Process for dyeing materials which contain synthetic fibres using polyadducts of propylene oxide and polyhydric alcohols
US4132525A · kind A · utility
2Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1977 |
| Grant date | Jan 2, 1979 |
| Priority date | — |
| Expiry date | Apr 8, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/8214
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Process for dyeing materials which contain synthetic fibres with dyes that are sparingly soluble to insoluble in water, in the presence of dyeing auxiliaries which are polyadducts of propylene oxide and a polyhydric aliphatic alcohol of at least 2 carbon atoms, wherein said adducts are soluble in water and contain sulphonic acid groups. The process of present invention is especially suitable for dyeing linear polyester fibres wherein level and strong dyeings are obtained which are in addition characterized by good fastness to rubbing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.