| 摘要 |
<p>1. A packaging means for liquids comprising cardboard, paper or the like, which is imprevious to liquid at least on its inside by virtue of a plastics coating and which is provided at least at one side with a double-walled triangular flap (4) whose interior communicates with the interior of the packaging means, wherein a grippable, doubled cardboard strip (2) having a selaing seam is disposed in the upper triangular wall (8) of the triangular flap (4), extending from the tip (3) thereof into the adjacent upper wall panel (1) of the packaging means, and at least one of the two triangular walls (8, 9) of the triangular flap (4) is partially punched into along a line (20) and disposed therebeside, on the side remote from the tip (3) of the triangular flap (4), is a weld seam (22, 23) by means of which the two triangular walls (8, 9) are liquid-tightly welded together, characterised in that the weld seam (22, 23) extends substantially transversely through the doubled cardboard strip (2), in the region of the weld seam (22, 23) the various superposed wall layers (8, 9, 8', 8", 8'") are compressed to almost equal thickness (D), and that the punched line (20) is produced only from one surface of the cardboard layer in such a way that the other surface remains completely untouched.</p> |
