发明名称 Electrostatic charge image developing toner, electrostatic charge image developing developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
摘要 An electrostatic charge image developing toner includes a binder resin that contains an amorphous polyester resin and a colorant. The toner satisfies the following expressions: 20 μS/cm≦ρ≦150 μS/cm, and 0.01%<Cm/(Cc+Co)×100<0.1%, where ρ represents the conductivity of a supernatant solution when 0.1 g of the toner is dissolved in 30 ml of tetrahydrofuran, Cm represents the content (% by mass) of metal elements Al, Mg, and Fe, Cc represents the content (% by mass) of carbon, and Co represents the content (% by mass) of oxygen.
申请公布号 US9104125(B2) 申请公布日期 2015.08.11
申请号 US201113282960 申请日期 2011.10.27
申请人 FUJI XEROX CO., LTD. 发明人 Sakamoto Shinya;Inoue Satoshi;Yoshida Satoshi;Iwazaki Eisuke;Murakami Tsuyoshi
分类号 G03G9/087;G03G9/08;G03G9/097 主分类号 G03G9/087
代理机构 Oliff PLC 代理人 Oliff PLC
主权项 1. An electrostatic charge image developing toner, wherein the toner comprises a toner particle that is prepared by an aggregation process and a coalescence process in an aqueous medium, wherein the aggregation process is performed with an aggregating agent that includes at least one kind of metal element selected from Al, Mg, or Fe, the toner particle comprising: a binder resin that contains an amorphous polyester resin; and a colorant, wherein the toner satisfies the following expressions, 20 μS/cm≦ρ≦150 μS/cm and0.01%<Cm/(Cc+Co)×100<0.1%,where ρ represents a conductivity of a supernatant solution when 0.1 g of the toner is dissolved in 30 ml of tetrahydrofuran, Cm represents a content (% by mass of the total amount of the elements in the toner particle as determined by x-ray fluorescence) of at least one metal selected from Al, Mg, or Fe originating from the aggregating agent, Cc represents a content (% by mass of the total amount of the elements in the toner particle as determined by x-ray fluorescence) of carbon in the toner particle, and Co represents a content (% by mass of the total amount of the elements in the toner particle as measured by x-ray fluorescence) of oxygen in the toner particle.
地址 Tokyo JP