	US 12,271,151 B2
	Toner and method for manufacturing toner
Yukihiro Abe, Chiba (JP); Takeshi Hashimoto, Ibaraki (JP); Kazuki Murata, Tokyo (JP); Miki Ueda, Tokyo (JP); and Hayato Ida, Ibaraki (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 11, 2022, as Appl. No. 17/654,461.
Claims priority of application No. 2021-045545 (JP), filed on Mar. 19, 2021.
Prior Publication US 2022/0299902 A1, Sep. 22, 2022
Int. Cl. G03G 9/08 (2006.01); C08F 220/18 (2006.01); C08G 63/16 (2006.01); C08G 63/21 (2006.01); G03G 9/087 (2006.01); G03G 9/097 (2006.01)

CPC G03G 9/08711 (2013.01) [C08F 220/1818 (2020.02); C08G 63/16 (2013.01); C08G 63/21 (2013.01); G03G 9/081 (2013.01); G03G 9/0819 (2013.01); G03G 9/0821 (2013.01); G03G 9/0825 (2013.01); G03G 9/08755 (2013.01); G03G 9/09733 (2013.01)]

10 Claims

1. A toner comprising a toner particle, comprising:

a binder resin comprising a first resin and a second resin; and

a release agent;

the first resin being a crystalline resin having a melting point Tp of 50 to 90° C.; and

the second resin being an amorphous resin, wherein

a cross section of the toner particle observed by a transmission electron microscope has a matrix-domain structure composed of a matrix comprising the first resin and domains comprising the second resin,

the matrix is 35 to 70 area % of a total area of the cross section of the toner particle, and

where a longest direction of each of the domains is taken as a longitudinal direction and an arbitrary reference axis is set, a standard deviation of an angle of the angles formed by the reference axis and the longitudinal directions of the domains is at most 25°.