Hydroentangled nonwoven fabrics, process, products and apparatus
US7779521B2 · kind B2 · utility
11Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fibers are hydroentangled at temperatures near or above their glass transition temperature, the resultant fabrics are then rapidly cooled. A process of preparing a nonwoven fabric that includes depositing fibers on a foraminous support; impinging hot or warm water upon the fibers to hydroentangle them; and then rapidly cooling the resultant fabric is disclosed. The hydroentangled fabric resulting from this process, products made from the hydroentangle fabric, and the equipment used to prepare the fabrics are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.