| 摘要 |
PURPOSE: A multi-layered cold pack is provided to keep contained foods at low temperature, avoiding quality degradation of the foods. CONSTITUTION: A multi-layered cold pack(10) comprises an upper container(110) in which a cold storage agent is contained, and a lower container(130) which is formed under the upper container and accommodates a freezing point drop cold storage agent whose freezing point is lower than that of the cold storage agent contained in the upper container. The upper container has a multi-layered structure composed of a plurality of receiving parts. An insulation layer is formed on the lower face of the lower container. |
