Journal of Textile Engineering最新文献_第10页

Polymer/Alumina Nanofiber Composite Sheets with Anisotropic High Thermal Conductivity 具有各向异性高导热性的聚合物/氧化铝纳米纤维复合片材

Journal of Textile Engineering Pub Date : 2019-08-15 DOI: 10.4188/jte.65.67

Akiyoshi Ohgoshi, Shuya Gao, Kazuya Takahashi, K. Nakane

{"title":"Polymer/Alumina Nanofiber Composite Sheets with Anisotropic High Thermal Conductivity","authors":"Akiyoshi Ohgoshi, Shuya Gao, Kazuya Takahashi, K. Nakane","doi":"10.4188/jte.65.67","DOIUrl":"https://doi.org/10.4188/jte.65.67","url":null,"abstract":"The performance of an electronic product depends on how efficiently it can dissipate the heat of its parts. As a result, intensive ongoing research seeks to improve the thermal conductivity of polymeric materials. In this study, we investigate magnesia nanofibers as thermal conductive filler in the resin and compared them to conventional spherical filler. Magnesia nanofiber mats were fabricated by electrospinning a solution of polyvinyl alcohol and magnesium ethoxide mixtures; they were then impregnated with resins to obtain a composite sheet. We assessed the thermal conductivity of the composite sheet. The resin sheet with aligned magnesia nanofibers content (49 vol%) had high thermal conductivity (12.9 W/mK) in the direction parallel to the aligned magnesia nanofibers. The conductivity increased in proportion to magnesia nanofiber content. In addition, the magnesia nanofiber composite sheet showed anisotropic thermal conductivity derived from the fiber direction and had electrical insulation (7.7 × 1012 Ω/□), and flexibility. These electrically insulating sheets with anisotropy in thermal conductivity would be useful in designing effective heat removal paths in electronic devices.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90525387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Classification of 3D-body Curved Surface Shape of Adult Females in the Extensive Age Group Using Angle Curvatures 用角度曲率对大年龄组成年女性三维身体曲面形状的分类

Journal of Textile Engineering Pub Date : 2019-08-15 DOI: 10.4188/jte.65.55

T. Masuda

{"title":"Classification of 3D-body Curved Surface Shape of Adult Females in the Extensive Age Group Using Angle Curvatures","authors":"T. Masuda","doi":"10.4188/jte.65.55","DOIUrl":"https://doi.org/10.4188/jte.65.55","url":null,"abstract":"For the purpose of custom-made garment design, the 3D-body curved surface shapes of 1,348 females in an extensive age group were investigated using the angle values of three curvatures (Kc, kc, and Hc) by multivariate analysis. The nine 3D shape types (three types in the 30s and 40s age groups, two types in the 50s age group, and one type of the 60s age group) were categorized by using each sum angle value of the elliptical (+Kc), the hyperbolic (–Kc), the convex (+Hc), and the concave (–Hc) curved shapes in ten areas. The different features of the 3D shape types mainly displayed higher or lower convex elliptical and concave hyperbolic curved shapes in the neck, shoulder, chest, sides of trunk, and arms areas. Age also factored into the 3D shape types, and was particularly notable in the differences between the higher convex elliptical curved shape of the 50s and 60s age groups and the lower convex elliptical curved shape of the 30s and 40s age groups in the abdomen, buttocks, and legs areas. Several 3D-body shape types were extracted in the concrete body forms and angle curvature values and were provided as useful information for numerically developing visual designs in custom-made garments.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83212046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

3D Shape Prediction of a Paper Model of a Brassiere Cup toward Its Design Support 面向设计支撑的胸罩罩杯纸模三维形状预测

Journal of Textile Engineering Pub Date : 2019-06-15 DOI: 10.4188/jte.65.35

H. Wakamatsu, Kotaro Yoshida, E. Morinaga, E. Arai, T. Kubo

引用次数: 1

Mechanical Properties and Contractile Force Mechanism of Shape Memory Alloy Knitted Fabric Actuator 形状记忆合金针织物作动器的力学性能及收缩力机理

