Meltblown barrier webs and processes of making same
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United States of America Patent
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Jul 8, 1997
Issued Date -
N/A
app pub date -
Jul 2, 1996
filing date -
Jun 7, 1995
priority date (Note) -
Expired
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Abstract
A nonwoven disposable face mask includes a filtration layer formed of a plurality of thermoplastic microfine meltblown microfibers having an average fiber diameter of less than 1.5 microns. The filtration layer also has a basis weight of less than ten grams per square meter. The resultant face mask provides improved wearer comfort and barrier and filtration properties.
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