Dynamic Hydrogels: Switching of 3D Microenvironments Using Two‐Component Naturally Derived Extracellular Matrices

A package has a container containing therein contents including a moisture-sensitive substance. The container is provided, on the outside surface of the main sidewall portion thereof, with a metal foil-containing laminated film by welding so that the laminant film may cover at least the whole surface of the main sidewall portion. At least the sidewall portion of the container is preferably made of a molded polyolefin substrate having thickness of not less than 100 mum.