Polymerized toner with high chargeability and good charge stability and preparatiion method thereof

• Main Author: LEE WOONG-KI,LEE CHANG-SOON,YOON TAE-HEE,JUNG WOOUL
• Format: Patent
• Language: English
• Published: 04.04.2007
• Subjects: CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MAGNETOGRAPHY; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHOTOGRAPHY; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to a polymerized toner with high chargeability and good charge-stability, and a method of preparing the polymerized toner. In particular, the present invention relates to a polymerized toner containing pigments, pigment stabilizers, charge control agents and binder resin monomers, and a method to prepare the polymerized toner by suspension polymerization of pigments, pigment stabilizers, charge control agents and binder resin monomers, wherein the pigment stabilizer is a styrene-butadiene-styrene block copolymer having the weight-average molecular weight of 2,000 to 200,000, and the charge control agent is a copolymer with sulfonate group having the weight-average molecular weight of 2,000 to 200,000.