Patent ID: 6077638
Filing Date: 2000-06-20
Classification: G03G,Y10S

Abstract:
A toner for developing an electrostatic image, comprising toner particles; wherein each toner particle comprises:(i) 100 wt. parts of a binder resin having a glass transition point (Tg) of 50-70.degree. C.,(ii) 0.2-20 wt. parts of solid wax, and(iii) colorant particles carrying a liquid lubricant, or a magnetic powder carrying a liquid lubricant, or a mixture thereof;the toner particle retaining the liquid lubricant at its surface;wherein the liquid lubricant is an oil selected from the group consisting of fluorinated hydrocarbon, non-reactive silicone, dimethylsilicone, methylphenyl silicone and methylhydrogen siliconeand the toner particles contain 0.2-5 parts of the liquid lubricant per 100 wt. parts of the binder resin.