| 摘要 |
PURPOSE:To provide both the water exhausting property owing to conventional unwoven cloth and high strength at low strain compatibly by forming a laminate unwoven cloth from a knit textile layer of plastic multi-filaments, which have specified modulus of tensile elasticity and tensile strength, and an unwoven cloth layer of plastics. CONSTITUTION:A laminate unwoven cloth layer is prepared by laminating and binding together a knit textile layer and an unwoven cloth layer, wherein the knit textile layer consists of plastic multi-filaments, used at least in one direction, which are an elongated substance of preferably superhigh molecular polyethylene having a modulus of tensile elasticity over 20 GPa, favorably over 50 Pga, by the testing method according to JIS L-1013 and also a tensile strength over 1.2 GPa, desirably over 1.5 GPa, while the unwoven cloth layer as later named component is prepared by arranging at random plastic long or short fibers, preferably long. |
