Benefits of combined bleach clean-up and biopolishing process
A factory in Gazipur district in Bangladesh wanted help to reduce chemicals consumption. STWI recommended the technique of combined bleach clean-up and biopolishing process. Biopolishing removes unwanted or protruding fibers and dead cotton from knit fabric and as a result the fabric stays smooth and clean for longer time, and the color remains fresh. This procedure also extends the lifetime of cotton garments and reduces the environmental impact significantly.
The factory aligned with a chemical supplier to receive training sessions for their dye house staffs and enrich their knowledge on this technique. As a result, the factory reduced water usage by 70%, electricity usage by 50%, H2O2 Killer usage by 100% and CO2 Emission by 85%. Reduction of the use of these resources reduced cost by an average of 50%, including labor cost (reduced by 42%).
We also created a Water Governance Report for Bangladesh to help map the water risks for the textile industry there.