Toner
A toner comprises a toner particle containing an amorphous polyester, wherein the amorphous polyester contains an amorphous polyester 1, the amorphous polyester contains a tin compound and a titanium compound, a Sn/Ti abundance ratio between Sn and Ti in the amorphous polyester according to x-ray fluorescence analysis is 20/80 to 80/20, and a weight-average molecular weight Mw1 of the amorphous polyester 1 according to measurement by gel permeation chromatography (GPC) is Mw1<7,000.
1. A method of producing a toner comprising a toner particle containing an amorphous polyester, the toner production method comprising:
a step of melt-kneading the amorphous polyester; and
a step of pulverizing the obtained kneaded material, wherein
the amorphous polyester contains an amorphous polyester 1,
the amorphous polyester further contains an amorphous polyester 2,
the amorphous polyester 1 contains either one of a tin compound and a titanium compound,
the amorphous polyester 2 contains the other of the tin compound and the titanium compound,
in the step of melt-kneading the amorphous polyester, both the amorphous polyester 1 and the amorphous polyester 2 are melt-kneaded,
a Sn/Ti abundance ratio between Sn and Ti in the amorphous polyester according to x-ray fluorescence analysis is 20/80 to 80/20,
a weight-average molecular weight Mw1 of the amorphous polyester 1 according to measurement by gel permeation chromatography (GPC) is Mw1<7,000,
the tin compound does not contain a Sn—C bond, and
the titanium compound has an alkanolamine-derived residue.
2. The method according to claim 1 , wherein the titanium compound is titanium dihydroxybis(triethanolaminate).
3. The method according to claim 1 , wherein the tin compound is tin alkylcarboxylate.
4. The method according to claim 1 , wherein the titanium compound is titanium dihydroxybis(triethanolaminate), and
the tin compound is tin alkylcarboxylate.