Since the beginning of the 21st century, China's chemical fiber industry has experienced rapid growth. However, this expansion has come with increasing challenges related to resource depletion and environmental degradation, which have become major obstacles to long-term sustainable development. Starting from the 10th Five-Year Plan, the industry has made significant efforts in energy conservation and pollution reduction. First, the localization of large-scale production equipment for polyester, viscose staple fiber, and spandex has greatly reduced costs, energy use, and material consumption per unit product. Second, the industry has actively phased out outdated and inefficient production capacities. For instance, over 800,000 tons of low-efficiency polyester production capacity have been eliminated in recent years. Third, companies facing high environmental pressures have upgraded their processes and invested in technological innovation. Examples include replacing traditional solvents with DMAC in spandex and acrylic fiber production, adopting non-toxic spinning technology in the viscose industry, and using membrane technology for wastewater treatment to achieve zero emissions. Fourth, recycling of polyester bottles and flakes has proven highly effective, with annual production of recycled polyester staple fiber exceeding 3 million tons. Recycled polyester filaments and reclaimed bottle chips are also now being produced on a large scale. Lastly, leading enterprises have implemented refined management practices, improved product quality, and increased the recycling of bobbins, packaging materials, and waste silk. Despite these achievements, the industry still faces significant environmental challenges. While energy saving and emission control have met targets, there are still gaps compared to international standards. The overall energy consumption level is 10%–30% higher than that of advanced countries. Some wet-spinning facilities in the viscose, acrylic, and vinylon industries still use outdated technologies. In terms of "three wastes" management, most efforts remain at the end-of-pipe treatment stage, with limited focus on source control and process optimization. Additionally, the development of renewable raw materials lags significantly. Biomass engineering technology is underdeveloped, and progress in non-toxic spinning and biodegradable fiber technologies is slow. These issues highlight the need for continued investment in innovation and sustainable practices to ensure the industry’s long-term competitiveness and environmental responsibility.

100% Biodegradable Polyvinyl Alcohol PVA Binder

PVA resin is a kind of heavy polymer; it is non-toxic, insipid and harmless. PVA is water-soluble and the solvent
provide good viscosity and film building. It can withstand oils, lubricants, hydrocarbons and most other organic
solvents. PVA has better chemical stability and insulatibility, and provide ease in firm building; It possess the
typical chemical properties of polyols and can carry out process of esterification, etherealization, acetalization
etc.
Product Names
Hydrolysis Viscosity Volatiles (%) Ash (%) (mol %) (cps)
1788 86.0-90.0 20.0-26.0 ≤7.0 ≤ 0.7
2488 86.0-90.0 44.0-52.0 ≤7.0 ≤ 0.7
2688 86.0-90.0 48.0-58.0 ≤7.0 ≤ 0.7
0588 86.0-90.0 4.0-6.0 ≤7.0 ≤0.5

100% Biodegradable Polyvinyl Alcohol Pva Binder,Polyvinyl Acetate Biodegradable,Polyvinyl Alcohol Binder

Ningbo Neon Lion Technology Co., Ltd. , https://www.neonliontech.com