Scientific And Technological Innovation Makes China'S Textile Industry Step Into The Advanced Ranks Of The World

2020 is the end of the 13th five year plan. China's textile industry has achieved the goal of becoming a powerful country ahead of many manufacturing industries. Just last month, the Chinese Academy of Engineering released the report "strategic research on promoting the construction of a manufacturing power facing 2035". Through the international comparative analysis of 26 representative manufacturing industries, it is concluded that the five industries such as textile have reached the world advanced level as a whole. Sun Ruizhe, President of China Textile Industry Federation, commented that textile technology innovation has entered a new stage of coexistence of "following, running and leading".

Independent innovation meets the major needs of the country

Today's world is experiencing a great change that has not happened in a hundred years. The domestic and foreign environment that China's textile industry is facing has undergone profound and complex changes, which also puts forward more urgent requirements for speeding up scientific and technological innovation. The industry pays more attention to original innovation and independent innovation.

When it comes to independent innovation, it is necessary to mention Zhongfu Shenying. The project of "key technologies for engineering of 100t ultra high strength carbon fiber" led by the company won the first prize of science and technology progress award of China Textile Industry Federation in 2020.

Carbon fiber is a key material for weapon equipment and strategic emerging industries. It is also a new material for foreign countries to implement technology blockade and product monopoly for a long time. China has broken through the preparation technology of 1000 tons of T700, T800 high performance carbon fiber, but the dry jet wet spinning t1000g ultra-high performance carbon fiber engineering technology is still blank. Based on independent innovation, Zhongfu Shenying takes the lead in building a 100 ton ultra-high strength t1000g carbon fiber production line in China, realizing the industrialization development of t1000g carbon fiber, laying a foundation for the localization of key equipment materials, and effectively ensuring the development of key military products. The breakthrough of t1000g further shortens the gap between China's high-performance carbon fiber and foreign countries, improves the independent and controllable ability of China's high-performance carbon fiber, solves the "neck sticking" problem of high-performance carbon fiber used in weapons and equipment to a certain extent, and meets the urgent needs of national defense and military key models for carbon fiber localization.

In addition, Zhongfu Shenying Carbon Fiber Co., Ltd. has also won the Sixth China Industrial Award for the "key technology and application of 1000 ton dry jet wet spinning high strength / medium modulus carbon fiber industrialization". The project takes the lead in realizing the key technology breakthrough and core equipment autonomy of dry jet wet spinning in China. It has built the first 1000 ton dry jet wet spinning carbon fiber production line, and has become the third and the first enterprise in the world to master the industrialization technology of dry jet wet spinning carbon fiber. It has broken the market pattern of domestic high-performance carbon fiber monopolized by imported products. The products are widely used in pressure vessels, carbon carbon composites, wind turbine blades and other high-end and emerging fields, driving the rapid development of domestic carbon fiber composite industry.

In recent years, lyocel fiber has been a hot spot in the industry. In the past year, domestic Lyocell fiber industrialization project has achieved leapfrog development. On October 29, the successful start-up of the "60000t / a new solvent based cellulose industrialization project" of China Textile Research Institute Green Fiber Co., Ltd. marks the completion of the largest domestic single line Lyocell fiber production project with China's independent intellectual property rights. The project adopts the Lyocell fiber industrialization technology independently developed by China Textile Institute. The green fiber of China Textile Corporation has a production capacity of 90000 tons of Lyocell fiber, becoming the first domestic production capacity and the second largest production enterprise in the world. Industry authorities said that this is a milestone in promoting the technological innovation and core competitiveness of China's renewable cellulose fiber field.

Science and technology help textiles enter the sea

With the deepening of textile science and technology innovation, textile products are also constantly expanding new space. Some people say that today's textile products can not only reach the moon, but also enter the sea to subdue the dragon.

