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In recent years, the regulation of printing and dyeing industry has never stopped in China. As one of the typical representative of the traditional industry, textile printing and dyeing industry is not only facing the high pressure of environmental protection, the rising of enterprise cost, but also the critical point of industrial innovation because of the backward equipment technology and the serious environmental pollution.
At present, how to save costs and achieve ecological environmental protection has become a pressing problem for many printing and dyeing enterprises.
At the beginning of this year, the first eco photoelectric intelligent dyeing and printing plant in China was formally put into operation. This factory is located on the shore of Taihu Lake, Wujiang District, Suzhou City, Jiangsu Province. As we all know, the Taihu Lake Basin is a key ecological protection zone in China. The state strictly prohibits any pollution enterprises within 10 km of the Taihu Lake. What kind of eco environmental technology can enable printing and dyeing enterprises to put into operation in scenic spots? May as well follow the Economic Daily reporter to see.
Traditional technology needs to be innovated
Traditional cylinder dyeing technology has led to textile dyeing and printing industry becoming a high polluting industry. New technology brings dawn to the industry.
Suzhou Wujiang district has a long history of textile printing and dyeing industry. It is a famous textile printing and dyeing industry gathering area in China. It is one of the 4 famous textile bases in China. Only in Shengze Town, there are more than 5000 textile enterprises. Once upon a time, the textile and dyeing industry also created serious environmental pollution while creating a lot of wealth.
Textile dyeing and printing industry has followed the traditional cylinder dyeing technology for more than 2000 years to complete the dyeing process by liquid water, commonly known as "wash big pool". It is estimated that a small printing and dyeing plant will produce at least 2000 tons of waste water and 10 tons of waste sludge in 1 days. In order to return the clear water of Taihu Lake, local government departments at all levels have frequently made heavy fists to control pollution. In recent years, a number of small and medium-sized printing and dyeing enterprises have been shut down.
China is a big producer of textiles in the world - textile printing and dyeing industry amounted to 380 billion yuan, accounting for more than 80% of the world's total revenue of about 4 trillion yuan in 2016. According to statistics, the total amount of dyeing cloth in China is more than 53 billion 300 million meters per year. 3 to 5 tons of waste water will be produced for each 100 meter cloth - 1 years of waste water is about 21 million tons, which is equivalent to the water storage of 150 Hangzhou West Lake. For a long time, the relevant government departments and enterprises have spent huge sums of money on the pollution problems of the printing and dyeing industry, but have not been fundamentally solved at the source.
"Being put into operation on the beautiful bank of Taihu is enough to prove the environmental reliability of eco photoelectric intelligent printing and dyeing system." In the office of the company, the head of the company tells the reporter in Taihu, not far away, that it is less than 5 kilometers from Taihu and is within the strict control of the state. The reason why the enterprises can go into production smoothly is that they do not have boilers, and truly achieve zero emissions of waste water and gas. The technology of eco photoelectric intelligent printing and dyeing system has made the printing and dyeing enterprises of Shengze town see new vitality.
New technology opens the "environmental revolution"
Green Eco photoelectric intelligent printing and dyeing system technology truly achieves high efficiency and zero emissions.
According to Qiu Jizhong, director of Suzhou deian environmental protection and technology company, and the inventor of the technology inventor of eco photoelectric intelligent printing and dyeing system, from 2010, deian has carried out scientific and technological problems for the characteristics of large pollution, high energy consumption and low efficiency in traditional cylinder dyeing process. After 8 years of independent innovation, it has finally developed DLN Green Eco photoelectric intelligent printing. Dyeing system technology has successfully changed the traditional process of dyeing and dyeing in 2800. Qiu Jizhong said: "this is the beginning of a" zero emission "environmental protection revolution in the textile printing and dyeing industry. I believe that printing and dyeing wastewater, which accounts for about 10% of the total industrial wastewater discharge, is expected to be fundamentally treated.
Qiu Jizhong introduced that the core of the eco photoelectric intelligent printing and dyeing system is the use of a new type of dye and photoelectric technology, combined with an instant color technology, which completely subverts the traditional dyeing process - without water printing and cleaning, the need of traditional waste water treatment, no need for boiler heat supply, and the whole process of boiler heat supply. The environmental protection production of waste water, waste gas and sulphide "zero discharge" has been realized. At present, the technology of eco photoelectric intelligent printing and dyeing system has obtained a number of national patent certificates.
The company has 3 eco intelligent printing and dyeing production lines. The reporter walked into the production workshop, and saw a large volume of white embryo cloth on the production line, after the roller, dye slot, after the uniform coloring, then sent into the rolling mill through special process flow extrusion, and then enter the temperature can realize the intelligent control, the maximum temperature can reach 245 degrees centigrade oven drying setting. After a few minutes, the red cloth with even bright colourful colors is continuously coming out from the other end of the oven. Compared with traditional printing and dyeing plants, the production site of Dillian is completely free of pollution such as sewage crossflow, vapor overflowing, odor pungent and so on. Moreover, each production line needs only 4 employees to control and manage, and the site is orderly and highly efficient.
Qiu Jizhong said that their printing and dyeing of millions of meters of finished products were tested by authority (SGS/BV/ITTC, etc.) many times, color fastness, color difference, chemical additives safety and other quality indicators all reached the national and EU standards. The company has become a star demonstration enterprise in the local ecological environment protection. The emergence of eco optoelectronic printing and dyeing system has brought new vitality to the transformation of local printing and dyeing industry.
Remarkable economic and ecological benefits
If the technology of eco photoelectric intelligent printing and dyeing system is fully popularized in the textile and dyeing industry, the benefits will be immeasurable.