Conventional defect inspection for warp-knitted lace relies on manual work and negative-sample-based training, resulting in low efficiency, frequent false detections and poor adaptability. This study presents a novel AI visual inspection system centered on positive-sample learning, which is built upon a five-layer 5G + Industrial Internet distributed architecture. Supported by modified looms, high-precision imaging devices and an optimized YOLOv5s model, the system accomplishes intelligent defect detection. A positive-sample self-learning paradigm and dual-model collaboration mechanism are proposed to reduce the demand for negative samples and cut labeling expenses. The integration of CBAM, FPN + PAN structure, self-supervised learning and hybrid loss further strengthens the recognition performance for subtle defects under complex patterns. Industrial tests show that the system reaches a grid-level classification accuracy of 95% and a frame-level detection rate over 98%, with a detection speed of 30 m/min. It reduces labor costs and product reject rates by 40% and 30% correspondingly while running stably in real production. This method breaks the constraints of traditional training modes, provides a scalable intelligent solution for the digital upgrading of the warp-knitted lace industry, and promotes the high-quality development of textile manufacturing.
This paper presents a comprehensive study on the design, development, and industrial application of an AI-driven defect detection system for warp-knitted lace fabrics, enhanced through 5G edge computing and machine vision. The system addresses key limitations of traditional manual inspection, including high labor cost, high omission rates, and inefficiency. Through innovations such as one-class classification (OCC), dual-stage defect classification, MEC-enabled low-latency processing, and digital-twin traceability, the proposed approach enables real-time monitoring, automatic machine stoppage, and full-process quality management. Experimental deployment across multiple weaving and inspection machines demonstrates significant improvements in detection accuracy, production efficiency, and labor reduction. The study provides an industrially validated reference for digital transformation in textile manufacturing.
The flame-retardant cotton fabric used for welding protective clothing in the market exhibits insufficient melt hole resistance. We evaluated the stainless steel filament fabric for flame retardancy and melt hole resistance and found that it lacked sufficient comfort. A stainless steel filament and a cotton yarn were plied and twisted together and then woven following a set of specifications. The fabric was finished with a flame retardant, and its performance and flame retardancy were determined. The results indicate that the twist direction during ply twisting affects the fabric performance. Relative to the pure cotton fabric, the stainless steel filament/cotton composite fabric exhibits reduced comfort properties, such as moisture permeability and air permeability, but the mechanical properties and flame retardancy are improved. Ply twisting a stainless steel filament and a pure cotton yarn with an S twist presents certain advantages in enhancing the comprehensive performance of the fabric and exhibits potential for advancements in welding protective clothing.
The number of fiber components of polyester filaments has an important influence on the strength and feel of filaments and textile products. The number of polyester filaments can be adjusted by selecting the number of spinneret holes on the spinneret plate during spinning. Four kinds of polyester pre-oriented filaments (POFs) with different linear density were prepared from different production lines, named as POF1 (144 dtex/36 f), POF2 (185 dtex/48 f), POF3 (145 dtex/72 f), and POF4 (280 dtex/96 f), respectively. By testing and analyzing these filaments, their differences in micro-structure and properties were discussed. The morphology, molecular structure, thermal properties, and mechanical properties of four kinds of polyester POFs were characterized by means of scanning electron microscopy, Fourier infrared spectroscopy, X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, filament color, and mechanical properties. By analyzing the difference of four kinds of polyester POF with different linear density in various characteristics, it provides guidance for the industrial production of polyester filament and the improvement of filament level. Experimental results show that they have smooth overall appearance, no major defects, and good spinnability. The degrees of order of the four kinds of polyesters were all lower than 5%. The degrees of orientation of the four kinds of polyesters were all about 80%. In terms of thermal properties, the larger the linear density is, the higher the melting temperature is. For color results, the higher the reflectance value of polyester filaments, the darker the color of polyester filaments. In addition, the breaking elongation and static and dynamic friction properties of POF1, POF2, and POF4 are close and they are all larger than POF3, which may be explained bf the fact that the linear density of polyester POF3 is significantly lower than that of the other three polyester POFs.
