Fleissner Gmbh & Co Maschinenfabrik

Lohmann Gmbh & Co Kg

Fleissner Gmbh

Alfred Watzl

Gerold Fleissner

Ullrich Münstermann

Thomas Fechter

Martin Barth

Finite goods are continuously packed between two non-wovens by means of hydrodynamic needling and are fully sealed. When used, said wovens should not nap and should not become linked to the goods during packing. When packed, the volume of the goods should, wherever possible, remain unchanged. In order to achieve said aims, the covering non-wovens are prefixed by means of hydrodynamic needling. Particularly good results are achieved if perforated non-wovens are used to cover the finite products, the number of said perforations being approximately 5-20 perforations per inch, and when said non-wovens are joined to each other by means of water needling.

Process for hydrodynamic inclusion of a multitude of three-dimensional products of finite dimensions by water jets

Water needling is used to constantly subject the entire surface of a width of a goods line to water jets. However, it is also advantageous for units of commodity goods that are to be consolidated and optionally, if a cover nonwoven supporting these goods only needs to be consolidated around them or if a cover nonwoven is to be bonded around the goods. All possible patterns, such as line or strip consolidation, are advantageous. This is made possible by the invention, which provides for measures which specifically control, e.g. partially impede and/or interrupt the flow of the water jets from a water beam. This can occur by means of cover panels which advance with the line, supported by a screen or by means of a screen alone. Individually movable, computer-controlled nozzles are also advantageous for partial consolidation.

Method for hydrodynamically subjecting a goods line, optionally with finite preproducts, to water jets and nozzle device for producing liquid jets

Process for manufacturing a non-woven fabric by hydrodynamic needling,

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Rodermark, Germany

Alfred Watzl