Toner, developer including the toner, and image forming method, image forming apparatus and process cartridge using the toner

摘要

A toner including a binder resin and a colorant, wherein a pellet of the toner which is prepared by applying a pressure of 15 kg/cm² to the toner has a tensile strength of from 900 Pa to 10,000 Pa, and wherein the toner has a methanol wettability of from 25 to 65% by volume, wherein the methanol wettability is measured by a method in which the toner is dispersed in a mixture solvent of water and methanol, and methanol is added to the toner dispersion while checking the transparency of the dispersion to determine a transparency fall starting point, wherein the methanol wettability is defined as {Vm/(Vm+Vwx100, wherein Vm represents a total volume (ml) of methanol in the dispersion at the transparency dropping point, and Vw represents the total volume of the pure water added.