Pub Date : 2018-10-03DOI: 10.1080/00405000.2018.1423882
Magdi El Messiry, Rania El Deeb
Abstract This paper focuses on the fabrication processes of jute reinforced polymer composites (FPC) made with the use of both untreated jute fabric and pultruded jute fabric. The pultruded jute fabric performs were processed and cured separately using polymer with different components blending ratio ‘α’ (resin/solvent ratio). 2-step technique where the composite specimens were prepared using a different combination of polymer blending ratio α1 for the pultruding jute fabric and used blending ratio α2 polymer for the matrix, which have contributed positively to fiber/matrix tensile stress, breaking strain, toughness and Young’s modulus. The best value of α1 and α2 to have composite with high tensile strength and Young’s modulus was 0.6 for both the pultruded matrix and final composite matrix.
{"title":"Investigation of 2-step technique for jute fabric reinforced polymer matrix composite","authors":"Magdi El Messiry, Rania El Deeb","doi":"10.1080/00405000.2018.1423882","DOIUrl":"https://doi.org/10.1080/00405000.2018.1423882","url":null,"abstract":"Abstract This paper focuses on the fabrication processes of jute reinforced polymer composites (FPC) made with the use of both untreated jute fabric and pultruded jute fabric. The pultruded jute fabric performs were processed and cured separately using polymer with different components blending ratio ‘α’ (resin/solvent ratio). 2-step technique where the composite specimens were prepared using a different combination of polymer blending ratio α1 for the pultruding jute fabric and used blending ratio α2 polymer for the matrix, which have contributed positively to fiber/matrix tensile stress, breaking strain, toughness and Young’s modulus. The best value of α1 and α2 to have composite with high tensile strength and Young’s modulus was 0.6 for both the pultruded matrix and final composite matrix.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2018-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2018.1423882","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871844","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 : 2018-02-01DOI: 10.1080/00405000.2017.1335378
Elahe Khodarahmi Borujeni, S. Shaikhzadeh Najar, Mehdi Kamali Dolatabadi
Abstract Silkworm cocoon is a natural composite with laminated structure in which is made of silk fibers conglutinated by sericin. Recently, the identification of silkworm cocoon composite structure as a nonwoven complex structure and its properties are attracted by several researches. In this study, the structure and morphology of reared silkworm cocoon as well as its mechanical properties have been studied. Silkworm cocoon structural features, such as fiber diameter, porosity, fiber length, number of fiber intersection, the number of pores, and fiber orientation were evaluated for outermost and innermost layers in three sections using image processing method. Also the mechanical properties such as tensile strength, initial modulus, and toughness of silkworm cocoon in the three sections of cocoon head, middle, and tail were measured. The structural analysis of silkworm cocoon shows that the innermost layer has finer fibers with a lower density structure compared to the outermost layer. Fiber orientation in cocoon middle section is more than the head and tail sections. Also the results of mechanical properties of silkworm cocoon show that tensile strength, initial modulus, and toughness are significantly different in three sections of cocoon in which the cocoon middle section exhibits a higher tensile strength and initial modulus than the head and tail sections.
{"title":"The study on structural properties and tensile strength of reared silkworm cocoon","authors":"Elahe Khodarahmi Borujeni, S. Shaikhzadeh Najar, Mehdi Kamali Dolatabadi","doi":"10.1080/00405000.2017.1335378","DOIUrl":"https://doi.org/10.1080/00405000.2017.1335378","url":null,"abstract":"Abstract Silkworm cocoon is a natural composite with laminated structure in which is made of silk fibers conglutinated by sericin. Recently, the identification of silkworm cocoon composite structure as a nonwoven complex structure and its properties are attracted by several researches. In this study, the structure and morphology of reared silkworm cocoon as well as its mechanical properties have been studied. Silkworm cocoon structural features, such as fiber diameter, porosity, fiber length, number of fiber intersection, the number of pores, and fiber orientation were evaluated for outermost and innermost layers in three sections using image processing method. Also the mechanical properties such as tensile strength, initial modulus, and toughness of silkworm cocoon in the three sections of cocoon head, middle, and tail were measured. The structural analysis of silkworm cocoon shows that the innermost layer has finer fibers with a lower density structure compared to the outermost layer. Fiber orientation in cocoon middle section is more than the head and tail sections. Also the results of mechanical properties of silkworm cocoon show that tensile strength, initial modulus, and toughness are significantly different in three sections of cocoon in which the cocoon middle section exhibits a higher tensile strength and initial modulus than the head and tail sections.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2017.1335378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871833","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 : 2018-01-02DOI: 10.1080/00405000.2017.1322477
Nilüfer YILDIZ VARAN
Abstract As exerted pressures play a critical role on highly elastic fabrics on performances of pressure garments in burn scar management, they should also protect their physical and mechanical properties after chemical treatments. Samples were treated with chitosan to achieve antimicrobial property for further designs to help rehabilitation. In this study, the physical, mechanical properties and wear performances of chitosan treated highly elastic fabrics in comparison with untreated control samples were investigated. Results showed that a small significant decrease was observed for air permeability, bursting strength and drapeability while a small significant increase was observed for stiffness (CD, MD). The elasticity of the fabrics was protected during 90 days observation with time-dependent fabric growth analysis. The moisture regain of the fabric samples showed a small significant increase. Antimicrobial tests showed that all treated samples have a very good antimicrobial activity.
