NANO-CAPSULE COMPOSITION FOR THERMOSENSITIVE REWRITABLE MEDIUM, PREPARATION METHOD THEREOF, AND TONER COMPOSITION FOR THERMOSENSITIVE REWRITABLE MEDIUM USING THE SAME

摘要

PURPOSE: Provided is a nano-capsule composition of a core/shell type, which has excellent writing property and thermal stability suitable to be used in a toner, a paper or a film for high resolution electrostatic images, and forms a rewritable medium. CONSTITUTION: The nano-capsule composition having a core/shell structure comprises 0.1-30 parts by weight of a color forming compound, 0.1-60 parts by weight of a color developing compound, 15-80 parts by weight of a radically polymerizable monomer, 0.01-10 parts by weight of a surfactant, 0.1-10 parts by weight of a radical polymerization initiator and 20-80 parts by weight of water, wherein the polymer obtained from the radically polymerizable monomer surrounds the color forming compound and the color developing compound. The nano-capsule has a diameter ranged from 10 to 3000 nm.