Polylactic acid fiber (PLA), a fiber in the polyester family, whose raw materials are derived from plants such as corn and cassava. The production process is non-polluting and biodegradable. It is an environmentally friendly green material that can replace petroleum-based fibers. As early as the 1990s, China and the United States began to develop and produce polylactic acid fiber. However, due to factors such as high production costs, there has been no major development in the later period.
However, a recent “Fengyuan Polylactic Acid R&D Application Seminar†held in Anhui Province has produced an exciting news. The Anhui Fengyuan Group is based on the world's most advanced lactic acid fermentation technology and polylactic acid synthesis in the past 20 years. The technology has greatly reduced the manufacturing cost of polylactic acid chips, and the price of polylactic acid fiber made from it is expected to be lower than that of cotton. This means that the application of this green material in the textile industry will usher in a great opportunity and will also promote textiles. The industry is better at achieving sustainable development.
In order to explore the further development and application of polylactic acid in the textile field, on the afternoon of April 13, the “Foyuan polylactic acid research and development application sponsored by the China Textile Industry Enterprise Management Association (hereinafter referred to as “China Textile Enterprise Associationâ€) and undertaken by Anhui Fengyuan Group The seminar was held in Anhui. The meeting was highly valued by the municipal government of Bengbu City, Anhui Province.
Academician of the Chinese Academy of Engineering, Professor of Donghua University Yu Jianyong, Executive Vice President of China Textile Industry Enterprise Management Association Yang Jun, Special Vice President Zhan Lingzhi, Vice Mayor of Anhui Province, Hu Qiwang, and Secretary of the Guzhen County Party Committee of Bengbu City, Wu Yongbin, etc. Leaders of industry associations, industry colleges and universities, and relevant departments of Handan City Government, as well as from Hengtian Changjiang Biomaterials Co., Ltd., Anhui Huamao Textile Co., Ltd., Shanghai Sangun (Group) Co., Ltd., Shanghai Jialinjie Textile Co., Ltd. , Zhejiang Jinsanfa Nonwovens Co., Ltd., Donglun Technology Industrial Co., Ltd., Changsheng Textile Technology Development (Shanghai) Co., Ltd., Shanghai Tongjieliang Biomaterials Co., Ltd., Xinhua International Group 3509 Textile Co., Ltd., etc. More than 100 representatives of upstream and downstream enterprises in the industrial chain such as yarn, printing and dyeing, knitting, industrial use and clothing attended the meeting. The meeting was hosted by Zhan Lingzhi.
Zhan Lingzhi
Zhan Lingzhi introduced that after more than 20 years of research and exploration on polylactic acid, Fengyuan Group has achieved gratifying results and opened up a new path for the green development of the textile industry. How polylactic acid fiber is used for textiles and replaces polyester to exert its degradable effect to protect the earth is a new topic facing the industry. The convening of this meeting is to hope that through the efforts of all parties, we will jointly promote the development of this industry.
Reduce costs
The development of polylactic acid industry is like a duck
Li Rongjie
“The polylactic acid fiber produced by the polylactic acid section developed by Fengyuan Group must be lower than the price of cotton, and it will certainly provide high quality and sufficient quantity of polylactic acid chips for the downstream textile industry.†At the meeting, the director of Anhui Fengyuan Group Li Rongjie said confidently. What makes Li Rongjie so confident? This is due to the Fengyuan Group's technical research and technical accumulation of polylactic acid for more than 20 years.
Fengyuan Group is a science and technology industrial company with large-scale bio-fermentation engineering technology in China. It is a national innovative high-tech enterprise, with two national technology innovation centers: Fermentation Technology National Engineering Research Center and Fengyuan Medicine National Enterprise Technology Center. At present, Fengyuan Group owns one of the most advanced lactic acid fermentation technologies in the world and the most competitive polylactic acid synthesis technology. This technology can greatly reduce the manufacturing cost of polylactic acid chips, which is the development of polylactic acid industry chain. The key starting point.
