| 摘要 |
<p>An air and/or moisture vapour permeable and/or liquid impermeable non-woven fabric, which may be used as a construction fabric, such as in the building industry as a housewrap walling fabric for timber frame houses or as a roof tile underlay, may be produced by calendering a precursor non-woven fabric with a flat roll 105,110 to uniformly apply pressure and/or heat. The precursor material may comprise a spunbond material. Alternatively the precursor material may be bonded by point embossed calendar bonding. The material may a comprise composite or laminate with a plurality of layers at least one of which is a nonwoven fabric layer.</p> |
