Process for preparing multifilament wet-spun elastane threads

US5670105A · kind A · utility

Assignee

• Bayer Faser GmbH · DE

Inventors

• Ulrich Reinehr · Dormagen, DE
• Gunter Turck · Dormagen, DE
• Tilo Sehm · Düsseldorf, DE
• Wolfgang Anderheggen · Dormagen, DE
• Toni Herbertz · Dormagen, DE
• Gino Antolini · Bergamo, IT

Key dates

• Filing date: Feb 6, 1996
• Grant date: Sep 23, 1997
• Expiry date: Feb 6, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2967
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a process for preparing multifilament, wet-spun elastane threads with increased spinning output, which is achieved by largely removing entrained water from the filaments after leaving the spinning bath and then fixing the threads on at least two rollers at a temperature of at least 200.degree. C. for at least 3 seconds.