In order to strengthen the research and development, processing and application of polylactic acid downstream products, Fengyuan Group established Anhui Fengyuan Biomaterials Co., Ltd. in 2016, mainly to verify the raw material index of polylactic acid chips, and develop downstream products such as polylactic acid fiber and plastic. In June 2017, the company has built an annual output of 3,000 tons of polylactic acid fiber, yarn products and 1,000 tons of blow molding and injection molding demonstration lines. The 32~80S series of yarns and fabrics for knitted fabrics have been verified and batched. Production, household polylactic acid injection molded parts have begun to bear fruit.
Li Rongjie introduced that based on Fengyuan Group's plan for the entire industrial chain of polylactic acid, the production of polylactic acid chips should reach 1 million tons/year in 5 years, 10 million tons/year in 2025, and 30 million tons/year in 2030. .
"At present, domestic companies mainly import polylactic acid chips from the United States, the Netherlands and other countries, and their prices are as high as 20,000 yuan / ton, plus processing costs, the price of fiber products is much more expensive than cotton. In the future, foreign polylactic acid slices They will not be lower than this price, because their production technology is the same, which determines that the cost will not be reduced." Li Rongjie introduced.
Li Rongjie believes that the development of polylactic acid industry in the United States is earlier, but the development of polylactic acid fiber has been tepid. The reason is that the production cost of polylactic acid in the United States is high, and the second is that the United States lacks corresponding downstream links such as spinning, weaving, printing and dyeing. It is China's advantage, so the future of China's polylactic acid fiber industry will be extremely broad.
Government, industry, research and research
Working together to promote the development of polylactic acid industry
The development of the polylactic acid industry has received great attention from the government, industry associations, industry colleges, and upstream and downstream enterprises in politics, production, learning, research and use. At the meeting, representatives from all parties talked about polylactic acid fiber. Suggestions for future development.
Hu Qiwang
Hu Qiwang first introduced the basic situation of Handan City in Anhui Province to the participants, and pointed out that Bengbu City has a solid scientific and technological foundation, a superior transportation location and a good development environment. Fengyuan Group is now concentrating on the research and development of polylactic acid production and application. The government will fully support it and hope to deeply interact with famous universities and enterprises in China to create a communication platform combining government, industry, research and research to jointly promote this environmental protection and potential. Huge bio-based new materials develop healthily.
Yang Jun
While affirming the achievements of Fengyuan Group in the research and development of polylactic acid, Yang Jun pointed out that if the price of polylactic acid fiber can be lower than that of cotton, it will have broad development prospects in the textile industry. In order to explore the application of this green material in the textile field, the China Textile Enterprise Association invited representatives from the government, institutions, associations and enterprises to contribute to the development of the polylactic acid industry and jointly promote the development of the industry. In addition, China Textile Association is the earliest established textile industry association in the industry. The service target covers all enterprises in the industrial chain. Through this advantage, the association will organize the establishment of polylactic acid alliance to promote the development of polylactic acid industry.
Yan Liming
In recent years, the textile and garment industry in Anhui Province has developed steadily and has been ranked in the top ten in the country. In the textile sub-sector of the province, the industrial textile industry accounts for about 8%, second only to clothing and cotton spinning. To develop the fastest industry.
Fengyuan Group is a company with great influence in Anhui Province. Its advanced polylactic acid production technology is in line with the current “scientific, fashionable and green†textile positioning, and will provide more competitive materials for the textile industry. There is a significant boost. Yan Liming hopes that Fengyuan Group will increase product development and actively understand the application of polylactic acid in downstream products to meet the needs of end products. The Anhui Textile Industry Association will actively support this project and do a good job in propaganda, coordination and service.
Cheng Longzhen
Cheng Longzhen, a professor at the Textile College of Donghua University, introduced the performance and competitive advantages of polylactic acid fiber, pointed out the current development bottlenecks in the industry, and proposed solutions. For example, for the problem of low moisture regain, it is recommended to develop a special oil for polylactic acid spinning, and a method of blending with high moisture regain rate fiber to reduce the amount of static charge. For the problem of poor comfort, it is recommended to use ultra-soft fine denier? Cellulose fibers and the like are blended.
Jiang Gaoming
Jiang Gaoming, a professor at Jiangnan University, pointed out that polylactic acid fiber has broad applications in knitted underwear, sports and leisure, bedding, industrial textiles, sanitary textiles, medical textiles, automotive interiors, and agricultural textiles. Insufficient wear, lack of heat stability, sensitivity to dyeing temperature, etc.
