Strip splicing
AssigneeTetra Laval Holdings & Finance S.A.
InventorIngemar Larsson
Life of this patent
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Abstract
The present invention concerns a method of splicing two sealing strips and a sealing strip formed by the method. The sealing strip is placed at longitudinal edges of a packaging material web, used for packaging containers for liquid foods. The sealing strips to be spliced are cut each forming an oblique edge of about 45°, as seen in plan view. The oblique edges are then placed one on top of the other forming an overlapping area. The overlapping area is in the form of an oblique band having a length of about 3 mm. The ends of the sealing strips are then fused together by heating both from one side at the overlapping area.
Claims9
A method of splicing a sealing strip to be placed at longitudinal edges of a packaging material web, which packaging material web is used for packaging containers for liquid foods, the method comprising cutting the ends of two sealing strips to be spliced to each form an oblique edge and placing the ends of the sealing strips on top of each other forming an overlap between the oblique edges of the sealing strips.
Dependencies are inferred from the claim text.