Standard Quality: Cashmere Industry Testing Healthy Development, This Activity Is Indispensable!

　　 Reporter Guo Chunhua

　　 In order to maintain the healthy and orderly development of cashmere industry, cashmere Professional Committee of China Wool Textile Industry Association has organized a comparative test on the content of cashmere fiber every year since 2016 to improve the detection level of domestic cashmere fiber content. After several years of promotion, the activity has achieved obvious results, and inspired domestic and foreign scholars to study cashmere raw materials, digital detection and information application, manufacturing technology and product quality, etc.

　　 From October 21 to 22, it was sponsored by China Wool Textile Industry Association, CO organized by Inner Mongolia fiber quality monitoring center (national wool quality inspection and testing center), and undertaken by cashmere Professional Committee of China Wool Textile Industry Association, Inner Mongolia Erdos Cashmere Group Co., Ltd. and Inner Mongolia Dongke Textile Testing Service Co., Ltd, The 2021 technical exchange meeting on fluffy fiber content, cashmere free length and coarse ratio test supported by Beijing Hezhong Vision Technology Co., Ltd. and lambo (Suzhou) Intelligent Technology Co., Ltd. was held in Hohhot.

　　 Liu Jiaqiang, President of China Wool Textile Industry Association; Wang Li, director of fiber quality monitoring center of Inner Mongolia Autonomous Region; Wang you, deputy general manager of cashmere Business Department of Inner Mongolia Erdos Cashmere Group Co., Ltd. and director of cashmere Professional Committee of China wool Association; Peng Yanli, former president of China wool Textile Industry Association, Zhang Meirong, chief engineer of cashmere textile division of Inner Mongolia Erdos Cashmere Group Co., Ltd., attended the meeting.

　　 Wu Yanwen, Deputy Secretary General of China Wool Textile Industry Association, presided over the meeting.

　　 Comparison test upgrade

　　 Promote healthy and orderly development of the industry

　　 In order to further improve the overall detection level of the industry, strengthen the consistency of inspection methods and eyes, and reduce the differences between testing laboratories, this wool fiber comparison test has added no Plush length and coarse comparison test on the basis of the original pile fiber content comparison test. It is hoped that through in-depth analysis of the comparison test results, on-site observation of the inspection operation process Share the testing frontier technology, help enterprises use raw materials scientifically, and promote the healthy and orderly development of cashmere industry in China.

　　 In her speech at the meeting, Wang Li said that Inner Mongolia Autonomous Region has the largest grassland and natural pasture in China, and the cashmere industry is a traditional characteristic industry of the autonomous region. Among the 12 League cities in the region, 11 are involved in the cashmere industry. There are five high-quality white cashmere goat breeds, including Albas white cashmere goat, with an annual output of nearly 7000 tons of raw cashmere, accounting for about 50% of China's cashmere production and 40% of the world's cashmere production, It is the main production area of high-quality cashmere raw materials in China and even in the world, and also the largest cashmere products deep processing and export area. It has a complete industrial chain from product development, production to terminal sales. In recent years, the fiber quality monitoring center of Inner Mongolia Autonomous Region, based on the advantages of plush resources and the current situation of industrial development, has actively played the advantages of inspection and detection, and constantly improved the level of technical ability. In the future, it will promote the industrial transformation by institutional innovation, and promote the transformation of the whole industrial chain of cashmere fiber from the promotion of notarization inspection system, the implementation of dynamic monitoring of cashmere fiber fineness and standardized breeding, We will promote structural adjustment, transformation and upgrading of the plush industry.

