Home >

The Sub Forum Of China 2023 Chemical Fiber Science And Technology Conference Was Held At The Same Time

2023/6/20 13:44:00 0

　　 On June 16, the sub forum of China Chemical Fiber Science and Technology Conference (Hongze 2023) - Advanced Fiber Technology Forum, Chemical Fiber Green Low Carbon Technology Forum, and Functional Fiber Material Preparation Technology Forum were held at the same time, focusing on fiber innovation technology and providing new ideas for innovation and upgrading of chemical fiber industry and cross-border integrated development.

　　 Parallel theme forum (I):

　　 Advanced Fiber Technology Forum looks forward to the opportunities and challenges of the intelligent era

　　 On the morning of June 16, the China Chemical Fiber Science and Technology Conference (Hongze 2023) parallel theme forum Advanced Fiber Technology Forum was successfully held, focusing on the opportunities and challenges brought by the intelligent era to the textile chemical fiber industry, as well as the development and application of a variety of advanced fiber technologies.

　　 The forum was hosted by Zhang Zixin, director of the Science and Technology Department of China Chemical Fiber Industry Association.

　　 Hu Xinrong, Dean of the School of Computer and Artificial Intelligence of Wuhan Textile University, introduced the development and application of ChatGPT under the title of Understanding ChatGPT and Enabling the Development of Textile Chemical Fiber Industry, analyzed the advantages and disadvantages of ChatGPT, and discussed the opportunities and challenges facing the textile industry in the era of artificial intelligence. She said that ChatGPT, as a new engine to launch a new round of AIGC boom, opened the prelude to a new era of artificial intelligence, and is expected to become a new productivity tool for the whole industry to improve the efficiency and richness of content production. AI can help textile and chemical fiber industry predict products through big data analysis, help designers to design and optimize fiber products more quickly and accurately, realize automation and intelligence in the fiber production process, optimize production and supply chain management, and carry out precision marketing. In the future, AIGC will further empower the industry and improve production efficiency. We need to recognize the gap between domestic and foreign industries and catch up with them; The integration of government, industry, university, research and application will improve the added value of products and differentiate the competition in different links.

　　 Dan Dan, senior assistant of Zhengzhou COSCO Enterprise Group, analyzed the development history, engineering progress and engineering technology status of Lyocell fiber under the title of "Current Situation and Future Development of China Lyocell Engineering Technology", focusing on the future development and engineering road of China Lyocell engineering technology. She said that at present, Lyssell fiber engineering is faced with problems such as limited pulp selection range, many side reactions in NMMO solvent system, low efficiency of dissolving equipment and spinning, etc. As a professional Lyssell staple fiber engineering technology company, Zhengzhou Yuanyi can provide technical support in key preparation links such as pulp premixing and blending, stock solution preparation, stock solution transportation and filtration, fiber forming, refining, drying and cutting. The company's advanced bio based material technology research center can also provide systematic research including bio based raw materials, processes, engineering, applications, testing and evaluation, and can cooperate with the upstream and downstream of the industrial chain to jointly develop.

　　 Xu Changgang, deputy general manager of Chengdu Xinchen New Material Technology Co., Ltd., described the industrial orientation and fiber characteristics of PBO fiber under the title of PBO Fiber Application and Development, introduced the basic situation of PBO fiber industrialization development in China at present, and the progress and achievements in the application of PBO fiber in aerospace, national defense and military industry, life protection, industrial products and daily life. He mentioned that PBO fiber has the characteristics of ultra-low dielectric loss, high temperature resistance and flame retardancy, lightweight, high modulus, high strength, and excellent stability. It has gradually formed basic products and differentiated series of products, and is a high-end material applied in more than 20 industrial fields. At present, PBO fiber industry is in the stage of striding development, with broad application prospects and considerable market scale.

