Three-dimensional non-woven media
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United States of America Patent
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Jan 17, 2006
Grant Date -
May 1, 2003
app pub date -
Oct 23, 2002
filing date -
Oct 23, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A non-woven melt-blown filament medium includes a mass of essentially continuous melt-blown polymer filaments and an essentially continuous traversing melt-blown polymer filament extending through the mass. The mass has a depth dimension, a longitudinal dimension, and a latitudinal dimension. The mass includes a plurality of layers, each of the plurality of layers being generally oriented in the longitudinal and latitudinal dimensions. The traversing filament is generally oriented in the depth dimension and extends through at least one layer of the mass. In one embodiment, the mass is cylindrical in shape and the layers comprise concentric zones. The traversing filament is intentionally deposited and positioned to improve the physical properties of the mass.
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