Method for ply-twisting yarns having low levels of finish
US5263308A · kind A · utility
17Cited by
20References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2503/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to an improved method for ply-twisting nylon yarns at twisting speeds greater than 6000 rpm. More particularly, the invention involves coating the nylon fibers with less than about 1% by weight of finish containing an alkyl polyoxyalkylene carboxylate ester lubricant composition. The resulting ply-twisted yarn is especially suitable for use as pile in carpets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.