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过滤袋及其生产方法
Filter bag and method for the production thereof
US-8002862-B2用于真空吸尘器的过滤袋，有效捕获灰尘。
专利摘要
描述了一种用于真空吸尘器的过滤袋，其可包括管状袋，具有封闭的自由端区域和相对的至少部分封闭的区域，以及保持板。袋由具有至少一个非织造层的袋材料制成，并且至少部分封闭的区域折叠形成底部，袋材料的叠置层在区域中形成，并且通过中心延伸在底部中的焊缝至少部分封闭，叠置的袋材料层至少部分地相互连接。
Original abstractDescribed is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag is made from a bag material having at least one non-woven layer, and the at least partially closed area is folded forming a bottomPlies of the bag material which lie the one above the other are formed in areas, and is at least partially closed by a weld seam extending centrally in the bottom, the plies of the bag material which lie the one above the other being at least partially connected to one another.
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