Stainless steel fiber exhibits excellent flame retardancy and melting resistance, but it lacks thermal and moisture comfort. To compensate for these shortcomings, stainless steel fiber was blended with Lyocell fiber in ratios of 0/100, 10/90, 20/80, and 30/70%. The blended yarn was then formed into a single-sided plain stitch fabric of stainless steel fiber and finished with a phosphorus-nitrogen flame retardant. Next, the effects of the blending ratio on the fundamental properties, thermal and moisture comfort, and flame retardancy of the blended yarn and its fabric were studied. Considering these parameters alongside cost, the 10% stainless steel fiber-blended fabric was the optimal choice and showed potential applications for updating and upgrading welding service fabrics.
Linear density, as an important index of industrial filament production, has a vital impact on the performance of filament products, but there are few relevant studies. In order to further investigate the effect of the change of linear density on the performance of polyester filament in the process of industrial filament production. By replacing different spinnerets, five kinds of polyester full-stretch filament with different linear densities were prepared and named FDY. By testing and analyzing five kinds of polyester FDY filament, the differences in structure and properties of five kinds of FDY filament are discussed. The morphology, molecular structure, thermal and mechanical properties of five kinds of polyester FDY filaments were characterized by means of scanning electron microscopy, Fourier infrared spectroscopy, X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, filament color and mechanical properties. The results show that the molecular structure, crystallinity and orientation of polyester FDY filament are not affected by changing the linear density by changing the spinneret. In terms of heat, the melting point temperature and enthalpy of polyester FDY filament increase as linear density increases. In terms of optics, the lower the linear density of FDY, the lower the reflectivity of FDY. As the wavelength increases, the reflection of FDY decreases first and then increases. The reflectance is minimal when the wavelength is 670 nm. In terms of mechanical properties, the breaking strength and elongation at break of polyester FDY decrease with the decrease of linear density. In this study, it is found that changing the linear density by changing the spinneret has specific effects on the performance of polyester filament in various aspects, which has guiding significance for the analysis of influencing factors on the performance of industrial filament in the process of industrial production.
Reinforcement of fibers was carried out by adding carbon black (CB), and hydroxylated and carboxylated carbon nanotubes (CNTs) into electrospinning solution containing doped polyaniline (CSA-PANI) and polyacrylonitrile (PAN). CB/CSA-PANI/PAN and CNT/CSA-PANI/PAN electrospun nanofiber composite membrane was formed in high-voltage electric field. The CSA-PANI/CB/PAN fiber membrane was found to be more brittle than the MWCNTs/CSA-PANI/PAN fiber membrane. The average diameter of the CSA-PANI/CB/PAN nanofibers increased with CB addition, while the average diameter of CNT-added MWCNTs/CSA-PANI/PAN nanofibers decreased with increasing CNT concentrations. Upon greater CB and CNT addition, agglomeration occurred, and the surface of the fibers was raised slightly. The fracture strength of the nanofiber membrane was greatly improved with 1% added CB but then decreased upon further CB addition. Upon addition of CNTs, the fracture strength of the nanofiber membrane first increased and then decreased, and the addition of carboxylated CNTs was more advantageous for improving the fracture strength of the fiber membrane. The electromagnetic shielding performance of the fiber membranes was essentially the same for different radiation frequencies. Upon addition of CB and CNTs, the electromagnetic shielding performance of the fiber first increased and then decreased, with a more pronounced decrease obtained by the addition of CB.
Polyimide (PI) nanofiber membranes (NFMs) via electrospinning demonstrate widespread applications with an intrinsic drawback of lower mechanical performance, which could be improved with multi-wall carbon nanotubes (MWCNTs). PI NFMs was fabricated via a simple thermal induced imidization of polyamic acid (PAA) NFMs and MWCNTs/PI composite NFMs were also investigated on the effect of MWCNTs on morphology, mechanical performance, and its possible carbonization. Such simply thermal induced imidization of PAA demonstrates successfully to be PI, and small amounts of MWCNTs could reduce the diameter and distribution of MWCNTs/PI nanofibers, and coarse and granular-like surface appeared on MWCNTs/PI composite nanofibers as the MWCNTs was increased up to 1.0 wt.%. Notably, addition of MWCNTs improved thermal stability and mechanical performance of MWCNTs/PI composite NFMs, but it lowered the mechanical performance of such composite NFMs at higher carbonization temperatures, which makes its carbonized NFMs even more inclined to be fragile and fracture.
