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  • Information · Express
    CHINA FIBER INSPECTION. 2024, 588(9): 20-23.
  • Information · Express
    CHINA FIBER INSPECTION. 2024, 587(8): 16-19.
  • Standard · Forum
    LI Shen1, ZHAO Ruifang1, SUN Jin2, LU Cheng1, AI Yuanzhong2, WANG Dan2
    CHINA FIBER INSPECTION. 2024, 590(11): 93-95. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.001
    Enterprise standards are the cornerstone for enterprises to improve product quality, enhance market competitiveness, achieve independent innovation and leapfrog development.This article conducts a statistical analysis of the standard quality of down clothing enterprises in China, compares and tests it with current national standards, identifies differences in technical indicators, analyzes the standard quality of down clothing enterprises, identifies existing problems and reasons, and proposes corresponding countermeasures and suggestions.
  • Quality · Monitoring
    TAN Weixin, YAO Panpan, LUO Jun, JIANG Caifeng, WEI Zuchao
    CHINA FIBER INSPECTION. 2024, 590(11): 44-46. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.014
    This paper focuses on the general inspection situation of dried silkworm cocoons and raw silk in Guangdong province in 2023, including the basic inspection situation and overall quality analysis in 2023, the quality situation of dried silkworm cocoons in different regions and different cocoon seasons, analyzes the causes of quality problems and gives corresponding suggestions.
  • Testing · Technology
    ZHANG Chengyu, LI Chuangchuang, ZHANG Xingya
    CHINA FIBER INSPECTION. 2024, 590(11): 77-79. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.004
    In order to study the difference of the washing size change rate test results of different fabric structures and different materials of bedding products. According to the requirements of product standards, representative bedding samples were selected for testing, and the dimensional stability of different samples after washing size change rate test was compared and analyzed. The results show that the dimensional stability of bedding fabric with larger synthetic fiber content is better than that with higher cotton content for the sample with the same fabric structure. For samples with the same fabric material, the dimensional stability of woven bedding fabric is better than that of knitted fabric, that of plain fabric is better than that of twill fabric, and that of twill fabric is better than that of satin fabric.
  • Special · Commentary
    GU Na
    CHINA FIBER INSPECTION. 2024, 590(11): 20-23. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.018
    With the growing enthusiasm for outdoor activities and the enhancement of health awareness, the demand for sun-protective clothing, as an essential protective gear, has significantly increased. Through statistical analysis of extensive testing data on sun-protective clothing products, this article identifies the major factors contributing to product disqualification, including solar ultraviolet radiation protection performance, labeling, fiber composition, and functional testing items of sun-protective clothing. These functional testing items encompass moisture absorption and quick-drying, cool feeling in contact, air permeability, water-vapour transmission, and light blocking effect. The article delves into the introduction of relevant key items, analyzes the causes of disqualification, and finally puts forward suggestions for improving the quality of sun-protective clothing products.
  • Information · Express
    CHINA FIBER INSPECTION. 2024, 590(11): 16-19.
  • Testing · Technology
    ZHANG Huangbo, HUANG Jinyang, LIU Huishan, CHEN Hanlong, CHEN Ancheng
    CHINA FIBER INSPECTION. 2024, 589(10): 65-68. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.011
    A liquid chromatography-mass spectrometry (LC-MS) method was established for the rapid determination of 2- (4-tert butylbenzyl) acetaldehyde compounds in textiles. After shaking extraction and filtration, the samples were directly tested on the machine. Acetonitrile/water (80/20) was used as the mobile phase and separated using ZORBAX Eclipse Plus C18 chromatography column. The external standard method was used for quantification in MRM mode. Under optimized experimental conditions, the de- tection limit is 1.0 mg/kg, the quantification limit is 2.0 mg/kg, the spiked recovery rate is 80.8%~103.8%, and the relative standard deviation is 1.5%~8.1%. This testing method is simple to operate and has good sensitivity, and can quickly test 2- (4-tert butylben- zyl) propanal in textiles.
