TONER

摘要

Provided is a toner having excellent long-term storage stability and exhibiting both low-temperature fixability and uniform gloss in high-speed printing. A toner has a toner particle that contains a crystalline polyester resin A, an amorphous polyester resin B and a colorant, wherein the crystalline polyester resin A has a polyester molecular chain having a nucleating agent segment at the terminal end thereof, and an SP value Sa ((cal/cm3)1/2) of the crystalline polyester resin A ranges from 9.00 to 11.50, and the amorphous polyester resin B has a specific functional group.

主权项

1. A toner comprising a toner particle that contains a crystalline polyester resin A, an amorphous polyester resin B and a colorant,
(1) wherein the crystalline polyester resin A has a polyester molecular chain having a nucleating agent segment at the terminal end thereof, and has an SP value (Sa) ((cal/cm3)1/2) ranging from 9.00 to 11.50, and (2) the amorphous polyester resin B has at least one functional group selected from the group consisting of (a) to (c): (a) an aliphatic hydrocarbon group having 8 to 50 carbon atoms; (b) a functional group of which an aliphatic alcohol having 8 to 50 carbon atoms has been bound by condensation; and (c) a functional group of which an aliphatic carboxylic acid having 9 to 51 carbon atoms has been bound by condensation.