Patent · US Active

Method and apparatus for making a spunbond nonwoven from endless filaments

US10465319B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

Michael Nitschke · Rübhausen, DE
Martin Swiatek · Rheinbach, DE
Martin Neuenhofer · Rösrath, DE
Hans-Georg Geus · Niederkassel, DE
Detlef Frey · Niederkassel, DE

Key dates

Filing date	Jan 25, 2017
Grant date	Nov 5, 2019
Priority date	—
Expiry date	Dec 9, 2037

Classification

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

Abstract

An apparatus for making a spunbond nonwoven from endless filaments of a thermoplastic synthetic resin has a spinneret for spinning the filaments in a filament-travel direction into a spinning zone and a monomer aspirator downstream of the spinneret and having two vacuum intake ports flanking the spinning zone zone, horizontally confronting each other, and each extending transversely to the direction opposite one another. Suction means connected to the two ports withdraws gas through both the vacuum intake ports. The suction and/or the ports are set up to vary the flow through the vacuum intake ports such that substantially more gas flows through one of the ports than through the other.

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