Nanomaterials manufacturer Promethean Particles is now part of a consortium that is developing new safe and sustainable water repellent fabrics. The company is developing functionalised silica nanoparticles that can be incorporated into a water-based ink for digitally printing on to textiles. These nanoparticles help impart hydrophobic properties. The four other partners involved in the Innovate UK-funded project, Repetex, are North West Textiles Network, Manchester Manufacturing Group, Mexar, an independent inkjet ink manufacturer specialising in water-based inkjet technologies, and The Welding Institute (TWI).Today, the highest level of water and oil repellency is achieved by using highly fluorinated chemical substances. However, increased concern and heightened regulation of perfluorocarbons and polyfluoroalkyl substances (PFCs and PFASs) is leading the textile industry to seek alternative chemistries that are more sustainable.Technical manager at Promethean Particles, stated: "Durable water repellent technologies have been traditionally incorporated into technical textiles for Personal Protective Equipment (PPE) applications, utilised by first responders, military personnel and outdoor industrial workers".
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