Toner and method for producing toner

A toner comprising:

• a toner particle containing a resin component and a wax;
• and
• an inorganic fine particle on the surface of the toner particle,
• wherein, in a cross section of the toner particle, domains containing the wax are observed, and when among the domains, domains having a major diameter of 10-300 nm are defined as domains S, an occupation area percentage of which a ratio of a total sum of areas occupied by the domains S in a region from a surface of the toner particle to a depth of 600 nm in the cross section with respect to an area of the region, is 3.0-15.0%, and
• wherein the inorganic fine particle contains strontium titanate.

A method for producing a toner comprising the steps of:

• (i) forming, in an aqueous medium, a particle containing a wax and a polymerizable monomer;
• (ii) obtaining a dispersion liquid including a toner particle that contains the wax and a resin component obtained by polymerizing the polymerizable monomer contained in the particle;
• (iii) maintaining the dispersion liquid at Ta+15 (° C.) to Ta+35 (° C.) where Ta denotes the crystallization peak temperature of the wax;
• (iv) cooling the dispersion liquid to Ta−35 (° C.) to Ta−20 (° C.) from Ta+15 (° C.) to Ta+35 (° C.), with a cooling rate of 40.0° C./min to 200.0° C./min;
• (v) annealing the dispersion liquid by maintaining at Ta−35 (° C.) to Ta−20 (° C.) for 30 min or more;
• (vi) removing the toner particle from the dispersion liquid;
• and
• (vii) externally adding inorganic fine particle to the toner particle removed at Ta−35 (° C.) to Ta−20 (° C.), wherein the inorganic fine particle contains a fine particle A having a volume resistivity of 1.0×103 to 3.0×105 Ω·cm, and having a relative permittivity εr of 100 or more.