Composite false-twist yarns, methods and apparatus

Abstract

Abstract Composite false-twist yarns, method and apparatus, wherein continuous strand elements from their respective supply sources, for example, rovings, (at least three) and preferably four or more ends thereof while directly fed from their supply sources are air-jet spun and twisted simultaneously, whereby stable composite twisted yarns, with or without pairing and cabling, may be produced as end products, suitable, for example, for carpet and upholstery fabrics, the final yarn products being characterized by stabilized false twist zones, such stabilization being provided by interspersed or intermediate zones of opposite twist and, preferably, in addition, with intermingling (or interlacing) parts of (or whole) yarn elements including regular or irregular repeated interlacing of interchanged yarn elements to provide successively different pairing of said elements between (at least three) yarn elements, and preferably between pairs thereof; the apparatus for such operations including relatively high speed and high pressure air-jet means tangentially and successively applied to the individual yarn elements constantly and uniformly separately fed through converging air passages from their respective supply sources, with the converging passages terminating, for example, at a hollow truncated discharge cone, whereby the twisted yarn elements are assembled and combined to provide the final yarn products.

Inventors

• 👤 J Shah

Bibliographic Details