Process and device for open-end friction spinning
US4760693A · kind A · utility
2Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Jul 16, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an open-end spinning process, fibers are twisted together into a yarn, alongside a suction slit, in a spinning nip formed by two friction rollers, in close proximity of each other and driven in the same direction, and subsequently drawn off therefrom. The length of the suction orifice of the suction slit is varied, before beginning the spinning process, in accordance with the thickness of the yarn to be produced. The spinning process is then started after such adjustments are made. Practice of the invention improves quality of the yarn, and saves power consumption and other resources by reducing required air consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.