Fabric has been dyed by the same wasteful method for over 100 years. This involves chemical agents being added to a dye bath and thrown away afterwards. A new process developed by EUREKA project E! 2625 EUROENVIRON ECDVAT (ElectroChemical Dyeing with Vat dyes) replaces environmentally damaging chemical reducing agents with electrons.
According to Prof. Dr. Thomas Bechtold of the University of Innsbruck’s Textiles Department, the new process can be more easily controlled. Using the conventional method, the amounts of chemicals and the bath temperature have to be calculated very carefully to get the dye level right. “With the new method, dyers can monitor the situation in the dye bath and can increase the electrochemical addition of chemicals to “steer” the process. Using electrons instead of chemicals means that the dye bath can be monitored and adjusted in real time,” explains Bechtold. “This is a big advantage and allows us to maintain the high quality of the dyed fabric,” he says.
The new process also has environmental benefits. Any chemicals released with ECDVAT are easily biodegradable and the partners are working towards greater water savings, expected to be as high as 85% of the volume used today in the dyeing process.
Nicola Vatthauer | alfa
Intelligent wheelchairs, predictive prostheses
20.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Jelly with memory – predicting the leveling of com-mercial paints
15.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.
We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
19.01.2018 | Materials Sciences
19.01.2018 | Health and Medicine
19.01.2018 | Physics and Astronomy