Wool is a natural fiber with a high price, making it practical in the recycled fiber market. To reduce the cost of sorting fibers, terahertz waves have been used to extract parameters within the spectral information that is characteristic of wool fiber. Differences due to the specific surface shape (scale shape) and the terahertz measurement area were utilized for the identification. Characteristic features of wool content were observed between 19.4 THz and 19.8 THz by Fourier transform infrared spectroscopy measurements. At 19.5 THz, the reflectance decreased from 2.0% to 0.85% as the wool content increased. This is due to the scale shape of the wool surface causing scattering. Samples with more than 80% wool could be identified by 1.4% or less reflectance at this frequency. A mathematical expression for a reflectance that decreases as the wool content increases can be successfully expressed as an exponential function. In addition, a correlation between the surface structure of the sample and its anisotropy due to weaving to the polarized terahertz wave was confirmed. Due to the structural characteristics of the sample, there is an anisotropy of 45° or 90° which could be identified by a transmittance of 40%.
{"title":"Extraction of terahertz wave parameters that characterize woollen clothes","authors":"Toa Yoshizumi, Kazuma Iwasaki, Sho Fujii, Tsuyoshi Kimura, Masaya Yamamoto, Gaku Manago, Jeongsoo Yu, Tadao Tanabe","doi":"10.1177/00405175241268786","DOIUrl":"https://doi.org/10.1177/00405175241268786","url":null,"abstract":"Wool is a natural fiber with a high price, making it practical in the recycled fiber market. To reduce the cost of sorting fibers, terahertz waves have been used to extract parameters within the spectral information that is characteristic of wool fiber. Differences due to the specific surface shape (scale shape) and the terahertz measurement area were utilized for the identification. Characteristic features of wool content were observed between 19.4 THz and 19.8 THz by Fourier transform infrared spectroscopy measurements. At 19.5 THz, the reflectance decreased from 2.0% to 0.85% as the wool content increased. This is due to the scale shape of the wool surface causing scattering. Samples with more than 80% wool could be identified by 1.4% or less reflectance at this frequency. A mathematical expression for a reflectance that decreases as the wool content increases can be successfully expressed as an exponential function. In addition, a correlation between the surface structure of the sample and its anisotropy due to weaving to the polarized terahertz wave was confirmed. Due to the structural characteristics of the sample, there is an anisotropy of 45° or 90° which could be identified by a transmittance of 40%.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"1 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Three-dimensional hexagonal braiding technology is an advanced method with significant potential for producing geometrically complex, large-scale braided fabrics. However, efficient geometric modeling of such intricate braid architectures remains challenging. This article presents a topology-based parametric modeling framework to effectively link three-dimensional hexagonal braiding process parameters to resultant fabric structures. The core innovation is a modeling tool that swiftly generates the yarn network topology and complete three-dimensional geometry of braids based on specified production conditions without restrictions on the number of layers. We utilize this tool to simulate diverse braiding patterns and systematically assess the influence of key process variables on the emerging fabric configuration. We identify a unit cell motif in multilayered versions that may provide insights into mechanical properties. Then, to extend the tool’s utility, we introduce a novel concentric circle projection technique that enables structural modeling of hollow three-dimensional hexagonal braided tubes critical for high-performance composites. The versatility of this parameterization scheme could bolster the development of novel braid-derived engineering materials. Finally, tubular braided preforms and lamellar braided preforms were produced to verify the accuracy of the parametric modeling algorithm.
