Loading patent…
AssigneePacksys Global AG
InventorsDaniel Schuhn, Ulrich Esser
Estimating the term…
The invention relates to a method for producing flexible tube bodies (18) for packaging tubes from a film substrate (1) which has a print, preferably on an outer side (2), and which has or consists of at least one weldable plastic layer and which comprises a first longitudinal edge side (8), which extends in a longitudinal direction, and a second longitudinal edge side (8′) parallel thereto and spaced apart therefrom, wherein the film substrate (1) is shaped by shaping means (23) to form a tube, and the two longitudinal edge sides (8, 8′) are in particular welded to one another with the formation of a longitudinal weld seam, wherein a strip (12) is arranged, in the region of the abutment point and/or of the longitudinal weld seam, in the interior (17) of the film substrate (1) shaped to form the tube and is connected, in particular welded, to the longitudinal edge sides (8, 8′) at least in certain regions or portions. According to the invention, prior to the formation of the longitudinal weld seam, at least one longitudinal edge side (8′) is shaped, in particular cut, in such a way that, in the film substrate (1) shaped to form the tube, the longitudinal edge sides (8, 8′) bear against one another, in particular in abutting fashion, radially only in the region of the outer side (2) with at least one tip (9) formed by the shaping operation.
A method for producing flexible tube bodies for packaging tubes from a film substrate (1) having an outer side (2) and having or consisting of at least one weldable plastic layer and comprising a first longitudinal edge side (8) extending in a longitudinal direction and a second longitudinal edge side (8) parallel thereto and spaced apart therefrom, the method comprising:
A flexible tube body for packaging tubes, made of a film substrate (1) having an outer side (2), the film substrate (1) having or consisting of at least one weldable plastic layer and comprising a first longitudinal edge side (8) extending in a longitudinal direction (L) and a second longitudinal edge side (8) parallel thereto and spaced apart therefrom, the film substrate (1) being deformed into a tube shape and the two longitudinal edge sides (8) being welded to one another by means of a longitudinal weld seam, a strip (12) being arranged in the area of the joint and/or of the longitudinal weld seam inside (17) the film substrate (1) deformed into the tube shape and being connected, to the longitudinal edge sides (8) at least in some areas or sections,
A device for producing flexible tube bodies for packaging tubes from a film substrate (1) having an outer side (2) and having or consisting of at least one weldable plastic layer and comprising a first longitudinal edge side (8) extending in a longitudinal direction and a second longitudinal edge side (8) parallel thereto and spaced apart therefrom, the film substrate (1) being deformed into a tube shape by a mandrel and the two longitudinal edge sides being welded to one another, a longitudinal weld seam being formed in the process, a strip (12) being arranged in the area of the joint and/or of the longitudinal weld seam inside (17) the film substrate (1) deformed into the tube shape by a circulating contact belt and being connected to the longitudinal edge sides (8) at least in some areas or sections by a welding unit, further comprising a knife for reshaping at least one longitudinal edge side (8′) before the longitudinal weld seam is formed, the mandrel for forming the tube shape being realized in such a manner that the longitudinal edge sides (8, 8′) of the film substrate (1) deformed into the tube shape contact one another edge to edge, radially only in the area of the outer side (2) via at least one tip (9) formed by the knife.
Dependencies are inferred from the claim text.