| 摘要 |
<p>A nonwoven fabric/film laminate material is particularly suited for use as a 'housewrap', or in like building construction applications. The laminate material comprises a spunbond polypropylene nonwoven fabric, and a breathable, polymeric film which is extrusion-coated onto the nonwoven fabric layer. Both the fabric layer and extrusion-coating can be formed in a cost-effective manner on conventionally available processing equipment. By appropriate selection of the nonwoven fabric layer and film properties, the present laminate material acts as an effective barrier to liquid water and air infiltration, while providing desirable permeability to water vapor.</p> |
