Shaoxing enterprises develop new dyes to reduce the amount of pollutants by half

After more than 10 years of technical research, the new high-strength dye developed by Longsheng Group can reduce the discharge volume of downstream printing and dyeing enterprises by 40%~60%. “Since this year, eco-dye has accelerated industrialization. In the first quarter, this order has increased by about 30% year-on-year.” On March 13, He Xubin, president of Longsheng Research Institute, said that a number of world sports brands including Adidas and Nike have already Become a big customer of ecological dyes.

Longsheng ecological dye is the epitome of Shaoxing dye industry to the high end. The dye itself meets international ecological standards, and the amount of “three wastes” generated by downstream companies is minimized when the dye is applied. Last year, under the environmental protection and high pressure, the sales and profits of the dye industry in the city increased by more than 20% year-on-year. “Starting from the key indicators of ecology, relying on the upstream and downstream collaborative research and development model to accelerate the overall upgrading of the industry.” The person in charge of the Provincial Dyestuff Industry Association said that the Shangyu dye industry, led by Longsheng and Bauxite, has explored a new path of green development.

“The acquisition of DyStar a few years ago is not only the international market of the other side, but also more than 1,900 patents.” He Xubin said that in recent years, Longsheng has focused on digesting patents and continuously converting it into new ones. New products of the era standard. High-intensity ecological dyes are one of them. It is reported that in the production process of such dyes, there are hundreds of indicators for only trace impurity control testing projects. At present, the enterprise standards formulated by Longsheng are higher than the national standards, and only the testing equipment investment exceeds 50 million yuan.

A group of dye companies in Shangyu locked in the market segment, aimed at the upgrading direction of the textile industry, continuously improved the ecological indicators, upgraded from traditional dyes, environmentally friendly dyes to ecological dyes, and accelerated the transformation from quantity to quality . Starting from traditional reactive dyes , in the past two years, Zhejiang Yide Chemical Co., Ltd. has increased the development of high-end reactive dyes with water-saving, functional and high added value. Since last year, new products developed for outdoor sports and swimwear fabrics have become new profit growth points.

Not only Yide Chemical, but neighbor Zhejiang Changzheng Chemical Co., Ltd. relies on the research and development platform of the Baux Institute and cooperates with downstream printing and dyeing companies to develop new products such as liquid indigo and liquid sulfur black. Jin Yonghui, deputy general manager of the company, told reporters that upgrading from solid dyes to liquid dyes is not only expected to reduce energy consumption by two or three percentage points, but also to facilitate downstream enterprises to achieve clean production.

Focusing on the upstream and downstream green production needs, improving the technological level and developing new products, it has become the main direction of Shaoxing printing and dyeing enterprises to accelerate the transformation and upgrading . Since last year, the technological transformation and R&D investment of dye companies based on the Shangyu Economic Development Zone in Hangzhou Bay has increased by more than 30% year-on-year. The relevant person in charge of the Municipal Economic and Information Committee said that around the green development goal, building an ecological production chain and industrial chain, the Shangyu dye industry has formed a good momentum of upstream and downstream cooperation and leading enterprises to lead the overall upgrade of small and medium-sized enterprises.