Journal of Textile Engineering Pub Date : 2019-06-15 DOI: 10.4188/jte.65.47

Akichika Nakashima, Yusuke Higuchi, Yohei Sato, Lina Wakako, T. Kinari

{"title":"Mechanical Properties and Contractile Force Mechanism of Shape Memory Alloy Knitted Fabric Actuator","authors":"Akichika Nakashima, Yusuke Higuchi, Yohei Sato, Lina Wakako, T. Kinari","doi":"10.4188/jte.65.47","DOIUrl":"https://doi.org/10.4188/jte.65.47","url":null,"abstract":"The purpose of this research is to clarify the contractile force mechanism of a shape memory alloy (SMA) knitted fabric actuator. We knitted SMA yarn with plain stitches. We then determined the limit up to which SMA plain knitted fabric can be uniaxially elongated and thereafter the original dimensions can be recovered through its repeated heating. Moreover, the temperature dependence of SMA plain knitted fabric in the case of contractile force is quantitatively evaluated experimentally by heating it and then measuring its tension after it is extended to a certain length and fixed at both ends. The results show that, in its wale direction, the maximum tension by heating exceeds the tension corresponding to the extension. Furthermore, it is confirmed that theoretical calculations for the tensile properties of the knitted fabric of spun yarn and filament yarn can be applied to plain knitted fabric of SMA yarn. Using this theoretical calculation, and the flexural rigidity measured by KES system, it is clarified the contractile force of the SMA knitted fabric actuator is affected not only by contraction of SMA yarn but also an increase in its flexural rigidity.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78935257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a Simple Molding Method for Continuous Fiber Reinforcement FRP in Shapes with Highly Curved Corners 高弯角形状连续纤维增强FRP的简单成型方法的开发

Journal of Textile Engineering Pub Date : 2019-04-15 DOI: 10.4188/jte.65.19

L. Bao, Kentaro Suzuki, Jian Shi

引用次数: 0

Filaments Motion in a Slit-Type Interlacer: Role of Supplied Air Pressure 狭缝式交织机中丝的运动:供气压力的作用

Journal of Textile Engineering Pub Date : 2019-04-15 DOI: 10.4188/jte.65.25

Ryo Jinno, Y. Iemoto, H. Uematsu, S. Tanoue

{"title":"Filaments Motion in a Slit-Type Interlacer: Role of Supplied Air Pressure","authors":"Ryo Jinno, Y. Iemoto, H. Uematsu, S. Tanoue","doi":"10.4188/jte.65.25","DOIUrl":"https://doi.org/10.4188/jte.65.25","url":null,"abstract":"In order to make clear the mechanism of interlacing process in a slit-type interlacer, the effects of supplied air pressure on filaments motion were studied using a high-speed video camera and particle image velocimetry (PIV). Results obtained are as follows: (1) The cycle time, tangling state time and opening state time were clarified by measuring 20 cycles of interlacing process independently of supplied air pressures. (2) The mean number of tangles and the calculated number of tangles were almost the same at supplied air pressures of 0.2 MPa and 0.3 MPa. Meanwhile, the calculated number of tangles was higher than the mean number of tangles at supplied air pressures of 0.1 MPa, 0.4 MPa and 0.5 MPa. (3) The summed deviation coefficient was effective to extract a characteristic cycle in the interlacing process. (4) The supplied air pressure of 0.3 MPa was the optimum condition to generate tangling parts when the interlacer and the sample yarn were used in this study. In this case, the average distance of filaments was over 0.4 mm and the opening state time was over 0.70 ms. In case that the supplied air pressure is less than 0.3 MPa, the average distance of filaments was under 0.4 mm and the opening state time became longer.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75609735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Difference of Tactile Perception Models by Individuals and Dominant Factor of Fabric Hand for Knitted Fabric for Underwear 内衣针织面料个体触觉感知模型差异及面料手感优势因素

Journal of Textile Engineering Pub Date : 2019-02-15 DOI: 10.4188/JTE.65.1

I. S. M. Hashim, Sumi Nakamura, K. Takemura

{"title":"Difference of Tactile Perception Models by Individuals and Dominant Factor of Fabric Hand for Knitted Fabric for Underwear","authors":"I. S. M. Hashim, Sumi Nakamura, K. Takemura","doi":"10.4188/JTE.65.1","DOIUrl":"https://doi.org/10.4188/JTE.65.1","url":null,"abstract":"In the textile industry, fabric hand is one of the crucial aspects that influence the value of fabric. However, the judgement of fabric hand may vary across subjects. Thus, this study proposes to group the subjects based on their evaluation of fabric hand, and the tactile sensations that are dominantly related to fabric hand are investigated. First, a sensory evaluation of eight knitted fabric samples was carried out using 14 verbal expressions of tactile sensation. These 14 verbal expressions were hierarchically classified into three stages which were called as low-order of tactile sensation, high-order of tactile sensation and lastly, fabric hand. After grouping the subjects by using cluster analysis, a principal component analysis was conducted in each stage of tactile sensation to gather the strong correlations of the verbal expressions. Then, the correlations between principal components of each stage were determined by multiple regression analysis. As a result, the study showed that the subjects could be mainly grouped into two. The former group expressed fabric hand as good when the fabric is soft and moist. On the other hand, the latter group defined good fabric hand when the fabric is silky and smooth.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73433284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study on Hoop Stress Affecting Braided Carbon Fiber Reinforced Plastics Subjected to Internal Pressure 内压作用下编织碳纤维增强塑料环向应力影响的实验研究

