Patent · US Active

Method of making a spunbond nonwoven laminate

US11898283B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignees

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE
FIBERTEX PERSONAL CARE A/S · DK

Inventors

Sebastian Sommer · Troisdorf, DE
Tobias Wagner · Cologne, DE
Gerold Linke · Petershohn, DE
Patrick Bohl · Petershohn, DE
Morton Rise Hansen · Aalborg, DK

Key dates

Filing date	Feb 3, 2023
Grant date	Feb 13, 2024
Priority date	—
Expiry date	Feb 3, 2043

Classification

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

Abstract

A spunbond nonwoven laminate has a plurality of stacked spunbond nonwoven layers, namely at least two and at most four spunbond nonwoven layers that have crimped continuous filaments or consist of crimped continuous filaments. The degree of crimping of the filaments is different in each of these spunbond nonwoven layers, and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two, preferably at least three, and more preferably with at least four loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments, particularly bicomponent filaments, with a first plastic component and a second plastic component present in the respective filament in a proportion of at least 10 wt %.

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