Method for producing self-crimping polymer bi-component fibers

US5701644A · kind A · utility

Assignee

• EMS-Inventa AG · CH

Inventors

• Werner Kaegi · Domat/Ems, CH
• Werner Stibal · Trimmis, CH
• Gunther Schaech · Chur, CH
• Rainer Straub · Entringen, DE
• Gerhard Schmidt · Graz, AT

Key dates

• Filing date: May 6, 1996
• Grant date: Dec 30, 1997
• Expiry date: May 6, 2016

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H13/26
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method for self-crimping of S/S bi-component fibers on a fiber line includes the steps of main drawing, post-drawing on a cold drawing unit, water application in the tensed state and relaxation at the dryer inlet in the compact closed state, which results in fibers with a novel .OMEGA.-shaped crimping structure.