{"title":"Topology-based parametric modeling of three-dimensional hexagonal braids for advanced composite structures","authors":"Chengwei Ren, Xiaobo Gong, Zong Liu, Jinyu Li, Fang Xie, Fei Jia, Tao Zhang","doi":"10.1177/00405175241257723","DOIUrl":"https://doi.org/10.1177/00405175241257723","url":null,"abstract":"Three-dimensional hexagonal braiding technology is an advanced method with significant potential for producing geometrically complex, large-scale braided fabrics. However, efficient geometric modeling of such intricate braid architectures remains challenging. This article presents a topology-based parametric modeling framework to effectively link three-dimensional hexagonal braiding process parameters to resultant fabric structures. The core innovation is a modeling tool that swiftly generates the yarn network topology and complete three-dimensional geometry of braids based on specified production conditions without restrictions on the number of layers. We utilize this tool to simulate diverse braiding patterns and systematically assess the influence of key process variables on the emerging fabric configuration. We identify a unit cell motif in multilayered versions that may provide insights into mechanical properties. Then, to extend the tool’s utility, we introduce a novel concentric circle projection technique that enables structural modeling of hollow three-dimensional hexagonal braided tubes critical for high-performance composites. The versatility of this parameterization scheme could bolster the development of novel braid-derived engineering materials. Finally, tubular braided preforms and lamellar braided preforms were produced to verify the accuracy of the parametric modeling algorithm.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"8 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Combining the micro-perforated panel, air gap, and porous material under a multi-layer composite absorber framework has been proved to help obtain absorption enhancement. Theoretically and experimentally, the multi-layer system can extend the absorption value and associated bandwidth, although the desired improvements are not always present. For this purpose, theoretical models, experimental validation, and sensitivity analysis are performed where woven fabric, air gap, and nonwoven are considered as micro-perforated panel, air gap, and porous material, respectively. It is expected that this leads to a better understanding, particularly of the most critical parameters affecting associated behaviors. This understanding should be beneficial for a practical design procedure amid many parameters involved in the composite textile material. For the same textile materials, the results show that not all parameters involved are important in determining overall behavior, while influential parameters dictating the resulting behaviors are different for different sequences of elementary textile material in the multi-layer composite. This suggests that selecting optimal design parameters in the multi-layer composite needs great care.
{"title":"Influential properties on sound-absorption behavior of textile material-based multi-layer composite","authors":"Iwan Prasetiyo, Ainil Khairin Nisa, Gunawan Gunawan, Damar Rasti Adhika, Indra Sihar","doi":"10.1177/00405175241260434","DOIUrl":"https://doi.org/10.1177/00405175241260434","url":null,"abstract":"Combining the micro-perforated panel, air gap, and porous material under a multi-layer composite absorber framework has been proved to help obtain absorption enhancement. Theoretically and experimentally, the multi-layer system can extend the absorption value and associated bandwidth, although the desired improvements are not always present. For this purpose, theoretical models, experimental validation, and sensitivity analysis are performed where woven fabric, air gap, and nonwoven are considered as micro-perforated panel, air gap, and porous material, respectively. It is expected that this leads to a better understanding, particularly of the most critical parameters affecting associated behaviors. This understanding should be beneficial for a practical design procedure amid many parameters involved in the composite textile material. For the same textile materials, the results show that not all parameters involved are important in determining overall behavior, while influential parameters dictating the resulting behaviors are different for different sequences of elementary textile material in the multi-layer composite. This suggests that selecting optimal design parameters in the multi-layer composite needs great care.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"113 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-19DOI: 10.1177/00405175241259214
Yuan Tian, Zhaoqun Du, Dongming Zheng, Haochen Zou
In order to evaluate fabric style better, 20 down jacket fabrics of different types (material, structure, warp and weft density, surface texture) were selected for a variety of sensory style evaluations, including touch, vision and auditory sense, so as to understand the characteristics and quality of the fabrics more comprehensively. Based on the principal component analysis of 16 indexes obtained by the comprehensive handle evaluation system for fabrics and yarns (CHES-FY test), five principal components and comprehensive handle evaluation models were obtained. Various sensorial analyses were used to explore the relationship between tactile style, visual style, and auditory style. In order to combine the tactile, visual, and auditory styles to evaluate fabrics, a multi-sensory style evaluation instrument was developed based on the CHES-FY system. The results showed that there was significant correlation among the three sensory style indicators. By comparing the results obtained from the multi-sensory style evaluation instrument with other instruments, it was concluded that this instrument can simply evaluate the fabric style, combine the three senses of vision, touch, and hearing, provide a variety of combination information, enhance the availability of the instrument, and provide a new idea for the design of the fabric style evaluation instruments.
