| 摘要 |
<p>The invention relates to an improvement of a foil bag which comprises flattened and optionally side folded foil bag portions, provided with a sealed bottom. Such foil bags, usually manufactured from polyethylene(PE) foil, are used in a packaging-machine, which is operated to open and subsequently position the bag into a box, crate or container. The foil bag is provided adjacent to its upper edge with one or more openings (6) having a diameter which is substantially equal or even greater than the external pin diameter of the support and whereas the foil bag is also provided with at least one foil bag portion provided with one or more incisions (10, 11) in the foil bag material at a certain distance from the opening in a circumferential direction, in such a way that during the opening process of the folded foil bag during a first step the front of the flat folded foil bag portion is pulled off the pin support and consequently during a second step the rearward flat foil bag portion is pulled off from the pin support in such a way that the incisions will remove the undesirable mutually adherence of the foil bag portions by introducing additional air between the opposite adhering foil bag portions while being pulled off the pin support so that the foil bag is completely and easily and problemless opened starting from the front flat foil bag portion whereafter the rearward flat foil bag portion is pulled off further from the pin support.</p> |
