Yarn false twist texturing apparatus
US6026636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J13/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn false twist texturing apparatus which includes a serially arranged heater, cooling device, and twisting unit. In order to collect and remove the oil vapors arising within the false twist zone, the cooling device is configured as an elongate hollow body, and the yarn is conveyed for cooling in contact with the inside wall of the hollow body. A vapor extraction system is provided which communicates with the interior of the body. In another embodiment, a tubular protective body is arranged between the heater and the cooling device, and the interior chamber of the tubular protective body encloses the yarn and is connected to an extraction device. The advancing yarn may be wetted with a cooling fluid at a location between the heater and the cooling device, to facilitate the volatilization of the oil constituents in the yarn as well as cool the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.