{"title":"The effects of chitosan antimicrobial treatments on the physical and mechanical properties and wear performances of highly elastic fabrics used for burn scar management","authors":"Nilüfer YILDIZ VARAN","doi":"10.1080/00405000.2017.1322477","DOIUrl":"https://doi.org/10.1080/00405000.2017.1322477","url":null,"abstract":"Abstract As exerted pressures play a critical role on highly elastic fabrics on performances of pressure garments in burn scar management, they should also protect their physical and mechanical properties after chemical treatments. Samples were treated with chitosan to achieve antimicrobial property for further designs to help rehabilitation. In this study, the physical, mechanical properties and wear performances of chitosan treated highly elastic fabrics in comparison with untreated control samples were investigated. Results showed that a small significant decrease was observed for air permeability, bursting strength and drapeability while a small significant increase was observed for stiffness (CD, MD). The elasticity of the fabrics was protected during 90 days observation with time-dependent fabric growth analysis. The moisture regain of the fabric samples showed a small significant increase. Antimicrobial tests showed that all treated samples have a very good antimicrobial activity.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2017.1322477","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871777","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 : 2017-09-02DOI: 10.1080/00405000.2016.1261422
Mehdi Kamali Dolatabadi
Abstract Geometrical and mechanical behaviors of fabric are extremely anisotropic. Exploit of fabric in multiplicity applications is dependent on its behavior in differ directions. Thus, attempts had been made to study the behavior of fabric in off and on axis systematically. For this purpose, authority of a semi-empirical model, based on earlier work, was experimentally investigated. The model consists of a numerical way to estimate yarn path under axial and normal tension simultaneously. A test method to evaluate flattening of yarn was presented in this study. Moreover, to reduce stress concentration at the sample’s corners a modified griper was applied. On the basis of initial data of fabric and flattening behavior of constitutive yarns, the fabric geometry and tensile force–strain (TF–S) curve of a strip fabric in arbitrary direction are capable to estimate using stated model. The variations in density of warp and weft yarns, shear angle, and TF–S curve of a fabric in different directions were measured and are compared with theoretical values. It was found that the stated model is applicable to predict fabric geometry and tensile behavior of a plain weave fabric under stress in arbitrary direction. Experimental results indicated that the strength of fabric at 45 degree was 22.59% higher than the strength of fabric in average of principal directions. On the basis of semi-empirical model, it is anticipated that the maximum strength of presented fabric would be occurred at 60 degree with 27.99% higher than the strength of fabric in average of principal directions.
