Abstract: A method for producing cardable, hydrophobic polyolefin-based staple fibers by applying to spun filaments a first spin finish comprising at least one cationic antistatic agent, in particular a quaternary ammonium salt, stretching the filaments, applying to the stretched filaments a second spin finish in the form of a dispersion comprising at least one hydrophobic lubricant selected from a fatty acid amide condensation product and a hydrocarbon wax, the second spin finish optionally further comprising a polydiorganosiloxane in an amount of up to 15% by weight, and crimping, drying and cutting the filaments to obtain staple fibers; as well as textured, cardable, polyolefin-based staple fibers prepared by the method and hydrophobic nonwoven materials produced from such fibers.

Abstract: Thermobondable bicomponent synthetic fibers comprising a high-melting core component comprising a high density polyethylene with a density of more than 0.950 g/cm.sup.3, and a low-melting sheath component comprising a linear low density polyethylene with a density of less than 0.945 g/cm.sup.3, typically 0.921-0.944 g/cm.sup.3 are suitable for use in making non-woven fabrics. The fibers are particularly suitable for the preparation of thermally bonded non-woven fabrics for medical use and for non-wovens having superior softness.