COLOR TONER

摘要

A color toner which reconciles high-temperature storability with low-temperature fixing and comprises spherical particles having a small particle diameter and a narrow particle size distribution. The color toner comprises capsule type toner particles each constituted of a toner base particle (A) comprising a binder resin (a), a colorant, and a wax and a surface layer (B) formed on the surface of the particle (A) and comprising a resin (b) as a main component. The color toner is characterized in that (1) when temperature is plotted as abscissa and the common logarithm of a value obtained by dividing the loss modulus (G") of the color toner by the unit of the loss modulus is plotted as ordinate, then the resultant curve (1) has a maximum value at a temperature (Tp) and the Tp satisfies 40°C=Tp=60°C, (2) when the curve (1) is differentiated twice by temperature, the resultant curve (2) has a minimum value at a temperature (Ts) in the range of from Tp+10(°C) to Tp+40(°C), and (3) in the curve (1), the value of G"(Ts)/G"(Ts+5) is larger than 3.0.