摘要:
Provided is an electrostatic charge image developing toner, each toner particle including a core portion, a first shell layer, and a second shell layer, wherein the core portion contains a first polyester resin, a colorant, and a release agent, the first shell layer contains a second polyester resin and covers the core portion, the second shell layer contains a polymer of an aromatic vinyl monomer and a third polyester resin having an ethylenic unsaturated double bond that is polymerizable with the aromatic vinyl monomer, and covers the first shell layer, and a total amount of the first shell layer and the second shell layer is within a range of from 16% by weight to 40% by weight of the toner particle.
摘要:
An electrophotographic toner that includes a colorant, a release agent, a non-crystalline resin and a crystalline resin, wherein the crystalline resin is a polyalkyl acrylate or polyalkyl methacrylate having an alkyl group of approximately 18 or more carbon atoms, and is produced by copolymerization with approximately 10 mol % or more, but no more than approximately 50 mol %, of a vinyl monomer having a carboxyl group.
摘要:
The invention provides an image formation apparatus having at least a first toner image-forming unit that forms a first toner image which directly contacts a surface of a recording medium, a second toner image-forming unit that forms a second toner image which is disposed on the first toner image without directly contacting the recording medium, and a fixing unit. The invention further provides a printed item having at least a recording medium, a first toner image directly contacting a surface of the recording medium, and a second toner image residing on the first toner image without directly contacting the recording medium. A contact angle θ1 of the first toner and the first toner image with respect to an aqueous de-inking solution, is smaller than a contact angle θ2 of the second toner and the second toner image with respect to the aqueous de-inking solution.
摘要:
The invention provides an image formation apparatus having at least a first toner image-forming unit that forms a first toner image which directly contacts a surface of a recording medium, a second toner image-forming unit that forms a second toner image which is disposed on the first toner image without directly contacting the recording medium, and a fixing unit. The invention further provides a printed item having at least a recording medium, a first toner image directly contacting a surface of the recording medium, and a second toner image residing on the first toner image without directly contacting the recording medium. A contact angle θ1 of the first toner and the first toner image with respect to an aqueous de-inking solution, is smaller than a contact angle θ2 of the second toner and the second toner image with respect to the aqueous de-inking solution.
摘要:
A toner for electrostatic charge developing prepared by a production method including aggregating one or more kind of particles in a raw material dispersion including the particles to form aggregated particles, and coalescing the aggregated particles by heating. At least one kind of the particles is resin particles including an amorphous polyester resin synthesized by copolymerizing one or more polyvalent carboxylic acids and two or more polyhydric alcohols; at least one of the polyvalent carboxylic acids is polyvalent carboxylic acid having a sulfonic acid group; two of the polyhydric alcohols are an ethylene oxide adduct of bisphenol A and a propylene oxide adduct of bisphenol A; and the following equation is satisfied: 10/90≦BPA(EO)/BPA(PO)≦90/10. In the equation, BPA(EO) represents a total mole amount of the ethylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin, and BPA(PO) represents a total mole amount of the propylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin.
摘要:
A toner for electrostatic charge developing prepared by a production method including aggregating one or more kind of particles in a raw material dispersion including the particles to form aggregated particles, and coalescing the aggregated particles by heating. At least one kind of the particles is resin particles including an amorphous polyester resin synthesized by copolymerizing one or more polyvalent carboxylic acids and two or more polyhydric alcohols; at least one of the polyvalent carboxylic acids is polyvalent carboxylic acid having a sulfonic acid group; two of the polyhydric alcohols are an ethylene oxide adduct of bisphenol A and a propylene oxide adduct of bisphenol A; and the following equation (1) is satisfied. 10/90≦BPA(EO)/BPA(PO)≦90/10 Equation (1) In the equation (1), BPA(EO) represents a total mole amount of the ethylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin, and BPA(PO) represents a total mole amount of the propylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin.
摘要:
A toner for developing an electrostatic image, contains a binder resin having an acid value of from approximately 10 mgKOH/g to approximately 20 mgKOH/g and carbon black having a surface carboxyl group density of from approximately 2×10−6 mol/m to approximately 8×10−6 mol/m2, and is prepared in an aqueous medium.
摘要翻译:用于显影静电图像的调色剂含有酸值为约10mgKOH / g至约20mgKOH / g的粘合剂树脂和表面羧基密度为约2×10 -6 mol / m 2的炭黑至 约8×10 -6 mol / m 2,并在水性介质中制备。
摘要:
A toner for developing electrostatic images, comprising a binder resin and a colorant, the binder resin including a crystalline polyester resin and an amorphous resin. When, in differential scanning calorimetry of the toner according to ASTM D3418-8, the temperature of the endothermic peak derived from the crystalline polyester resin in a first heating process is defined as Tm1 (° C.), the endothermic quantity based on the endothermic peak in the first heating process is defined as ΔH1 (mW/g), and the endothermic quantity based on the endothermic peak in a second heating process is defined as ΔH2 (mW/g), Tm1 is 50 to 80° C., and ΔH1 and ΔH2 satisfy the relationship represented by the following Formula (1). When the softening temperature of the toner is defined as Tf1/2 (° C.), Tf1/2 is 85 to 135° C. Tm1 and Tf1/2 satisfy the relationship represented by the following Formula (2): 0.35≦ΔH2/ΔH1≦0.95 Formula (1) Tf1/2≦205−(1.4×Tm1) Formula (2).
摘要:
Provided is an electrostatic charge image developing toner, each toner particle including a core portion, a first shell layer, and a second shell layer, wherein the core portion contains a first polyester resin, a colorant, and a release agent, the first shell layer contains a second polyester resin and covers the core portion, the second shell layer contains a polymer of an aromatic vinyl monomer and a third polyester resin having an ethylenic unsaturated double bond that is polymerizable with the aromatic vinyl monomer, and covers the first shell layer, and a total amount of the first shell layer and the second shell layer is within a range of from 16% by weight to 40% by weight of the toner particle.
摘要:
A toner for developing an electrostatic image, contains a binder resin having an acid value of from approximately 10 mgKOH/g to approximately 20 mgKOH/g and carbon black having a surface carboxyl group density of from approximately 2×10−6 mol/m to approximately 8×10−6 mol/m2, and is prepared in an aqueous medium.
摘要翻译:用于显影静电图像的调色剂含有酸值为约10mgKOH / g至约20mgKOH / g的粘合剂树脂和表面羧基密度为约2×10 -6 mol / m 2的炭黑至 约8×10 -6 mol / m 2,并在水性介质中制备。