Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
US4489540A · kind A · utility
13Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1983 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Jan 17, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H13/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process and device for making a spun yarn of fibres comprising an internal core which consists in subjecting the yarn to form the core to a momentary false twist by means of a spindle and projecting elementary fibres onto this yarn. Such elementary fibres are projected by means of a mobile guide surface on which the fibres are delivered tangentially, the core likewise being displaced tangentially with respect to the guide surface in a direction concurrent with the direction of delivery of the fibres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.