| 摘要 |
Disclosed is bag manufacturing in which a bag wall 1 or similar is pierced with micro perforations 2, using a method or methods, that reduce stiction between layers of the bag, as a result of the perforation process. Methods that are selected to reduce the stiction of the film in the front and back walls significantly below the tear strength of the film in the film orientation direction, such as laser perforation. |