  • Quality · Monitoring
    XU Guiyong, LUO Li, LIU Jiaming, HAN Siyu, CHEN Yufeng
    CHINA FIBER INSPECTION. 2024, 589(10): 28-32. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.004
    The silk industry is a traditional characteristic industry in China and is in a critical stage of transformation and upgrading with sustainabili- ty and high-quality development as its goal. Based on a comprehensive and detailed statistical analysis of notarial inspection data, this paper popularizes the professional technical indicators and quality information. It also gives evaluations and suggestions from the perspective of quality monitoring, providing a reference for analyzing the current quality situation of cocoon and silk industry.
  • Special · Commentary
    LIN Kai
    CHINA FIBER INSPECTION. 2024, 588(9): 24-27. https://doi.org/10.14162/j.cnki.11-4772/t.2024.09.006
    As one of the pillars of global manufacturing, the textile fiber industry is standing at a historical turning point. The rapid advancement of science and technology and profound changes in society have brought a revolutionary wave of digitalization and intelligence to this traditional industry. With the integration of cutting-edge technologies such as digitalization, artificial intelligence, Internet of Things technology, intelligent manufacturing and big data, the production methods, product quality, market competitiveness and consumer experience of the textile fiber industry are undergoing profound changes, which has brought great changes to the textile fiber industry. Here comes unprecedented opportunities and vitality. This article will deeply explore the development direction and trends of the textile fiber industry in the digital and intelligent transformation, analyze the far-reaching impact of this transformation on the industry, and clarify the related challenges and opportunities, with a view to providing useful reference for the future development of the industry.
  • Research · Application
    DU Weidong, QIU Jihui
    CHINA FIBER INSPECTION. 2024, 590(11): 96-98. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.011
    The handmade carpets of Wada are a representative cultural card of the Xinjiang Uygur Autonomous Region and a valuable Chinese intangible cultural heritage, But the development of this industry is affected by many factors, and now it is almost stagnant.This article reviews the problems affecting the healthy development of handmade carpets in Wada, such as the basic situation of handmade carpets in Wada, the low level of trade specialization in the raw material industry, the insufficient ability of promotion and marketing in the product market, and the lack of patterns in the handmade carpets database, some suggestions are given for reference by relevant units and individuals.
  • Quality · Monitoring
    HUANG Cheng’en, LU Mingjie, GU Shuangshuang
    CHINA FIBER INSPECTION. 2024, 590(11): 47-49. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.016
    This article conducts in-depth statistical analysis of the quality monitoring results of supporting bedding products from 2021 to 2023, studies the focus of next supervision and inspection and proposes quality improvement and regulatory suggestions.
  • Testing · Technology
    DENG Junbao, GONG Xinling, YAN Haibo, DENG Feiyan
    CHINA FIBER INSPECTION. 2024, 590(11): 62-64. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.022
    This study designs a winding device for detecting the breaking strength and elongation at break of raw silk through in- vention, improves the detection method of raw silk breaking strength and elongation at break, enhances work efficiency, reduces the influence of human factors on the detection results, and improves the accuracy of the detection results, obtaining more objective and accurate data.
  • Fiber Inspection · Development
    CHINA FIBER INSPECTION. 2024, 590(11): 106-107. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.007
  • Testing · Technology
    SUN Chao, BAO Junfang, JI Xiaojie, LIU Binlu, WANG Bo, LIU Jinwei, SUN Na
    CHINA FIBER INSPECTION. 2024, 588(9): 52-54. https://doi.org/10.14162/j.cnki.11-4772/t.2024.09.008
    Impurity rate test is one of the important indicators of cotton notarization test, which provides a basis for cotton transaction price and fairness. CGT-1 intelligent tester of raw cotton impurity realizes the full automation of raw cotton impurity rate test, which plays an important role in the inspection of Xinjiang regulatory cotton. Due to the particularity of Xinjiang regulatory cotton inspection, it takes a long time, high strength, overload and uninterrupted operation during the peak period of cotton inspection, which is easy to increase the frequency of failure. Once the equipment fails, it will inevitably affect the normal inspection work. This paper summarizes the common faults in the operation of CGT-1 tester, and puts forward the corresponding solutions, which ensures the accuracy and stability of the test data and improves the test efficiency.
