Yarn dyeing device
US12188176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | May 22, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J3/407
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a device for dyeing a moving yarn that comprises a liquid dye supply line, a first nozzle positioned above the yarn and configured to deposit dye on a first surface of the yarn, a second nozzle positioned above the yarn and configured to deposit dye on a second surface of the yarn corresponding to a surface opposite the first surface relative to the axis of the yarn, a synchronization mechanism for actuating the nozzles as a function of the movement of the yarn such that, between the first and the second nozzle, the yarn is able to pivot axially under the effect of the gravity of the dye deposited by the first nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.