　　 Chen Ye, professor of the School of Materials Science and Engineering of Donghua University, made a report on the Preparation and Serviceability of High Conformal Polyester Fiber. He mentioned in the report that as an important variety of functional fibers, high conformal fibers have the characteristics of easy care, no ironing, affinity and comfort, meet the fast pace of modern life, and conform to the concept of low-carbon, energy conservation and emission reduction. However, there is a lack of research on the performance decline of this fiber in the application process. With the goal of improving the elastic recovery of conformal fiber and reducing the cost of elastic conformal fiber, the subject prepares high elastic conformal polyester fiber based on the parallel structure, which makes the fabric easier to care and can be widely used in pants, skirt materials, outdoor leisure, sports and other fields, such as yoga clothes, high stretch sports underwear, conformal shirts, bras, gloves, knee pads and other products.

　　 Hu Xianqi, vice chairman of Zhejiang Shijin Basalt Fiber Co., Ltd., pointed out in the report titled "Pure Natural Production Process is an Efficient Preparation Technology of Basalt Fiber" that continuous basalt fiber is a continuous fiber rapidly drawn from volcanic rock by melting at a high temperature of about 1550 ℃ Silicon carbide fiber is also listed as "key strategic material" by the state. At present, there are two kinds of production processes for continuous basalt fiber in China: one is the process route using natural basalt as raw material; The second is the process route of manual batching through multiple treatments. Through comparative analysis of two different production processes, it is pointed out that the former is the essential feature and excellent gene of continuous basalt fiber. This route is green and environmentally friendly, simple in process, small in investment, and excellent in comprehensive performance. However, its core technology is more difficult to innovate independently, and its raw materials are relatively single, which represents the development direction of green circular economy, and has great development prospects and social value.

　　 Ma Jianhua, assistant dean of the School of Materials Engineering of Xi'an University of Technology and director of the Department of Polymer, made a theme report titled "Wet spinning construction and multi-functional application of biomass based fiber materials", introducing the preparation and application of cellulose based functional fibers and sodium alginate based functional fibers. He mentioned that biomass is a valuable raw material resource for the development and functional application of renewable fiber materials. In addition to natural fiber spinning, in order to better expand the source of fiber raw materials, the chemical renewable fiber process is gradually developing in the direction of high added value, multi-function and green low-carbon with the development of technology. Cellulose, sodium alginate, chitosan and other biomass based materials are difficult to melt and process, so solution spinning (including wet spinning, electrostatic spinning, dry spinning) is the main process for the preparation of fibers from these materials; Through the selection of spinning solvent and the design of spinning solution, the synergy between functional particles and natural polymer materials can be realized, thus ensuring the synchronous realization of strength and function, which has certain scalability; After pilot production of biomass regenerated fiber, functional fabric can be prepared through knitting, weaving or knitting, and its application in strain sensing and flexible wearable fields can be realized through structural design.

　　 With the development of intelligent manufacturing technology, how to integrate the chemical fiber industry with the intelligent manufacturing era has become a top priority. Chen Xiaobing, the chairman of Hangzhou Ruiguan Technology Co., Ltd., made a keynote report on Thinking about the Integration of Traditional Manufacturing Industry and the Intelligent Era, introduced the changes brought about by key core technologies such as plate cleaning robot, intelligent AGV dropping tube, full-automatic packaging line and so on to the production and manufacturing of chemical fiber industry, and pointed out that intelligent manufacturing is the development direction of manufacturing industry in the future. Taking the automated and intelligent workshop system as an example, the system can dynamically track the data of each spindle, each spinning machine and each packet of silk, realize the visual integrated control of the whole process data, reduce labor costs and labor intensity, reduce manual errors, significantly improve the production quality and efficiency of single spindle information tracking, and extract products, equipment All data of production, environment and business are monitored dynamically at the same time, which effectively improves the company's efficiency, efficiency and effectiveness, and promotes the intelligent transformation of traditional manufacturing.

