Spinning device and method having cooling by blowing
US7364681B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 11, 2002 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Nov 11, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an apparatus for producing continuously molded bodies from a molding material, such as a spinning solution containing cellulose, water and tertiary amine oxide. The apparatus (1) comprises a die plate (3) including extrusion orifices (4) through which the molding material is extruded into substantially filament-like continuously molded bodies (5). The continuously molded bodies (5) are passed through an air gap (6) and guided in a precipitation bath (9) by a deflector (10) to a bundling means (12) where they are united into a bundle of fibers. In the air gap, a blowing means (14) is provided for directing a cooling gas stream (15) onto the continuously molded bodies (5) in a direction transverse to the direction of passage (7). To improve the spinning stability and mechanical properties of the continuously molded bodies, it is intended according to the invention that directly with respect to the extrusion orifices (4) a first shielding zone (20) is arranged by which the extrusion orifices are shielded against the action of the cooling gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.