| 摘要 |
A multi-layer fabric with paperside to lower surface weft ratios of greater than 1 in which all paperside weft yarns interlace with the warp yarns in an identical manner. The paperside weft yarns intermittently buttress against adjacent paperside weft yarns an d possess an average lateral crimp ratio of greater than 1.62 giving a fabric having an air permeability of less than 275 c.f.m. at 1/2 inch water pressure.
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