{"title":"Measurement and evaluation of down jacket fabrics by tactile, visual and auditory sense, Part I: objective evaluation","authors":"Yuan Tian, Zhaoqun Du, Dongming Zheng, Haochen Zou","doi":"10.1177/00405175241259214","DOIUrl":"https://doi.org/10.1177/00405175241259214","url":null,"abstract":"In order to evaluate fabric style better, 20 down jacket fabrics of different types (material, structure, warp and weft density, surface texture) were selected for a variety of sensory style evaluations, including touch, vision and auditory sense, so as to understand the characteristics and quality of the fabrics more comprehensively. Based on the principal component analysis of 16 indexes obtained by the comprehensive handle evaluation system for fabrics and yarns (CHES-FY test), five principal components and comprehensive handle evaluation models were obtained. Various sensorial analyses were used to explore the relationship between tactile style, visual style, and auditory style. In order to combine the tactile, visual, and auditory styles to evaluate fabrics, a multi-sensory style evaluation instrument was developed based on the CHES-FY system. The results showed that there was significant correlation among the three sensory style indicators. By comparing the results obtained from the multi-sensory style evaluation instrument with other instruments, it was concluded that this instrument can simply evaluate the fabric style, combine the three senses of vision, touch, and hearing, provide a variety of combination information, enhance the availability of the instrument, and provide a new idea for the design of the fabric style evaluation instruments.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"6 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-19DOI: 10.1177/00405175241259209
Mei Shunqi, Li Kai, Wu Xichun, Chen Jia
We focus in this review on the pre-processing devices used, the cotton pipeline, the rejection system, the acquisition and processing of information from images of raw cotton, and measurements of the rate of dynamic flow of the cotton stream. The results show that raw cotton fluffs into a material with a more uniform thickness, and adequately separating the cotton bunch can improve the subsequent detection and removal of foreign fibers in it. Moreover, research that combines the structure of the cotton pipeline with the optimization of the structure of the nozzle plate is important for improving the rejection of foreign fibers in cotton. Furthermore, a combination of multiple light sources and arrays of charge-coupled device cameras can improve the quality of images of raw cotton, but such key parameters as the power and wavelength of the source of light need to be optimized. As any single algorithm for image segmentation and feature extraction struggles to adapt to the identification of different kinds of foreign fibers, it is important to explore a combination of algorithms to this end, and to develop new techniques of foreign fiber detection based on deep learning. Finally, the structure and parameters of processing of the system for the identification and removal of foreign fibers are important, including the relative distance between the sensor and the nozzle, the width of the detection channel, and the rate of flow of the cotton stream.
{"title":"Analysis of progress in research on technology for the detection and removal of foreign fibers","authors":"Mei Shunqi, Li Kai, Wu Xichun, Chen Jia","doi":"10.1177/00405175241259209","DOIUrl":"https://doi.org/10.1177/00405175241259209","url":null,"abstract":"We focus in this review on the pre-processing devices used, the cotton pipeline, the rejection system, the acquisition and processing of information from images of raw cotton, and measurements of the rate of dynamic flow of the cotton stream. The results show that raw cotton fluffs into a material with a more uniform thickness, and adequately separating the cotton bunch can improve the subsequent detection and removal of foreign fibers in it. Moreover, research that combines the structure of the cotton pipeline with the optimization of the structure of the nozzle plate is important for improving the rejection of foreign fibers in cotton. Furthermore, a combination of multiple light sources and arrays of charge-coupled device cameras can improve the quality of images of raw cotton, but such key parameters as the power and wavelength of the source of light need to be optimized. As any single algorithm for image segmentation and feature extraction struggles to adapt to the identification of different kinds of foreign fibers, it is important to explore a combination of algorithms to this end, and to develop new techniques of foreign fiber detection based on deep learning. Finally, the structure and parameters of processing of the system for the identification and removal of foreign fibers are important, including the relative distance between the sensor and the nozzle, the width of the detection channel, and the rate of flow of the cotton stream.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"33 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-15DOI: 10.1177/00405175241251842
Chaoxu Han, Yan Guo, Ruirui Yang, Shuyue You, Mina Han
Composite medical dressings are made by combining different materials to achieve functions that cannot be realized by a single material, making it an important research direction for medical dressings. This study utilized the unique grooved structure of lotus stem fibers, and the functionality provided by different preparation processes for each layer of material to prepare a medical dressing that can achieve super-strong liquid absorption and storage effects. The prepared materials were characterized and analyzed through liquid absorption performance tests, Fourier transform infrared spectroscopy and scanning electron microscopy. The results showed that the pore structure of modified chitosan hydrogel, the curled distribution of lotus stem fibers in the material, and the moisture-wicking structure contribute to improving the liquid absorption properties. The composite dressing prepared using the optimal process for each layer of material exhibited moisture absorption and retention rates of 591.34% and 87.99%, respectively, demonstrating excellent liquid absorption properties. The antibacterial properties of the composite dressing were also tested against two common bacteria, and the dressing showed good antibacterial performance. The results indicated that the self-assembled composite medical dressing made from lotus stem fibers meets the preparation requirements, and has good application prospects for use in medical dressings.
