摘要:
An electrophotographic toner includes a latex, a coloring agent, a wax and 3 to 1,000 ppm of each of Si and Fe, wherein a mole ratio of Si to Fe is from 0.1 to 5.
摘要:
A toner includes a core containing a binder resin, wax, and a colorant, and an external additive layer coating the core, wherein the core is prepared such that it is extruded and extended to have a fiber phase, and is pulverized. The toner has an improved fixing ability to allow an electrostatic image to be fixed at a low temperature while having an excellent durability and an improved storage stability, while exhibiting reduced toner blocking and offset phenomena.
摘要:
A hybrid toner includes micro cylinders, cores inserted into the micro cylinders, and an external addition layer covering the micro cylinders to which the cores are inserted. The hybrid toner prevents a toner blocking phenomenon, image contamination, and low storage stability which occur due to dispersion of wax and colorants to an outer surface of the toner.
摘要:
A toner includes a core containing a binder resin, wax, and a colorant, and an external additive layer coating the core, wherein the core is prepared such that it is extruded and extended to have a fiber phase, and is pulverized. The toner has an improved fixing ability to allow an electrostatic image to be fixed at a low temperature while having an excellent durability and an improved storage stability, while exhibiting reduced toner blocking and offset phenomena.
摘要:
An electrophotographic toner includes a latex, a coloring agent, a wax and 3 to 1,000 ppm of each of Si and Fe, wherein a mole ratio of Si to Fe is from 0.1 to 5.
摘要:
A toner and a method of preparing the toner, the method including: preparing first latex particles by polymerizing a toner composition including a macromonomer having a hydrophilic group, a hydrophobic group, and at least one reactive functional group; at least one polymerizable monomer; and a wax; preparing a first agglomerated toner by mixing the first latex particles with a pigment dispersion dispersed by the macromonomer and adding an inorganic salt to the mixture; and coating second latex particles which are prepared by polymerizing a composition for the second latex particles including at least one polymerizable monomer and a cross-linkable monomer on the first agglomerated toner, a method of forming an image using the toner, and an image forming apparatus employing the toner.
摘要:
A method for preparing latex for a toner includes heating a mixture of distilled deionized water and poly (ethylene glycol)-ethyl ether methacrylate (PEG-EEM) with stirring, adding a monomer mixture, 1-dodecanethiol and an ester wax to the mixture, dispersing the mixture with ultrasonic vibration, adding potassium persulfate (KPS) to the dispersion and allowing to react for 4 to 6 hours, and allowing the reaction mixture to cool with stirring. The dry toner prepared by the method enables easy control over the molecular weight of latex, has superior durability and excellent low-temperature fixation, contains a small amount of wastewater and is composed of small-diameter particles, thus being suitable for use in high-definition printers.
摘要:
A toner preparation method is provided including: polymerizing a toner composition including a polyester-macromonomer having double bonds at the molecular chain ends and at least one polymerizable monomer to prepare a polymer latex; and mixing the polymer latex with a dispersed pigment solution obtained by dispersing a pigment in a macromonomer having both a hydrophilic group and a hydrophobic group and containing at least one reactive functional group and agglomerating the polymer latex in the presence of an inorganic salt, and a toner prepared using the toner preparation method. The toner has excellent properties of both a polyester-based monomer and a vinyl-based monomer and excellent gloss, durability, low-temperature fixing property, and storage stability, and the shape and size of the toner can be easily controlled.
摘要:
A hybrid toner and a method of preparing the toner are provided. The hybrid toner is of a core-shell type having improved storage characteristics and a toner blocking phenomenon. The toner prevents image contamination caused by dispersion of waxes or colorants onto the surface of the outer layer of toner particles are prevented. The hybrid toner includes particles including: a core of about 100 parts by weight of a polyester-based resin, about 1-20 parts by weight of a wax, about 0.1-10 parts by weight of a colorant and about 0.1-10 parts by weight of a charge control agent; and about 5-500 parts by weight of a vinyl-based resin, about 0.1-10 parts by weight of silica, about 0.1-5 parts by weight of a metal oxide and about 0.1-10 parts by weight of polymer beads.
摘要:
A method of preparing toner and a toner using the method is provided. More particularly, a method of preparing toner controls a shape of finally obtained toner particles by adjusting a molecular weight and Tg of polymer latex and can easily obtain a desired size, shape, and size distribution of toner particles by controlling aggregation of polymer latex particles and process conditions. A toner using the method, an image forming method using the toner and an image forming apparatus including the toner are also provided. The toner is prepared by forming polymer latex particles having different molecular weights by polymerizing a toner composition including macromonomers containing a hydrophilic group, a hydrophobic group and at least one reactive functional group, and at least one polymerizable monomer; and mixing the polymer latex particles having different molecular weights with a pigment dispersion solution to control aggregation of the polymer latex particles by controlling pH or an amount of added inorganic salts and optimizing process conditions.