Patent ID: 8460847

Claim:
A toner comprising core-shell particles as a resin binder, wherein each of the core-shell particles comprises a core portion obtained by subjecting a crystalline polyester-containing aqueous dispersion and a non-crystalline polyester-containing aqueous dispersion to aggregation, wherein the crystalline polyester is produced by polycondensing an alcohol component containing 70 mol % or more of an aliphatic diol having 2 to 8 carbon atoms, based on the total content of the alcohol component in the crystalline polyester, with a carboxylic acid component containing 50 mol % or more of terephthalic acid, based on the total content of the carboxylic acid component in the crystalline polyester; and a shell portion comprising a non-crystalline polyester, wherein all the non-crystalline polyester are obtained by polycondensing a carboxylic acid component containing 10 mol % or more of terephthalic acid, based on the total content of the carboxylic acid component in the non-crystalline polyester, with an alcohol component, and wherein the carboxylic acid component containing 10 mol % or more of terephthalic acid, based on the total content of the carboxylic acid component in the non-crystalline polyester, is a carboxylic acid component containing 60 to 90 mol % of terephthalic acid.