Apparatus for producing multifilaments
US5609888A · kind A · utility
5Cited by
16References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | May 18, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for producing multifilaments having high fiber strength is disclosed. A spinneret melt spins a polyolefin at a first temperature into filaments. A cooling duct cools the filaments via convection at a second temperature. A chill roll, disposed downstream from the cooling duct, has a third temperature, and forcibly conductively cools the filaments. Finally, heated drawing rolls, disposed downstream from said chill roll, continuously draw the filaments at a high draw ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.