Toner
AssigneeCanon Kabushiki Kaisha
InventorsTaiji Katsura, Masatake Tanaka, Dai Nozaki, Shintaro Kawaguchi
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Abstract
A toner comprising a toner particle and an external additive, wherein the toner particle comprises a core comprising a resin A and a shell comprising a resin B on the surface of the core, the external additive comprises a hydrotalcite particle A, fluorine and aluminum are present in an inner part of the hydrotalcite particle A in line analysis in STEM-EDS mapping analysis of the toner, and a concentration ratio of the number of fluorine atoms relative to aluminum atoms (F/Al) in the hydrotalcite particle A, as determined by primary component mapping of the hydrotalcite particle A in the STEM-EDS mapping analysis of the toner, is 0.01 to 0.60.
Claims14
A toner, comprising:
- a toner particle and an external additive;
- the toner particle comprising a core comprising a resin A, and having a shell comprising a resin B on the surface of the core;
- the external additive comprising a hydrotalcite particle A;
- and
- fluorine and aluminum being present in an inner part of the hydrotalcite particle A in line analysis in STEM-EDS mapping analysis of the toner, wherein
- a concentration ratio of the number of fluorine atoms relative to aluminum atoms (F/Al) in the hydrotalcite particle A is 0.04 to 0.30, as determined by primary component mapping of the hydrotalcite particle A in the STEM-EDS mapping analysis of the toner.
Dependencies are inferred from the claim text.