US Patent 7781136 Toner and production method of the same

A toner comprising toner particles containing a colorant and a binder resin, the binder resin comprising a polyester resin, wherein the polyester resin comprises at least a polyester segment containing an aromatic dial component, the polyester segment being derived from an aromatic diol and a dicarboxylic acid, wherein a content of the polyester segment containing an aromatic dial component is higher in a surface-portion of the toner particle than in a central portion of the toner particle.