Non-woven fabric and method and apparatus for making the same
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United States of America Patent
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May 17, 1994
Issued Date -
N/A
app pub date -
Dec 4, 1990
filing date -
Jan 27, 1989
priority date (Note) -
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Abstract
A non-woven fabric is characterized by including a filament layer in which one or more continuous filaments composed of a polymeric material are spirally collected substantially along a shape obtained by offsetting an ellipse having an elongated major axis in a plane. This non-woven fabric can be obtained by spinning a filament composed of a polymeric material, vibrating the filament, amplifying vibration of the filament, and collecting the filament into an elliptic shape having an elongated major axis so that the filament is arranged in a direction of the major axis.
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