TONER, DEVELOPER, AND IMAGE FORMING DEVICE Russian patent published in 2017 - IPC G03G9/08 

FIELD: printing industry.

SUBSTANCE: claimed group of inventions includes a toner, a developer and an imaging device. The toner has a temperature vitrification [Tg1st (toner)] from 20°C to 50°C. Glass transition temperature [Tg1st (toner)] is measured when the first heated in differential scanning calorimetry (DSC) toner, in which insoluble in tetragidrofurane (THF) substance toner has a temperature vitrification [Tg2nd (unreduced in THF)] from -40°C to 30°C. Glass transition temperature [Tg2nd (unreduced in THF)] measured in the second heat in differential scanning calorimetry (DSC) insoluble in THF, which is insoluble in THF stuff has a dynamic elastic modulus at 100°C [G'(l00) (insoluble in THF)] from 1,0×10⁶ PA to 1,0×10⁷ Pa, and in which the ratio of the dynamic modulus of elasticity of a substance insoluble in THF at 40°C [G'(40) (insoluble in THF material)] to the dynamic modulus of elasticity of a substance insoluble in THF at 100°C[G'(l00) (insoluble in THF substance)], expressed by the formula [[G'(40) (insoluble in THF substance)]/[G'(l00) (Insoluble in THF substance)]] is 3,5×10 or less.

EFFECT: toner is excellent not only in the ability to consolidate and low-temperature thermal stability during storage, but also in a glossy image.

10 cl, 5 dwg, 3 tbl