TEMPERATURE MANAGEMENT MEMBER UNDER REDUCED-PRESSURE ATMOSPHERE AND TEMPERATURE MANAGEMENT METHOD UNDER REDUCED-PRESSURE ATMOSPHERE

摘要

There is provided a temperature control material in a reduced-pressure atmosphere capable of minimizing the discoloration temperature difference of the thermochromic discoloration layer under atmospheric pressure and reduced-pressure atmosphere. The temperature control member in the reduced-pressure atmosphere contains the particulate heat-melting substance (22) in granular or powder form, which is melted at a melting temperature corresponding to the heating temperature for detection under a reduced pressure atmosphere, and the thermally discoloring layer And the difference between the melting temperature in the atmospheric pressure atmosphere and the reduced pressure atmosphere in the thermochromic material 22 in the thermochromic discoloration layer 12 is set at 5C at the maximum.