| 摘要 |
PURPOSE:To provide an exothermic material which is capable of stably maintaining an exothermic temp., has a shape suitable for heating cooked food and is producible at a low cost. CONSTITUTION:This exothermic material is composed of a hermetic inside bag 14 into which an aq. liquid 13 is encapsulated and which is formed rupturably by pressurization or impact and a hermetic outside bag 20 into which fine grains or powder of a chemical material 16 to generate heat by coming into contact with this aq. liquid 12 and air are encapsulated and which has resistance to pressure, chemicals, heat and water. |
