Negative polarity on the nanofiber line
US9365951B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Dec 25, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A centrifugal spinning system and method for forming a fibrous web containing nanofibers, microfibers, or a combination thereof from a molten polymer composition or an aqueous spinning solution is provided. Through careful control over the arrangement of the system, a fibrous web can be formed that is relatively defect free. To help accomplish this feature, at least two centrifugal spinning chambers, each containing a charged forming plate, are utilized. To minimize the present of defects in the fibrous web, the charge applied to the first spinning chamber has a polarity that is opposite the polarity of the charge applied to the second spinning chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.