CHARGE CONTROL AGENT COMPOSITION FOR EXTERNAL ADDITION AND ELECTROSTATIC IMAGE DEVELOPING TONER
摘要
There is provided an electrostatic image developing toner less likely to cause image degradation even when used for a long period, by controlling CCA particles present on surfaces of toner particles and thereby keeping an amount of tribocharge generated between the toner and a magnetic carrier or the like constant. A charge control agent composition for external addition for controlling charge amount of toner particles includes: at least two types of carrier particles different in average particle size of primary particles; and a charge control agent (CCA), and an electrostatic image developing toner is constituted of a mixture of toner particles and the aforesaid charge control agent composition for external addition.
申请公布号
EP2749953(A1)
申请公布日期
2014.07.02
申请号
EP20120825805
申请日期
2012.08.22
申请人
MORIMURA CHEMICALS, LTD.;SHIN-ETSU CHEMICAL CO., LTD.