Patent · US Active

Eccentric polyester-polyethylene-bicomponent fibre

US7927530B2 · kind B2 · utility

2Cited by

5References

19Claims

0Family size

Assignee

Trevira GmbH · DE

Inventors

Jorg Dahringer · Bobingen, DE
Michael Klanert · Schwabmünchen, DE
Hartmut Huth · Flörsheim, DE

Key dates

Filing date	Jul 26, 2003
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Jun 17, 2026

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F8/06
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for producing a skin/core type eccentric biocomponent fiber which is soft to touch and has improved latent crimp. An eccentric skin/core fiber which has a skin portion in relation to the cross-section of the fiber of 35%-70% is produced by melt spinning polyester as a core component and polyethylene as a skin component at a spinning speed of between 600 m/min-2000 m/min. The thus-obtained fiber stretches at a temperature of between 40° C.-70° C. at a ratio Wmax±20% and is then compressed in a crimped manner. The fiber, which is produced in such a manner, is very soft to touch and has an additional latent crimp. The fibrer are particularly suitable for producing hygiene products such as hygienic non-woven fabrics, and all kinds of hygienic textile flat items for producing nappies, bandages, inserts, cotton buds, and the like.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.