After signing a joint development agreement in January 2024, HKRITA and Epson began work on a process of developing regenerated cellulose fibre using a new production process that transforms discarded cotton fabric into regenerated fibre.
This new process was made possible by integrating Epson’s proprietary Dry Fibre Technology for defibrating textiles with HKRITA’s fibre-dissolving technology. The process involves defibrating discarded cotton fabric into a powder-like state, dissolving the cotton in a solvent, and extruding it through a nozzle into a coagulation bath, where it solidifies and is spun into fibre.
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The regenerated cellulose fibre produced through this process is expected to have both a smooth, silky sheen and the strength of cotton. This fibre is expected to be used in high-end materials such as scarves, neckties, and suit linings. Moreover, since the short fibres that occur during the regenerated fibre production process can also be used rather than discarded, as was usually the case, this regeneration process can help to increase the total clothing recycling rate.
“As an applied research centre, HKRITA is dedicated to solving real-world problems and enhancing current practices and products,” said HKRITA CEO Jake Koh. “We are thrilled to collaborate with Epson to recycle fibres and repurpose them into high-quality yarns. This cross-industrial collaboration is not only reimagining materials but also redefining the future of sustainable production.”
Epson executive officer Satoshi Hosono, who serves as the deputy general administrative manager of the Global Environmental Strategy Promotion Office and as the deputy general administrative manager of the Technology Development Division, said: “We are extremely pleased with the results that this joint development project has yielded. The selective application of this new wet process and our previously developed dry process should enable fibre to be regenerated from all waste cotton fabrics while reducing environmental impact.”
HKRITA and Epson will continue to combine their advanced technologies to accelerate the adoption of regenerated fibres, contributing to global efforts to solve the challenge of clothing recycling.
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