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What is the production process of viscose filaments and its impact on the environment?

As an important artificial fiber, viscose filament is widely used in textiles, clothing and home furnishings due to its soft, smooth and breathable properties. However, its production process is complex and has a certain impact on the environment, which makes the production of viscose filaments attract much attention in terms of environmental protection and sustainable development.

The production process of viscose filaments mainly includes steps such as raw material treatment, spinning liquid preparation, spinning molding and post-treatment. First, natural cellulose (usually derived from wood or cotton wool) is used as raw material, alkaline treatment is used to generate alkaline cellulose, and then react with carbon disulfide to form cellulose yelute. Subsequently, the cellulose flavourate is dissolved in a dilute alkali solution to form a spinning liquid, extruded through a spinneret and formed in a solidification bath, and finally made into a viscose filament through post-treading processes such as stretching, washing, and drying. Although this process is mature in technology, it involves the use of a large number of chemical reagents, especially substances such as carbon disulfide and sodium hydroxide, which may pose potential risks to the environment and human health.

From the perspective of environmental impact, there are some problems that cannot be ignored in the production process of viscose filaments. First of all, the wastewater and waste gas generated during the production process contain harmful chemicals, which may cause pollution to the water source and air if handled improperly. Secondly, carbon disulfide, as a volatile organic substance, not only poses a threat to workers' health, but may also aggravate air pollution. In addition, the production of viscose filaments requires a large amount of energy and water resources, which is in conflict with the current globally advocated concept of green manufacturing and sustainable development.

However, with the advancement of technology and the improvement of environmental awareness, many companies are reducing the impact of viscose filament production on the environment through innovative processes and environmental protection measures. For example, the closed-loop production process is used to recover and reuse chemical reagents to reduce wastewater emissions; the introduction of efficient filtration equipment can reduce the concentration of harmful substances in the waste gas; and the use of renewable energy can reduce the carbon footprint in the production process. These measures not only help improve environmental performance, but also enhance the market competitiveness of enterprises.

It is worth mentioning that some leading fiber manufacturers, such as Suzhou Hanyun New Materials Technology Co., Ltd., are actively exploring paths for sustainable development. Through technological innovation and equipment upgrades, they are not only able to produce high-quality viscose filaments, but also committed to reducing resource consumption and environmental pollution in the production process. This emphasis on environmental protection is not only in line with the development trend of the global textile industry, but also wins the trust of more customers for the company.

Although the production process of viscose filaments is complex and has a certain impact on the environment, through technological innovation and environmental protection measures, environmental problems in the production process are gradually being improved. In the future, with the further popularization of green manufacturing technology, viscose filaments are expected to find a better balance between environmental protection and performance, providing more possibilities for the sustainable development of the textile industry.