Specialty chemicals group Archroma has worked with Portugal-based textile manufacturer Somelos, to develop a dyeing and finished process for cotton that generates no wastewater.

In conventional cotton dyeing and finishing, traditionally water-intensive processes include one to achieve colour intensity and another to achieve a washed-down contrast. “Relying on such resource-intensive processes is of particular concern in locations affected by drought and water scarcity, like Portugal,” they said.

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