Reversible thermochromic materials and reversible thermochromic microcapsule pigment encapsulating it

摘要

PURPOSE: To provide a thermally discoloring material having thermal discoloration characteristics such as the high concentration of a generated color on thermal discoloration, a brilliant color tone, and the reduced residue of the color on a decolorization treatment and remarkably improved in thermal stability resistance for the thermal discoloration effect, and a micro capsule pigment encapsuling the same. ;CONSTITUTION: A thermal discoloration material comprising an electron donation-coloring organic compound, a developing agent, 2,2-bis(4'-hydroxyphenyl) hexafluoropropane, of organic compound, and a discoloration temperature- controlling agent, and a microcapsule pigment encapsuling the thermal discoloration material.;COPYRIGHT: (C)1995,JPO