On December 3 last year, when the chang'e-5 probe took off from the lunar surface and successfully entered the planned orbit around the moon, we were shocked not only by China's first taking off of extraterrestrial objects, but also by the "independent display" of the five-star red flag on the surface of the moon for the first time. The five-star red flag shining on the moon can still "keep its original color" under the temperature difference of plus or minus 150 degrees Celsius, which shows China's textile strength.

In order to produce the national flag, Yantai Taihe new materials Co., Ltd., Anhui Huamao Group and Wuhan Textile University and other units have spent eight years, experienced numerous tests and continuous research and development. The national flag is mainly made of domestic high-performance aramid fiber, and adopts the "high-efficiency and short process embedded composite spinning technology" which won the first prize of national science and technology progress award by Wuhan Textile University, which overcomes the technical problems of high modulus differential fiber high-quality yarn preparation. The color construction of national flag is also a big problem. The research team realized the structure control and color construction of aramid fiber by using small molecule control technology, and achieved excellent light fastness under extreme ultraviolet conditions, which essentially solved the problem of pigment thermal blooming and heat migration fastness under extreme conditions. Through the above technical research, the purpose of high color fastness color construction of national flag under the conditions of extreme high vacuum, high and low temperature cycling, and strong ultraviolet radiation in space environment is realized.

"Heaven" has become the norm of textile science and technology innovation, and "entering the sea" has also achieved a breakthrough.

On May 7, last year, the polyester cable developed and produced by Zhejiang Sidong rope industry Co., Ltd. for one year was officially delivered to CNOOC Hainan Branch for the construction of production platform of Lingshui 17-2 gas field in the South China Sea. This is also the first time that China's domestic cable has been applied to the construction of deep-sea oil and gas field operation platform, successfully breaking the monopoly of Europe and the United States on deepwater mooring lines of offshore oil platforms for decades It has provided strong support for China to exploit deep-sea oil and gas resources in the South China Sea. The two polyester cables are 955m in length, 270mm in diameter and more than 2000 tons in tension, which are the largest in diameter and the highest in breaking strength among similar products in China. Sixiong rope industry has independently developed production equipment, which has overcome the technical problems of polyester cable in terms of tension, strength and fatigue resistance, so that made in China has a place in the field of deep-sea mooring.

Intelligent manufacturing makes industry get rid of labor intensive

At the end of last year, a news made the industry happy, Anhui Huamao new spinning intelligent transformation project won the China Industrial award. China Industrial award is the highest award in China's industrial field, representing the highest level of China's industrial development. Anhui Huamao award is not only the honor of this enterprise, but also the national recognition of the textile industry's scientific and technological innovation, transformation and upgrading.

In Huamao, Anhui Province, there are almost no people in the huge workshop; the environment is constant temperature and humidity, and the robot transports semi-finished products; the workers work and inspect by electric vehicles In my memory, in the traditional textile workshop, thousands of people's yarn and scenery are no longer there, the flying catkins all over the sky are not found, and the roar of machines is greatly reduced. Instead, there are rows of automatic machines, clean, neat and comfortable environment. The monitoring equipment can be seen everywhere to display the information of output, quality, equipment operation and energy consumption in real time. In view of the widespread problems of excessive labor and high energy consumption in the textile industry, Anhui Huamao Textile Co., Ltd. has independently developed a number of spinning intelligent manufacturing technology with independent intellectual property rights on the basis of its spinning production technology and experience accumulated for many years, which has achieved major technological breakthroughs in key fields. This 150000 spindle cotton spinning intelligent factory project with the largest monomer and leading technology in the world, uses Internet technology for the first time to realize customers' remote online monitoring of order details in the industry; uses big data technology to develop Huamao manufacturing execution system (HMEs); uses Internet of things technology, develops large-scale RFID Technology in the industry for the first time, and realizes single yarn whole process quality tracking and It is the first domestic textile industry to use EMS energy management system, which significantly improves the overall level of the industry. Through the innovation of management mode, the intelligent project breaks the barriers of working procedures and types of work, realizes the integration of operation and maintenance, and reduces the labor force of 10000 ingots from 50 to 13, and the product quality reaches the international leading level.

