| 摘要 |
PROBLEM TO BE SOLVED: To prevent an exothermic agent from clustering on one side inside an exothermic agent bag during transportation, etc. SOLUTION: The internal part of the exothermic agent bag 2 is maintained in a lower-pressure state than atmospheric pressure. Therefore, in the exothermic agent 5 in the exothermic agent bag 2, grains are in a state compacted by atmospheric pressure i.e., in an integral solid state. In the exothermic agent bag 2 in a solid state, a recessed part 21 is formed at a part along a cord 4 on the opposite side to a water bag 6, and the thickness of the part along the cord 4 is thinner than other parts. |
