Pub Date : 2016-06-02DOI: 10.1080/00405000.2015.1061784
X. Capdevila, E. Carrera-Gallissà
A total of 33 commercial drapery and lining fabrics were used to determine the drape indicators drape ratio and R-factor. The slope of a plot of one indicator against the other was found not to afford complete characterization of drape shape for fabrics of different commercial use. In this work, further six parameters describing the drape, proposed by the authors to discriminate drape shapes were also calculated. Discriminant analysis of the data revealed that a linear combination of various parameters allowed two types of woven fabrics (viz. drapery and linen) to be distinguished. The discriminant function used accurately classified 75.76% of the fabrics studied.
{"title":"Application of discriminant analysis to parameters describing the drape for two types of woven fabrics","authors":"X. Capdevila, E. Carrera-Gallissà","doi":"10.1080/00405000.2015.1061784","DOIUrl":"https://doi.org/10.1080/00405000.2015.1061784","url":null,"abstract":"A total of 33 commercial drapery and lining fabrics were used to determine the drape indicators drape ratio and R-factor. The slope of a plot of one indicator against the other was found not to afford complete characterization of drape shape for fabrics of different commercial use. In this work, further six parameters describing the drape, proposed by the authors to discriminate drape shapes were also calculated. Discriminant analysis of the data revealed that a linear combination of various parameters allowed two types of woven fabrics (viz. drapery and linen) to be distinguished. The discriminant function used accurately classified 75.76% of the fabrics studied.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"107 1","pages":"784 - 790"},"PeriodicalIF":1.7,"publicationDate":"2016-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2015.1061784","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871585","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 : 2016-03-27DOI: 10.1080/00405000.2016.1165383
Zhang Xiaojuan, Xu Bojun, Liu Xinjin
A super draft ring spinning machine was designed to spin high-count cotton yarns. It was equipped with four-line draft system (FLDS) and four aprons. For yarns spun on FLDS, it often occurs that yarn unevenness increased compared with three-line draft system (TLDS). In the paper, by cut-middles method, the fiber distribution in front draft zone of FLDS draft system was studied, and corresponding yarn qualities were analyzed. First, comparison analysis of yarn quality between FLDS and TLDS was presented. Cotton yarns of 9.7 and 7.3 tex were spun by TLDS and FLDS ring spinning machine, respectively. The results shows that for 9.7 tex cotton yarn, slower fibers in yarns spun on FLDS are more than that in yarns spun on TLDS. For FLDS, the friction field at the back of front draft zone is stronger, which improves yarn evenness. However, for 7.3 tex cotton yarn, accelerated point of fibers on FLDS is nearer to nipper bite of front roller than that on TLDS. Thus, evenness of yarns spun on FLDS is better. Then, 4...
{"title":"Research on fiber distribution in front draft zone of super high draft ring spinning based on cut-middles method","authors":"Zhang Xiaojuan, Xu Bojun, Liu Xinjin","doi":"10.1080/00405000.2016.1165383","DOIUrl":"https://doi.org/10.1080/00405000.2016.1165383","url":null,"abstract":"A super draft ring spinning machine was designed to spin high-count cotton yarns. It was equipped with four-line draft system (FLDS) and four aprons. For yarns spun on FLDS, it often occurs that yarn unevenness increased compared with three-line draft system (TLDS). In the paper, by cut-middles method, the fiber distribution in front draft zone of FLDS draft system was studied, and corresponding yarn qualities were analyzed. First, comparison analysis of yarn quality between FLDS and TLDS was presented. Cotton yarns of 9.7 and 7.3 tex were spun by TLDS and FLDS ring spinning machine, respectively. The results shows that for 9.7 tex cotton yarn, slower fibers in yarns spun on FLDS are more than that in yarns spun on TLDS. For FLDS, the friction field at the back of front draft zone is stronger, which improves yarn evenness. However, for 7.3 tex cotton yarn, accelerated point of fibers on FLDS is nearer to nipper bite of front roller than that on TLDS. Thus, evenness of yarns spun on FLDS is better. Then, 4...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"108 1","pages":"271-278"},"PeriodicalIF":1.7,"publicationDate":"2016-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2016.1165383","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43359947","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 : 2016-02-01DOI: 10.1080/00405000.2015.1020671
Liu Xinjin, Su Xuzhong
Spinning triangle is a critical zone in the ring spinning process of staple yarn, whose geometry influences the fiber tension distribution in the spinning triangle directly and determines the spun yarn qualities. In ring spinning, the spinning triangle is often asymmetric due to the inclination angle of the spinning tension or the migration of the axis fiber at the front roller nip. Therefore, in this paper, the fiber tension distributions in the asymmetric spinning triangle due to the migration of the axis fiber at the front roller nip were studied using the finite element method (FEM). In the direct finite-element model, the initial strain of the axis fiber is set as zero, and the accidental fiber tensions would be produced due to the asymmetric distributions of the initial strain on fibers in the two sides of the spinning triangle. Then, an effective finite-element model of the asymmetric spinning triangle with right (left) axis fiber migration for calculating the fiber tension is built by composing an...
