Toner

A toner comprising a toner particle having a core-shell structure comprising a core and a shell phase on a surface of the core;

• the core comprising a binder resin, comprising a crystalline resin A;
• and
• the shell phase comprises a resin B comprising in one molecule a segment b1 originating from a crystalline resin B1 and a segment b2 originating from a crystalline resin B2, wherein
• the toner satisfies formulae (1) and (2) when measured with a differential scanning (DSC)
• 50. 0≦Tt≦80.0 (1)
• 0. 00≦ΔHT′t−3/ΔH≦0.20 (2)
• where Tt (° C.) represents a peak temperature of an endothermic peak P1 originating from the crystalline resin A during a first temperature ramp up process,ΔH (J/g) represents an endothermic quantity originating from the crystalline resin A from a temperature 20.0° C. lower than T′t to a temperature 10.0° C. higher than T′t when T′t (° C.) is a peak temperature of an endothermic peak P2 originating from the crystalline resin A during a second temperature ramp up process, and ΔHT′t−3(J/g) represents an endothermic quantity originating from the crystalline resin A from a temperature lower 20.0° C. than T′t to a temperature 3.0° C. lower than T′t , and
• the binder resin, the crystalline resin B1. and the crystalline resin B2 satisfy formulae (4) and (5),
• 10.0≦TB2 −TA≦30.0 (4)
• −5.0≦TA−TB1≦5.0 (5)
• where TA (° C.) represents a peak temperature of an endothermic peak originating from the crystalline resin A during a first temperature ramp up process in measurement of the binder resin with a DSC, TB1(° C.) represents a peak temperature of an endothermic peak during a first temperature ramp up process in measurement of the crystalline resin B1 with a DSC, and TB2 (° C.) represents a peak temperature of an endothermic peak during a first temperature ramp up process in measurement of the crystalline resin B2 with a DSC).