  • Testing · Technology
    ZHU Lanfang, SUN Feng, LI Ting, MA Bin
    CHINA FIBER INSPECTION. 2024, 588(9): 58-61. https://doi.org/10.14162/j.cnki.11-4772/t.2024.09.009
    In order to investigate the performance of corduroy cotton fabric flanging, the influence factors of corduroy fabric flanging test were analyzed, and the influence of 5 test parameters such as folding direction, applied load, friction rate, friction medium and fabric friction surface on the flanging of corduroy cotton fabric was studied by orthogonal test method. The wear condition of cloth surface is tested and analyzed by means of micro image processing and mass loss ratio calculation. The results show that the influence of 5 test parameters on fabric hem wear is statistically significant, and when the folding direction is inclined to 45°, the load is 500 cN, the rotation rate is 60 r/min, and the friction medium is grinding wheel, the mass loss of corduroy cotton fabric hem grinding is the largest.
  • Special · Commentary
    WANG Yimeng,JIANG Yuning
    CHINA FIBER INSPECTION. 2024, 587(8): 30-34. https://doi.org/10.14162/j.cnki.11-4772/t.2024.08.009
    In order to clarify the difficulties and breakthroughs of Chinese cashmere industry in the context of sustainable development to further improve its sustainability, the historical changes and development status of Chinese cashmere industry were reviewed. The difficulties and challenges faced by Chinese cashmere industry in terms of economic sustainability and ecological sustainability and innovations made in China in recent years to address sustainable development issues were analyzed in detail. Finally, the review pointed out that enhancing the influence of domestic cashmere brands and upgrading the cashmere production and processing industry would be the significant future development directions for the cashmere industry in China.
  • Quality · Monitoring
    SUN Jin1ZHAO Ruifang2LI Shen2LAI Shibin2CHEN Jian2
    CHINA FIBER INSPECTION. 2024, 587(8): 40-43. https://doi.org/10.14162/j.cnki.11-4772/t.2024.08.003
    Emergency relief materials of fiber and textile are the important part of emergency relief materials. They play an extremely important role in ensuring the effective implementation and implementation of relief work. This paper analyzes the stage quality, product category quality, key product quality, main unqualified items analysis, and quality of materials stored in the warehouse of emergency relief materials of fiber and textile products entrusted by the author’s unit and inspected by the procurement department in some regions, reflecting the quality status and existing problems of emergency relief materials of fiber and textile products, and puts forward quality improvement countermeasures and suggestions, With a view to improving the quality and safety of emergency relief materials such as fiber and textile.
  • Quality · Monitoring
    DONG Liou1 YU Yue1 LIU Hui1 XIE Ling2LI Danyang3
    CHINA FIBER INSPECTION. 2024, 587(8): 48-51. https://doi.org/10.14162/j.cnki.11-4772/t.2024.08.005
    In March 2021, the National People’s Congress of China passed the “14th Five-Year Plan,” emphasizing the promotion of consumption and the protection of consumer rights. Subsequently, Sichuan Province launched the “Reassuring and Comfortable Consumer Action Plan” and issued consumption service standards for the clothing industry. In 2023, the Sichuan Provincial Market Supervision Administration began conducting consumer environment monitoring and evaluation for the clothing industry to safeguard consumer rights and create a safe and reassuring consumption environment. This article mainly analyzes the results of this evaluation from three aspects: on-site inspections, questionnaire surveys, and quality testing, and provides relevant recommendations.
  • Special · Commentary
    YAN Xinyue, YI Hong, CAO Yuechan
    CHINA FIBER INSPECTION. 2024, 590(11): 24-27. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.002
    In recent years, with the rapid development of technology, automation and intelligent technology have gradually been applied in the textile inspection industry, greatly improving the efficiency and accuracy of inspection. This article elaborates on the current development of automation and intelligence in four categories of textile inspection: appearance inspection, physical performance inspection, chemical performance inspection, and functional inspection, and uses examples to analyze successful applications of automation and intelligent technology. Summarizing the intelligent and automated development in the field of textile inspection provides guidance for the high-quality development of the textile inspection industry.
