Container having self-contained heater material

摘要

A container (10) is provided that has a compartment (40) for storing an air-activated material (50) for heating contents. The compartment is formed between a first web (20) of material and a second web (30) of material. The first web includes a first film layer (22) laminated to a second film layer (24). A portion of the first film layer of the first web can be separated from the second film layer to reveal openings (65) in the first film layer that allow air to enter the compartment. When the air contacts the air-activated material to activate the material, an exothermic reaction takes place that serves to produce heat, such as to heat the contents of the container.