　　 Parallel theme forum (II):

　　 Chemical fiber green low-carbon technology forum

　　 Check the pulse of green new direction and low-carbon new technology

　　 On June 16, the "Chemical Fiber Green Low Carbon Technology Forum", the parallel sub forum of the China Chemical Fiber Science and Technology Conference (Hongze 2023), was successfully held in Hongze District, Huai'an. The forum focuses on the latest trend and progress of green development of chemical fiber industry from the dimensions of "green fiber" certification, cleaner production technology, polylactic acid fiber, green catalyst, green new process, Lyocell green fiber, etc.

　　 The forum was hosted by Fu Wenjing, Deputy Secretary General of China Chemical Fiber Industry Association.

　　 Li Deli, deputy chief engineer of China Chemical Fiber Industry Association, made a report titled "Self Certification of China's Textile and Chemical Fiber Industry - Green Fiber Mark (GF) Certification". He said that the green fiber certification mark is a certification trademark registered by the State Administration of Market Supervision and Administration. The China Chemical Fiber Industry Association is the holder of the green fiber mark and enjoys the exclusive right of the green fiber mark. At present, 40 enterprises have passed the green fiber certification, and the certified products cover recycled polyester, acrylic, Lyocell fiber, chitosan fiber, PTT fiber, polylactic acid fiber, and liquid dyed nylon, polyester, polypropylene, aramid, polyimide fiber and other varieties.

　　 Li Deli pointed out that the green fiber mark (GF) certification is based on a complete set of advanced standards, including the green low-carbon requirements of the production process, raw and auxiliary materials, and product quality; The second is to provide reliable services for consumers, producers and brands, and continuously optimize standards and certification systems to promote the transformation of production methods and consumption concepts; Third, it reflects China's soft power as a textile power.

　　 Chen Long, a professor of the School of Materials Science and Engineering of Donghua University, pointed out in the theme report "Research on Chemical Clean Recycling and Utilization of Waste Cotton and Polyester Textiles" that China is a major textile producer and consumer, and it is of great significance to increase the recycling of waste textiles. Chemical method is an effective way for high value utilization of waste textiles. In the synthesis of regenerated polyester from depolymerized monomer DMT of waste polyester, catalysts are needed for transesterification and polycondensation. There are many kinds of catalysts, and low catalytic active metal content is difficult to meet the requirements of production efficiency and high quality of regenerated polyester.

　　 Chen Long stressed that "more than 90% of PET production uses antimony based catalysts, but the heavy metal antimony will pose a serious threat to human health and the ecological environment. Antimony catalysts have become an important factor restricting the green development of the polyester industry, especially in the preparation of recycled polyester from waste polyester by DMT, it is urgent to develop efficient green catalysts that can ensure the quality of polyester."

　　 Fan Yaqing, the general manager of Anhui Fengyuan Biological Fiber Co., Ltd., mentioned in the report entitled "Non grain line production of polylactic acid to achieve green development of fiber industry" that polylactic acid fiber has excellent physical properties and wide applications. Its fabric has good dimensional stability, which integrates the comfort and warmth of cotton, the drape of viscose fiber, the strength of polyester fiber and the feel of silk, It has excellent wearability and can be widely used in clothing, home textile, decoration, sanitary materials and other fields. It is one of the most promising "green fibers" at present. "Poly (lactic acid) is a truly biodegradable bio based material. It does not use oil or coal. It truly practices the concept of 'green water and green mountains are golden mountains and silver mountains', and is an inevitable choice for green and sustainable development," said Fan Yaqing.

　　 Sun Bin, professor of School of Materials Science and Engineering of Donghua University, shared "DH HyTi hydrolysis resistant hybrid titanium catalyst and its industrial application in polyester". Sun Bin introduced the inevitability and importance of replacing antimony catalyst with titanium catalyst in the current industry, the key technologies of DH HyTi, the technical advantages of DH HyTi, and the collaborative innovation alliance to promote the common development of upstream and downstream industrial chains.