  • Testing · Technology
    GUO Wen, HUANG Zhonghao, LONG Junchao, YU Yizhen
    CHINA FIBER INSPECTION. 2024, 587(8): 56-59. https://doi.org/10.14162/j.cnki.11-4772/t.2024.08.008
    Analyze and study the application value of artificial intelligence recognition technology in the identification of feather and down species, in response to the drawbacks of existing manual identification methods. Based on the characteristics of identifying down and feather species, an artificial intelligence recognition model was established, and the model was trained and iteratively optimized, ultimately forming a recognition model that can be used for identifying down and feather species. Through model training, model testing, and exploration of model and manual recognition time, the results show that the accuracy of model recognition in model training testing is greater than 98 %. After actual testing of the model, the results obtained by manual recognition method are basically consistent, and the time for model recognition is shortened by 68.8 % compared to manual recognition.
  • Research · Application
    LIU Yucheng1, 2, 3, HUANG Zongxiong1, 2, 3, ZHU Feng1, 2, 3, WU Shuming4, KE Pingping4
    CHINA FIBER INSPECTION. 2024, 589(10): 97-101. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.023
    Bamboo shoot shell cellulose was extracted from bamboo shoot shells using caustic soda treatment. Superabsorbent polymer(SAP) was prepared from bamboo shoot shell carboxymethyl cellulose(CMC) as the grafting skeleton, acrylic acid(AA) and acrylamide(AM) as monomers. The successful preparation of SAP was confirmed by infrared spectroscopy analysis. Single-factor experiments and orthogonal experiments were used to optimize the preparation conditions as follows: CMC dosage of 16%, m (AA):m (AM)=4:1, neutralization degree of acrylic acid at 60%, initiator dosage of 3.5%, crosslinking agent dosage of 1.5%, and the reaction was carried out at 60 ℃ for 1.5 hours. The SAP had absorption capacity of 518 g/g and salt tolerance capacity of 55 g/g. At room temperature, its water retention rate was as high as 99%, and it can be reused for multiple water absorp- tions, reaching 55.6% of the saturated absorption capacity within 1 hour.
  • Quality · Monitoring
    YUAN Bingnian1, WANG Xiujuan2, JIANG Youwei1, REN Shiying1
    CHINA FIBER INSPECTION. 2024, 589(10): 41-45. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.003
    Cotton official classification is an important technical support to promote the reform of cotton target price policy, but also an important guarantee to implement the effective supervision of cotton and promote the improvement of cotton quality. In 2023, the key indicators of cotton in Hami region increased significantly, with an average length of 29.29 mm, 0.39 mm higher than the average length of cotton in 2022, the average fracture ratio intensity of 29.86 cN/tex, 1.31 cN/tex more than 2022, 93.42% of cot- ton has reached up-to Micronaire value A + B grade, 7.07 percentage points more than that in 2022, reaching the national standard of high-quality cotton. There are some problems regarding cotton color grade and cotton consistency. The cause for the problems includes seed quality, cotton field management, and cotton harvesting, purchasing and processing. This paper has proposed the es- tablishment of a cooperation platform between industry-university-research to promote the development of modern agriculture, to construct the high-standard farmland, and to promote the high-quality development of cotton industry, characterizing modernization, intelligence and information of cotton production. Finally, there are four suggestions to strengthen quality supervision and technical assistance.
  • Special · Commentary
    XU Guiyong1, MU Lin2, LIU Jiaming1, LUO Li1, CHEN Yufeng1, HAN Siyu1
    CHINA FIBER INSPECTION. 2024, 590(11): 32-39. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.009
    This article is based on the official classification data of silkworm cocoons from relevant specialized fiber inspection institutions in 2023. Through in-depth analysis of the main quality indicators of various varieties of silkworm cocoons, it aims to reveal the advantages and disadvantages of different varieties of silkworms in terms of quality, and provide scientific and objective reference for the breeding, optimization and improvement of silkworm varieties, as well as industrial development in China.
