DISCHARGE OR DISCOLORATION INK COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an ink composition capable of discharging or discoloring a handwriting in a short time by an operation with applying coloring performance and discoloring performance of a leuco dye.SOLUTION: There is provided a discharge or discoloration ink composition containing at least a microcapsule including one or both of a colored component consisting of at least a leuco dye and a developer or a discoloring material separately and a particle having non film forming property at normal temperature.EFFECT: The discharge or discoloration composition provides the particle having non film forming property at normal temperature moving in a handwriting during friction by eraser, easily scratches and breaks contacting microcapsule and provides the handwriting easily being deleted.SELECTED DRAWING: None