| 摘要 |
<p>The present invention pertains to a tubular element for the formation of bags for the vacuum-packing of products, consisting of an inner layer or film (14) having thread-like elements (15), which extend along the length of the tubular element and are intended to be relief on at least on inner surface of the resulting bag and to define among themselves channels (16) for the evacuation, by suction, of air from the bag at the time of using the bag for the vacuum-packing of a product. <IMAGE></p> |