  • Quality · Monitoring
    ZHAO Jie, LIU Junjie, SUN Yujie, QIN Caixia, CHENG Yangyunzi
    CHINA FIBER INSPECTION. 2024, 590(11): 50-52. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.005
    Cotton is a traditional economic crop and an important strategic resource in China. In order to promote the reform of the cotton quality inspection system, the Hutubi Cotton Notarization Inspection Laboratory in Changji Prefecture undertakes the notarization inspection work of cotton in the jurisdiction of Changji Prefecture every year. The inspection data can fully reflect the quality status of cotton in Changji Prefecture in 2023, and through careful analysis, identify the key to improving cotton flower quality and propose rational improvement strategies.
  • Testing · Technology
    ZHANG Xinhui1, CHEN Zheng2, CAO Yuechan1
    CHINA FIBER INSPECTION. 2024, 590(11): 54-57. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.020
    By performing DSC melting point tests on blends of polyamidoester and polyester fibers at different ratios during first and second heating cycles, and comparing with the melting point method using a microscope, it was demonstrated that in the sec- ond heating cycle test of DSC, the melting point of polyamidoester or polyester fibers cannot be directly obtained when the content is low in the blended sample. There are cases of missed inspections. Additionally, the melting point method using a microscope is more clear and intuitive for distinguishing the melting points of polyamidoester and polyester fibers in blended samples compared to the DSC melting point method, especially for samples with low polyamidoester content. Therefore, the melting point method us- ing a microscope is more suitable for identifying blends of polyamidoester and polyester fibers than the DSC melting point method, providing a practical theoretical basis for the identification of blended products containing polyamidoester and polyester fibers.
  • Testing · Technology
    LIU Lina, CHEN Tianyu, HUANG Xiao, CHEN Yizhou
    CHINA FIBER INSPECTION. 2024, 590(11): 58-61. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.017
    4 kinds of hydrostatic pressure methods commonly used of resistance to water penetration testing were compared and analyzed in this paper. Through observation and analysis the test end point phenomenon of common waterproof fabric, test comparison between the method with metal mesh and without metal mesh, and test comparison between the low hydraulic pressure method and the high hydraulic pressure method, to analyze the resistance to water penetration performance of different waterproof fabrics. The results show that, the multi-layer composite fabric and coated fabric often obtain higher hydrostatic pressure value in the test, and the typical third spot of water droplets cannot be observed, which will affect the determination of the end point of the experimenter and lead to the difference of the test results. the metal mesh installed in the test can disperse the force on the fabric surface, which can effectively prevent the sample from excessive deformation during the pressure process, but often obtain a higher hydrostatic pressure value. In the test process of high hydraulic pressure method, the water has not penetrated the fabric surface before reaching the pressure limit of the sample itself, causing the sample to burst and testing termination. This method is more suitable for the sample whose pressure value is much higher than the hydrostatic pressure value.
  • Research · Application
    CHEN Fengjiao, NIU Cuiping, TONG Junfei
    CHINA FIBER INSPECTION. 2024, 590(11): 99-105. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.024
    In the context of the "dual-carbon" strategy, the textile industry, as an essential traditional industry in China, the realiza- tion of its green development has become a core topic that requires urgent solution.Taking 111 listed firms from 2013-2022 as the sample of the study, this paper aims to make an impact analysis of digital transformation on the green development of the textile industry and to discuss the effect that entrepreneurship exerts on digital transformation and the green development of the textile in- dustry. The findings indicate that: (1) The greening of the textile industry is contributed to noticeably by the digital transformation.(2)Entrepreneurship positively moderates the impact of digital transformation on the green development of textile industry. (3) In the heterogeneity analysis, digital transformation has a prominent effect on the promotion of green growth of textile firms in state- owned, non-state-owned, and eastern areas, but not in the central and western areas.
