Process for the dyeing or printing of polyacrylonitrile material
US4123222A · kind A · utility
7Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/702
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process is described for the dyeing or printing of polyacrylonitrile materials, which process comprises the use of dyes of the formula ##STR1## wherein R.sub.1 represents a low-molecular, straight-chain alkyl group, R.sub.2 and R.sub.3 independently of one another each represent a low-molecular alkyl group, R.sub.4 represents an aralkyl group, n represents 2 or 3, and X.sup..crclbar. represents an anion. The dyeings obtained are distinguished by good build-up properties of the dyes, and the dyes are particularly suitable for trichromatic dyeings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.