Patent ID: 8497056
Filing Date: 2013-07-30
Classification: G03G

Abstract:
1. A magenta toner comprising a toner particle, which comprises at least when the glass transition temperatures of the magenta toner measured by DSC at a rate of temperature rise of 0.5° C./min and 4.0° C./min are defined as Tg(0.5)(° C.) and Tg(4.0)(° C.) respectively, a relationship between the Tg(0.5) and the Tg(4.0) satisfies the following formulas (1) and (2), wherein, when preparing a solution of which the magenta toner is dissolved in ethyl acetate, and defined the concentration of the thereof as C the ratio of A(ethyl acetate) wherein, when preparing a solution of which the magenta toner is dissolved in chloroform, and defined the concentration of the thereof as C wherein the toner particle has a surface layer (B) with a resin (b) as a main component on a surface of a toner base particle (A) containing at least the resin (a), the colorant, and the wax, and wherein the resin (b) is a resin selected from a urethane resin, a polyether resin, and a vinyl resin containing a vinyl unit represented by the following general formula ( wherein R