Continuous device for impregnating, in a single step, strands or ribbons of natural fibers, in particular of linen
US10513054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2015 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | May 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2971
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous device (1) is provided for impregnating, in a single step, strands or ribbons of natural fibers (100) with a specific aqueous polymer dispersion to consolidate the fibers at the core of the fiber bundle and to improve their mechanical strength without any need for twisting. The device includes a stretching component (10) for elongating by the strand or the ribbon of natural fibers by stretching to give them a required yarn count, an impregnating component (20) for impregnating the fibers with the aqueous dispersion, a shaper for shaping/calibrating the wrung fibers, a dryer (40) for drying the shaped/calibrated fibers, and a conditioner (50) for conditioning the dried fibers to transform them into yarn or ribbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.