Back to results
US 2006/0223405 A1Published application
Lightweight high-tensile, high-tear strength bicomponent nonwoven fabrics
AssigneeNorth Carolina State University
InventorsBehnam Pourdeyhimi, Nataliya Fedorova, Stephen Sharp
Life of this patent
Estimating the term…
Abstract
A method of producing a nonwoven fabric comprising spinning a set of bicomponent fibers which include an external fiber component and an internal fiber component. The external fiber enwraps said internal fiber and has a higher elongation to break value than the internal fiber and a lower melting temperature than the internal fiber component. The set of bicomponent fibers are positioned onto a web and thermally bonded to produce a nonwoven fabric.
Claims35
A method of producing a nonwoven fabric comprising:
- spinning a set of bicomponent fibers comprising
- an external fiber component;
- an internal fiber component;
- wherein said external fiber enwraps said internal fiber;
- said external fiber having a higher elongation to break value than said internal fiber;
- and
- said external fiber component having a lower melting temperature than said internal fiber component;
- positioning said set of bicomponent fibers onto a web;
- and
- thermally bonding said set of bicomponent fibers to produce a nonwoven fabric.
7 more elements
A method of producing a nonwoven fabric comprising:
- spinning a set of bicomponent fibers comprising
- an external fiber component;
- an internal fiber component;
- wherein said external fiber component enwraps said internal fiber component and said external fiber component has a lower melting point than said internal fiber component;
- positioning said set of bicomponent fibers onto a web;
- and
- forming a bonding matrix via thermobonding by completely melting an external fiber component of a respective bicomponent fiber of said set of bicomponent fibers at a bond interface with an adjacent bicomponent fiber of the set.
4 more elements
A nonwoven web comprising:
- substantially continuous thermoplastic bicomponent filaments comprising an external fiber component enwrapping at least two internal fiber components;
- and.
- said external fiber component having a lower melting point and higher elongation to break characteristic than said internal fibers.
Dependencies are inferred from the claim text.