| 摘要 |
A nonwoven industrial fabric, and a method of constructing the fabric. The fabric comprises at least one layer of a polymeric film having a plurality of apertures extending from an upper surface through to a lower surface. Adjacent pairs of the apertures define land areas therebetween, and selected land areas comprise protrusions extending from at least one of the upper surface and the lower surface of the layer to form a profile to the respective surface. The method comprises optionally pre-embossing the film, cutting the film to provide the plurality of apertures, applying pressure to selected land areas to form the protrusions to create a contoured profile, and treating the film to set the contoured profile. Additional surface treatment can be provided, and two or more layers can be secured over each other for multilayer fabrics. The invention provides a simplified and economical construction, while maintaining stability and strength.
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