{"title":"Research on fiber tension at asymmetric spinning triangle using the finite-element method","authors":"Liu Xinjin, Su Xuzhong","doi":"10.1080/00405000.2015.1020671","DOIUrl":"https://doi.org/10.1080/00405000.2015.1020671","url":null,"abstract":"Spinning triangle is a critical zone in the ring spinning process of staple yarn, whose geometry influences the fiber tension distribution in the spinning triangle directly and determines the spun yarn qualities. In ring spinning, the spinning triangle is often asymmetric due to the inclination angle of the spinning tension or the migration of the axis fiber at the front roller nip. Therefore, in this paper, the fiber tension distributions in the asymmetric spinning triangle due to the migration of the axis fiber at the front roller nip were studied using the finite element method (FEM). In the direct finite-element model, the initial strain of the axis fiber is set as zero, and the accidental fiber tensions would be produced due to the asymmetric distributions of the initial strain on fibers in the two sides of the spinning triangle. Then, an effective finite-element model of the asymmetric spinning triangle with right (left) axis fiber migration for calculating the fiber tension is built by composing an...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"107 1","pages":"200-207"},"PeriodicalIF":1.7,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2015.1020671","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871032","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 : 2015-10-01DOI: 10.4103/2008-322X.176900
Khichar Purnaram Shubhakaran
{"title":"Vitreous Haemorrhage in Children.","authors":"Khichar Purnaram Shubhakaran","doi":"10.4103/2008-322X.176900","DOIUrl":"10.4103/2008-322X.176900","url":null,"abstract":"","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"67 1","pages":"505"},"PeriodicalIF":2.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4795408/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80899698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-08-03DOI: 10.1080/00405000.2014.951247
S. Agnes Mary, V. Giri Dev
Synthetic polymeric membranes are used for biomedical applications due to their remarkable structural, mechanical, and biocompatible behavior. Polycaprolactone (PCL) is a biopolymer widely used for tissue engineering applications, but the major limitation of PCL polymer is that it is hydrophobic in nature. The major focus of the work is to study the degradation and wettability behavior of aloe vera (AV)-incorporated elctrospun matrices. The AV-incorporated matrices degraded at a faster rate compared to PCL matrices. The hydrophilicity of the mat increased on blending the polymer with AV. Fibroblasts cells cultured on the PCL-AV showed rapid proliferation compared to that of pristine PCL mat.
{"title":"Electrospun herbal nanofibrous wound dressings for skin tissue engineering","authors":"S. Agnes Mary, V. Giri Dev","doi":"10.1080/00405000.2014.951247","DOIUrl":"https://doi.org/10.1080/00405000.2014.951247","url":null,"abstract":"Synthetic polymeric membranes are used for biomedical applications due to their remarkable structural, mechanical, and biocompatible behavior. Polycaprolactone (PCL) is a biopolymer widely used for tissue engineering applications, but the major limitation of PCL polymer is that it is hydrophobic in nature. The major focus of the work is to study the degradation and wettability behavior of aloe vera (AV)-incorporated elctrospun matrices. The AV-incorporated matrices degraded at a faster rate compared to PCL matrices. The hydrophilicity of the mat increased on blending the polymer with AV. Fibroblasts cells cultured on the PCL-AV showed rapid proliferation compared to that of pristine PCL mat.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"106 1","pages":"886 - 895"},"PeriodicalIF":1.7,"publicationDate":"2015-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2014.951247","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871015","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 : 2015-02-03DOI: 10.1080/00405000.2014.925198
Liu Xinjin, Liu Wenlong, Zhang Hong, Su Xuzhong
Compact spinning is one of the most important improvements of traditional ring spinning, which is implemented by adding a fiber condensing device to condense the fiber bundle and decrease the spinning triangle. Pneumatic compact spinning is the most widely used compact spinning method at present. Compact spinning with perforated drum and compact spinning with lattice apron are the two main kinds of pneumatic compact spinning. Therefore, in this paper, comparison analysis of yarn quality between compact spinning with perforated drum and compact spinning with lattice apron is presented. First, 9.7 tex cotton-combed yarn is spun in three different kinds of pneumatic compact spinning systems, including two kinds of compact spinning with perforated drum: Rieter’s COM4 and complete condensing spinning system (CCSS), and one lattice apron compact spinning system: Toyota’s four-line compact spinning. The test results of yarn qualities show that comparing with other two kinds of compact spinning systems, the yarn ...