The rapid development of the textile industry has led to the demand for more advanced textile equipment because the current covering yarn machines are large and expensive and have a large physical footprint. Also, the current technology is unsuitable for most laboratory research and small factory proofing. In this paper, the principle of forming covered yarn is analyzed and simplified in three systems: the unwinding system, the covering system, and the winding system. A small sample of low volume and better flexibility is developed, the production process and primary structure of the covered yarn prototype are introduced, and the covering effect of the small prototype is debugged and analyzed.
To cultivate outstanding engineering talent capable of both adapting to and spearheading regional economic and social progress, as well as to facilitate the transformation and advancement of local economies and to promote collaboration between universities and regional economies, practical teaching bases should be established. Through the strategic alignment and interactive development of practical teaching bases, it may be possible to deepen the integration between industry and education, as well as the interactions between universities and enterprises. Thus, successful teaching bases leverage the academic strengths of universities and the resources offered by businesses. The approach to industry-education integration revolves around refining the model of collaborative education between universities and enterprises, with a specific focus on refining the talent development process. A case of innovative yarn development design within a spinning study practice teaching base is analyzed in this study to investigate the approach. Within this base, student teams have developed ultra-comfortable yarn, stainless steel fiber/lyocell flame-retardant blended yarn, and stainless steel filament/cotton ply-twisted composite yarn. The case study exemplifies the potential for effective cooperation between universities and enterprises in nurturing talent, leveraging dual-teacher training, providing societal contributions, facilitating employment opportunities, and fostering entrepreneurial initiatives. This collaborative model shows significant potential for comprehensively enhancing the quality of talent cultivation, thereby propelling regional economic and social development.
电焊行业在现代工业中具有重要地位,为了避免电焊工作过程中飞溅物落在衣物上造成融穿现象,以不锈钢纤维与棉纱并线加捻技术制成的320 T/M不锈钢棉混纺纱作为原料,设计三种不同的织物组织制备机织面料,并对其进行阻燃整理,研究组织结构对面料的舒适性及阻燃性的影响.结果表明,缎纹织物的透湿性及透气性最好,5/3 纬面缎纹最为柔软,三种织物中5/3 纬面缎纹的织物阻燃性能最好.可为不锈钢纤维阻燃产品的开发与设计提供参考.
The Weaving Technology course is a first-class course at Minjiang University. After a three-year construction period, a series of teaching reform experiences have been formed. This article primarily summarizes the innovations in the practical aspects. The course includes eight experimental practice hours. In the experimental practice session, students are required to design and develop multiple series of woven fabrics with visual errors. Each design group must fully understand and appropriately apply various elements of visual illusions, combining visual illusion images to make the designed works more dynamic, novel, and artistic. This innovative practice is a comprehensive test of students’ imagination and the mechanical weaving process operation, providing an interesting exploration experience for course design.
不锈钢金属纤维是一种功能性纤维,具有特殊的性能,市场潜力巨大.文章从不锈钢金属纤维的制备方法、产品类型等方面进行了论述,介绍了其在防护服领域的巨大应用价值,并从改善不锈钢金属纤维的抱合性和与基体界面结合力的表面处理方面做了实验研究,发现强酸表面处理不锈钢金属纤维后,纤维直径变细,表面出现凹凸不平的空穴.研究结论对于更好地应用不锈钢金属纤维具有参考意义.
芳纶面料难以染色,影响了其个性化应用.文章通过控制磁控溅射工艺参数对蓝色芳纶面料进行结构着色,利用镀层后金属膜光发生反射、衍射、干涉等物理作用产生不一样的颜色.经实践,成功对蓝色底色的芳纶面料附加了灰色、银色以及不同程度的金色.研究成果对于难染面料的着色具有一定的参考价值.