Wang Lejun
Wang Lejun, chairman of Hengtian Changjiang Biomaterials Co., Ltd. believes that China has the advantages and foundations for developing polylactic acid fiber industry from the perspective of strategic demand, abundant resources, potential market, manufacturing system and technological advantages, but it needs to build a low industrial chain as soon as possible. Cost technology and industrial system, large-scale production of the entire industry chain? Technology and equipment system, at the same time accelerate the development of differentiated, functional, high value polylactic acid fiber, optimize dyeing, heat resistance, softness, hydrolysis resistance, high moisture absorption, flame retardant anti-melting, toughening and other technical levels.
In addition, Yang Shengming, deputy general manager of Anhui Huamao Textile Co., Ltd., combined with the application of polylactic acid fiber by enterprises, introduced the problems of poor heat resistance of polylactic acid fiber; Changsheng Textile Technology Development (Shanghai) Co., Ltd. equipment sales Director Yan Wei introduced the technical principle of using the new cold transfer printing technology to make polylactic acid fiber fabrics rich and environmentally friendly. Yang Qidong, deputy general manager of Shanghai Jialinjie Textile Co., Ltd. introduced the application of polylactic acid fiber to develop sanitary textiles. At the same time, he hopes that the development of polylactic acid industry should intensify innovation to achieve true sustainable development; Yan Daopei, general manager of Zhejiang Jinsanfa Nonwovens Business Unit, said that Jin Sanfa has related products of polylactic acid, and hopes that it will be able to Seeing higher-performance polylactic acid materials; Huang Xiang, director of the Sangun Group Research Institute (Shanghai Knitting Science and Technology Research Institute) suggested that polylactic acid fiber development should be combined with spinning companies to solve the problem by blending with other fibers. Disadvantages of lactic acid fiber. Xu Keqiang, general manager and CEO of Shanghai Tongjieliang Biomaterials Co., Ltd., said that after years of development, the industry has a number of polylactic acid fiber products, and has been recognized by the market, but if you want to replace chemical fiber and other products, only rely on the current products. Not enough, we need to continue to increase research and development in the future. At the same time, we hope that the upstream and downstream of the industrial chain can jointly form alliances and do a good job in the polylactic acid industry. Professor Wang Xueli of Donghua University Research Institute suggested that the development of polylactic acid fiber should set the benchmark product and open up the corresponding market. At present, many polylactic acid fiber production equipments are only transformed from polyester staple fiber equipment, which is still insufficient and should be developed in the future. Exclusive equipment.
Green
Polylactic acid industry has broad prospects
Yu Jianyong
Yu Jianyong pointed out that although polylactic acid fiber is not a new fiber, it has ushered in a new historical starting point. Under the current situation of accelerating the green transformation and upgrading of manufacturing industry and promoting the efficient recycling of resources, the application significance of this green environmental protection material is discussed. Far-reaching. In this regard, he made four suggestions.
First, the most important trend of current fiber materials is biomass, which includes the meaning of renewable, degradable, low-carbon three layers, and polylactic acid fiber fully meets these three major points. Among the textile raw materials, the highest proportion is chemical fiber, and the highest proportion of chemical fiber is polyester. Therefore, in order to realize the bio-chemicalization of chemical fiber in the future, polylactic acid fiber should gradually replace polyester, and lead the chemical fiber material to achieve biomass. .
The second is to solve the application problem of polylactic acid fiber. At present, the biggest problem with polylactic acid fiber is poor heat resistance, and this problem is bound to impose greater requirements on polymerization, and will also affect the application range of the final product. At the same time, polylactic acid fiber also has problems such as insufficient long-term stability and lack of product performance and processing temperature sensitivity. It is necessary to further modify the existing materials to meet the current market demand.
The third is to solve problems while developing, to push back product development according to market demand, and constantly explore and develop more new products.
The fourth is to strengthen the production, study and research, strengthen the upstream and downstream alliance, give full play to the market-oriented role, and use the advantages of polylactic acid fiber to guide the market.
On the eve of the meeting, the delegates visited Fengyuan Gelatin, Fengyuan Biochemical, Taige Bio, Fengyuan Biomaterials and other enterprises under the Fengyuan Group.
Polylactic acid sample
Editor in charge: Xu Yuehua
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