| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner that can achieve both low-temperature fixability and heat-resistant storage property in high levels.SOLUTION: An electrophotographic toner comprising at least a binder resin is provided. The toner shows a maximum peak temperature of heat of fusion in a range from 50°C to 70°C, in a temperature elevation period measured with a differential scanning calorimeter (DSC), and a heat quantity of fusion of 10 J/g or more and 30 J/g or less. When a free induction decay curve of the toner obtained by the measurement by a pulse NMR method is divided into two curves respectively derived from a hard component and a soft component constituting the toner, a spin-spin relaxation time T(100) of the soft component at 100°C is 20 ms or more, and a proton ratio H(100) of the soft component is 0.2 or more.</p> |
