Induction cap sealing is a non-contact process by which a foil disk or “seal” is bonded to a container. Developed more than 35 years ago, induction sealing was originally intended to prevent leakage of chemicals from plastic bottle caps. Today, this unique process can be used with most any style container and closure for sealing foods, drugs, beverages, solvents and chemicals.
First, the caps are supplied with an aluminum foil induction innerseal, ready to load into the capper. The container is then filled and capped by the existing process, using the caps that are pre-lined with the induction innerseal.