COLD RESERVING PACKAGE AND PACKED MEMBER

摘要

The present invention prevents prolonged cooling time and severe cooling of the product by the coolant. Further, it has a sublimable coolant 2 and a sheet material 3 that is formed in a bag shape and has airtightness to accommodate the sublimable coolant 2 from the open end 4, and the sheet material 3 has an open end On the (4) side, when the air pressure in the storage space 3a of the sublimable coolant 2 rises, it has an exhaust valve 5 that exhausts the gas to the outside.