SELF-HEATING FLEXIBLE PACKAGE

摘要

Improved heaters and self-heating packages that function without application of external energy. Heat is generated by contact of a heat-producing composition, such as calcium oxide, and an activating solution which is typically water. The heater contains multicompartments (9, 11) containing heat-producing composition and activating solution. The heater is activated by application of hand pressure to rupture a frangible seal (13) which allows the heater components to mix. The heater compartments (9, 11) are at least in part formed from flexible walls. The self-heating package has one or more products or product containers in thermal contact with one or more heaters. In preferred packaging embodiments, the heating package has one or more product containers or pouches in thermal contact with one or more heaters. In a specific embodiment, the product container is integrally formed with the heater. Preferred self-heating packages are constructed entirely of flexible packaging materials.