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- Title
Dyeing of m-Aramid Fibers in Ionic Liquids.
- Authors
Opwis, Klaus; Celik, Bilal; Benken, Rainer; Knittel, Dierk; Gutmann, Jochen Stefan
- Abstract
Aramids represent a class of high-performance fibers with outstanding properties and manifold technical applications, e.g., in flame-retardant protective clothing for firefighters and soldiers. However, the dyeing of aramid fibers is accompanied by several economic and ecological disadvantages, resulting in a high consumption of water, energy and chemicals. In this study, a new and innovative dyeing procedure for m-aramid fibers using ionic liquids (ILs) is presented. The most relevant parameters of IL-dyed fibers, such as tensile strength, elongation and fastness towards washing, rubbing and light, were determined systematically. In summary, all aramid textiles dyed in ILs show similar or even better results than the conventionally dyed samples. In conclusion, we have successfully paved the way for a new, eco-friendly and more sustainable dyeing process for aramids in the near future.
- Subjects
NATURAL dyes &; dyeing; IONIC liquids; DYES &; dyeing; ARAMID fibers; WATER consumption; FIBERS; PROTECTIVE clothing
- Publication
Polymers (20734360), 2020, Vol 12, Issue 8, p1824
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym12081824