Patent ID: 7932008

Claim:
A hybrid toner comprising: core particles comprising about 100 parts by weight of a polyester-based resin, about 1-20 parts by weight of a wax, about 0.1-10 parts by weight of a colorant and about 0.1-10 parts by weight of a charge control agent; and a shell on the core particles comprising about 5-500 parts by weight of a vinyl-based resin obtained by polymerizing a monomer in the presence of a macromonomer selected from the group consisting of polyethylene glycol(PEG)-methacrylate, polyethylene glycol(PEG)-ethyl ether methacrylate, polyethylene glycol(PEG)-dimethacrylate, polyethylene glycol(PEG)-modified urethane, polyethylene glycol(PEG)-modified polyester, polyacrylamide(PAM), polyethylene glycol(PEG)-hydroxyethylmethacrylate, hexa functional polyester acrylate, dendritic polyester acrylate, carboxy polyester acrylate, fatty acid modified epoxy acrylate, and polyester methacrylate, the monomer being selected from the group consisting of a styrene-based monomer, a (meth)acrylate-based monomer, ethylenically unsaturated monoolefins, vinyl esters, vinyl ethers, vinyl ketones and nitrogen-containing vinyls, about 0.1-10 parts by weight of silica, about 0.1-5 parts by weight of a metal oxide and about 0.1-10 parts by weight of polymer beads.