Process for hydrodynamic inclusion of a multitude of...

D - Textiles – Paper – 04 – H

Patent

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D04H 1/46 (2006.01) D04H 3/10 (2006.01) D04H 5/02 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2502203

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.

La présente invention concerne des produits à dimensions finies qui doivent être emballés en continu entre deux non-tissés et fermés sur leur pourtour, à l'aide de l'aiguilletage hydrodynamique. A l'emploi, les non-tissés ne doivent pas donner une sensation accrue de rugosité et ils ne doivent pas non plus se lier aux produits lors de l'emballage. En outre, lors de l'emballage, lesdits produits doivent garder dans la mesure du possible un volume inchangé. La solution réside dans la fixation préalable des non-tissés de couverture à l'aide de l'aiguilletage hydrodynamique. On obtient des résultats particulièrement satisfaisants lorsque des non-tissés à trous sont utilisés pour couvrir les produits à dimensions finies, lesdits trous étant au nombre de 5 à 20 par pouce, et lorsque ces non-tissés sont reliés ensemble par un aiguilletage par jets d'eau.

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