Laminating roller, a method for providing a packaging laminate, and a packaging laminate
AssigneeTetra Laval Holdings & Finance S.A.
InventorsIon Postoaca, Åke Persson, Sven Keiter, Krister Uvnäs, Andreas Hessmark, Magnus Just
Life of this patent
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Abstract
A laminating roller for laminating a sheet of a packaging laminate comprises at least one groove extending along the periphery of the roller and forming a border between two circumferential portions, wherein each of the two circumferential portions are extending continuously around the surface area of the roller. The laminating roller can also be used in a method for providing a packaging laminate.
Claims13
A laminating station comprising:
- a pair of rollers defining a nip therebetween, said pair of rollers including a laminating roller configured for laminating a sheet of a packaging laminate;
- said laminating roller comprising at least one groove extending along the periphery of said laminating roller and forming a border between two circumferential portions of said laminating roller;
- wherein each of said two circumferential portions extend continuously along the groove;
- and
- wherein the at least one groove is arranged at a position corresponding to a lateral location of a pre-laminated hole of the packaging laminate, when the packaging laminate is in contact and guided by means of the laminating roller.
A method for providing a packaging laminate, comprising the step of feeding a web of a core layer and at least one layer of thermoplastic material through a nip between a pair of rollers of a laminating station, said laminating station comprising:
- a pair of rollers defining a nip therebetween, said pair of rollers including a laminating roller configured for laminating a sheet of a packaging laminate;
- said laminating roller comprising at least one groove extending along the periphery of said laminating roller and forming a border between two circumferential portions of said laminating roller;
- wherein each of said two circumferential portions extend continuously along the groove;
- and
- wherein the at least one groove is arranged at a position corresponding to a lateral location of a pre-laminated hole of the packaging laminate, when the packaging laminate is in contact and guided by means of the laminating roller.
Dependencies are inferred from the claim text.