Journal of Textile Engineering Pub Date : 2019-02-15 DOI: 10.4188/JTE.65.11

Nanang Endriatno, K. Kawai, Takuru Suehiro, S. Kitayama, J. Sakamoto, T. Kinari

{"title":"Experimental Study on Hoop Stress Affecting Braided Carbon Fiber Reinforced Plastics Subjected to Internal Pressure","authors":"Nanang Endriatno, K. Kawai, Takuru Suehiro, S. Kitayama, J. Sakamoto, T. Kinari","doi":"10.4188/JTE.65.11","DOIUrl":"https://doi.org/10.4188/JTE.65.11","url":null,"abstract":"Braided carbon fiber reinforced plastics (CFRPs) can be employed in the construction of pressurized vessels to increase performance and reduce overall weight. However, owing to the complex braiding structures resulting from the braiding process, an analysis of the elastic modulus is important as it affects the hoop stress on the pressure vessel. In this study, braided preformed CFRP constructed on a steel cylinder subjected to internal pressure was experimentally investigated using a simple approach that involved estimating the elastic modulus and hoop stress. Five types of braided preformed CFRP with different braiding angles and number of applied layers were analyzed. The elastic modulus and hoop stress can be estimated from these measurements of the internal pressure. The differences in the braided structures result in different strain values and affect the elastic modulus. High braiding angles tend to be more stable against high internal pressure, and exhibit small strain differences and high elastic modulus in the hoop direction. Similar results were observed when additional layers were applied. Increasing the braiding angle and the number of layers can increase the average elastic modulus.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86330141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hair Colouring by the Use of Dyestuffs Formed by Oxidation of (+)-Catechin Combined with Photosensitisers Absorbing Visible Light 利用(+)-儿茶素与吸收可见光的光敏剂氧化形成的染料给头发着色

Journal of Textile Engineering Pub Date : 2018-12-15 DOI: 10.4188/JTE.64.145

H. Yasunaga, A. Uchida

引用次数: 0

Assessment of Static Electrical Propensity for Work Clothes Using Human Body Voltage Measuring Methods 用人体电压测量法评价工作服的静电倾向

Journal of Textile Engineering Pub Date : 2018-12-15 DOI: 10.4188/JTE.64.163

Hirokazu Kimura, Ryotaro Yamamoto, A. Sakaguchi

{"title":"Assessment of Static Electrical Propensity for Work Clothes Using Human Body Voltage Measuring Methods","authors":"Hirokazu Kimura, Ryotaro Yamamoto, A. Sakaguchi","doi":"10.4188/JTE.64.163","DOIUrl":"https://doi.org/10.4188/JTE.64.163","url":null,"abstract":"Safety quality on the static electrical propensity of work clothes in Japan is confirmed by electrical resistivity or frictional electric charge obtained from the results of test methods specified by International Electrotechnical Commission standard (IEC) or Japanese Industrial Standard (JIS). In practical use, we consider that the hazard related to static electrical charge is dependent on human body voltage caused by various movement of worker during working hours as well as electrical resistance or electric charge amount of work clothes. We thought up two trial movements for determination of human body voltage: one is taking off movement after performing frictional action between work clothes and inner wear during 20 seconds at speed of 90 times per one second, and the other is standing up from the seat of popular use chair quickly after performing frictional action between the back part of work clothes and the back of a chair during 60 seconds at speed of 90 times per one second. Experimental works were performed by using four types of unprotected commercial work clothes and six types of static protected commercial work clothes. As the experimental results, standing up movements from the seat of chair were recorded higher human body voltages than taking off movement. From the almost all work clothes including static protected work clothes, the human body voltage above 3000 voltage which many human felt static electrical shock were detected by the standing up from the chair quickly after performing frictional action.","PeriodicalId":35429,"journal":{"name":"Journal of Textile Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84524516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0