| abstract |
A polyester resin for toner, wherein an acid component ofnthe polyester comprises (1) disproportionated rosin and (2)nterephthalic acid and/or isophthalic acid, an alcohol componentnof the polyester comprises (3) glycidyl ester of tertiary fattynacid and (4) an aliphatic diol containing from 2 to 10 carbon atoms,nand a cross-linking component of the polyester comprises anpolycarboxylic acid having three or more carboxyl groups and/orna polyol having three or more hydroxyl groups, with the molar rationof the acid component (1) to the acid component (2), (1)/(2), beingnfrom 0.2 to 0.6 and the molar ratio of the alcohol component (3)nto the alcohol component (4), (3)/(4), being from 0.05 to 0.4.nA toner for developing an electrostatic charge image contains thenpolyester resin for a toner (binder resin), a colorant and a chargencontrol agent. Further, the invention also relates to annimage-forming method using the toner for developing annelectrostatic charge image. |