Provided herein is an electrodeposition apparatus for producing long polymeric threads, yarns, or ropes. A method of preparing long polymeric threads, yarns or ropes also is provided.

A process for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device.

A process for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device.

A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system is coupled to a chamber that generates nanomaterials, typically carbon nanotubes produced from chemical vapor deposition, and includes a mechanism for spinning the nanotubes into yarns or tows. Alternatively, the system includes a mechanism for forming non-woven sheets from the nanotubes. The system also includes components for collecting the formed nanofibrous materials. Methods for forming and collecting the nanofibrous materials are also provided.

A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system is coupled to a chamber that generates nanomaterials, typically carbon nanotubes produced from chemical vapor deposition, and includes a mechanism for spinning the nanotubes into yarns or tows. Alternatively, the system includes a mechanism for forming non-woven sheets from the nanotubes. The system also includes components for collecting the formed nanofibrous materials. Methods for forming and collecting the nanofibrous materials are also provided.

One aspect of the present disclosure relates to a method for manufacturing a spun yarn made of carbon nanotubes. The method includes: a spun yarn precursor α production step of producing a spun yarn precursor α by pulling a plurality of carbon nanotubes from a carbon nanotube forest and spinning the carbon nanotubes while applying a tension of 6 mN or less per centimeter of a width of the carbon nanotube forest to the carbon nanotubes; a spun yarn precursor β production step of producing a spun yarn precursor β by applying a higher tension than in the spun yarn precursor α production step to the spun yarn precursor α to densify the spun yarn precursor α; and a spun yarn production step of producing the spun yarn by electrically heating the spun yarn precursor β while applying a tension to the spun yarn precursor β.

One aspect of the present disclosure relates to a method for manufacturing a spun yarn made of carbon nanotubes. The method includes: a spun yarn precursor α production step of producing a spun yarn precursor α by pulling a plurality of carbon nanotubes from a carbon nanotube forest and spinning the carbon nanotubes while applying a tension of 6 mN or less per centimeter of a width of the carbon nanotube forest to the carbon nanotubes; a spun yarn precursor β production step of producing a spun yarn precursor β by applying a higher tension than in the spun yarn precursor α production step to the spun yarn precursor α to densify the spun yarn precursor α; and a spun yarn production step of producing the spun yarn by electrically heating the spun yarn precursor β while applying a tension to the spun yarn precursor β.

Yarns include one or more strands, each strand including an outer twisted with a continuous or substantially continuous core, the outer including coarse wool fibres. The coarse wool has average fibre diameter greater than 26 microns. The yarn may be worsted or semi-worsted. Fabrics and/or garments may be produced from the yarn.

This liquid-crystal polyester multifilament has a compression yield stress of 15-40 mN/dtex. The present invention provides a liquid-crystal polyester multifilament with which it is possible to realize much higher flexural fatigue resistance in comparison with the prior art when used in a high-level processed product.

Articles and devices comprising a multifunctional conductive wire having a first electrode including a first carbon nanotube composite yarn containing carbon nanotubes and secondary particles; a second electrode including a second carbon nanotube composite yarn containing carbon nanotubes and secondary particles; a first separator membrane surrounding the first electrode; a second separator membrane surrounding the second electrode; an electrolyte surrounding the first and second electrodes; a flexible insulator layer surrounding the electrolyte; and a flexible conducting layer at least partially surrounding the flexible insulator layer. Also provided are method of making and using the articles, devices, and multifunctional conductive wires herein.