Apparatus and method for dry forming a uniform non-woven fibrous web
US8122570B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 14, 2010 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/425
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method is disclosed for dry forming a uniform non-woven fibrous web. The apparatus includes a transport duct, a spreading member and a discharge member connected in series. The discharge member has a flexible plate and a plurality of screws which act upon the flexible plate to deflect its inner surface and provide further control of the basis weight of the to be formed fibrous web. The apparatus also has a forming zone located below the discharge member. The method combines a plurality of individual fibers with a pressurized gaseous stream and routes this stream through the apparatus to form the uniform non-woven fibrous web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.