Abstract: A nanofiber yarn assembly including a longitudinally extending core for the yarn assembly and, twisted about the core, at least one ribbon of multiple nanofibers. The yarn assembly can be formed by drawing a longitudinally extending core for the yarn assembly through a concentric core-spinning zone, and, as the core travels through the core-spinning zone, twisting at least one ribbon of multiple nanofibers about the travelling core. Apparatus is also disclosed.

Abstract: A nanofibre yarn assembly including a longitudinally extending core for the yarn assembly and, twisted about the core, at least one ribbon of multiple nanofibres. The yarn assembly can be formed by drawing a longitudinally extending core for the yarn assembly through a concentric core-spinning zone, and, as the core travels through the core-spinning zone, twisting at least one ribbon of multiple nanofibres about the travelling core. Apparatus is also disclosed.

Abstract: The present invention is directed to methods of making nanofiber yarns. In some embodiments, the nanotube yarns comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air.

Abstract: A textile machine segment including a first or main roller (12) adapted to support and convey a travelling fibre web, associated second (16) and third (14) rollers cooperable with each other and at respective nips (24, 25) with the first roller as the three rollers rotate, to open the web and detach a mat of fibre tufts at the nip (25) between the first and second rollers and to return the tufts to the first roller at the nip (24) between the first and third rollers, and drive means (100) for rotating the rollers, wherein the drive means is arranged to rotate the second roller in a rotational direction that is the same as that of the first roller and opposite that of the third roller.

Abstract: A textile machine segment including a first or main roller (12) adapted to support and convey a travelling fibre web, associated second (16) and third (14) rollers co-operable with each other and at respective nips (24, 25) with the first roller as the three rollers rotate, to open the web and detach a mat of fibre tufts at the nip (25) between the first and second rollers and to return the tufts to the first roller at the nip (24) between the first and third rollers, and drive means (100) for rotating the rollers, wherein the drive means is arranged to rotate the second roller in a rotational direction that is the same as that of the first roller and opposite that of the third roller.

Abstract: Card clothing comprises a strip of profile wire having a plurality of longitudinally aligned teeth (110) with respective overhanging tips (111). The edge-face (112) of each tooth under the overhanging tip includes at least one undercut edge-segment (114) spaced along the edge-face from the tip. This undercut edge-segment increases the retention of fibres by the edge-face during carding.