Spunbond nonwoven laminate and method of making same

US11591728B2 · kind B2 · utility

Assignee

• 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: Dec 1, 2018
• Grant date: Feb 28, 2023
• Expiry date: Oct 4, 2039

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D04H3/16
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A spunbond nonwoven laminate has a stack of at least two and at most four spunbond nonwoven layers each formed by or consisting of crimped continuous filaments. A degree of crimping of the filaments in each of the spunbond nonwoven layers is different from a degree of crimping in each of the other spunbond nonwoven layers and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments each having at least one first plastic component and at least one second plastic component with each of the plastic components being present in the respective filament in a proportion of at least 10 wt %.