TWD claims to have made new yarn with permanent self-cleaning effect

18/12/2012
German company TWD Fibres claims to have developed a super-hydrophobic filament yarn with a permanent built-in self-cleaning effect. The development took place in cooperation with the Institute for Textile Technology and Process Engineering and the and the Institute of Textile Chemistry and Chemical Fibres in Denkendorf , near Stuttgart.

TWD has described its new prototype, named Diolen Clean, as a good example of the lotus effect in textiles. A rough, water-repellent surface allows the structure to clean itself, as dirt and micro-organisms roll off with the rain.

“Up to now a self-cleaning effect could only be achieved temporarily by external refining processes, such as chemical finishing treatment,” TWD said on making the announcement. “Diolen Clean achieves a permanent self-cleaning effect by using a specialised spinning process that integrates the self-cleaning effect in the yarn.”

The company expects the product to become available as polyester filament yarn in raw white, package or dope dyed in various yarn counts once further development work has been completed.