This study focuses on the fabrication of fiber membranes containing different concentrations of AgNO3 via the electrospinning technique. The AgNO3 present in the fibers is subsequently reduced to silver nanoparticles (Ag NPs) through UV irradiation. The resulting nanofiber film is characterized using scanning electron microscopy, X-ray diffraction, and evaluations of its anti-UV and anti-electromagnetic radiation properties. Experimental results demonstrate that increasing the AgNO3 content initially decreases and then increases the fiber diameter and fiber diameter deviation. Under UV light, the nanofibers fuse and bond, leading to an increase in the fiber diameter. AgNO3 is effectively reduced to Ag NPs after UV irradiation for more than 60 min, as confirmed by the characteristic diffraction peaks of Ag NPs in the XRD spectrum of the irradiated AgNO3/PVB fibers. The nanofiber film containing AgNO3 exhibits superior anti-UV performance compared to the film containing AgNO3-derived Ag NPs. The anti-electromagnetic radiation performances of the nanofiber films containing AgNO3 and AgNO3-derived Ag NPs are similar, but the nanofiber film containing AgNO3-derived Ag NPs exhibits higher performance at approximately 2.5 GHZ frequency. Additionally, at an AgNO3 concentration of less than 0.5 wt%, the anti-electromagnetic radiation performance is poor, and the shielding effect of the nanofiber film on medium- and low-frequency electromagnetic waves surpasses that on high-frequency waves. This study provides guidance for the preparation of polyvinyl butyral nanofibers, Ag NPs, and functional materials with anti-ultraviolet and anti-electromagnetic radiation properties.
In recent years, three kinds of auxetic yarns have mainly been developed, namely helical auxetic yarns based on the ring spinning system and the hollow spindle system and braided auxetic yarns based on the braiding system. However, these auxetic yarns have some drawbacks, such as an unstable structure or no obvious auxetic effect. In this paper, auxetic yarns were successfully braided by wrap filaments and a core filament based on a braiding system, which overcame the slippage problem in the traditional helical yarn structure. Yarns were spun by different structural parameters of the core filament, the wrap filaments and braiding filament, including the diameter ratio, braiding speed and different numbers of wrap filaments. The results showed that all parameters have an impact on the Poisson's ratio of auxetic yarns and, in addition, the braided auxetic yarns can cause the yarns to be in the pre-stretching state; once the stretching effect occurs, the Poisson's ratio will directly change from a negative value. Since the new auxetic yarns were produced using a high-speed braiding machine and filaments, this would pave the way for their mass production. This provides a certain research basis for mass production of the stable auxetic yarn structure, and based on the realization of the pre-stretching state, it also provides more possibilities for future research.
本文尝试设计开发一款既能满足高温特殊工作者的工作需求又具有多功能作用的袖子,即"阻燃防护服形状记忆袖子",通过面料的选用、结构层次的设计开发、配合合理的工艺和美观的设计等进行项目研究与成品制作.本设计是对目前功能性服装、功能性服装部件、功能性面料的探索,致力于让技术更好地服务于人们的日常生活.
"和合"思想是中华文明源远流长、历久弥新的秘密,是博大精深中华优秀文化的精髓所在.中国文化讲究寓道于器,中国传统服饰文化作为日常生活及精神的重要载体,有着丰富的文化内涵.论文将中国服饰文化中所蕴含的和合思想、天人合一的哲学思想进行凝练,将中国传统服饰宽松舒适廓形表现出的平和气质、中华民族图腾与传统纹样传达的和合精神、团圆中式构图体现的和合审美,以及以服饰为媒介的民族和合共融等思想精髓提炼出来,以期展示中国服饰和合之美.
Abstract This study evaluated the factors influencing loyalty to an online clothing shop among college students. A survey was first conducted, and responses were compared. The main factors were identified and screened, and a sample of college students was selected. Likert-scale questionnaires were distributed, and the scores were calculated. The total score associated with the attitude of each respondent was ultimately determined. The strength of the respondents' attitude towards each topic was extracted and calculated, and the results were measured to determine the factors affecting loyalty to online clothing shops among college students. The top three influencing factors identified were as follows: the prices of the items sold by clothing stores, the fashion popularity of clothing, and clothing comfort. Compared with the female respondents, the male ones paid more attention to the matchability of clothing in stores and the fashion popularity of the goods sold. Compared with the males, the females paid more attention to clothing comfort, quality, the merchant's logistics speed and customer service attitude.
This study attempted to fabricate heating fabrics using thin-film solar cells. A lightweight and flexible thin-film solar cell was used as the power supply, and fabric samples made of carbon fiber heating lines were used as heating elements. Single-factor experiments of three factors (solar cell voltage, heating time, and carbon fiber heating line arrangement) were conducted, and their influence on the heating effect was analysed. Orthogonal experiments and variance tests were used to determine the influence of the three factors and the optimal heating process. All influential factors were shown to be statistically significant. This kind of heating fabric can be used in warm clothing or for heated clothing.