{"title":"Self-assembled composite fabrics of lotus stem fiber with ultra-high liquid absorption properties","authors":"Chaoxu Han, Yan Guo, Ruirui Yang, Shuyue You, Mina Han","doi":"10.1177/00405175241251842","DOIUrl":"https://doi.org/10.1177/00405175241251842","url":null,"abstract":"Composite medical dressings are made by combining different materials to achieve functions that cannot be realized by a single material, making it an important research direction for medical dressings. This study utilized the unique grooved structure of lotus stem fibers, and the functionality provided by different preparation processes for each layer of material to prepare a medical dressing that can achieve super-strong liquid absorption and storage effects. The prepared materials were characterized and analyzed through liquid absorption performance tests, Fourier transform infrared spectroscopy and scanning electron microscopy. The results showed that the pore structure of modified chitosan hydrogel, the curled distribution of lotus stem fibers in the material, and the moisture-wicking structure contribute to improving the liquid absorption properties. The composite dressing prepared using the optimal process for each layer of material exhibited moisture absorption and retention rates of 591.34% and 87.99%, respectively, demonstrating excellent liquid absorption properties. The antibacterial properties of the composite dressing were also tested against two common bacteria, and the dressing showed good antibacterial performance. The results indicated that the self-assembled composite medical dressing made from lotus stem fibers meets the preparation requirements, and has good application prospects for use in medical dressings.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"35 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-14DOI: 10.1177/00405175241261401
Ji-seon Kim, Jooyong Kim
This study contributes to respiratory pattern detection by introducing a fabric sensor utilizing capacitance measurement and a semi-supervised machine learning algorithm known as an AI-based autoencoder. The sensor, consisting of two embroidered electrodes composed of silver-coated conductive nylon filaments, leverages the body as a dielectric material. In the research, a garment-type respiratory sensor was employed to continuously monitor respiratory data during both static (standing) and dynamic (walking, brisk walking, running) actions. The sparse autoencoder algorithm was particularly employed for individual static and dynamic actions, effectively distinguishing respiratory patterns corresponding to various movements. In addition, the sparse autoencoder helps prevent overfitting, fundamentally minimizing errors between the compression and reconstruction of signals. The maximum number of epochs was set to 2000, and the target error was set at 0.005. All data were compared against the static walking as the training baseline. Ultimately, the root mean squared error (RMSE) between static postures averaged 0.1, while the RMSEs between dynamic actions of walking, brisk walking, and running were 0.61, 0.91, and 2.78, respectively. These results suggest that movement detection through error detection is practically feasible and possesses discernible capabilities.
