Nonwoven fabric laminate with enhanced barrier properties
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United States of America Patent
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Nov 18, 1997
Grant Date -
N/A
app pub date -
Nov 8, 1996
filing date -
Apr 5, 1994
priority date (Note) -
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Abstract
There is provided a laminate of nonwoven fabrics for barrier applications which has improved ratios of barrier and strength to weight, of softness to strength and of vapor transmission to barrier. The laminate has a meltblown layer sandwiched between spunbond layers to produce an SMS laminate. The meltblown and spunbond layers may have between 0.1 to 2.0 weight percent of a fluorocarbon and the meltblown layer preferably between 5 and 20 weight percent polybutylene. The laminate also may have pigments if desired. Such laminates are useful for garments.
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