Pakistan premium denim manufacturer Artistic Fabric and Garment Industries has developed what it says is a breakthrough technology that results in zero wastewater from the dyeing and finishing of fabric.

The Double Zero technology combines both of the company's proprietary True Zero Dyeing and True Zero Finishing for zero wastewater processes that it says do not sacrifice looks or quality.

"This breakthrough technology allows us to save the tremendous amount of water traditionally used in indigo dyeing and mercerise finishing," the firm says.

"Producing denim requires a great quantity of water. Besides growing cotton, most of the water used is discharged as waste-water after industrial processes like indigo dyeing and fabric finishing. While the industry's focus thus far has been to try to get this waste water to be as clean and clear as possible, Artistic Fabric & Garment Industries (AFGI) believes it is time for true change."

By using only the minimum required to allow dyes to penetrate the fabric, all of AFGI's dyeing and fabric finishing water is evaporated at the end of the process or recovered, resulting in zero water being discharged, no effluents and no COD (Chemical Oxygen Demand).

The Karachi-based company has been working to tackle the challenge of harmful water and chemical discharge, while also reducing its overall water consumption.

The company has invested in several waste water treatment and recycling plants designed for reuse of waste water in the manufacturing process and utility departments and also to achieve the British Standard Guidelines and European Standard parameters for water discharge into the sea.

The long term goal is to recycle 65% of the daily water consumption through reverse osmosis plants.