REVERSIBLE THERMAL COLOR-CHANGING AND ULTRAVIOLET LIGHT- CURING TYPE INK AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a reversible thermal color-changing and ultraviolet light- curing type ink capable of improving the solvent resistance of a reversible thermal color-changing composition contained in it for exhibiting a permanent reversible thermal color-changing function and also exhibiting a good color concentration on developing its color. SOLUTION: This reversible thermal color-changing and ultraviolet light- curing ink is obtained by containing the reversible thermal color-changing composition in it with a wall film at least containing a photo-polymerized composition, an aliphatic amine or an aromatic amine, and the above wall film consists of a reversible thermal color-changing microencapsulated pigment ionized by an acidic substance.