{"title":"Detection of human movement by combining supervised machine learning and an embroidered textile capacitance sensor","authors":"Ji-seon Kim, Jooyong Kim","doi":"10.1177/00405175241261401","DOIUrl":"https://doi.org/10.1177/00405175241261401","url":null,"abstract":"This study contributes to respiratory pattern detection by introducing a fabric sensor utilizing capacitance measurement and a semi-supervised machine learning algorithm known as an AI-based autoencoder. The sensor, consisting of two embroidered electrodes composed of silver-coated conductive nylon filaments, leverages the body as a dielectric material. In the research, a garment-type respiratory sensor was employed to continuously monitor respiratory data during both static (standing) and dynamic (walking, brisk walking, running) actions. The sparse autoencoder algorithm was particularly employed for individual static and dynamic actions, effectively distinguishing respiratory patterns corresponding to various movements. In addition, the sparse autoencoder helps prevent overfitting, fundamentally minimizing errors between the compression and reconstruction of signals. The maximum number of epochs was set to 2000, and the target error was set at 0.005. All data were compared against the static walking as the training baseline. Ultimately, the root mean squared error (RMSE) between static postures averaged 0.1, while the RMSEs between dynamic actions of walking, brisk walking, and running were 0.61, 0.91, and 2.78, respectively. These results suggest that movement detection through error detection is practically feasible and possesses discernible capabilities.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"63 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1177/00405175241266616
Xiuchen Wang, Miaomiao Kang, Yajing Wang, Zhe Liu
The opening area has an important effect on the overall protective performance of electromagnetic shielding (EMS) garments, but its mechanism and influencing laws are not clear. In this paper, a semi-anechoic chamber is adopted to construct a testing system, and a tying and covering method is proposed to test the shielding effectiveness (SE) of the garment with different parameters of opening area. Combined with electromagnetic theory, experimental results are analyzed, and influence laws and mechanisms of the opening area on the overall SE of the garment are discovered. Based on this, some new ideas for designing and evaluating EMS garment are proposed. We conclude that the opening area has a reducing effect on the SE of the garment in the frequency range of 1–3 GHz. The larger the size of the opening area, the more obvious the effect is. When reaching a certain size, the value of overall SE reaches zero or can even be negative, resulting in a significant decrease in the protective performance of the garment or even complete loss of its protective effect. The distance between the opening and the test point has a significant influence on the SE of the garment: the closer the distance, the greater the influence is. The opening closest to the testing point has a decisive effect on the overall SE of the garment. The style of opening area has a significant influence on the SE of the garment: pleated or inclined shape can improve the SE. Based on the above rules, a multi-index comprehensive weighted testing evaluation method for an EMS garment that fully considers the influence proportion of each opening is proposed, providing a scientific reference for the design, production, testing, and evaluation of EMS garments.
开口面积对电磁屏蔽服装的整体防护性能有重要影响，但其作用机理和影响规律尚不明确。本文采用半消声室构建测试系统，提出了绑扎覆盖法测试不同开口面积参数下服装的屏蔽效能（SE）。结合电磁理论，对实验结果进行了分析，发现了开口面积对服装整体屏蔽效果的影响规律和机理。在此基础上，提出了一些设计和评估 EMS 服装的新思路。我们得出结论：在 1-3 GHz 频率范围内，开口面积对服装的 SE 有降低作用。开口面积越大，效果越明显。当达到一定尺寸时，整体 SE 值为零，甚至可能为负值，导致服装的防护性能显著下降，甚至完全丧失防护效果。开口与测试点之间的距离对服装的 SE 有很大影响：距离越近，影响越大。最靠近测试点的开口对服装的整体 SE 有决定性影响。开口区域的样式对服装的 SE 有重大影响：褶皱或倾斜形状可提高 SE。根据上述规则，提出了一种充分考虑各开口影响比例的 EMS 服装多指标综合加权测试评价方法，为 EMS 服装的设计、生产、测试和评价提供了科学参考。
{"title":"Effect and mechanism of the opening area on the shielding effectiveness of an electromagnetic shielding garment","authors":"Xiuchen Wang, Miaomiao Kang, Yajing Wang, Zhe Liu","doi":"10.1177/00405175241266616","DOIUrl":"https://doi.org/10.1177/00405175241266616","url":null,"abstract":"The opening area has an important effect on the overall protective performance of electromagnetic shielding (EMS) garments, but its mechanism and influencing laws are not clear. In this paper, a semi-anechoic chamber is adopted to construct a testing system, and a tying and covering method is proposed to test the shielding effectiveness (SE) of the garment with different parameters of opening area. Combined with electromagnetic theory, experimental results are analyzed, and influence laws and mechanisms of the opening area on the overall SE of the garment are discovered. Based on this, some new ideas for designing and evaluating EMS garment are proposed. We conclude that the opening area has a reducing effect on the SE of the garment in the frequency range of 1–3 GHz. The larger the size of the opening area, the more obvious the effect is. When reaching a certain size, the value of overall SE reaches zero or can even be negative, resulting in a significant decrease in the protective performance of the garment or even complete loss of its protective effect. The distance between the opening and the test point has a significant influence on the SE of the garment: the closer the distance, the greater the influence is. The opening closest to the testing point has a decisive effect on the overall SE of the garment. The style of opening area has a significant influence on the SE of the garment: pleated or inclined shape can improve the SE. Based on the above rules, a multi-index comprehensive weighted testing evaluation method for an EMS garment that fully considers the influence proportion of each opening is proposed, providing a scientific reference for the design, production, testing, and evaluation of EMS garments.