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Recycling of waste polyester to promote chemical fiber industry

2019-08-13 03:08:50 admin Read 550

In recent years, the textile industry, which is a traditional pillar industry of the national economy, has developed rapidly, and the annual average resource consumption has increased at a double-digit rate. At present, China's annual fiber consumption has reached 53 million tons, accounting for more than 70% of the world total. With the rapid development of the textile industry, problems such as insufficient supply of raw materials and shortage of resources have become increasingly prominent. In addition to mulberry silk, 30% of cotton and 70% of wool in textile raw materials need to be imported, and there is also a large gap in the supply of basic raw materials (such as pulp, caprolactam, acrylonitrile, xylene, etc.). The shortage of resources has prompted the industry to constantly seek new raw materials, and the recycling of waste polyester is the main renewable resource that can be utilized in the textile industry.


Polyester (PET), or polyethylene terephthalate, is one of the general-purpose plastics used in the preparation of fibers, films and bottles. According to statistics, since 2003, the global PET production capacity has expanded at an annual rate of about 9%, while China's PET production capacity has exceeded 20 million tons in 2008, becoming the world's largest PET production and consumption. With the rapid growth of PET polyester products, a large amount of PET waste is generated, which brings great pressure to the social ecological environment. Therefore, recycling waste polyester to produce recycled fiber can not only solve the shortage of raw materials of textile enterprises, but also alleviate the pollution of solid waste. This is a sustainable development path for society and enterprises to achieve a win-win situation. Li Jian, executive director of Jiangxi Xinxinyuan Recycling New Materials Co., Ltd. (hereinafter referred to as “Xinxin Textile”) said.


Recycled fiber plays a major role in PET recycling and is widely used in clothing, furniture, shopping bags, office supplies, daily necessities, civil engineering materials and other fields. Yanxin Textile is an environmentally friendly enterprise mainly producing recycled fiber. The company was established in 2004, mainly engaged in the production and sales of recycled chemical fiber, yarn, environmentally friendly non-woven fabrics and their products, forming recycled polyester staple fiber and recycled polyester. Yarn is a large-scale comprehensive textile enterprise with core products. What is more worth mentioning is that Xinxin Textile, as a pioneer in resource recycling, personally participated in the recycling of waste plastics at the front end, and at the same time committed to the research and development of waste PET conversion and chemical fiber, and truly realized the recycling of waste polyester. Economic industry model. This is due to the forward-looking wisdom management of the founder of the company, Li Jianfu. He said: Waste recycling is an effective way to alleviate the shortage of resources. Today, the renewable resources industry is developing and progressing, and the downstream gradually extends upstream and integrates. The recycling of waste plastics and the production of recycled fiber products is in line with the future development of the industry. At present, the products of Yuxin Textile Co., Ltd. enjoy a high status among consumers, and the company has established long-term and stable cooperative relations with many retailers and agents.


In addition to the management wisdom in the industry, Li Jian has extensive research in the field of waste polyester recycling. He led the company's technical personnel to make breakthroughs in the research of waste plastic processing equipment and technology, forming a number of national authorized patents, all of which are used in the important links of waste plastic recycling and recycling. Take recycled PET fabric as an example, the process is: polyester bottle recycling → polyester bottle inspection and separation → polyester bottle slicing → spinning, cooling collection → Recycled PET yarn Line → woven into fabric, Li Jian further introduced, our equipment and technology is to improve the crushing effect and efficiency of the polyester bottle, as well as the detection rate of impurities (mainly metal impurities) when the polyester bottle is separated, thus Guarantee high conversion rates from waste plastics to recycled fiber products.


Recycled PET Fabric products are a successful model in the field of recycling due to their low-carbon source and waste recycling. They are favored by developed countries in Europe and America. Moreover, the environmentally friendly yarn made of the fabric has passed the certification of the US SCS Environmental Protection Agency, the Taiwan Environmental Protection Agency, and the European Oeko-Tex Standard 100 eco-environment certification and the international GRS recycling standard, and the international recognition is higher.


On August 17, 2017, the five ministries (the Ministry of Environmental Protection, the Ministry of Commerce, the National Development and Reform Commission, the General Administration of Customs, and the General Administration of Quality Supervision, Inspection and Quarantine) on the current Catalogue of Prohibited Imports of Solid Waste, and the restrictions on the import of solid wastes that can be used as raw materials. The Catalogue and the Catalogue of Solid Wastes for Non-Restricted Imports Used as Raw Materials have been adjusted and revised: 4 kinds of 24 kinds of solid wastes, such as waste textile raw materials and waste plastics, from the list of solid wastes that can be used as raw materials for restricted imports. 》Adjusted to the Catalogue of Prohibited Imports of Solid Waste and officially implemented on December 31, 2017. The introduction of the comprehensive ban on foreign waste importation policy is generally conducive to the maintenance of the national ecological environment and the health of the people, but it has intensified the domestic demand for PET raw materials. In this regard, Li Jian said: At present, the construction of domestic waste recycling system still lags behind the development needs of the industry. Therefore, the variety and quantity of solid waste imports can be greatly reduced. In the long run, it can effectively promote the development of domestic solid waste recycling industry and facilitate circulation. Re-use the industry's industrial upgrading to improve the level of industrial green manufacturing, of course, this also requires continuous upgrading of waste polyester recycling technology.


From the in-depth study on the recycling and recycling of waste polyester to the pioneering application of the recycling economy model in the recycled chemical fiber industry, industry experts led by Li Jian are promoting the reduction, recycling and recycling of waste polyester waste, as well as the application industry. - Renewed chemical fiber / textile enterprise industrial structure upgrades continue to give new "green" solutions to contribute to mitigating environmental pollution, resource constraints, and reducing carbon emissions.