| 摘要 |
PURPOSE:To provide a thermally adhesive spun bond nonwoven fabric having a good hand by melt-spinning specific two components in a sheath-core type, drawing the spun fibers with an air jet, collecting and subsequently heat-pressing the obtained fiber aggregate in a specific state. CONSTITUTION:A sheath component comprising straight chain low density polyethylene-octene-1 copolymer having a density of 0.90-0.94g/cm<2>, a melt index value of 5-45g/10min and a fusion heat of >=25cal/g by DSC method, the content of the latter being 1-10wt.%, and a core component comprising polypropylene having a melt flow rate value of 5-45g/10min are melt-spun and subsequently drawn with an air jet to form conjugate fibers having a single fiber fineness of <=5de, followed by collecting the conjugate fibers on a porous collecting belt to give a fiber aggregate. The obtained fiber aggregate is treated at a temperature lower 15-30 deg.C than the melting point of the sheath component at a pressed area rate of 7-40% to provide a nonwoven fabric having a weight of 10-200g/cm<2>. |
