The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Feb. 24, 2021
Lenzing Aktiengesellschaft, 4860 Lenzing, AT;
Ibrahim Sagerer-Foric, 4840 Vöcklabruck, AT;
LENZING AKTIENGESELLSCHAFT, Lenzing, AT;
Abstract
A process for the production of spunbonded nonwoven () is shown, wherein a spinning mass () is extruded through a plurality of nozzle holes () of at least one spinneret () to form filaments () and the filaments () are drawn, in each case, in the extrusion direction, wherein the filaments () are deposited on a perforated conveying device () to form a spunbonded nonwoven () and wherein the nozzle holes () of the spinneret () are arranged along a main axis () oriented in a transverse direction () to the conveying direction () of the conveying device () so that the spunbonded nonwoven () formed on the conveying device () extends in this transverse direction (). So as to enable the spinning width and the basis weight distribution of the spunbonded nonwoven to be adjusted reliably and, respectively, to allow the basis weight distribution to be kept constant during operation by means of the process, it is suggested that the spinning mass throughput () of the nozzle holes () is adjusted variably along the transverse direction ().