Patent · US Active

Method of making a spunbond from filaments

US10428443B2 · kind B2 · utility

0Cited by

4References

12Claims

0Family size

Assignee

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

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

Key dates

Filing date	Nov 25, 2013
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Oct 8, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/731
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a device for producing a spun-bonded web from filaments, comprising spinnerets, a cooling chamber into which process air can be introduced in order to cool the filaments, a monomer suction device arranged between the spinnerets and the cooling chamber, a stretching unit, and a placing device for placing the filaments so as to form the spun-bonded web. The cooling chamber is divided into two cooling chamber portions. Process air can be suctioned out of a first upper cooling chamber portion to the monomer suction device with a volumetric flow rate Vm, and process air exits the first upper cooling chamber portion into a second lower cooling chamber portion with a volumetric flow rate V1. The volumetric flow rate ratio VM/V1 is 0.1 to 0.3.

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