TONER FOR DEVELOPING ELECTROSTATIC IMAGE AND PROCESS FOR PREPARING SAME

摘要

PURPOSE: An electro-photographic toner and a manufacturing method thereof are provided to control the content of wax exposed to the surface of the toner, and to improve the durability and fixation property of the toner. CONSTITUTION: An electro-photographic toner contains a latex, a colorant, and a releasing agent. The area rate of a protrusion unit with the height over 100 nanometers from the surface area of the toner is 5~15%. The electro-photographic toner additionally contains 3~1,000ppm of Si and Fe in a molar ratio(Si/Fe) is 0.1~5. The electro-photographic toner includes the average molecular weight of 60~75k while analyzing through a GPC(gel chromatography).