Process and device for the spinning of fibers

US4825633A · kind A · utility

Assignee

• Schubert & Salzer · DE

Inventors

• Peter Artzt · Reutlingen, DE
• Kurt Ziegler · Owen, DE
• Harald Dallmann · Reutlingen, DE
• Gerhard Egbers · Reutlingen, DE

Key dates

• Filing date: Sep 3, 1987
• Grant date: May 2, 1989
• Expiry date: Sep 3, 2007

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H5/18
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Fiber material to be spun is presented to drafting equipment in the form of a fiber sliver and is subjected to pre-stretching and main stretching in such drafting equipment. While being stretched, the fiber sliver is gathered together to a minimum width which amounts to at least 1.5 times the diameter of a torsion device to be used with the sliver. After being thus gathered together, the fiber sliver is not further gathered together before having torsion imparted thereto while such diameter is maintained. The width of a condenser situated upstream from the main stretching field amounts here to at least 1.5 times the diameter of a pneumatic torsion device situated downstream from such field. The injector component and torsion component of such torsion device are of identical diameter, from their intake opening to their outlet opening. In this way, hairy and soft yarns, similar to ring yarn, are produced.