摘要:
The invention provides a particle dispersion for an electrostatic image-developing toner containing either polycondensation resin particles, which are prepared by polycondensation of polycondensable monomers in an aqueous medium, or condensation compound particles, which are prepared by dehydration condensation of a condensable compound in an aqueous medium. The particles have a median diameter of approximately 0.05 to 2.0 μm. A dispersion containing the polycondensation resin particles is produced by dispersing resin particles, aggregating the resin particles, and coalescing the aggregated particles by heating. A dispersion containing the condensation compound particles is produced by dispersing resin particles, dispersing condensation compound particles, aggregating the resin particles and the condensation compound particles in a mixture dispersion, obtained by mixing the dispersion of the resin particles and the dispersion of the condensation compound particles, and coalescing the aggregated particles by heating.
摘要:
The present invention provides a toner for developing electrostatic latent images, including resin particles containing a crystalline polymer and an amorphous polymer, wherein the amorphous polymer and the crystalline polymer satisfy the relationship represented by the following formula (1), and a method for manufacturing the toner of the invention. The present invention also provides a developer for electrostatic latent images including the toner of the invention and a carrier; and an image forming method using the toner of the invention. Further the invention provides a method for manufacturing a dispersion of resin particles. δa−δc≧1.05[(cal/ml)1/2(25° C.)] Formula (1) In formula (1), δa represents a solubility parameter of the amorphous polymer, and δc represents a solubility parameter of the crystalline polymer.
摘要:
A resin particle liquid dispersion for an electrostatic image developing toner includes: a polycondensable resin obtained by polycondensing at least one selected from the group consisting of a polycondensable monomer, an oligomer of the polycondensable monomer and a prepolymer of the polycondensable monomer, wherein the resin particle liquid dispersion further comprises a compound having a solubility parameter of 8 or less.
摘要:
A resin particle liquid dispersion for an electrostatic image developing toner comprises: a terminal addition-polymerized polyester having an acid value of from about 5 to about 70 mg.KOH/g, and the terminal addition-polymerized polyester is obtained by a process comprising: polycondensing a polycondensable monomer having a composition comprising the components (a) to (c) described in the specification to obtain a polyester having an addition-polymerizable unsaturated group at a terminal; and addition-polymerizing the addition-polymerizable unsaturated group of the polyester having an addition-polymerizable unsaturated group at a terminal.
摘要:
A resin particle liquid dispersion for an electrostatic image developing toner, comprising: an aqueous medium; and a resin particle dispersed in the aqueous medium to have a median diameter of 0.05 to 2.0 μm, the resin particle comprising a polycondensable polymer obtained by polycondensing polycondensable monomers, wherein a storage modulus GL(30) of the resin particle at 30° C. is 1×107 Pa or more, and a melting point of the polycondensable polymer is from 45 to 110° C.
摘要:
The method for manufacturing of dispersion of fine resin particles of the present invention first emulsifies or disperses a polycondensable monomer for purposed fine resin particles into an aqueous medium. At this time, additives, such as a catalyst, a surfactant, and the like, are also added into the water soluble medium, as required. By subjecting this solution to, for example, heat, or the like, polycondensation proceeds. In this polycondensation, a strong acid salt is used as a polycondensation promoter. In addition, by using the obtained dispersion of fine resin particles, an electrostatic charge image developing toner is manufactured.
摘要:
A toner for developing an electrostatic image contains at least one of an oxidation polymerizable monomer and a polymer having an ethylenically unsaturated group, and an oxidation polymerization catalyst in a form of a composite with inorganic particles, wherein a temperature T(10 Mpa) and a temperature T(1 Mpa) satisfies the following expression (1): 20° C.≦T(1 MPa)−T(10 MPa) (1) wherein, the temperature T(10 Mpa) is a temperature at which a viscosity of the toner under a pressure of 10 Mpa applied with a flow tester becomes 104 Pa·s, and the temperature T(1 Mpa) is a temperature at which a viscosity of the toner under a pressure of 1 Mpa applied with a flow tester becomes 104 Pa·s.
摘要:
An electrostatic image developing toner includes a polyester resin, the electrostatic image developing toner having a sulfur element concentration S at % and a nitrogen element concentration N at % which satisfies 0.5≦N/S≦10, the nitrogen element concentration N being from 0.002 at % to 2.5 at %.
摘要翻译:静电图像显影调色剂包括聚酯树脂,硫元素浓度S at%和氮元素浓度N at%的静电图像显影调色剂满足0.5< NlE; N / S&NlE; 10,氮元素浓度N为0.002 %至2.5at%。
摘要:
An electrostatic image developing toner includes a polyester resin, the electrostatic image developing toner having a sulfur element concentration S at % and a nitrogen element concentration N at % which satisfies 0.5≦N/S≦10, the nitrogen element concentration N being from 0.002 at % to 2.5 at %.
摘要翻译:静电图像显影调色剂包括聚酯树脂,具有满足0.5≤N/ S <= 10的硫元素浓度S at%和氮元素浓度N at%的静电图像显影调色剂,氮元素浓度N来自 0.002at%至2.5at%。
摘要:
A resin for an electrostatic-image-developing toner includes a graft polymer, wherein the graft polymer has a polyester structure in the main chain thereof; the graft polymer includes monomer units derived from vinyl monomers in the side chains thereof; and at least a part of the monomer units have a residue of surfactant.