Patent ID: 7056634
Filing Date: 2006-06-06
Classification: G03G

Abstract:
1. A yellow toner comprising a yellow toner particle that contains at least a binder resin, a wax, and a yellow pigment containing a monoazo compound represented by a formula (1) as follows, wherein a value of a* is in the range of −5 to +14 when b* is +80 with respect to a transmission chromaticity of a thermally fixed image formed on a transparency sheet using the toner wherein X wherein the yellow pigment is prepared by conducting a coupling reaction in an aqueous solution containing 5 to 500 parts by mass of a water-soluble resin with respect to 100 parts by dry mass of the yellow pigment produced in a reaction; and wherein the water-soluble resin comprises a sulfonic group or a salt thereof.