Non-planar nonwoven fabrics and methods of making the same
US11427942B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Feb 21, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H13/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method of making a nonwoven fabric of continuous fibers that includes forming a nonwoven web on a highly porous woven or knitted forming fabric that defines a pattern of recesses that are bordered by spaced apart filaments extending between the outer surfaces of the fabric and that allows air to pass both downwardly and sidewardly through the forming fabric. Bonded nonwoven webs are formed having protrusions with very low density and high surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.