India-based mill Arvind Limited, in collaboration with H&M Group and Indian start-up Deven Supercriticals, has inaugurated India’s first supercritical CO2 dyeing machine at its facility in Ahmedabad.

This technology, patented under the Suprauno brand, reduces the use of water in the fabric dyeing process by using supercritical carbon dioxide. At a commercial scale, it delivers up to 76% water savings, ~67% energy savings, and ~90% reduction in chemical usage within the coloration stage compared with conventional dyeing methods, said the partners.

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