| 摘要 |
<p>The filter bag is made of non-woven fabric, and is designed as disposable filter bag and flat bag having a first filter bag wall (32) and with a second filter bag wall. The surface wrinkles are formed in first filter bag wall. Each surface of fold areas is provided in surface of filter bag wall, such that portions protrude over surface of first filter bag wall. A filter bag wall connecting device such as distance-limiting device (35) is provided inside vacuum cleaner filter bag, to connect first filter bag wall in the region of the surface of fold, with second filter bag wall.</p> |
