The induction seal is necessarily an aluminum based multi layer laminate. This seal consists primarily of a Carrier or backing material Bonding layer Aluminum foil sealing layer specially multiplayer liners with laminates of polyester / paper / polymer / Lacquer either on the backing or the sealing side are also provided. Options provided for structuring the induction seal are - Carrier material: Board (waxed / poly or polyester laminated) EPE / EPE foam (XLPE) - Sealing material: Aluminum / polyester / paper (glassine / poster / Kraft) / polymer / lacquer.
Hi - Tech Sealing Process - Electromagnetic field can induce heat in a conductive material. - Caps lined with the induction seal (either by gluing or by holding it in place by reinforcing crease) is screwed on to the container. - The capped container is passed under the sea ling head of an induction sealing machine. - The high frequency magnetic field generated by the coil induces an electrical current within the aluminum foil. - This way the foil heats up and melts the seal film and wax. - The sealing layer is bonded permanently to the opening of the container. - The wax is absorbed by the carrier material. - On opening the sealed container, the carrier material remains inside the cap where it consists as a secondary seal and the seal film will close the container hermetically.
We also make following seals - Integral Safety Seal Liners - Aluminum Foil Seals - Board Reseal Liners - Waxed / Laminated - EPE / EPE Foam (XLPE) - Product / pack compatible and customer specified speciality liners Exclusively for PET / LDPE / HDPE / PP / HIPS / PVC / and Glass Containers, Cups, Jars and Tubs.