Title:
TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT AND TONER SET FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT
Document Type and Number:
Japanese Patent JP2022185190
Kind Code:
A
Abstract:
To provide toner for electrostatic latent image development and a toner set for electrostatic latent image development which suppress exposure of a white toner surface when white toner and chromatic toner are simultaneously used, suppress charge leakage and are excellent in the image quality without generation of transfer dirt.SOLUTION: Toner for electrostatic latent image development according to the present invention comprises at least: a toner base particle which contains a binder resin and a white pigment; and an external additive. As the external additive, the toner contains silica particles and satisfies the following relational expression (1). Relational expression (1): 0.70 Wh_Si(B)/Wh_Si(A)0.95. Wh_Si(A) expresses the Net intensity of the Si element that is measured by a wavelength dispersion type fluorescent X-ray analysis device and contained in the white toner for electrostatic latent image development. Wh_Si(B) expresses the Net intensity of the Si element that is measured by the fluorescent X-ray analysis device and contained in the white toner for electrostatic latent image development subjected to the ultrasonic dispersion processing in the water.SELECTED DRAWING: None
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Inventors:
UEDA JUNYA
MARUYAMA YOHEI
OBARA SHINYA
MARUYAMA YOHEI
OBARA SHINYA
Application Number:
JP2021092699A
Publication Date:
December 14, 2022
Filing Date:
June 02, 2021
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G03G9/08; G03G9/09; G03G9/097
Attorney, Agent or Firm:
Koyo International Patent Office
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