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    • 89. 发明公开
    • MANUFACTURE OF A MULTI-LAYER FABRIC
    • 制备多层布
    • EP1774077A1
    • 2007-04-18
    • EP04735555.7
    • 2004-06-01
    • Dan-Web Holding A/S
    • PETERSEN, Jens, Erik, Thordahl
    • D04H13/00B32B5/26
    • B32B5/26B32B2038/0056D04H1/425D04H1/492D04H1/498
    • A method and an apparatus for manufacturing a multi-layer fabric are described, in­cluding at least one fibre layer formed by airlaying combined with at least on further layer which is formed by different technologies, e.g. carding, spunlacing, meltblowing, spunbonding, airlaying, or combined with one or more films. The airforming is performed on a separate formerwire which is applied vacuum via a suction box disposed opposite to a formerhead, and where the airformed fibre layer is transferred to a conveyor wire for joining with a further layer. In order to attain a energy economically and material saving manufacture of such fab­rics, edge trimming is performed at least on the airformed layer before it is joined with one or more other layers for forming the multi-layered fabric, and that the scrap from edge trimming and exhaust from the suction box is returned to the formerhead. By the invention it is possible to attain high production speeds and at the same time to get an energy economical production and simple construction which enable making multi-layer products in which one combines an airlaid fibre web with other webs for achieving desirable properties in the multi-layered product.