Toner

Details

Veröffentlichungs-Nr.

EP3709087

Aktenzeichen

EP20162097

Anmeldetag

10. März 2020

Veröffentlichung

28. August 2024

Erteilung

28. August 2024

Rechtsraum

EP

IPC

G03G9/097

Abstract

A toner comprising: a toner particle; and an external additive, wherein the external additive includes spherical silica particles and hydrotalcite particles, a number average particle diameter Da of the spherical silica particles is from 10 nm to 40 nm, a circularity of the spherical silica particles is at least 0.80, and the toner satisfies formula (1) below: Ga × 1 − Ka / 100 / Gb × 1 − Kb / 100 ≥ 0.050 <img class="EMIRef" id="675506545-ia01" /> wherein Ga: a content of the spherical silica particles with respect to 100 parts by mass of the toner particle; Gb: a content of the hydrotalcite particles with respect to 100 parts by mass of the toner particle; Ka: a fixing ratio (%) of the spherical silica particles on a surface of the toner particle; and Kb: a fixing ratio (%) of the hydrotalcite particles on the surface of the toner particle.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete