Ring composite spinning method based on film filamentization
US10577727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/021
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A ring composite spinning method based on film filamentization is provided, which belongs to a textile technical field. According to the method, a film cutting drafting device is arranged above each drafting system on a ring spinning machine for cutting film material into ribbon-shaped multi-filaments to achieve the film filamentization, which changes a conventional formation of filament through linear spraying by spinneret orifices; then the multi-filaments formed pass through first and second filament drafting zones in sequence for drawing, so as to enhance and attenuate the multi-filaments. After in drawing, the multi-filaments are twisted with conventional staple fibers to form a composite yarn with high quality and functions, achieving one-step production of composite yarns of nano-micro fibers without online combination of nanofibers spinning and ring staple spinning, thereby breaking restriction of “low bulk and low-speed production of nano-spun fibers” and integrating film industry with textile industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.