　　 Sun Bin said that the catalyst can improve the reaction rate and production efficiency in the chemical fiber production process, and it is a key raw material. At present, more than 90% of PET in the world use antimony based catalysts, mainly ethylene glycol antimony. However, antimony migration is harmful to human health and environment due to heavy metals, toxicity, cancer and other hazards. The impact on children is particularly serious, because children have higher digestion and absorption capacity of heavy metals, but do not have the corresponding resistance. Therefore, antimony based catalysts for green textiles and bottle polyester urgently need to be replaced.

　　 Sun Bin said that the green and environmentally friendly hybrid titanium catalyst (DH HyTi LCEJ) is resistant to hydrolysis and has a crystallization behavior similar to that of antimony based polyester resin. The resulting PET chips have high brightness and the b value reaches the first grade fiber standard. The titanium catalyst can reduce the reaction temperature in the polyester synthesis process, so it can effectively reduce the energy consumption in the production process; As titanium catalyst also has certain catalytic activity in esterification process, reducing reaction temperature can also reduce the generation of by-products, which relatively reduces the consumption of EG. The high activity of titanium catalyst can improve production efficiency.

　　 Luo Shuai, director of market research and development of Shanghai Juyou Chemical Co., Ltd., shared the "PET chemical recovery process and methods". Luo Shuai introduced the current situation of polyester recovery and reuse, methods of polyester recovery and reuse, Juyou chemical waste polyester recovery technology, economic analysis, nylon yarn recovery analysis. He analyzed the three stages of the development of China's recycled polyester industry, including the scale and differentiated products, the current mainstream physical and chemical recovery process routes, the treatment of main raw materials and the difficulties of recovery technology. It pointed out that the chemical process is relatively complex, suitable for large production scale, low production consumption, high product viscosity, and high product added value. The alcoholysis oligomer can remove the solid impurities in the raw material through the online multistage filter. The ethylene glycol removed in the reaction can bring out the small molecules in the raw material, which greatly improves the color of the fiber. The viscosity of the product can be increased to 0.65 or even 0.75. Juyou's engineering technology has strong adaptability to raw materials, and various low-end raw materials can be used alone; High quality products, can produce a variety of specifications of filament, staple fiber; It can be recycled for many times; Low operation cost, EG can be recycled; It almost does not produce three wastes, no secondary pollution, and has the advantages of high economy.

　　 Yu Shunping, Deputy General Manager of Green Fiber Co., Ltd. of Textile Academy, shared the theme report of "technology leadership, brand empowerment, green fiber @ not 'Lai'". Founded in 2015, China Textile Academy Green Fiber Co., Ltd. is a holding subsidiary of General Technology High tech Materials. It has the first single line 60000 ton new solvent cellulose fiber production line independently designed and manufactured with technology and full set of equipment in China, and is the first enterprise in China with full independent intellectual property rights of Lyocell fiber. At present, Zhongfang Green Fiber has a capacity of 90000 tons of green fiber, which is the world's leading Lyocell fiber enterprise.

　　 Yu Shunping introduced the latest product of Zhongfang Green Fiber Bamboo ®、 Green fibre ® Ucel and Green Fiber ® Innovate and develop new fashion. Green fiber bamboo ® And green fiber ® Uysel has excellent antigenic fibrinolytic properties, that is, it is not easy to fuzz and pilling under external force, and has good tensile and compression resistance. Green fiber bamboo ® With high color absorption saturation, bright color, soft gloss, high fluffy lightness, lubrication and delicacy, soft and light, it has the same soft feeling as cotton and the same smooth feeling as silk. Green fiber bamboo ® Fully biodegradable in natural state. According to the test, after 40 days, green fiber bamboo ® The natural degradation rate can reach more than 99%. Its textiles return to nature through recycling and degradation. Green fibre ® The cross-linking rate of Yossel has reached more than 90%, and the fabric produced at the client end has reached international standards. At present, green fiber series products have been widely used in the field of infant and child products and sanitary products.

