Patent application number | Description | Published |
20090214973 | TONER, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - A toner is provided that includes a release agent, a colorant, a binder resin including a polyester resin, and a fixing auxiliary component including an ester compound of a fatty acid with an alcohol. The fatty acid includes stearic acid and behenic acid in a total amount of 80% by weight or more. The alcohol includes ethylene glycol in an amount of 80% by weight or more. The ester compound has a hydroxyl value of 10 to 100 mgKOH/g. | 08-27-2009 |
20090325099 | TONER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE - A toner produced by a method including dissolving or dispersing toner components comprising a colorant and at least one of a binder resin and a precursor thereof in an organic solvent to prepare a toner components liquid, dispersing the toner components liquid in an aqueous medium including a surfactant, a particulate resin A having the same polarity as the surfactant and a volume average particle diameter of from 5 to 50 nm, and a particulate resin B having a volume average particle diameter of from 10 to 500 nm to form liquid droplets, and removing the organic solvent from the liquid droplets. The particulate resin B is incompatible with the binder resin and swells in the organic solvent. | 12-31-2009 |
20100035170 | TONER, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD - A toner according to the present invention contains at least a polyester resin as a binder resin, a colorant, a releasing agent, a fixing-assisting component, and a fatty acid, wherein the fixing-assisting component has a melting point of 60° C. to 120° C. and contains at least one of an esterified compound obtained by esterification of the fatty acid and an amide compound obtained by amidation of the fatty acid. | 02-11-2010 |
20100075243 | TONER FOR ELECTROPHOTOGRAPHY, AND TWO-COMPONENT DEVELOPER AND IMAGE FORMING METHOD USING THE TONER - A toner for electrophotography, including a release agent; a binder resin; a colorant; and an external additive, wherein the binder resin is a polyester resin, and wherein the toner has a loss on heat not greater than 0.40% by weight at 165° C. and a difference between a loss on heat at 200° C. and the loss on heat at 165° C. not greater than 0.50% by weight, and includes a n-paraffin in an amount not less than 3% by weight. | 03-25-2010 |
20100075245 | RESIN PARTICLE, TONER, AND IMAGE FORMING METHOD AND PROCESS CARTRIDGE USING THE SAME - Disclosed is a resin particle having a volume average particle diameter of 10 nm to 500 nm, obtained by polymerizing an addition polymerizable monomer containing a silsesquioxane (a) represented by Formula (I) or by copolymerizing the silsesquioxane (a) with an addition polymerizable monomer (b), | 03-25-2010 |
20100081075 | MAGENTA TONER AND DEVELOPER - A magenta toner, produced by a method including suspending an oily liquid comprising a binder resin and a colorant in an aqueous medium, wherein the colorant comprises a naphthol pigment and a quinacridone pigment, and the quinacridone pigment comprises a pigment having a specific formula. | 04-01-2010 |
20100310980 | TONER, AND DEVELOPER, DEVELOPER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD USING THE TONER - A toner, including a colorant; a binder resin; a release agent; and a fixing supplemental component, wherein the toner has a storage elastic modulus G′ (Pa) satisfying the following conditions: | 12-09-2010 |
20110086305 | TONER, METHOD OF MANUFACTURING TONER, DEVELOPER, AND IMAGE FORMING METHOD - A toner including a mother toner comprising a binder resin and a calixarene having a halogen group, and a charge controlling agent having a halogen group that is present on a surface of the mother toner. The ratio of halogen ion to carbon ion on a surface of the toner is from 0.01 to 0.5, when determined by TOF-SIMS. The toner can be prepared by preparing a first liquid by dissolving or dispersing toner components including a calixarene having a halogen group and a binder resin and/or a precursor of the binder resin in an organic solvent; preparing a second liquid by emulsifying or dispersing the first liquid in an aqueous medium; removing the organic solvent from the second liquid; preparing a third liquid by washing the second liquid from which the organic solvent is removed; and adding a charge controlling agent having a halogen group to the third liquid. | 04-14-2011 |