| abstract |
PROBLEM TO BE SOLVED: To provide a toner for developing an electrostatic image having excellent fixability at low temperature and anti-blocking property of toner, and having less dependency on process speed of curling and fixing of double-sided printing on thin paper, and a method for producing the same Is to provide. SOLUTION: A crystalline resin and at least one non-crystalline resin are used as a binder resin, and in a dynamic viscoelasticity measurement by a sinusoidal vibration method, a measurement frequency is in a range of 0.1 to 100 rad / sec, and a measurement strain is measured. In the range of 0.02 to 4.5%, the minimum value of relaxation elastic modulus H in the relaxation spectrum obtained from the frequency dispersion characteristics measured at temperatures of 60 ° C. and 80 ° C. is in the range of 10 to 900 Pa / cm 2. The toner for developing an electrostatic charge image has a relaxation time λ corresponding to the minimum value in the range of 1 to 10,000 sec. [Selection figure] None |