　　 Parallel theme forum (III):

　　 Forum on Preparation Technology of Functional Fiber Materials

　　 Focus on innovation trend and break through technical difficulties

　　 On June 16, the parallel theme forum of China Chemical Fiber Science and Technology Conference (Hongze 2023) - functional fiber material preparation technology forum was held. The forum focuses on fiber technology innovation technology, flame retardant fiber manufacturing process, research and development progress and application of intelligent fabrics, innovative ideas of polyester differential fiber, green production of biomass fiber, technology development of in-situ polymerization solution dyed polyester fiber, development of homogeneous and isomeric multi-component composite elastic fiber The latest technology, R&D progress and market demand of functional fiber are expounded from many dimensions, such as the development trend of low melting point sheath core composite polyester fiber.

　　 The forum was hosted by Wang Yongsheng, Deputy Director of Marketing Department of China Chemical Fiber Industry Association.

　　 Chemical fiber is the basic raw material of textile, which is directly related to the national economy and people's livelihood, such as fashion, comfort, safety and health, resources and environment. From clothing, home textile, safety protection, automobile interior decoration and other industrial uses, to urban greening, the application field of fiber materials has been expanding. Ji Peng, associate researcher of the Textile Science and Technology Innovation Center of Donghua University, introduced the application technology of new monomers and catalysts in polyester, the preparation and application technology of new functional masterbatch for fiber in the report of "Technological Innovation and Development Trend of Fiber Materials". Ji Peng pointed out that there are three major trends in the technological innovation and development of fiber materials, one is the forming and processing mechanism of fiber materials; The second is the green and low-carbon property of fiber materials in the whole life cycle; The third is to establish a smart research platform for fiber materials.

　　 Shi Meiwu, the former professor level senior engineer of the Military Quartermaster Engineering Technology Research Institute of the Academy of Military Sciences, made a report entitled "New Progress in Flame Retardant Technology of Cellulose Fiber", introducing the advantages of cellulose and cellulose fiber, the development status and problems of flame retardant cellulose fiber, the flame retardant processing method of cellulose fiber, the structure and performance of flame retardant Lyocell fiber The application of flame-retardant cellulose fiber, the key points of flame-retardant Lyocell fiber manufacturing process and the solutions to common problems in manufacturing were analyzed.

　　 Dr. Li Pan from Huazhong University of Science and Technology made a report on "Intelligent Fabric Technology for Sports and Health", introducing the new progress in the field of intelligent fabrics. First, based on the new design technology of multi-level fabric structure with nano particles in fibers and micro structures between fibers, this technology has realized a new idea of 0.3~25 μ m wide spectrum photothermal management of optical metamaterial fabrics. The fabrics have both wearability and break through the limitations of existing functional fabrics such as sunscreen and cool feeling, so as to achieve a temperature drop of 5 ° C for human body coverage and 30 ° C for car body coverage. The second is intelligent fabric technology, which is a new high-precision channel coding method for electronic fabrics, and has achieved an interaction accuracy of up to 96%. Its innovative research and development of the noninvasive intelligent perception life monitoring equipment can solve the problem of improving the collection speed and accuracy of human vital signs such as breathing, heart rate, body temperature, action modes and other data without binding. Third, intelligent biotechnology, mainly medical fiber robots, is biased towards clinical research.

　　 With the rapid growth of domestic chemical fiber production capacity, the situation of supply exceeding demand is becoming increasingly prominent. It is urgent to improve the differentiation rate of chemical fiber products. Research and development of differential fiber have become urgent. In particular, as a leading chemical fiber enterprise, Tongkun Group Co., Ltd. actively plays a leading role in the transformation and upgrading of chemical fiber industry products, improving product added value, and improving product differentiation rate, It provides power for chemical fiber enterprises to improve economic efficiency, enhance market competitiveness and healthy and sustainable development. Li Guoyuan, manager of the Quality Management Department of Tongkun Group Co., Ltd., introduced the differentiated and functional fibers such as bicomponent fiber, full dull fiber, extra black fiber, mixed fiber, recycled fiber in the report "Research and development direction and innovation ideas of polyester differential fiber", and pointed out the ideas of future differential fiber research and development innovation, old products are used, and the consumption is expanded; New use of old products and increased use; New products are used for the old, and product substitution is enhanced; New products are newly used and innovative products are developed.

