Thermochromische Zusammensetzung mit Farbgedächtnis, Tinte, und mikroverkapseltes Pigment, das diese Zusammensetzung enthält

摘要

A thermochromic coloring color-memory composition which comprises a homogeneous solubilized mixture of (A) an electron donative coloring organic compound, (B) an electron accepting compound and (C) an ester compound represented by the specific formula (1) as a reaction medium which controls color reactions of the components (A) and (B).
wherein, R represents an alkyl group or an alkenyl group, having 4 or more carbon atoms.