Method for heating continuous thermoformable foil bands in packaging equipment between a pair of contact plates

摘要

The foil strip (1) passes between a pair of aluminum contact plates (12) which are independent of the heating unit (15) with reflectors (16). The heating unit has elements for heating the contact plates by thermal radiation. The unit is spaced from the contact plates, and the heating elements are either infrared emitters or wire coils. The width (B) of the contact plates is greater than the width (b) of the strip.