COLORANT DISPERSION MATERIAL, METHOD FOR MANUFACTURING COLORANT DISPERSION MATERIAL AND METHOD FOR MANUFACTURING TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT

摘要

PROBLEM TO BE SOLVED: To provide a wet colorant dispersion material suitable for an aqueous medium toner, excellent in transparency and coloring property and free from problems of degradation in a dispersion liquid due to reaggregation or the like. SOLUTION: The colorant dispersion material comprises at least a wet dispersion medium and colorant particles and is characterized in that: the volume cumulative average diameter Dv50 (μm) of the colorant particles in the colorant dispersion material measured by a dynamic light scattering method satisfies formula (1):0.10