Stretch nonwoven fabric

Details Stretch nonwoven fabric Stretch nonwoven fabric

2007-05-18

2011-11-08

Torres-Velazquez, Norca L (Department: 1786)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

C428S213000, C428S364000, C428S365000, C442S328000, C442S329000, C442S336000, C442S381000, C442S389000, C442S409000, C442S411000, C156S161000

Reexamination Certificate

active

08053074

ABSTRACT:
A stretch nonwoven fabric10contains inelastic fibers having a varied thickness along the length and elastic fibers. The nonwoven fabric10preferably includes an elastic fiber layer1and a substantially inelastic, inelastic fiber layer2on at least one side of the elastic fiber layer1. The fibers with a varied thickness along the length are contained in the inelastic fiber layer2. The nonwoven fabric10is conveniently produced by (a) superposing a web containing low-drawn, inelastic fibers having an elongation of 80% to 800% on at least one side of a web containing elastic fibers, (b) subjecting the webs, while in a non-united state, to through-air technique to obtain a fibrous sheet having the webs united together by thermal bonding the fibers at their intersections, and (c) stretching the fibrous sheet in at least one direction to draw the low-drawn inelastic fibers, followed by releasing the sheet from the stretch.

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