Process for the dyeing of textile fibers in an organic-system medium
US3988111A · kind A · utility
3Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Mar 17, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/924
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Process for dyeing of cellulosic textile fibers which comprises treating the cellulosic fibers with the dye in a bath consisting at least in major part of an organic solvent and in the presence of a quaternary ammonium compound of the formula ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are each C.sub.1 to C.sub.3 alkyl and X.sup.- is an anion selected from the group which consists of the halogenides, sulphate, nitrate or the like. The quaternary ammonium salt can be added to the dyeing bath or can be used to treat the fibers in a dye-free bath prior to the dyeing step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.