{"title":"Research on pneumatic compact spun yarn quality","authors":"Liu Xinjin, Liu Wenlong, Zhang Hong, Su Xuzhong","doi":"10.1080/00405000.2014.925198","DOIUrl":"https://doi.org/10.1080/00405000.2014.925198","url":null,"abstract":"Compact spinning is one of the most important improvements of traditional ring spinning, which is implemented by adding a fiber condensing device to condense the fiber bundle and decrease the spinning triangle. Pneumatic compact spinning is the most widely used compact spinning method at present. Compact spinning with perforated drum and compact spinning with lattice apron are the two main kinds of pneumatic compact spinning. Therefore, in this paper, comparison analysis of yarn quality between compact spinning with perforated drum and compact spinning with lattice apron is presented. First, 9.7 tex cotton-combed yarn is spun in three different kinds of pneumatic compact spinning systems, including two kinds of compact spinning with perforated drum: Rieter’s COM4 and complete condensing spinning system (CCSS), and one lattice apron compact spinning system: Toyota’s four-line compact spinning. The test results of yarn qualities show that comparing with other two kinds of compact spinning systems, the yarn ...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"106 1","pages":"431-442"},"PeriodicalIF":1.7,"publicationDate":"2015-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2014.925198","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871005","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 : 2014-09-05DOI: 10.1080/00405000.2014.886367
Liu Xinjin, Zhang Hong, Su Xuzhong
Section-color yarn is a kind of fancy yarn, which has discontinuous color changing on yarn axial direction and meets the needs of the market. Therefore, it is of high added value. In the section-color yarn spinning, one white roving is feeding into the back roller continuously, and one color roving is feeding into the middle roller discontinuously, and corresponding discontinuous color change on yarn axial direction can be produced. Compared to the common ring spun yarn, the evenness of section-color yarn is worsening seriously due to its spinning mechanism. Therefore, in this paper, the evenness of section-color yarn is analyzed. It is shown that the feeding deviation of color roving is the main possible reason for the worsening evenness of section-color yarn. Then, the corresponding measure for improving section-color yarn evenness is taken by modifying the feeding time of the back roller, and the corresponding modified spun yarn evenness is measured. It is shown that the section-color yarn evenness can...
{"title":"Research on evenness of section-color yarn","authors":"Liu Xinjin, Zhang Hong, Su Xuzhong","doi":"10.1080/00405000.2014.886367","DOIUrl":"https://doi.org/10.1080/00405000.2014.886367","url":null,"abstract":"Section-color yarn is a kind of fancy yarn, which has discontinuous color changing on yarn axial direction and meets the needs of the market. Therefore, it is of high added value. In the section-color yarn spinning, one white roving is feeding into the back roller continuously, and one color roving is feeding into the middle roller discontinuously, and corresponding discontinuous color change on yarn axial direction can be produced. Compared to the common ring spun yarn, the evenness of section-color yarn is worsening seriously due to its spinning mechanism. Therefore, in this paper, the evenness of section-color yarn is analyzed. It is shown that the feeding deviation of color roving is the main possible reason for the worsening evenness of section-color yarn. Then, the corresponding measure for improving section-color yarn evenness is taken by modifying the feeding time of the back roller, and the corresponding modified spun yarn evenness is measured. It is shown that the section-color yarn evenness can...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"105 1","pages":"1272-1278"},"PeriodicalIF":1.7,"publicationDate":"2014-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2014.886367","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871448","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 : 2014-03-06DOI: 10.1080/00405000.2013.825998
Liu Xinjin, Su Xuzhong
Spinning triangle is a critical region in the spinning process of staple yarn, the geometric and mechanical performances of which plays an important role in determining the physical performance of spun yarns. Taking appropriate measures to influence the spinning triangle geometry and improve the qualities of yarn has greatly attracted interest of many researchers recently. In these modified ring spinning systems, the raised parts at spinning triangle are often existed, i.e. the fibers in the spinning triangle are not on the same plane, but a part of fibers is squeezed into the middle part of spinning triangle by the heavy twist. Therefore, in this paper, a new theoretical model of fiber tension distribution in the spinning triangle is proposed by considering the raised parts at spinning triangle based on the principle of minimum potential energy. The relationships between the fiber tension and the spinning triangle shapes are presented. Then, a theoretical model of the residual torque within a yarn due to...
