Abstract: An induction sealing device for induction welding of a packaging material is disclosed. In some embodiments, the induction sealing device comprises an inductor coil configured to induce an alternating current in a metal foil of the packaging material for inductive heating thereof. The induction sealing device can further comprise a magnetic insert encapsulating the inductor coil apart from an outer portion of the inductor coil, and the outer portion can be arranged towards the packaging material to be sealed. In some embodiments, the magnetic insert is configured to interact with the packaging material to be sealed via at least one interactive surface. In some embodiments, the induction sealing device comprises a connection unit. The connection unit can comprise a parallel connection configured to connect to the inductor coil and to an AC power source. A corresponding method of manufacturing an induction sealing device is also disclosed.

Abstract: A disclosed induction sealing device (100) for induction welding of a packaging material comprises an inductor coil (101) configured to induce an alternating current in a metal foil of the packaging material for inductive heating thereof, and a magnetic insert (102) encapsulating the inductor coil (101) apart from an outer portion (103) thereof to be arranged towards the packaging material to be sealed. The magnetic insert (102) is configured to interact with the packaging material to be sealed via at least one interactive surface (104). The induction sealing device (100) comprises a connection unit (105). The connection unit (105) comprises a parallel connection (106) to the inductor coil (101) and is configured for connection to an AC power source. A corresponding method (200) of manufacturing an induction sealing device (100) is also disclosed.

Abstract: The present invention relates to a method and an apparatus for retrosealing, by means of induction sealing, an intersection zone (12) between two overlap joints (6, 11) in an at least partly formed packaging container (1) comprising a first and a second packaging part (2, 3). The first packaging part (2) is tubular and produced from a sheet of thermoplastically coated packaging material comprising at least one layer of an induction heatable material. The second packaging part (3) is sealed to the first end of the first packaging part (2).