How can textile dyes and chemicals pollute the environment?

In the textile and footwear industry, environmental pollution primarily arises from the discharge of wastewater generated during dyeing and finishing processes. Conventional dyeing typically utilizes aqueous solutions, known as dye liquor, which often contain various chemicals that must be managed to prevent ecological harm.1

When industrial plants improperly dispose of this wastewater, it can introduce toxic substances into the environment. These pollutants may include heavy metals or other hazardous compounds that are poisonous, carcinogenic, or bioaccumulative, meaning they can increase in concentration as they move up the food chain.2

To mitigate these issues, the industry has explored alternative methods, such as solvent dyeing, which uses substances like chlorinated hydrocarbons. This approach can eliminate certain effluent problems associated with traditional water-based dyeing, though it requires careful handling of the solvents themselves. Ultimately, the industry faces an ethical imperative to adopt sustainable practices that prioritize the protection of water resources and public health over the convenience of traditional, high-pollution manufacturing methods.12