Indian textile and viscose staple fibre manufacturer Grasim Industries – part of conglomerate Aditya Birla Group – has received US Department of Agriculture Biobased certification for its dope dyed viscose fibres.

The company's Birla Spunshades range use renewable, bio-based materials and displace the need for non-renewable petroleum-based chemicals, which means they have played a role in cutting greenhouse gas emissions. 

"Dope dyed fibres are the right solution to reduce environmental pollution and wastewater discharges in the textile industry," explains Ajay Sardana, chief sustainability officer of Grasim's pulp and fibre business. "Birla Spunshades are available in a wide range of colours across the entire palette with the most frequently used shades being readily available."

The dyeing process places the colour pigments into the fibre itself, avoiding conventional dyeing in the downstream value chain and saving 30 litres of water (and the accompanying colour pollution) for every metre of fabric processed, Grasim says. The result is a colour that fully saturates the fibre for better shade consistency.

Earlier this year, Grasim earned the USDA Biobased product label for its Birla cellulose fibres – Birla Viscose, Birla Modal and Birla Excel products.