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"82 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141930466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1177/00405175241265511
Xueming Fang, Zhijia Dong, Pibo Ma
Healthcare medical textiles require local microclimate control over sweat transmission and evaporation. However, existing strategies mainly focus on complicating the preparation process or sacrificing breathability and comfort. Herein, we design a lightweight and scalable knitted fabric featuring a double-layer structure consisting of hydrophilic ultrafine polyester and hydrophobic conventional yarns to achieve high moisture transport. These fabrics displayed an ideal directional water transport ability (one-way moisture transport capacity 718%) and anti-regurgitation compared with common cotton fabric. By distributing pores within the textile structure, these fabrics additionally exhibited beneficial water evaporation and heat dissipation. Simultaneously, the theoretical calculation verified that while the bottom layer has increased fiber density and looping area, fabrics are conductive to unidirectional moisture transport. These findings highlight the potential of variable pore knitted textile for personal sweat management, healthcare comfort regulation, and the relief of global energy issues.
{"title":"Highly efficient sweat transmission of double-layer variable pore textile for human healthcare and comfort regulation","authors":"Xueming Fang, Zhijia Dong, Pibo Ma","doi":"10.1177/00405175241265511","DOIUrl":"https://doi.org/10.1177/00405175241265511","url":null,"abstract":"Healthcare medical textiles require local microclimate control over sweat transmission and evaporation. However, existing strategies mainly focus on complicating the preparation process or sacrificing breathability and comfort. Herein, we design a lightweight and scalable knitted fabric featuring a double-layer structure consisting of hydrophilic ultrafine polyester and hydrophobic conventional yarns to achieve high moisture transport. These fabrics displayed an ideal directional water transport ability (one-way moisture transport capacity 718%) and anti-regurgitation compared with common cotton fabric. By distributing pores within the textile structure, these fabrics additionally exhibited beneficial water evaporation and heat dissipation. Simultaneously, the theoretical calculation verified that while the bottom layer has increased fiber density and looping area, fabrics are conductive to unidirectional moisture transport. These findings highlight the potential of variable pore knitted textile for personal sweat management, healthcare comfort regulation, and the relief of global energy issues.","PeriodicalId":22323,"journal":{"name":"Textile Research Journal","volume":"6 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141930467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-08DOI: 10.1177/00405175241264522
Adeel Abbas, Muhammad Sohaib Anas, Waqas Ashraf, Habib Awais, Tabrej Khan, Omar Shabbir, Mansour Aloufi
In the modern era, there has been a significant interest in intelligent materials. Smart textiles’ capacity to be employed primarily in healthcare settings for pressure-sensing applications has increased their popularity; however, the thermal microclimate is not being significantly focused. The primary goal of this research is to analyze the thermal microclimate of knitted shoe soles developed using a variety of materials and knitted structures. Acrylic and silver-coated polyamide yarn have been used to develop textile structures, including single jersey, honeycomb, double pique, cross miss, birds eye, and pique. The knitted materials varied in their combination of knit, tuck, and miss stitches. Dry fluids transmission, wet fluids transmission, and heat retention capabilities of specimens have been analyzed to investigate the thermal microclimate. Static charge and electrical resistance tests were used to evaluate the pressure-sensing performance. Overall, the honeycomb construction performed better in terms of thermal comfort attributes. A similar trend was observed for pressure sensing performance, in which fabrics composed of tuck and miss stitches showed efficient pressure sensing owing to fewer yarn bending points in the structure. The data were also analyzed statistically by performing the analysis of variance test in which the significance of studied input variables was obtained with P values less than 0.05.
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