| 摘要 |
PROBLEM TO BE SOLVED: To allow warm contents to be kept warm for a relatively long time with little temperature drop with a simple structure at a low cost by sealing a liquid-like or jelly-like substance in a heat-insulating bag which can be used for heating by a heating apparatus except a microwave oven. SOLUTION: A heating medium sealed body 4 comprising a thermal medium 2 of a liquid-like or jelly-like substance sealed inside an inner bag 3 is put in an outer bag 5 made of a hat-insulating material and sealed to constitute a warming material 1. The heating medium 2 is heated by a heating apparatus such as an electric oven or a steam oven except a microwave oven. The thermal medium 2 may include water or a solid substance such as saline such as sodium chloride solved in water for example or a jelly-like substance such as agar as a jelly-like body. The inner bag 3 end not be a heat-insulating material, wherein a material except those allowing refrigerant to permeate or absorbing it may be used, while nylon for example is preferably used. As a result, a warm object to be warmed can be simply kept warm with little drop in temperature. |
