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TN Govt finds solution to pollution by dyers
Oct '10
The sodium chloride salt that the dyers use to fuse colours with yarn fabric is the main pollution generating agent in Tirupur. In order to see that colours penetrate well in the yarn, dyers blend sodium chloride salt and sodium carbonate in water.

It is just a few years back that, for 30 long years prior to a Court direction, around 10 million litres of effluents full of sodium chloride were being discharged in the outlying areas, making the soil brackish and fruitless.

But, now the Tamil Nadu government has come up with a suggestion that the dyers can either use fertilizers like potassium chloride or potassium sulphate in place of sodium chloride, which is considered to enhance the productivity of the land. Such effluents containing potassium can also be sold to farm cultivators in solid or liquid form.

As per the analysis of the South India Textile Research Association (SITRA), potassium sulphate fixes colours to the fabric 10 percent more effectively than other chemicals.

Fibre2fashion News Desk - India

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