NONWOVENS HAVING REDUCED POISSON RATIO

Nonwoven materials having a pattern incorporated into the materials are disclosed. The nonwoven materials may be, for instance, tissue webs, meltspun webs such as meltblown webs or spunbond webs, bonded carded webs, hydroentangled webs, and the like. The pattern may be incorporated into the webs usi...

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Bibliographische Detailangaben
Hauptverfasser:	BURAZIN, MARK, GARNESKI, CHARLES, J, TIRIMACCO, MAURIZIO, ZWICK, KENNETH, J, ANDERSON, RALPH, L, VARONA, EUGENIO, G, STAGE, DOUGLAS, W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS IMPREGNATING OR COATING OF PAPER KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER NON-WOVEN FABRICS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TRIMMINGS WADDING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	Nonwoven materials having a pattern incorporated into the materials are disclosed. The nonwoven materials may be, for instance, tissue webs, meltspun webs such as meltblown webs or spunbond webs, bonded carded webs, hydroentangled webs, and the like. The pattern may be incorporated into the webs using various techniques. For instance, the pattern may be formed into the web by topically applying a bonding material. In an alternative embodiment, the pattern may be formed according to a thermal bonding process. The pattern contains individual cells that include two spaced apart expanded regions separated by a constricted region. By incorporating the pattern into the web, a material is produced having a relatively low Poisson ratio. L'invention concerne des matériaux non tissés présentant un motif incorporé dans ceux-ci. Ces matériaux peuvent être, par exemple, des bandes de tissu, des bandes filées en fusion, telles que des bandes de fusion-soufflage ou des bandes spunbond, des bandes de fusion-cardage, des bandes hydoliées et analogue. Le motif peut être incorporé dans les bandes au moyen de diverses techniques. Par exemple, le motif peut être formé dans la bande par application topique d'un matériau liant. Dans un autre mode de réalisation, le motif peut être formé conformément à un procédé de fusion thermique. Le motif comprend des cellules individuelles possédant deux régions expansées, espacées l'une de l'autre et séparées par une région restreinte. L'incorporation du motif dans la bande permet de produire un matériau possédant un coefficient de Poisson relativement faible.