| 摘要 |
The bag has side foldings formed from folding side pieces, where the bag is designed as a tubular bag. One of the side foldings has three edges (206) in an evertable condition, where two of the edges are formed by a welded seam. The side foldings are everted with the edges formed by the welded seam, where the bag is made from material having a non-woven layer. The edges are designed in a curved manner, and comprise different lengths. Sides of the bag are formed by transverse welding seams (204, 205), and a longitudinal welding seam (203) runs perpendicular to the transverse welding seams. An independent claim is also included for a method for manufacturing a vacuum cleaner filter bag. |
