Spunmelt hydrophilic nonwoven material and method of producing
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United States of America Patent
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Issued Date -
Mar 4, 2004
app pub date -
Aug 28, 2002
filing date -
Aug 28, 2002
priority date (Note) -
Abandoned
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Abstract
A nonwoven material composed of hydrophobic material rendered hydrophilic through the inclusion of an internal additive is described. The nonwoven material includes at least one layer of which can be continuous filament spunmelt or meltblown. The layer can be provided alone or as one of a composite material. Hydrophilicity is imparted to the nonwoven material by inclusion of a surfactant additive in an extrusion melt during formation of fibers which will form a layer of nonwoven material. By controlling the internal additive utilized and modifying the type of fibers formed, e.g., continuous, non-continuous (staple), denier size, etc., the absorbency and barrier properties of a nonwoven material can be predetermined in view of the use to which the nonwoven material is to be applied.
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