Fibers suitable for the production of nonwoven fabrics having improved strength and softness characteristics
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United States of America Patent
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May 20, 1997
Grant Date -
N/A
app pub date -
Jun 13, 1994
filing date -
Jun 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a drawn, polyolefin fiber useful for nonwoven fabrics, the thermobonding index of said fiber being 4.5-9 Newtons, and the flexibility index thereof being 1020-1500. The fiber is composed of a blend of specified polymers. Also disclosed is a process for making the fiber by spinning the blend from a die hole having at the output end a diameter less than 0.5 mm, and drawing the resulting fiber at a draw ratio of 1.1 to 1.8.
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