PRINTED MATTER HAVING TEMPERATURE SENSITIVITY

摘要

PURPOSE: To provide printed matter developing an image on a display screen by the touch with the hand. CONSTITUTION: In a printing pattern having a display screen part 5 developing an image printed thereon, the display screen part 5 is concealed with a temp.- sensitive ink layer 3 showing a reversible change becoming colorless and transparent at bodily temp. while having the density concealing a draft at the normal temp.