With the deepening of the concept of green environmental protection and the development of textile technology, the application of lyocell fiber, a representative of regenerated cellulose fiber, in the textile field has attracted more and more attention, and China’s lyocell fiber has entered a practical scale The production quality has become more stable, and it has now entered a stage of rapid development of fiber and yarn product technology.
On September 6-7, the “White Shark Cup·China New Fiber Application Technology Forum and the First Lyocell Product Technology Annual Conference” was held in Xuzhou, Jiangsu. The theme of this conference is “Focus on key technologies to optimize product quality and efficiency”. The conference is co-sponsored by the National Cotton Textile Science and Technology Information Center, the journal “Cotton Textile Technology”, and the Lyocell Fiber Branch of the China Chemical Fiber Industry Association. It is the exclusive sponsor of Guangshan White Shark Card Clothing Co., Ltd., co-organized by Sateri Group, and General Technology High-tech. Materials Group is particularly supportive.
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Focus on industry trends
Since the “13th Five-Year Plan”, the textile industry has made great progress in energy conservation and emission reduction, pollution prevention and control, comprehensive utilization of resources, and green manufacturing systems. It has achieved remarkable results and made positive contributions to basically building a textile power.
Wang Yangjun, deputy director of the National Cotton Textile Science and Technology Information Center and deputy president of the journal “Cotton Textile Technology”, emphasized in his speech that the textile industry is a responsibility-oriented green industry and establishes and improves a green and low-carbon cycle. The industrial system is an important symbol and basic bottom line for achieving high-quality development of the entire industry. Textile enterprises must actively explore the construction of the entire textile industry system from green design, green raw materials, green production to green consumption. They must conduct in-depth research on the application technology of new fiber materials and jointly promote the green ecological and high-quality development of the cotton textile industry.
“Overcoming technical problems in fiber production and technological progress have made Lyocell fiber better in performance and more comfortable to wear.” Xie Ming, honorary president of Jiangsu Textile Industry Association, said in his speech from economics From this perspective and combined with his own experience, he affirmed the development process of lyocell fiber. The technical exchange meeting will also play an important role in the widespread use of lyocell fiber.
Tu Jing, general sales manager of Guangshan White Shark Card Clothing Co., Ltd., said that through sixty years of hard work, Guangshan White Shark Card Clothing Co., Ltd. has developed into a professional provider of carding engineering solutions. A professional international company integrating card clothing product R&D, manufacturing, sales and service. This year coincides with the 60th anniversary of the founding of the factory. Under the new situation, White Shark confidently puts forward the grand vision of “Century Card Clothing, Carding Expert” and the strategic plan to become the leader in the world’s card clothing industry.
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Coping with technical problems
Representatives from textile colleges, research institutes, and enterprises across the country participated in this conference to discuss Lyocell fiber Spinning technology, technical difficulties, product development technology, breaking the bottleneck of quality improvement, in-depth analysis of the innovative development model of lyocell fiber, and promoting the industry to build a technical support system for non-cotton fiber industrialization.
Liu Jian, Chairman of the Lyocell Branch of China Chemical Fiber Industry Association and Deputy General Manager of General Technology High-tech Materials Technology Co., Ltd., looked forward to the “14th Five-Year Plan” trend of China’s Lyocell industry. The focus was on the current rapid growth of lyocell production capacity, but there is a serious mismatch in supporting capabilities in the dyeing and finishing links of the industrial chain; it is difficult to replace cotton and viscose fiber with lyocell; the mainstream dyeing and finishing process “vat dyeing + sand washing” (to solve the problem of lyocell fibrillation), difficulty in standardization and popularization, etc. He said that in the future, we will increase the proportion of lyocell fiber industry; develop differentiated lyocell fiber varieties; optimize the production cost of lyocell fiber, expand applications and market promotion; and price lyocell fiber products reasonably.
Li Faxue, doctoral supervisor and department chair of Donghua University, shared key technologies for the industrial preparation of lyocell fiber and its applications. He introduced in detail the development, preparation process, performance and application of lyocell fiber, and made suggestions to integrate industry chain resources, deepen the fiber technology system, and improve fiber quality and differentiation levels.