  • Standard · Forum
    LV Zongyue
    CHINA FIBER INSPECTION. 2025, 594(3): 93-95. https://doi.org/10.14162/j.cnki.11-4772/t.2025.03.002
    GB 30585—2024 "Technical Specification for Safety of Children's Shoes" was released on May 28, 2024 and will be implemented on Jun 1, 2025. In order to implement this standard better, this article will compare and analyze the changes between GB 30585—2024 and GB 30585—2014 , The results will provide reference for personnel related to enterprises and testing units.
  • Testing · Technology
    LUO Wei, JIN Rongchen
    CHINA FIBER INSPECTION. 2025, 594(3): 63-65. https://doi.org/10.14162/j.cnki.11-4772/t.2025.03.001
    Calibration work is a important work to ensure the normal operation and data accuracy of the High Volume Instrument.Based on the "Calibration Specification for High Volume Instrument", this paper summarizes the actual working conditions and generalizes the common problems, causes and solutions in the calibration work of the High Volume Instrument, so as to provide useful references for the calibration work and thereby ensure the accuracy and reliability of the cotton fiber test data.
  • Special · Commentary
    ZHANG Shuai, ZHOU Xuan, LEI Lei, CHEN Ang
    CHINA FIBER INSPECTION. 2025, 594(3): 27-30. https://doi.org/10.14162/j.cnki.11-4772/t.2025.03.005
    Cotton is the most extensively cultivated natural fiber globally, with more than 100 countries participating in its commercial cultivation and widely utilized in both industrial and domestic products. To sustain its competitive advantage against other natural and synthetic materials, the cotton industry must integrate information technology in planting, production, and the comprehensive analysis of associated data. This article intends to provide an overview of the research on information technologies that advance the cotton industry, including unmanned aerial vehicle remote sensing, modern irrigation methods, intelligent topping techniques, versatile robot platforms, and mathematical models for economic application.
  • Testing · Technology
    WU Xiulian, LEI Ying, ZHANG Xiangjun, ZHOU Xinru
    CHINA FIBER INSPECTION. 2025, 594(3): 55-57. https://doi.org/10.14162/j.cnki.11-4772/t.2025.03.003
    The breaking strength is a routine testing item for textile woven fabrics and other processed products. This article compares the differences between the strip method and the grab method for testing the breaking strength of woven fabrics in details.Then, 8 sets of woven fabrics with different fabrics are selected, and the two testing methods are used for the breaking strength test. The data differences and reasons for the differences in the test results are thoroughly compared and analyzed. Based on the experimental results, corresponding suggestions were proposed in order to provide valuable references for laboratories and related institutions.
  • Standard · Forum
    DONG Huiling, NIU Fengying, DU Linna
    CHINA FIBER INSPECTION. 2025, 594(3): 103-105. https://doi.org/10.14162/j.cnki.11-4772/t.2025.03.022
    Knitted t-shirt is a kind of clothing that people like and are widely worn at home, leisure or sports. In order to better understand the implementation of GB/T 22849—2024 "Knitted T-shirt" standards, this article analysis the changes between the old and new standards in detail,in the end, the corresponding suggestions were put forward for the matters needing attention in the implementation of the new standards.
  • Standard · Forum
    LIU Qian, CHEN Xiaokang, ZHANG Li, ZHANG Dongbin, SHAO Jiajia
    CHINA FIBER INSPECTION. 2024, 590(11): 84-87. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.013
    This paper compares the differences between GB/T 32614—2023 "Outdoor sportswear-Water resistant garments" and GB/T 32614—2016 "Outdoor sportswear-Water resistant garments", it compared and analyzed mainly from the normative ref- erence documents, product type, internal quality requirements, appearance quality requirements,requirements content and decision rules.The paper provides a reference for the production of water resistant garments and related testing, so that users can understand and use the new standard more accurately.
