TONER FOR ELECTROPHOTOGRAPHY, METHOD OF IMAGE FORMATION AND TECHNOLOGICAL CARTRIDGE Russian patent published in 2018 - IPC G03G9/08 

FIELD: photography.

SUBSTANCE: present invention relates to a toner for use in electrophotography, image forming method and a process cartridge. Claimed group of inventions includes toner for electrography, method of forming an image, technological cartridge and printed material. Moreover, the toner for electrophotography contains a binder resin, release agent and a salt of a trivalent metal or a metal with a higher valence, the maximum value of the toner loss tangent at 95°C-115°C is 8 or more, when the viscoelasticity of the toner is measured, where the loss tangent is represented by the following formula: loss tangent (tanδ) = elastic loss loss modulus (G'') / modulus of elastic strain accumulation (G').

EFFECT: technical result consists in providing a toner for electrophotography which reaches a high gloss, which is close to the gloss of photos in a wide range of fixing temperatures, and can achieve all of the extremely excellent low-temperature fastening ability, high resistance to hot scrapping and excellent storage stability.

10 cl, 5 tbl, 7 dwg