element
Dependencies are inferred from the claim text.