Packaging material comprising magnetisable portions
AssigneeTetra Laval Holding & Finance S.A.
InventorsTommy Nilsson, Lars Bergholtz, Ann-Charlotte Kint
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Abstract
A packaging material comprising a plurality of magnetisable portions thereon comprising at least one spot per package to be formed from the packaging material is disclosed. At least one of the magnetisable portions provides a first magnetic mark carrying a magnetic field pattern providing position information related to finishing of respective package to be formed.
Claims15
A web- or sheetlike packaging material to be reformed into a tube to be sealed at one end, filled with content, sealed again to enclose the content, cut, and formed to a package, comprising a plurality of magnetisable portions thereon comprising at least one spot per package to be formed from the packaging material, wherein at least one of the magnetisable portions provides a first magnetic mark carrying a magnetic field pattern providing position information through which any twist of the formed tube can be detected and corrected.
Dependencies are inferred from the claim text.