Yarn false twist texturing apparatus

US6430912B1 · kind B1 · utility

Assignee

• Barmag AG · DE

Inventors

• Friedhelm Lenz · Wuppertal, DE
• Hellmut Lorenz · Lennep, DE

Key dates

• Filing date: Jan 29, 2001
• Grant date: Aug 13, 2002
• Expiry date: Jan 29, 2021

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D02J13/003
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A yarn false twist texturing apparatus having a plurality of side by side processing stations for texturing a plurality of thermoplastic yarns, wherein at each station a first feed system withdraws the yarn from a feed yarn package, and advances the yarn to a false twist zone composed of a heater and a cooling device, as well as a twisting unit. A second feed system withdraws the yarn from the false twist zone and advances it to a takeup device. The cooling device includes a cooling tube, with the yarn spiraling in contact with its outer surface. For an intensive cooling of the yarn according to the invention, the cooling tube is cooled from the inside with a coolant flow, which flows in a direction opposite to the direction of the advancing yarn.