Light-colored fabric that is not dyed, one-third lighter than ordinary clothing, and a blanket that can withstand 1100°C without burning, enhances the rigidity of the foundations of high-speed rails and high-speed roads, and has long-life, anti-static properties against corrosion. , UV-resistant, long-lasting bacteriostasis, moisture-absorbing, graphene-modified fibers ... The various products demonstrated at the launch conference of the Shenghong China Fiber Trend 2018/2019 were only used for the traditional impression of textiles.
The chemical fiber industry used to be a highly polluting and energy-consuming resource-based industry. Both the production and printing and dyeing industries will emit large amounts of wastewater. Faced with increasingly severe environmental and resource pressures, Professor Wang Huaping, deputy dean of the Donghua University Research Institute, said that the chemical fiber industry is taking a green, functional, resource-based development path.
China is the world’s largest producer of chemical fiber. In 2017, the output reached 47.14 million tons, accounting for 70% of the total global production. However, China’s chemical fiber accounted for 90% of the total output. At present, China's oil import dependency has reached more than 60%. How to reduce the dependence on fossil resources and promote the sustainable development of chemical fiber and textile industry has become a real problem facing the entire industry.
Another set of data is equally striking. China's waste chemical fiber textiles have nearly 400 million tons of social reserves, but the rate of resource recycling is less than 10%. Jiang Shicheng, academician of the Chinese Academy of Engineering, said that the annual comprehensive utilization rate of more than 20 million tons of waste textiles is estimated to be 60%, and 9.4 million tons of chemical fiber and 470 million tons of natural fibers can be produced annually, equivalent to saving 15.2 million tons of crude oil, and saving farmland. 13.6 million mu.
“At the end of 2017, China banned the import of 24 kinds of wastes including wastes from PET waste, scraps and waste PET bottles (bricks).” Wang Huaping said that raw materials for recycling face millions. The ton-level gap urgently requires the establishment of a high-quality resource system in China.
“The requirements for fiber regeneration and quality are high. With the original physical method, the regenerated products are significantly downgraded and the quality fluctuates greatly. It is difficult to overcome the quality bottleneck.” Wang Huaping said that through the original technological innovation, China has now taken the lead in realizing 200,000 tons of waste polyester textiles. Large-scale recycling, construction of a renewable China polyester industry development program. In the three years since the implementation of the project, a total reduction of 1.2 million tons of solid wastes and 3.76 million tons of carbon dioxide have been reduced, which is equivalent to saving 10.8 million acres of cotton fields.
With technological innovation, the market for fiber regeneration is also rapidly expanding. One of the initiators of the "Green Fiber Development Alliance for Regenerated Cellulosic Fiber Industry" and Yu Jianjiang, deputy general manager of Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd., for example, said viscose fiber is the largest variety in the regenerated cellulose fiber industry. At present, the industry is still in the process of rapid development, indicating that the market favors it, and that this fiber has been recognized by consumers.