Every ton of denim produced will pollute 200 tons of water. More directly, every 1 kg, that is, three pairs of jeans, needs 200 liters of water. About 2500 chemicals are used in the dyeing and finishing process of different denim products.
Time magazine reported that in 2007, an American brand of jeans made an evaluation of the resources needed for a pair of jeans, and the result was amazing-jeans were almost all made of water.
From cotton fields to cotton cloth to washing machines, a pair of jeans actually needs to consume 3480 liters of water in a lifetime. If an adult needs to consume two liters of water every day, then the water consumption of a pair of jeans is enough to meet the water consumption of an adult for nearly five years.
In order to meet the export quality inspection standards, manufacturers of jeans will wash them repeatedly, so that European and American customers will not be aware of the existence of chemicals. Before leaving the factory, a pair of jeans will undergo repeated dehydration and polishing for 20 times, and then they will be worn out, bleached and recolored.
In order to wash as clean as possible, a lot of surfactants will be added to the water. After that, the sewage is basically discharged directly into the ditch without any treatment, and finally flows into the Pearl River.
Extended data
Clothing industry is a heavily polluted industry that is extremely unfriendly to the environment. Black smoke from heavy industry factories and automobile exhaust are all visible and tangible pollution, while the clothing industry shows exquisite clothes and fashionable models in front of people, and the "beauty" side masks the "ugliness" behind it.
In 20 14 years, the number of garments produced in the world exceeded 10 trillion, double that in 2000.
70% of the clothes in our closet will not be worn anymore. 80% of the clothes sent for recycling are just buried in one place.
It takes two weeks for the earth to degrade a linen shirt, but it takes 200 years to degrade a polyester skirt. It takes a lot of water to produce clothes, and a cotton T-shirt needs 700 gallons (about 2650 liters) of water. 20% of the water pollution in the world is caused by the treatment of cloth by the clothing industry.
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