摘要:
A negatively-chargeable non-magnetic one-component developer for developing an electrostatic latent image using a contact DC-bias development method, having a capacitance of 1.05×10−12 to 1.25×10−12 F, a volume resistivity of 5.0×1010 to 5.0×1012 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2. In a contact DC-bias development method, the developer has a capacitance of 1.30×10−12 to 1.60×10−12 F, a resistivity of 5.0×109 to 5.0×1010 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2. In a non-contact DC/AC-bias development method, the developer has a capacitance of 1.45×10−12 to 1.60×10−12 F, a resistivity of 5.0×109 to 1.0×1010 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2.
摘要:
A negatively-chargeable non-magnetic one-component developer for developing an electrostatic latent image using a contact DC-bias development method, having a capacitance of 1.05×10−12 to 1.25×10−12 F, a volume resistivity of 5.0×1010 to 5.0×1012 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2. In a contact DC-bias development method, the developer has a capacitance of 1.30×10−12 to 1.60×10−12 F, a resistivity of 5.0×109 to 5.0×1010 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2. In a non-contact DC/AC-bias development method, the developer has a capacitance of 1.45×10−12 to 1.60×10−12 F, a resistivity of 5.0×109 to 1.0×1010 Ω·cm and a dielectric loss tangent of 1.0×10−3 to 2.0×10−2.
摘要:
A toner is provided including a colorant; a resin composition (A) comprising at least one binder resin and a hydrocarbon wax having a melting point of 70-90° C. in an amount of from 6 to 30% by weight based on total weight of resin composition (A), and having a softening point (T1/2(A)) of from 120 to 150° C.; and a resin composition (B) having a softening point (T1/2 (B)) of from 100 to 130° C., wherein a weight ratio of the resin composition (A) to the resin composition (B) is from 10/90 to 45/55, and the following relationship is satisfied: T1/2(A)≧T1/2(B)+3; and the use of the toner in an image forming method, an image forming apparatus, and a process cartridge.
摘要:
A toner including toner particles including a binder resin, a colorant and a release agent, and an external additive including a first particulate inorganic material having a formula of MgxSiyOx+2y where each of x and y is an integer, and a number average secondary particle diameter of from 0.02 μm to 2 μm, wherein the first atomic ratio (Mg/Si)s in a surface portion of the first particulate inorganic material is not greater than (preferably less than) the second atomic ratio (Mg/Si)e in the entire first particulate inorganic material. Alternatively, a toner including toner particles including a binder resin and a colorant, and an external additive which includes a particulate inorganic material having a formula of MgxSiyOx+2y where each of x and y is an integer and which has a surface treated with a fatty acid.
摘要翻译:包含调色剂颗粒的调色剂,包括粘合剂树脂,着色剂和脱模剂,以及外部添加剂,其包含具有下式的Mg x Se y O x + 2 y的第一颗粒无机材料,其中x和y各自为整数,数均二次颗粒 直径为0.02μm至2μm,其中第一颗粒无机材料的表面部分中的第一原子比(Mg / Si)s不大于(优选小于)第二原子比(Mg / Si)e 整个第一颗粒无机材料。 或者,包括包含粘合剂树脂和着色剂的调色剂颗粒的调色剂和包含具有式为Mg x Se y O x + 2 y的颗粒状无机材料的外部添加剂,其中x和y各自为整数,并且其表面用脂肪 酸。
摘要:
A toner including toner particles including a binder resin, a colorant and a release agent, and an external additive including a first particulate inorganic material having a formula of MgxSiyOx+2y where each of x and y is an integer, and a number average secondary particle diameter of from 0.02 μm to 2 μm, wherein the first atomic ratio (Mg/Si) s in a surface portion of the first particulate inorganic material is not greater than (preferably less than) the second atomic ratio (Mg/Si)e in the entire first particulate inorganic material. Alternatively, a toner including toner particles including a binder resin and a colorant, and an external additive which includes a particulate inorganic material having a formula of MgxSiyOx+2y where each of x and y is an integer and which has a surface treated with a fatty acid.
摘要翻译:包括调色剂颗粒的调色剂,包括粘合剂树脂,着色剂和脱模剂,以及包含具有下式的第一颗粒无机材料的外部添加剂:具有下式的Mg x Si x + 2y其中x和y各自为整数,数均二次粒径为0.02μm至2μm,其中表面部分中的第一原子比(Mg / Si) 的第一颗粒无机材料在第一颗粒无机材料的整体中不大于(优选小于)第二原子比(Mg / Si)e。 或者,包括包含粘合剂树脂和着色剂的调色剂颗粒的调色剂和包含具有下列化学式的颗粒状无机材料的外部添加剂:具有下列化学式的化合物:具有下式的Mg x Si > x + 2y其中x和y各自是整数,并且具有用脂肪酸处理的表面。
摘要:
A toner is provided including a colorant; a resin composition (A) comprising at least one binder resin and a hydrocarbon wax having a melting point of 70-90° C. in an amount of from 6 to 30% by weight based on total weight of resin composition (A), and having a softening point (T1/2(A)) of from 120 to 150° C.; and a resin composition (B) having a softening point (T1/2 (B)) of from 100 to 130° C., wherein a weight ratio of the resin composition (A) to the resin composition (B) is from 10/90 to 45/55, and the following relationship is satisfied: T1/2(A)≧T1/2(B)+3; and the use of the toner in an image forming method, an image forming apparatus, and a process cartridge.
摘要:
To provide a toner containing at least a toner base containing a binder resin and a colorant, and an inorganic fine particle, wherein the inorganic fine particle contains a compound oxide expressed by the following Composition Formula (1): [M1]aSibOc Composition Formula (1) where “M1” represents a metal element selected from Sr, Mg, Zn, Co, Mn and Ce, “a” and “b” each represents an integer of 1 to 9 and “c” represents an integer of 3 to 9, wherein an average primary particle diameter of the compound oxide is 0.02 μm to 1.5 μm, and an average secondary particle diameter of the compound oxide is 0.08 μm to 3.5 μm, where the secondary particle is an aggregate of the primary particles.
摘要:
A toner kit containing at least a black toner, a yellow toner, a magenta toner and a cyan toner, wherein these toners have at least the binder resin, the colorant and the charge controlling agent having the molecular structure containing K+ as the counterion, when the K+ intensity detected by the fluorescent X ray on the surface of the black toner is Kk, the K+ intensity detected by the fluorescent X ray on the surface of the yellow toner is Ky, the K+ intensity detected by the fluorescent X ray on the surface of the magenta toner is Km and the K+ intensity detected by the fluorescent X ray on the surface of the cyan toner is Kc, the following formulae: Kk
摘要:
A toner kit containing at least a black toner, a yellow toner, a magenta toner and a cyan toner, wherein these toners have at least the binder resin, the colorant and the charge controlling agent having the molecular structure containing K+ as the counterion, when the K+ intensity detected by the fluorescent X ray on the surface of the black toner is Kk, the K+ intensity detected by the fluorescent X ray on the surface of the yellow toner is Ky, the K+ intensity detected by the fluorescent X ray on the surface of the magenta toner is Km and the K+ intensity detected by the fluorescent X ray on the surface of the cyan toner is Kc, the following formulae: Kk
摘要:
It is an object of the present invention to provide a toner containing toner particles and inorganic fine particles wherein the inorganic fine particles are externally added to the toner particles which contain a binder resin and a colorant and at least one type of the inorganic fine particles is a compound oxide having a relative permittivity measured at 1 MHz of 2 to 10 and a volume resistivity of 1011Ω·cm or more and an image forming method using the toner.