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DyeCoo developed a technology that uses zero water to dye textiles, a process that is otherwise often associated with the generation of toxic wastewater. Instead of water, DyeCoo’s innovation makes use of carbon dioxide as a solvent in a closed-loop system. Additionally, no process chemicals are needed, reducing the amount of chemicals used in comparison to conventional dyeing methods. While the capital investment in the equipment is higher than for conventional dyeing, the company reports it can reduce operating costs due to the short batch cycles, the efficient dye use, and the avoidance of wastewater treatments. The technology can also reduce health and safety risks by minimising worker exposure to toxic chemicals.
One of DyeCoo’s machines can process 800 tons of polyester per year, effectively saving 32 million litres of water, avoiding the use of 160 tons of chemicals and completely eliminating the release of wastewater into the natural environment.
The Ellen MacArthur Foundation works to accelerate the transition to a circular economy. We develop and promote the idea of a circular economy, and work with business, academia, policymakers, and institutions to mobilise systems solutions at scale, globally.
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OSCR Registration No.: SC043120
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