Patent · US Expired

Arrangement for the continuous production of a filament nonwoven fibrous web

US6918750B2 · kind B2 · utility

15Cited by

3References

20Claims

0Family size

Assignee

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

Hans-Georg Geus · Niederkassel, DE
Detlef Frey · Niederkassel, DE
Peter Schlag · Troisdorf, DE

Key dates

Filing date	Feb 27, 2003
Grant date	Jul 19, 2005
Priority date	—
Expiry date	Sep 1, 2023

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01D5/0985
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A spun-bond web-making apparatus has the cooling passage below the spinneret provided with a plurality of air chamber sections which are supplied with air at different temperatures, the cooling passage being connected to the drawing unit for aerodynamic stretching of the filaments without a gap through which external air can be supplied.

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