Method for forming fibers
US7939010B2 · kind B2 · utility
5Cited by
57References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | May 3, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved method for creating fibers from a material dissolved in a solvent. In one embodiment, the method includes the steps of feeding a fiber making material dissolved in a solvent through a die including at least two rows of nozzles to form fiber strands. An attenuation medium is provided about the fiber strands. The attenuation medium is provided in a direction that is generally parallel to the fiber strands such that the attenuation medium elongates the fiber strands. The attenuation medium has a relative solvent-vapor content of at least about 50 percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.