| 摘要 |
A composite sheet having a surface layer (17) of resin-impregnated pile-like vertical fibers (10) provides the sheet with unusually high resistance to abrasive wear. The surface layer (17) has a combination of characteristics that includes an effective pile-fiber concentration of 0.1 to 0.5 g/cm3, an over-all density of at least 0.4 g/cm3, a resin content of 25 to 90 weight % and a pile parameter of at least 0.3 grams/cm3. Preferably, the pile-like fibers (10) contained within the surface layer (17) are derived from particular contracted knit fabrics or contracted two-bar stitchbonded fabric s (20).
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