  • Testing · Technology
    HU Miaochan, LIANG Hua, LIU Xia, YUAN Yubing, WENG Tongxi
    CHINA FIBER INSPECTION. 2024, 590(11): 68-73. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.019
    This article reviews the development process of domestic and foreign regulations on the control of perfluorinated and perfluorinated compounds (PFCs), and analyzes and summarizes the extraction technology and detection methods for perfluorinated compounds in clothing products. Hoping to provide more theoretical basis for the detection of perfluorinated compounds in cloth- ing products, and provide direction for future method development. At the same time, I call on the whole society to attach great im- portance to the detection of perfluorinated compounds.
  • Quality · Monitoring
    XU Li1, HUANG Xing2, WANG Weishi3
    CHINA FIBER INSPECTION. 2024, 590(11): 40-43. https://doi.org/10.14162/j.cnki.11-4772/t.2024.11.023
    This article focuses on analyzing the product quality of hotel public textiles after multiple washings. 80 batches of hotel public textiles in Jiangsu Province were selected for physical and chemical safety performance testing after multiple washings. The test results were statistically analyzed and the quality and safety status were evaluated to reveal potential risks.
  • Testing · Technology
    LI Shuyang1, CHEN Zheng2, CAO Yuechan1
    CHINA FIBER INSPECTION. 2024, 591(12): 63-67. https://doi.org/10.14162/j.cnki.11-4772/t.2024.12.009
    To address the challenges of difficult separation in the pre-treatment methods for detecting microplastics in soil, which lead to low extraction efficiency and inaccuracy, a pre-treatment method based on density separation-oxidative digestion has been established and parameters of the steps were compared and tested. Experiments were conducted on various flotation liquids, ultrasonic mixing times, static settling times, and drying temperatures. The results indicate that an ultrasonic elution time of around 30 min ~40 min is optimal. The dual-density flotation method using both NaCl and NaI shows an increased recovery rate for PE, PVC, and PET by 2.43%, 69.10%, and 59.82% respectively, compared to the use of NaCl alone. Furthermore, to avoid thermal damage to microplastics, the drying temperature was determined to be between 50 ℃ ~60 ℃. The use of 30% H2O2 for 24 hours of oxidative digestion was selected to remove organic impurities, and a settling time of at least 24 hours was ensured to ef- fectively separate soil impurities from microplastics. The pre-treatment method based on density separation and oxidative digestion established in this study is simple to operate with high recovery rates, and can provide certain technical support for the study of the decomposition and detection of various microplastics in soil.
  • Quality · Monitoring
    WU Tao, DU Zheng, CHEN Hanfen, LI Weijie, HUANG Jian
    CHINA FIBER INSPECTION. 2024, 589(10): 33-35. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.008
    Ramie raw hemp is processed into refined hemp through pre-treatment, acid leaching, alkali boiling, post-treatment, and other processing techniques. After further processing such as loosening and combing, it can be used for spinning or other purposes. This report is based on the GB/T 20793—2015 standard for refined ramie, combined with the notarized inspection data of refined ramie in Hubei Province in the past three years for statistical analysis. It identifies problems in the quality development of refined ramie and proposes suggestions from the perspective of quality monitoring for reference by relevant departments, industry organizations, and hemp spinning enterprises.
  • Quality · Monitoring
    JIN Rongchen, LUO Wei
    CHINA FIBER INSPECTION. 2024, 589(10): 36-37. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.002
    In the cotton official classification laboratory, the inspection and testing instrument often as a high load and long-term operation state, which is prone to the failures. This article discusses the reason and response methods for instruments, in order to improve the work rate of laboratory
  • Quality · Monitoring
    LI Shunjie1, WANG Dongqin2, GAO Kai1, ZHENG Yi1
    CHINA FIBER INSPECTION. 2024, 589(10): 38-40. https://doi.org/10.14162/j.cnki.11-4772/t.2024.10.005
    Starting from the 2023 cotton annual, adjust the complication of Xinjiang regulatory cotton public inspection. Through various statistics of the Xinjiang regulatory cotton miscellaneous mixed rate inspection sample in October 2023, analyze the situation of the Xinjiang regulatory cotton miscellaneous rate inspection for a period of time. It is recommended to provide valuable reference for Xinjiang’s regulatory cotton complication inspection and inspection equipment upgrade in the future.