Process for the production of filament yarns with statistically distributed, broken individual filaments
US4054025A · kind A · utility
5Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1976 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Jul 20, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S57/908
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to the production of yarns with individual filaments broken in a purely random sequence. This object is achieved by initially interlacing the uniform filament yarns either during spinning and before winding or between the winding bobbin and the drawing zone and subsequently subjecting parts of the outer layers of the interlaced filament strand to brief heat treatment on a contact heater before stretching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.