Method for deregistering crimped multifilament tow
US5110517A · kind A · utility
6Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Jun 1, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.