With the support of the National 863 Program, Dandong Hengxing Fine Chemical Co., Ltd. completed the development of water-free dyeing equipment. This equipment omits the complicated process of traditional printing, which requires direct printing on fabrics. The results will improve the digitalization and green technology of domestic printing and dyeing equipment, improve the technical level of textile printing and dyeing production in China, enhance the core competitiveness of printing and dyeing products, promote energy saving and environmental protection and emission reduction, and promote the transformation of industrial structure and growth mode in the textile industry. Has an important meaning.
In recent years, the contradiction of the development of ecological recycling economy in China's textile industry has become increasingly prominent. In particular, the high dependence on water resources and the environmental problems caused by high emissions have seriously restricted the sustainable development of the industry. According to incomplete statistics, the annual water consumption of China's textile industry exceeds 10 billion tons, ranking second in all industries in the world in terms of fresh water consumption. The discharge of wastewater accounts for the sixth place in the country, of which the annual consumption of printing and dyeing industry is 17 Billions of tons, sewage discharges up to 1.6 billion tons. Compared with foreign countries, the water consumption of textile printing and dyeing in China is 2-3 times that of foreign countries, and the energy consumption is 3-5 times that of foreign countries.
In response to this situation, the advanced manufacturing technology field of the National 863 Program has given Dandong Hengxing Fine Chemical Co., Ltd. the development of intelligent water-free dyeing special equipment with independent intellectual property rights of 1.8 meters and 2.8 meters, and hopes to pass the water-free dyeing equipment. Research and development to reduce water dependence and pollution in the printing and dyeing industry.
After two years of technical research, the research team completed the research and development of water-free dyeing equipment, and applied for 2 national invention patents and 1 international invention patent. Compared with traditional equipment, the equipment has the advantages of short design cycle, short production process, low cost and high speed. At the same time, it solves the shortcomings of traditional paint printing, and is especially suitable for small batch and multi-variety market requirements. More importantly, the subject solves the problem of a large amount of water and sewage discharge in the dye printing floating color cleaning and the traditional process cleaning net roller, and the product energy consumption index is also significantly reduced compared with the traditional printing technology. The experimental prototype has been applied in the printing and dyeing factory. After testing by the authoritative department, the fresh water consumption is reduced by more than 99.8% compared with the traditional technology, the sewage discharge is zero, the comprehensive energy saving is more than 60%, and the ecological benefit is particularly prominent.
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