Soorty, a Pakistan's large vertically integrated denim company, has launched a new dye washing process that is estimated to save 28,815 gallons of water per day while also producing better effluent.

Soorty is incorporating a novel water-saving method called Cascara into its sustainable production offering.

The company said that denim is the only fabric where the strands are colored and then washed off. The yarns wash out simply and efficiently with this streamlined procedure, requiring little work and resources in washing to get the desired, realistic appearances; hence, it saves water.

The new procedure solely employs "green" chemicals in accordance with European Union regulatory organization REACH, non-hazardous certification firm OEKO-TEX, multi-stakeholder organization ZDHC, and sustainable certification company blue sign. It removes the need for dying pre- and post-washers. It also does not require any pre-treatment with caustic soda and responds well to dry finishes.

Soorty estimates that this new procedure will save an average of 28,815 gallons of water each day.

The technology also permits the manufacture of materials that are meant to wash off quickly, eliminating the need for a hefty treatment for realistically worn-in appearances, according to the company. This minimizes not just the quantity of water required, but also the strain on effluent treatment while maintaining the true denim aesthetic. 

Soorty claims that their innovative Cascara Black technique for black denim saves 71 percent of the water used in conventional black denim and 87 percent of the dissolved solids (TDS) used in standard sulphur dyeing.

Furthermore, its revolutionary Cascara Indigo indigo denim method saves 90 percent of the water used in traditional indigo-colored denim and 87 percent of the dissolved solids (TDS) used in conventional indigo-dyed denim.