HEAT QUANTITY INTEGRATION DISPLAY LABEL

PROBLEM TO BE SOLVED: To solve the problem that a low-cost means does not exist, for knowing the total heat quantity received by an object body with the passage of time, which is required to be known as well as a mere temperature change at each time or instantaneous temperature information, relative to some of articles requiring temperature control. SOLUTION: Pigment-containing wax 2 formed by dispersing a pigment in wax starting fusion at a temperature set beforehand is superimposed on the wide side end of an oblong wax absorber 1 having a tapered plane shape having the width reducing in proportion to the distance from one end toward the other end in the longitudinal direction, and the whole surface of the wax absorber 1 and the pigment-containing wax 2 is covered with a transparent film 5. COPYRIGHT: (C)2004,JPO