Patent · US Expired

Apparatus for the continuous production of spun-bond web

US6932590B2 · kind B2 · utility

5Cited by

5References

11Claims

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	Aug 23, 2005
Priority date	—
Expiry date	Aug 30, 2023

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD04H3/16
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An apparatus for producing spun-bond webs has, beneath the receiving belt, a suction unit having at least two suction zones including a primary suction zone and at least one other suction zone, the primary suction zone receiving most of the filaments from an aerodynamic stretching unit below a spinneret. The suction speeds in the two zones can be adjusted independently of one another. Preferably three such zones are provided in succession in the direction of displacement of the perforated belt.

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