For a large textile manufacturing country, without strong independent brand equipment and system support, the implementation of intelligent manufacturing is a castle in the air.

The automatic winder is the most difficult and technically demanding equipment in textile machinery. It is the key equipment for the textile industry to stride into digitalization and intellectualization. At present, there are only four major manufacturers including Qingdao Hongda in the world. After years of continuous research, Qingdao Hongda "VCrO automatic winder" has made a breakthrough and won the first prize of "textile light" 2020 science and technology progress award of China Textile Industry Federation. Based on the breakthrough of winding, joint, centralized yarn supply and other technologies, the project has carried out 42 key technological innovations, realized long-term continuous automatic production, broke through the adaptability of splicer to special fibers, improved the control accuracy of constant tension and constant pressure of yarn, realized online quality tracking, which is of great significance to the rapid development of the spinning industry The realization of unmanned factory laid the foundation.

Medical and health textile technology provides scientific and technological support for fighting against epidemic situation

The global spread of Xinguan epidemic in 2020 is a comprehensive test for the textile industry. Facing the unprecedented pressure of supply and demand and systemic risks, China's textile industry has shown a strong basic ability. The complete industrial system and advanced manufacturing capability endow the industry with efficient response ability. Textile technology undoubtedly plays an important role in the fight against the epidemic, especially the technical achievements of medical and health textiles have become the focus of attention.

In the 17 projects of the first prize of China Textile Federation science and technology in 2020, the key technology of preparation of high-efficiency and low resistance PTFE composite fiber membrane protective material and electrostatic air jet spinning electret superfine fiber involve in improving the protective performance of masks, providing technical support for fighting against the new epidemic situation and ensuring the health and safety of the people.

The key of respirator protection is filter material. The traditional filter protection usually uses melt blown material. Its filtration efficiency comes from electrostatic adsorption, which is easy to decay and reduce the protection effect in the process of use and storage. Research and development of stable performance, low resistance and high efficiency filter materials have been monopolized by foreign companies for a long time. Zhejiang University of science and technology cooperates with many domestic enterprises to tackle key problems, innovatively invents PTFE nano fiber membrane as barrier surface, and develops stable high-efficiency and low resistance PTFE composite fiber membrane through composite technology, which is widely used in various mask protection materials. The material solves the pain point that the protective mask can not be reused. It has the characteristics of low resistance and high efficiency. It can perfectly replace the melt blown cloth. It can be widely used in the high-end medical protection and civil protection fields, and is the renewal and replacement of traditional protection products.

Electret fiber is a kind of new fiber with static charge. Compared with traditional fiber non-woven fabric, electret fiber increases electrostatic adsorption on the basis of physical interception function, and greatly improves the filtration capacity of fine particles. It is widely used in air filtration products such as protective masks and industrial filter paper. It is a kind of residence to protect national health and support national industrial development Polar fiber material. However, this kind of material still has the problems of easy failure and low physical filtration efficiency after failure, which greatly limits its service life. Especially in the new crown epidemic prevention and control, the problems of short service time of electret fiber materials and insufficient production capacity supply have brought great pressure to the epidemic prevention and control of countries all over the world. Through theoretical research, integrated innovation of technology and equipment, Donghua University and other units have developed the key technology of high-efficiency manufacturing of electrostatic jet spinning electret superfine fiber materials, and formed the industrialization system of electrostatic air jet spinning superfine fiber materials with independent intellectual property rights. This achievement promotes the upgrading of traditional melt blown and electrospinning technologies, solves the problem of low physical interception efficiency of current air filtration products, and makes contributions to the interception of bacteria and haze particles, protection of people's health and improvement of people's quality of life.

Regarding the achievements of textile science and technology, Li Lingshen, vice president of China Textile Federation, said that the innovation driven development strategy is in-depth implementation in the industry, and innovative achievements are emerging in the industry. The strength of textile science and technology is moving from quantity accumulation to qualitative leap, and from point breakthrough to system capability improvement.