Process and apparatus for producing yarns
US4124972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1977 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | May 18, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H1/115
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus suitable for producing a spun yarn at high speed from short fibers less than 50 mm. in length. A bundle of fibers having a particular thickness distribution in its width direction is supplied through a fluid jet false-twist nozzle in which a throttle portion connecting the upstream and downstream portions of the yarn passageway is provided non-eccentrically or eccentrically with respect to the downstream portion, and the downstream portion has a fluid conduit opening eccentrically there into and inclined toward the outlet end of the downstream portion. Air preferably containing water at room temperature in the form of mist is used as the fluid jetted through said nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.