Toner for developing electrostatic image and image forming method

摘要

A toner for developing an electrostatic image is composed of toner particles each containing at least a binder resin, a colorant, and a wax. The wax satisfies conditions of: (a) showing a maximum heat-absorption peak in a region of 50 - 130 <o>C on temperature increase on a DSC (differential scanning calorimeter) curve, and (b) giving a <13>C-NMR (nuclear magnetic resonance) spectrum showing a total peak area S in a range of 0 - 50 ppm, a total peak area S1 in a range of 36 - 42 ppm and a total peak area S2 in a range of 10 - 17 ppm satisfying: <MATH> <MATH> <MATH> <MATH> The wax satisfying the above-conditions has an appropriately branched long-chain structure and provides the toner with a good balance of good low-temperature fixability and anti-hot-temperature offset characteristic. <IMAGE>