HKRITA And Epson Develop Silk-Like Regenerated Fiber From Waste Cotton

The Hong Kong Research Institute of Textiles and Apparel (HKRITA) and Seiko Epson Corporation (Epson) have successfully developed a regenerated cellulose fiber with a silk-like sheen using waste cotton fabric, marking a significant step forward in textile recycling and sustainable innovation.

This new fiber, created through a novel production process, combines Epson’s proprietary Dry Fiber Technology for defibrating textiles with HKRITA’s fiber-dissolving expertise. The method involves breaking down discarded cotton fabric into a powder, dissolving it in a solvent, and extruding the material through a nozzle into a coagulation bath where it solidifies into new fiber.

The resulting regenerated fiber not only exhibits the smooth texture and shine of silk but also retains the strength of cotton, making it suitable for premium textile applications such as scarves, neckties, and suit linings.

Importantly, the process also allows for the reuse of short fibers that are typically discarded, thereby enhancing the overall clothing recycling rate and contributing to more efficient use of textile waste.

HKRITA CEO Jake Koh said the project reflects the institute’s mission to solve real-world problems and advance sustainable practices. “We are thrilled to collaborate with Epson to recycle fibers and repurpose them into high-quality yarns,” Koh noted.

Epson Executive Officer Satoshi Hosono also expressed satisfaction with the outcome, stating, “The selective application of this new wet process, along with our dry process, should enable fiber regeneration from all waste cotton fabrics while reducing environmental impact.”