Method for wet processing of hemp fibers
US11739454B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2020 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Dec 31, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2201/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for wet processing of hemp fibers for commercial use is provided. The method includes steps of loading raw hemp fibers with water into a vessel and heating the contents of the vessel. The method also includes the addition of a sequence of certain chemical compounds, which include a scouring agent, a wetting agent, a caustic compound, an acidic compound, a lubricant, and a softening agent. The water may be heated to boiling during the process to aid in opening up the fibers during processing. Peroxide is not utilized in the process. The process produces commercially viable quantities of hemp fibers that are soft, clean, and easily spinnable while maintaining fiber burst strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.