| 摘要 |
PURPOSE:To break an over-cooled condition of a thermal accumulator to take out heat easily and prevent a stain of surrounding state as the thermal accumulator is leaked by a method wherein an interior part and an external part of a container are communicated to each other through selective transmission film arranged at porous part and this part is activated. CONSTITUTION:A container 2 is made from an aluminum laminate film of inner-most layer composed of polyethylene under a thermal melting process, a hole 4 is made at a part of the film and then a selective transmission film is attached to the hole 4 under a heat melting process. This container is made, a thermal accumulation material 3 is filled in the container, the hole part 4 is covered by a lid 6 of polyethylene adhering tape. The thermal accumulation material 3 is heated above its melting point and then cooled, thereby an over-cooled condition of the thermal accumulative material can be attained. If the adhesive tape is removed and the hole is pressed with fingers, the over-cooled condition is broken to enable a latent heat to be taken out. The thermal accumulative material 3 is a hydrated salt thermal accumulation material such as calcium chloride 6 hydrated salt, sodium sulfate 10 hydrated salt, sodium thiosulfuric acid 5 hydrated salt and sodium acetic acid 3 hydrated salt and the like and as required it is mixed with intensifier, stabilizer or thermal conductive substance. |
