Invention Grant
- Patent Title: White toner and method for producing same
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Application No.: US16815355Application Date: 2020-03-11
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Publication No.: US11029617B2Publication Date: 2021-06-08
- Inventor: Yuya Chimoto , Kouichirou Ochi , Hayato Ida
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2019-050161 20190318
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/097 ; G03G9/09 ; G03G9/087

Abstract:
A white toner comprising a toner particle including a binder resin, an inorganic white pigment, and a polyvalent metal salt compound, wherein the inorganic white pigment has an acidic group at a surface thereof; an amount of the inorganic white pigment in the toner particle is 10% to 50% by volume; the polyvalent metal salt compound is a specific compound; an absolute value of the difference between an SP value (J/cm3)1/2 of the binder resin and that of the polyvalent metal salt compound is 0.0 to 6.0; and an amount of the polyvalent metal salt compound, an amount of a polyvalent metal, the amount of the inorganic white pigment, and an amount of the acidic group at a surface of the inorganic white pigment satisfy a specific relationship.
Public/Granted literature
- US20200301301A1 WHITE TONER AND METHOD FOR PRODUCING SAME Public/Granted day:2020-09-24
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