| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for managing temperature under reduced-pressure atmosphere for reducing decoloration temperature of a temperature-sensitive decoloration layer under atmospheric pressure and reduced-pressure atmosphere as much as possible. <P>SOLUTION: The material for managing temperature under reduced-pressure atmosphere contains a granular or powder thermal melting substance 22 which melts at melting temperature corresponding to heat temperature to be detected under reduced-pressure atmosphere, and a thermal discoloration layer 12 which is discolored in accordance with thermal melting is disposed. In the thermal melting substance 22, difference in thermal melting temperature between under the atmospheric pressure and the reduced-pressure atmosphere is 5°C at most. <P>COPYRIGHT: (C)2012,JPO&INPIT |
