Patent ID: 6939653

Claim:
An image-forming color toner, comprising: a colorant; a resin (A); a modified resin (B); and wax (a) as a mold releasing agent; wherein the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B), and the modified resin (B) comprises a graft copolymer having a principal chain formed of a wax component (b) and a side chain comprising a copolymer of at least one aromatic vinyl monomer and at least one ester-group containing monomer selected from alkyl esters of unsaturated carboxylic acids and vinyl ester monomers, wherein the at least one ester-group containing monomer is present in said side chain in an amount sufficient to provide an average ester group concentration of 8% by weight to 30% by weight.