Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the same

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 as a reaction medium which controls color reactions of the components (A) and (B).