Process for the continuous dyeing of yarns with reactive dyes and apparatus for carrying out this process
US5983678A · kind A · utility
3Cited by
14References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 4, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/934
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the continuous dyeing of cellulose fiber yarns with reactive dyes and to an apparatus for carrying out this process. The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fiber-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, and fixing the dye. The invention can be applied especially in the technical field of dyeing cellulose fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.