Chen Yufeng, technical director of Guangshan White Shark Card Clothing Co., Ltd. and chief engineer of the Cotton Spinning Division, introduced the principle and practice of high-quality and high-yield carding solutions for lyocell fiber. He introduced the characteristics, existing problems and process status of lyocell fiber carding, the relevant rules in lyocell fiber carding, explained the design and selection principles of high-yield and high-quality card clothing for lyocell fiber, and proposed lyocell fiber carding The core of the process design: Combing instead of beating, combining carding and beating, flexible carding, strengthening transfer, ensuring quality and increasing output.
Ge Chunyang, general manager of Linz (Nanjing) Viscose Thread Co., Ltd., shared his practical experience in the development of lyocell spinning, and introduced in detail the different uses of compact siro spinning, vortex spinning, and rotor spinning. The practical experience of spinning Lyocell fiber yarn in the form of spinning provides a good reference for the development of Lyocell fiber products.
Zhang Shufeng, deputy general manager of Shandong Lianrun New Material Technology Co., Ltd., took Shandong Lianrun’s quality control points, quality management methods, quality improvement and effect evaluation of each process in differentiated yarn production as an example. , shared how to better control the quality of differentiated fiber production.
Chen Chao, vice president of Shandong Ruyi Technology Group and chief technology officer of Ruyi Cotton Spinning Group Technology Research Institute, shared the research and development and production practices of lyocell fiber yarn online. Chen Chao explained a number of Ruyi’s technological innovation achievements and strong technological innovation strength, and introduced Ruyi Group’s various technological development and innovations for Lyocell.New, at the same time, multiple practical production cases of Lyocell are explained in detail, allowing people to have a deeper understanding of the Lyocell spinning production process.
Ren Jiazhi, professor at Zhongyuan Institute of Technology and director of the Combing Technology Research Center, introduced Lyocell fiber combing technology and its application in high-quality yarns. He proposed the innovative direction of Lyocell combing through the problems existing in Lyocell fiber combing, and explained in detail the application of Lyocell fiber combing technology in high-quality yarns.
Ma Jingbao, chief engineer of the technical department of Weiqiao Textile Co., Ltd., has reviewed multiple lyocell fiber varieties and specifications, raw material selection, process flow, key production technologies, and various production links of lyocell spinning. The specific process design will be explained in detail.
Fu Zhongcheng, former development director of Hangzhou Hangmin Meishida Printing and Dyeing Co., Ltd., shared the fibrillation solution and spinning process control of lyocell fiber. He proposed two types of dyeing and finishing solutions for the fibrillation of Lyocell fabrics, and proposed solutions for the fibrillation of Lyocell from the spinning end, explaining the process of Lyocell blending or interweaving in specific production practices. The problems faced include a detailed introduction to the progressive relationship between lyocell fibrillation and fabric pilling.
Zhang Jianming, executive deputy general manager of Ningxia Hengfeng Textile Co., Ltd., shared the quality requirements for high-count Lyocell yarn online and explained various process design and development ideas for high-count Lyocell yarn.
Wang Jianfeng, Vice President, Production Director and Chief Engineer of Hebei Best Group, focused on sharing the characteristics of the Lyocell series fiber as well as production technical difficulties and treatment measures based on six fiber production practice cases of different specifications.
3
Discuss the development direction
The meeting also held a summit dialogue, specially inviting all parties in the industry chain such as raw materials, spinning, fabrics, printing and dyeing, etc. Representatives discussed innovations and development directions in lyocell fiber application technology.
Ren Jiazhi, professor of Zhongyuan Institute of Technology and director of the Combing Technology Research Center of Zhongyuan Institute of Technology, Chen Yufeng, technical director of Guangshan White Shark Card Clothing Co., Ltd. and chief engineer of the Cotton Spinning Division, Linz (Nanjing) Viscose Thread Co., Ltd. General manager Ge Chunyang, chief engineer of the technical department of Weiqiao Textile Co., Ltd. Ma Jingbao, and former development director of Hangzhou Hangmin Meishida Printing and Dyeing Co., Ltd. Fu Zhongcheng participated in the dialogue. Li Faxue, professor and doctoral supervisor of Donghua University, presided over.
Under the guidance of the national carbon peak and carbon neutrality goal, it will become a general trend for the textile industry to promote green and low-carbon circular development and promote the industry’s comprehensive green transformation. As a representative of green bio-based fibers, Lyocell fiber is widely used in the textile field due to its natural greenness, comfort and skin-friendly properties, and excellent performance. The development of lyocell fiber application technology requires collaborative innovation and joint promotion by enterprises upstream and downstream of the industry chain.
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