　　 Liu Jiaqiang said that since the start of the wool fiber comparison test on April 9 this year, 41 testing institutions and enterprise laboratories across the country have actively participated in the test. After nearly half a year's work, the working group has successfully completed the summary and analysis of the test results. At the end of September, the "analysis report on the comparison test of wool fiber content, length without wool and crude content in 2021" has been released. Since the event was held in 2016, a total of 216 institutions and enterprises have participated in the event, and 600 people have participated in the training and exchange. Over the years, China Wool Textile Industry Association has been practicing the tenet of enterprise service and industry service. It has been working together with the wool textile industry to improve the application level of China's wool spinning technology and industrial development ability, and strive to build a complete industrial chain "from sheep to people", so as to jointly promote the sustainable, rapid and healthy development of wool textile industry. In the next step, China Wool Textile Industry Association will take the work of comparative test as the basis and condition for the development of the industry, and cooperate with industry insiders to jointly promote the high-quality development of China's wool textile industry.

　　 Explore cutting-edge technology and jointly push forward the industry

　　 In the technical exchange, seven industry experts were invited to introduce the experience of microscopic identification of cashmere fiber, the identification scheme of cashmere fiber cutting-edge technology, cashmere testing equipment and standards, etc., and representatives at the meeting expressed their great benefits.

　　 Tian Zhifang, engineer of Inner Mongolia Erdos Cashmere Group Co., Ltd. (dongke company), explained the comparison test on the basis of summarizing the results of the previous four fluff comparison tests, and made specific analysis and exchange on the difficult points encountered in the detection of four samples with actual cases. At the same time, she also explained the matters needing attention in the identification process. If you want to look at the whole appearance and accurately identify the typical morphological characteristics of various animal fibers, for the difficult fibers in the sample preparation, the sample should be cut longer in order to master more fiber characteristics information. In case of dark color samples, further qualitative and quantitative analysis should be conducted after color stripping, A variety of identification methods should be combined for detection.

　　 Pang Ruidong, deputy general manager of Inner Mongolia Erdos Cashmere Group Co., Ltd. (dongke company), analyzed the identification ability of 2021 cashmere comparison test. One of the animal fiber content comparison detection methods adopts AI method, which can accurately detect the content of cashmere and pure cashmere samples, but the detection ability of other animal fiber still needs to be improved. She also introduced the standards in the field of cashmere, as well as the detection methods of cashmere fiber length, fineness, coarseness and impurity content, and animal fiber content, as well as the relevant standards for cashmere knitwear, combed cashmere and combed cashmere fabrics.

　　 With the development of AI technology, many people wonder whether it is possible to realize automatic microscopic content test? For this problem, LV Xin, manager of software R & D Department of Beijing Hezhong Vision Technology Co., Ltd., thinks that the prospect of automatic microscopy technology is very optimistic, but there are still many problems in the implementation of specific practice scenarios. Therefore, a new Cu system based on digital twin is proposed. The detection of the system is not based on objective parameters, but a set of detection methods based on the subjective cognition of human beings. Its essence is a detection item with the core of human detection, that is, the detection results are determined by human with the aid of instruments. The new Cu system takes human detection as the core. It is not just an instrument, but a complete set of solutions. It has highly automated auxiliary detection ability, editing ability for the whole test process, and professional service ability around microscopic inspection project. It can reduce production cost, reduce manpower investment and be used for urgent test.

　　 Analysis of natural fiber? Is it textile? What's the best? The challenge?, Traditional detection? The method is identified by experts through optical microscope, and the test results depend on the experience and subjective judgment of experts, which is easy to reduce the reliability of the results. The new intelligent fiber detection technology developed by lambo (Suzhou) Intelligent Technology Co., Ltd? In order to identify the subjectivity, make the results more stable and objective, so as to optimize the fiber detection process. According to Chen Hao, R & D Manager of LANBO technology, with the continuous development of the technology, the number, source and variety of samples in the database are increasing, and the number of fiber extracted is increasing,??? The accuracy of cashmere identification algorithm is constantly improved, and the product functions are constantly enriched? The process is continuously optimized and applied in Ordos, kangsaini, Guangjian group, Intertek Tianxiang group and SGS.

