Patent · US Active

Method of manufacturing a wet-laid nonwoven fabric

US11578439B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignees

Voith Patent GmbH · DE
Truetzschler GmbH & Co. KG · DE

Inventors

Thomas Weigert · Pocking, DE
Kai Poehler · Vettweiß, DE
Ralf Schroeder · Heimstetten, DE

Key dates

Filing date	Sep 11, 2017
Grant date	Feb 14, 2023
Priority date	—
Expiry date	May 31, 2039

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD04H18/04
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method of manufacturing a wet-laid nonwoven web includes the following steps: feeding a pulp suspension onto a forming screen for depositing a fibrous web thereon, wherein the pulp suspension has industrially produced, inorganic fibers or fibers of synthetically produced polymers and the pulp suspension is substantially free from binders, such as chemical binders, and hydraulic consolidation of the fibrous web to generate the nonwoven web through water jet needling of the fibrous web.

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