Carrier for dry two-component developer and method of producing the same

摘要

A carrier for a dry two-component developer, includes a core material and a silicone-modified acrylic resin layer coated on the surface of the core material, the silicone-modified acrylic resin layer including a silicone-modified acrylic resin, with the ratio of the percentage transmission of infrared spectrum Si-O stretching vibrations (TSi) of the silicone-modified acrylic resin layer to the percentage transmission of infrared spectrum C=O stretching vibrations (TC) thereof, TSi/TC, being at least 1.0. The silicone-modified acrylic resin layer can be made from a water-soluble synthetic resin solution containing a silicone macromonomer (A) with a vinyl group being introduced into one terminal thereof, and a vinyl monomer (B) which is copolymerizable with the silicone macromonomer (A), with the molecular weight of the silicone macromonomer (A) of the silicone-modified acrylic resin being in the range of 1,000 to 10,000. Methods of producing such carriers are provided.