　　 In the report "Development and Application of Fungus Fiber", Xie Yueting, chief engineer of Xinxiang Chemical Fiber Co., Ltd., introduced the research and development background, development status and future planning of the fungus fiber. After three years, Xie Yueting's scientific research team of Xinxiang Chemical Fiber Egret New Materials Research Institute has successively overcome many scientific research problems, mastered the whole set of technology from one grass to one silk, successfully developed a series of products of fungus regenerated cellulose fiber, and realized the application of fungus in the industry of regenerated cellulose fiber for the first time. At present, Xinxiang Chemical Fiber is stepping up efforts to tackle the problem of recycling of waste textiles, so that when a grass enters the company, it can realize the whole process of recycling and realize the sustainable development of cellulose fiber.

　　 Jin Jian, the deputy director of the Science and Technology Committee of the Chinese Academy of Textile Sciences Co., Ltd., made a report entitled "Technological Development of In situ Polymerization Solution Colored Polyester Fiber", introducing the market status, main production technologies, research progress and application of in situ polymerization. At present, the production technology of stock solution dyed fiber includes chip blending master batch spinning, online melt adding direct spinning and in-situ polymerization spinning. Among them, in-situ polymerization spinning has the advantages of low production cost and is suitable for mass production. This technology has obvious advantages in solving the core problems such as the dispersibility of pigment particles and the interface compatibility between pigment particles and the matrix in the original solution dyed polyester; The filament fineness, color depth, color uniformity and other quality indicators of the fiber were significantly improved.

　　 Jiangsu Sanlian New Materials Co., Ltd. focuses on "specialty, precision, specialty, and innovation", innovates materials, and empowers brands. Focusing on the demand of terminal brands for "elasticity, green, and comfort", it builds professional technology systems such as bio based and regenerative recycling composite spinning, and integration of texturing and grid connection, creates an innovative platform for high shape and low carbon functional fibers, and integrates the industrial chain, Form a competitive advantage of rapid response and efficient customization. Yang Zhaozhen, director of the new product department of Jiangsu Sanlian New Materials Co., Ltd., introduced the development background of multi-component elastic polyester fiber, multi-component elastic polyester fiber preparation technology, multi-component polyester elastic fiber texturing and composite technology in the report entitled "Development and industrial application of homogeneous and heterogeneous multi-component composite elastic fiber". She said that polyester is the leading variety of chemical fiber, and the development of functionalization and low-carbon is the major trend. Multicomponent elastic polyester fiber is one of the important components of comprehensive comfort products, which conforms to the concept of low-carbon, energy saving and emission reduction.

　　 Fujian Minruixin Synthetic Fiber Co., Ltd. was originally engaged in polyester fiber and other synthetic fibers. There are 4 original production lines of recycled polyester staple fiber, with an annual capacity of 90000 tons. Transformation and upgrading are realized by developing high-end low melting point sheath core composite fibers. At present, it has the most comprehensive evaluation laboratory for the whole process of "raw materials - fiber manufacturing - non-woven processing" in the industry. Zhuo Zhiming, the deputy general manager of Fujian Minruixin Synthetic Fiber Co., Ltd., said in the theme report entitled "Development trend of low melting point sheath core composite polyester fiber" that low melting point polyester fiber is one of the important raw materials for producing nonwovens, accounting for 28% of the application of nonwovens (according to the European nonwovens Association). Low melting point skin core composite polyester fiber has the characteristics of good comfort, high reproducibility, and can realize non-woven molding between fibers. Therefore, it is widely used in the fields of clothing, home textile padding, automobile interior, shoe materials, etc. In recent years, the market demand has grown rapidly, which is a research and development hotspot in the chemical fiber industry.