| 摘要 |
PURPOSE:To provided a needle-punched nonwoven fabric having an excellent flexibility, good apparent quality grade and high modulus in a good operating property by heating and pressure-welding a web comprising specific thermoplastic synthetic fiber filaments under specified conditions and subsequently needling the welded web under a specified condition. CONSTITUTION:A web comprising thermoplastic synthetic fiber filaments having a single filament fineness of 1.5-15 denier is heated and pressure-welded with emboss rolls or with an emboss roll and a flat roll at a temperature lower 10-100 deg.C than the melting point of the synthetic fibers and at a heating pressure- welding area rate of 10-40% and subsequently needled at a needling density of 20-80 times/cm<2> to provided a needle-punched nonwoven fabric suitable for industrial materials, interiors, etc. |
