TONER, METHOD OF PRODUCING TONER AND IMAGE FORMING METHOD Russian patent published in 2015 - IPC G03G9/08 G03G9/87 C08G63/91 

FIELD: chemistry.

SUBSTANCE: invention relates to toner and a method for production thereof, as well as an image forming method. The toner contains polymer binder having an ester bond, a dye substance and a parting additive. The toner contains base particles, each base particle containing polymer binder and a parting additive. The parting additive includes a first C30-C50 alkyl monoester compound and a second C30-C50 alkyl monoester compound. The number of carbon atoms in the first C30-C50 alkyl monoester compound is different from the number of carbon atoms in the second C30-C50 alkyl monoester compound. The amount of the first C30-C50 alkyl monoester compound is the highest, and the amount of the second C30-C50 alkyl monoester compound is the second-highest or is the same as the amount of the first C30-C50 alkyl monoester compound. The amount of the first C30-C50 alkyl monoester compound is 44 wt % or higher, but less than 50 wt % with respect to the parting additive. The amount of the second C30-C50 alkyl monoester compound is 10 wt % or higher, but less than 50 wt % with respect to the parting additive.

EFFECT: obtaining toner with excellent low-temperature fixation, a wide range of fixation temperature, excellent separability even at high fixation temperatures, excellent transfer efficiency and low contamination of equipment.

10 cl, 5 tbl, 1 dwg, 31 ex