Production of spin-finish-free drawn fibers
US4933130A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Aug 29, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Process for producing spin-finish-free man-made fibers by melt spinning high polymers having a glass transition temperature of above 100.degree. C. and subsequently drawing the filaments by means of preheater godets to a preset draw ratio, wherein the filaments are not spin-finished prior to drawing but are impinged with a liquid which can evaporate residuelessly during drawing and the temperature of the preheater godet is set not less than 40.degree. C. higher than in the conventional process with spin finish application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.