| 摘要 |
Packaging for liquids and process and apparatus for its manufacture Described is a packaging for liquid, made of cardboard, which is made impermeable to liquid by means of a plastic coating over its surface. It has side-walls, base and top wall (5), connected to one another by folded and/or sealed seams. A pouring aperture is located in top wall (5) close to the edge line, and can be torn off and has a separate plastic strip (8) covering the pouring aperture and being appliedround the edge of the pouring aperture, and is sealed on at least from the inside. So that the edge of the pouring aperture remains covered with a protective layerafter opening and so that the closure and the protective layer can be produced with simple means, according to the invention the plastic strip 8 covers the pouring aperture tightly and is fixed via two tacked strips (7, 31) to an outer cover strip, in which a hole (15) is located above the pouring aperture, the two tacked strips being smaller than the surface area of cover strip (6), the first tacked strip (7) being applied at a distance from hole (15) and outside the pouringaperture, the second tacked strip (31) being applied outside hole (15) of coverstrip (6) and within the pouring aperture 116), the outer cover strip (6) beingfixed to the top wall (5) of the packaging via a third tacked strip (9) lying outside the plastic strip (8). |