　　 Tang Wenyang, a doctoral student in the Technical Research Institute of Wuhan Textile University, introduced the identification of wool and cashmere fiber by medulla cavitation method. This method is simple to operate, and it can be detected by setting program without human supervision. Moreover, it only needs small scale SEM detection, which does not require high requirements for the testing personnel; The cost is low, the tube furnace equipment is economical and durable, and the accuracy requirement of SEM equipment is not high, which can save the test cost; Fast and efficient, one tube furnace can heat treat multiple samples at the same time; It can be used to identify a variety of animal fibers, such as cashmere / sheep hair, yak hair / yak hair, and other animal fibers. It can also be used to qualitatively determine the maturity and quality of wool fibers.

　　 Zheng Tianjian, national first-class fiber inspector of Xinjiang Tiantong Xingye agriculture and animal husbandry science and Technology Co., Ltd., introduced an all-weather portable fluff fiber detector, which can be used for rapid detection of fineness, length, cashmere yield, short fiber rate and comfort, and has several subversive technologies. If the constant temperature and humidity chamber is not needed, it can be tested in the laboratory or outdoors, which realizes all-weather detection; The detection speed is only 40 seconds for each sample, and the fineness length can be completed at one time. The detection speed is 1000 times higher than that of common detection technology, and the detection cost is reduced by 60 times; No sample pretreatment is required; The detection accuracy is less than 0.22 μ M; Ordinary farmers and herdsmen can also operate, opening up new markets for animal husbandry, breeding, trade and processing. On the whole, the technology is fast, accurate, stable, economical and net.

　　 Xue juanli, director of raw material inspection of kangsaini group, introduced the experience of identifying Plush fiber. She believes that the quality inspection of carding cashmere requires standard fiber testing laboratory, advanced testing instruments, provincial craftsman level testers, strict management system and standardized operation methods. Kangsaini attaches great importance to various technical exchange activities organized by the industry, especially participates in the "wool fiber content comparison test" every year. Through the training, the company's wool fiber identification technology has been significantly improved. Kangsaini also often held cashmere test competitions to improve the technical level of testers. At the same time, she also supported the technical exchange activities of the industry. To a certain extent, she guided the inspection technicians of cashmere industry to improve their learning standards and strengthen their research on testing technology, which promoted the healthy development of China's cashmere industry. Then, Xue juanli introduced the experience of identifying Plush fiber with practical cases.

　　 In addition, the participants were also organized to observe the length test operation of cashmere free hand rafts. Everyone felt the fine operation skills closely and expressed their appreciation.

　　 Pang Ruidong, deputy general manager of Inner Mongolia Erdos Cashmere Group Co., Ltd. (dongke company), Tian Zhifang, engineer, and Wang Fang, senior technician of Inner Mongolia fiber quality monitoring center, were invited to carry out on-site inspection and analysis of the samples brought by the representatives and answer questions.

　　 The meeting also organized the participants to experience the new testing instruments on the spot.

　　 At the end of the meeting, Wang you, director of cashmere Professional Committee of China Wool Textile Industry Association and deputy general manager of cashmere Business Department of Inner Mongolia Erdos Cashmere Group Co., Ltd., affirmed and commented on the advancement of the new technology and new instruments introduced by the above experts, and pointed out that the fluff comparison test and detection technology exchange meeting has been held for five consecutive times, On the basis of maintaining the original fiber content comparison of special animals, this year, we added the on-the-spot observation of non Plush length, coarse content comparison and length detection, unified the detection vision and method, and improved the level of cashmere free detection. In the future, the cashmere Professional Committee of China wool Association will continue to hold similar seminars and exchange meetings to build an exchange platform for industry testing personnel and R & D personnel, so as to further improve the testing level of the whole industry.

　　 The conference also organized the participants to experience the new testing instruments at the meeting site, and visited the laboratory of Inner Mongolia fiber quality monitoring center.