Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic charge image developing toner comprising:

• toner particles that contain a binder resin and resin particles,
• wherein each of a loss modulus G″5 (150) of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 150° C. and a strain of 5% and a loss modulus G″50 (180) of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 180° C. and a strain of 50% is 1× 103 Pa or more and 1×104 Pa or less,
• a relationship between a loss modulus G″5 (t1) of the electrostatic charge image developing toner at a first temperature t1 in a temperature range of 150° C. or higher and 180° C. or lower and a strain of 5% and a loss modulus G″50 (t2) of the electrostatic charge image developing toner at a second temperature t2 higher than the first temperature t1 in the temperature range of 150° C. or higher and 180° C. or lower and a strain of 50% satisfies the following Formula (1) in a case of a temperature difference (t2-t1) between the first temperature t1 and the second temperature t2 is 15° C. or higher,
• 1<G″5(t1)/G″50(t2)<3.0, Formula (1)
• in a case where dynamic viscoelasticity of the resin particles is measured at a heating rate of 2° C./min, a storage modulus G′ of the resin particles in a range of 30° C. or higher and 180° C. or lower is 1×105 Pa or more and 5×107 Pa or less,
• a content of the resin particles is 2% by mass or more and 30% by mass or less with respect to a total mass of the toner particles,
• the resin particles are crosslinked resin particles,
• the crosslinked resin particles are styrene-(meth)acrylic resin particles, and
• the binder resin contains a polyester resin.