Method of forming a 3-dimensional fiber and a web formed from such fibers
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United States of America Patent
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Issued Date -
Mar 4, 2004
app pub date -
Aug 30, 2002
filing date -
Aug 30, 2002
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Abandoned
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Abstract
A method of forming 3-dimensional fibers is disclosed along with a web formed from such fibers. The method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R.sub.1 and the second component has a recovery percentage R.sub.2, wherein R.sub.1 is higher than R.sub.2. The first and second components are directed through a spin pack to form a plurality of continuous molten fibers. The molten fibers are then routed through a quenching chamber to form a plurality of continuous cooled fibers. The cooled fibers are then routed through a draw unit to form a plurality of continuous, solid linear fibers. The solid fibers are then accumulated and stretched by at least about 50 percent. The plurality of stretched fibers are then cut and allowed to relax such that a plurality of 3-dimensional, coiled fibers is formed.
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