Dyes And Additives Are The Source Of Harmful Substances.

In the past year, PUMA,

Together with Nike, the discharge of wastewater from nearly 100 suppliers was tested and analyzed according to ZDHC standard. It was found that the standard water quality of COD and BOD was 78%, and 11 kinds of hazardous substances list were detected in different degrees in ZDHC, among which the detection rate of benzene and perfluorinated compounds was higher.

SGS also carried out wastewater discharge tests in several countries, and found that the situation in China is similar to that in other countries.

The goal of ZDHC is that the chemicals listed should not be intentionally added and should not be detected in waste water.

Where do these chemicals come from?

Zhao Mei, the representative of Limited by Share Ltd in Zhejiang, said that the test results were very compatible with the ingredients of dye auxiliaries. She said that the safety of textile auxiliaries was determined by the safety of dyes and auxiliaries, and the possibility of the introduction of benzene compounds by auxiliaries was very large.

Zhao Mei also believes that the technical research of substitutes is on the one hand, and more details of the management details of the upstream and downstream parties concerned.

For example, in order to get oil prevention function, enterprises should use it.

Although many brands advocate fluoride free, the balance between product performance and environmental protection is not easy.

She disclosed that the mandatory standards for additives are being worked out, but the road ahead is still long.

Textile enterprises have also made new discoveries in production.

Zhang Yugao, director of research and development at Yida group, said such a thing: enterprises found a kind of excessive substance in sewage. After screening through raw materials and production process, they found no source, only to find out that it was a handwashing solution which was staffed by the workshop.

Zhang Yugao reminded that chemicals in daily life can also cause harmful substances to exceed the standard.

Wang Ying, a brand processing enterprise far spinning group, said that the company has a special team for chemical control and waste water treatment. In the detection, heavy metal antimony was found to be over standard. It was originally produced by the raw materials of chemical fiber enterprises. Antimony as a catalyst for producing polyester yarns was still unavoidable. The company finally passed the experiment and added antimony content to the standard by adding iodized salt.

China's largest dye enterprise, Limited by Share Ltd chief engineer of Longsheng group, Zhejiang, acknowledged that 11 kinds of substances detected exist in dyes, some of which can be avoided through process control and green technology, but chlorine compounds in disperse dyes are hard to avoid.

As the first textile enterprise to launch the innovation alliance of green manufacturing industry in textile supply chain, Lu Tai textile has a personal understanding of chemical control.

Zhang Jianxiang, deputy general manager, said that after joining the alliance, the company's orders remained stable by strengthening chemical control and management, especially by international customers such as UNIQLO, PVH and so on.

The company has strict standards in chemicals selection, procurement, warehousing, logistics and use.

In the field of dyed weaving, the detection rate of harmful substances in waste water, waste gas and sludge of Ru Tai has reached the best level in the country.

Zhang Jianxiang said: "while producing high-quality products, enterprises must ensure that they can not pollute the environment and let their customers believe in order to achieve sustainable development."