TONER FOR ELECTROSTATIC CHARGED IMAGE DEVELOPMENT

摘要

PURPOSE:To obtain toner for an electrostatic charged image development having a wide range of fixable temp. and a suitable height of it, by contg. an offset inhibitor of a polyester resin contg. chloroform insoluble component, as a binder to toner. CONSTITUTION:Toner for an electrostatic charged image development is constituted of a polyester resin contg. >=5wt% chloroform insoluble component which is used as a binder and at the same time an offset inhibitor which is contained. If a polyester resin contg. <=5wt% of the chloroform insoluble component is used, the offset occurring temp. of the obtained toner becomes lower and accordingly the enough wide fixable temp. range is not obtainable and the good fixing is not surely performed. The offset inhibitor to be used is selected among the substances of releasability which is melted at the lower temp. than the softening point of a binder of which the toner is constituted and has low surface energy.