Patent · US Active

Method and apparatus for making nonwoven fabric of crimped synthetic fibers

US12351948B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignees

Inventors

Patrick Bohl · Petershohn, DE
Hans-Georg Geus · Niederkassel, DE
Sebastian Sommer · Troisdorf, DE
Tobias Wagner · Cologne, DE
Kazuya Zeisho · Tokyo, JP

Key dates

Filing date	Jul 7, 2020
Grant date	Jul 8, 2025
Priority date	—
Expiry date	Sep 27, 2041

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD10B2321/022
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for producing a nonwoven fabric made of crimped synthetic fibers, wherein the synthetic fibers are spun and are deposited on a conveyor as a nonwoven web. The deposited nonwoven web is pre-bonded by means of at least one first hot-air bonding device, wherein a main suction air is sucked from below through the conveyor in the area of fiber deposition. A first suction air is sucked from below through the conveyor in the region of the first hot-air bonding device. The air speed of the main suction air is greater than the air speed of the first suction air.

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