{"title":"Theoretical study of spinning triangle with raised part","authors":"Liu Xinjin, Su Xuzhong","doi":"10.1080/00405000.2013.825998","DOIUrl":"https://doi.org/10.1080/00405000.2013.825998","url":null,"abstract":"Spinning triangle is a critical region in the spinning process of staple yarn, the geometric and mechanical performances of which plays an important role in determining the physical performance of spun yarns. Taking appropriate measures to influence the spinning triangle geometry and improve the qualities of yarn has greatly attracted interest of many researchers recently. In these modified ring spinning systems, the raised parts at spinning triangle are often existed, i.e. the fibers in the spinning triangle are not on the same plane, but a part of fibers is squeezed into the middle part of spinning triangle by the heavy twist. Therefore, in this paper, a new theoretical model of fiber tension distribution in the spinning triangle is proposed by considering the raised parts at spinning triangle based on the principle of minimum potential energy. The relationships between the fiber tension and the spinning triangle shapes are presented. Then, a theoretical model of the residual torque within a yarn due to...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"105 1","pages":"483-490"},"PeriodicalIF":1.7,"publicationDate":"2014-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2013.825998","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871434","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 : 2013-10-16DOI: 10.1080/00405000.2013.790127
Sarmad Aslam, P. Lamb, Xungai Wang
Rubbing of the fibrous strand after drafting, but before twist insertion improves the incorporation of surface fibres. The method delivers the benefits of a small spinning triangle like compact spinning and improved fibre trapping like siro and solo spinning. The yarns produced are less hairy and more resistant to degradation in downstream processing. This can improve the weavability of the yarns, reduce the sizing costs and increase service life of the fabrics by making them more resistant to wear and pilling.
{"title":"Improved incorporation of fibres for more abrasion resistant yarns","authors":"Sarmad Aslam, P. Lamb, Xungai Wang","doi":"10.1080/00405000.2013.790127","DOIUrl":"https://doi.org/10.1080/00405000.2013.790127","url":null,"abstract":"Rubbing of the fibrous strand after drafting, but before twist insertion improves the incorporation of surface fibres. The method delivers the benefits of a small spinning triangle like compact spinning and improved fibre trapping like siro and solo spinning. The yarns produced are less hairy and more resistant to degradation in downstream processing. This can improve the weavability of the yarns, reduce the sizing costs and increase service life of the fabrics by making them more resistant to wear and pilling.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"104 1","pages":"1221 - 1229"},"PeriodicalIF":1.7,"publicationDate":"2013-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2013.790127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871244","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 : 2013-10-16DOI: 10.1080/00405000.2013.790581
Yan Liu, Jing Lu, Jinlian Hu, Aggie Chung
The shape memory polyurethane (SMPU) fabrics were knitted with different SMPU fiber contents for the investigation of its bagging behaviour in this paper. The bagging deformation and recovery of these SMPU-knitted fabrics were determined at different temperatures to evaluate its temperature sensitivity. Our experimental results show that the bagging behavior of the SMPU-knitted fabrics is highly correlated with the amount of SMPU fibers knitted inside the SMPU fabrics. The switching temperature of the SMPU-knitted fabrics is found to be above the phase transfer temperature of SMPU. A comparison between Lycra and SMPU-knitted fabrics is also conducted to validate the shape memory bagging behavior of SMPU-knitted fabrics.
{"title":"Study on the bagging behavior of knitted fabrics by shape memory polyurethane fiber","authors":"Yan Liu, Jing Lu, Jinlian Hu, Aggie Chung","doi":"10.1080/00405000.2013.790581","DOIUrl":"https://doi.org/10.1080/00405000.2013.790581","url":null,"abstract":"The shape memory polyurethane (SMPU) fabrics were knitted with different SMPU fiber contents for the investigation of its bagging behaviour in this paper. The bagging deformation and recovery of these SMPU-knitted fabrics were determined at different temperatures to evaluate its temperature sensitivity. Our experimental results show that the bagging behavior of the SMPU-knitted fabrics is highly correlated with the amount of SMPU fibers knitted inside the SMPU fabrics. The switching temperature of the SMPU-knitted fabrics is found to be above the phase transfer temperature of SMPU. A comparison between Lycra and SMPU-knitted fabrics is also conducted to validate the shape memory bagging behavior of SMPU-knitted fabrics.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":"104 1","pages":"1230 - 1236"},"PeriodicalIF":1.7,"publicationDate":"2013-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2013.790581","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871253","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}
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