Method of dyeing textiles
US5861045A · kind A · utility
2Cited by
3References
11Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided a method of dyeing cellulosic and/or wool fibers and fabrics in a dyebath containing a dilute solution of tannic acid and/or tannic acid containing products at a proper pH. An exhaust salt is added to the bath to exhaust the tannic acid and then the tannic acid is fixed with an iron salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.