Now, new waterless dyeing technologies are being developed and deployed that could help reduce the vast quantities of pollution generated by textile dyeing. In recent years, three companies have developed largely waterless dyeing technologies. Two are American enterprises AirDye and ColorZen and the third is a Dutch company, DyeCoo, whose process is being used by Adidas, one of its partners. Although the three processes are very different from each other, the results are much the same. The use of water is cut to near-zero, sharply diminishing pollution. The quantity of chemicals is drastically reduced, while faster dyeing cycles lead to a major drop in energy consumption.
Still, despite these benefits, major questions remain as to whether these new technologies will be able to turn the tide in the struggle to reduce pollution in the textile industry. Water has been used to dye fabric for centuries, and textile firms generally have been reluctant to embrace change. New waterless dyeing machines also are expensive to install and the technologies often can only be used with certain kinds of cloth, such as polyester.
“As for ColorZen, this is actually a new application of a technology that has been around for over 20 years, and it has still not been accepted by the textile industry,” said professor Long Lin of the University of Leeds, a leading center of textile technology and color science.China’s textile industry discharges about 2.5 trillion liters of wastewater into its rivers annually, according to a 2012 report from the non-profit Institute of Public & Environmental Affairs. Among these wastes are many hazardous chemicals tributyltin, pentabromodiphenyl ether, phthalates, perfluorooctane sulphonate and aniline that are banned or strictly regulated in other countries because they are toxic, persistent, bio-accumulative, hormone disruptive and can cause cancer. “The dyeing industry has made the cloth beautiful but [turned] the clean water black,” Sunyun Yao, a country deputy-secretary in Shaoxing County, China, said in 2010 at the start of operation Green Storm (Chinese), which fined or closed down companies illegally discharging untreated wastewater. More than 30 percent of China's dyeing houses are in Shaoxing.To know more visit our site http://allindiayellowpage.com/.