Process for producing cellulose fibres

US6103162A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Konrad Frigge · Potsdam, DE
• Hans-Peter Fink · Teltow, DE
• Peter Weigel · Borchen, DE
• Ernst Walenta · Potsdam, DE
• Helmut Remde · Potsdam, DE

Key dates

• Filing date: Dec 14, 1998
• Grant date: Aug 15, 2000
• Expiry date: Dec 14, 2018

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01F11/02
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a process for producing flexible cellulose fibres by spinning solutions of the cellulose through spinnerets over an air layer in an amine oxide-containing aqueous and/or alcoholic regenerating bath followed by drying, in which the damp threads from the spinneret are taken before drying through at least one post-treatment bath containing water and water-miscible alkanols, diols, triols or mixtures thereof, and a washing bath containing water, an alkanol, a diol or a triol.