COMPUESTOS ELASTICO QUE CONTIENE UN REVESTIMIENTO NO TEJIDO DE PESO LIGERO Y DE RESISTENCIA INFERIOR

An elastic composite formed from a lightweight nonwoven facing that has a low degree of strength in the cross-machine direction ("CD") is provided. Through selective control over certain parameters of the materials employed in the composite and the formation process, the present inventors...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SANABRIA LISA, HAYNES BRYAN D, SCHUMACHER IRIS V, LASLIE CHRISTOPHER, AUSTIN JAMES, THOMAS OOMMAN P, WELCH HOWARD MARTIN, MEYER STEPHEN CARL, SIQUEIRA JOSE A, NG WINGAK
Format: Patent
Sprache:spa
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An elastic composite formed from a lightweight nonwoven facing that has a low degree of strength in the cross-machine direction ("CD") is provided. Through selective control over certain parameters of the materials employed in the composite and the formation process, the present inventors have discovered that such low strength and lightweight facings may be readily laminated to an elastic film without significantly damaging their integrity. For example, in one embodiment, the elastic film may possess a multi-layered construction that includes an elastomeric elastic layer positioned adjacent to a strength-enhancing thermoplastic layer. The polymer content and thickness of the thermoplastic layer are generally selected to impart additional strength and integrity to the film. Likewise, the polymer content of the elastic layer may also be selected so that the film possesses a sufficient tack for adhering to the facing. In certain cases, it may be desirable to position the layer between two elastic layers so that the strength-enhancing layer does not substantially contact the nonwoven facing. In this manner, the strength-enhancing layer may avoid substantial damage during the lamination process.