{"title":"Anisotropy in geometrical and tensile properties of plain weave fabric: verifying a semi-empirical model","authors":"Mehdi Kamali Dolatabadi","doi":"10.1080/00405000.2016.1261422","DOIUrl":"https://doi.org/10.1080/00405000.2016.1261422","url":null,"abstract":"Abstract Geometrical and mechanical behaviors of fabric are extremely anisotropic. Exploit of fabric in multiplicity applications is dependent on its behavior in differ directions. Thus, attempts had been made to study the behavior of fabric in off and on axis systematically. For this purpose, authority of a semi-empirical model, based on earlier work, was experimentally investigated. The model consists of a numerical way to estimate yarn path under axial and normal tension simultaneously. A test method to evaluate flattening of yarn was presented in this study. Moreover, to reduce stress concentration at the sample’s corners a modified griper was applied. On the basis of initial data of fabric and flattening behavior of constitutive yarns, the fabric geometry and tensile force–strain (TF–S) curve of a strip fabric in arbitrary direction are capable to estimate using stated model. The variations in density of warp and weft yarns, shear angle, and TF–S curve of a fabric in different directions were measured and are compared with theoretical values. It was found that the stated model is applicable to predict fabric geometry and tensile behavior of a plain weave fabric under stress in arbitrary direction. Experimental results indicated that the strength of fabric at 45 degree was 22.59% higher than the strength of fabric in average of principal directions. On the basis of semi-empirical model, it is anticipated that the maximum strength of presented fabric would be occurred at 60 degree with 27.99% higher than the strength of fabric in average of principal directions.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2017-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2016.1261422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871771","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 : 2017-04-03DOI: 10.1080/00405000.2016.1172430
Liu Xinjin, Su Xuzhong, Zhang Hong
In the paper, using finite element method (FEM), the effects of lattice apron density on yarn qualities in Four-line compact spinning system were studied by analyzing the numerical simulations of the airflow velocity. Firstly, three different kinds of yarns, 18.2tex (32S), 9.7tex (60S), and 5.8tex (100S), were spun on FA507B spinning frame equipped with lattice aprons of mesh size 150, 120, and 100, respectively. The hairiness, breaking strength, and evenness of spun yarns were tested and comparatively analyzed. Secondly, using FEM, the numerical simulations of the airflow velocity in the condensing zone were presented. The finite element model of condensing zone was constructed according to the physical parameters of the practical system. Then, the simulation of airflow velocities on five straight lines located in the front, middle, and back of condensing zone were given. It is shown that, in the whole condensing zone, for the lattice apron with mesh size 100, the direct transverse condensing force is hi...
{"title":"Effects of lattice apron density on yarn qualities in Four-line compact spinning system","authors":"Liu Xinjin, Su Xuzhong, Zhang Hong","doi":"10.1080/00405000.2016.1172430","DOIUrl":"https://doi.org/10.1080/00405000.2016.1172430","url":null,"abstract":"In the paper, using finite element method (FEM), the effects of lattice apron density on yarn qualities in Four-line compact spinning system were studied by analyzing the numerical simulations of the airflow velocity. Firstly, three different kinds of yarns, 18.2tex (32S), 9.7tex (60S), and 5.8tex (100S), were spun on FA507B spinning frame equipped with lattice aprons of mesh size 150, 120, and 100, respectively. The hairiness, breaking strength, and evenness of spun yarns were tested and comparatively analyzed. Secondly, using FEM, the numerical simulations of the airflow velocity in the condensing zone were presented. The finite element model of condensing zone was constructed according to the physical parameters of the practical system. Then, the simulation of airflow velocities on five straight lines located in the front, middle, and back of condensing zone were given. It is shown that, in the whole condensing zone, for the lattice apron with mesh size 100, the direct transverse condensing force is hi...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2017-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90258074","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 : 2017-04-03DOI: 10.1080/00405000.2016.1173930
Liu Xinjin, Su Xuzhong
In the ring spinning process of staple yarn, spinning triangle is a critical zone, whose geometry influences the mechanical properties of fiber in the spinning triangle directly. In the practical spinning, especially in some modified ring spinning systems, the spinning triangle is often asymmetric, in which the horizontal deviation of the twisting point is existed and lead to an obvious angle between the yarn spinning tension and the vertical axis perpendicular to the nip line. Therefore, in this paper, the fiber tension distributions in this kind of asymmetric spinning triangle were studied using the finite element method. In the direct finite element model, the initial strain of fibers in the two sides of spinning triangle is asymmetric, and corresponding accidental fiber tensions would be produced, which makes the fiber move to the middle of the spinning triangle and lead to inaccurate results. Therefore, in the paper, one new finite element model of the asymmetric spinning triangle with left (right) h...
{"title":"Research on mechanical properties of fibers at asymmetric ring spinning triangle using Finite Element Method","authors":"Liu Xinjin, Su Xuzhong","doi":"10.1080/00405000.2016.1173930","DOIUrl":"https://doi.org/10.1080/00405000.2016.1173930","url":null,"abstract":"In the ring spinning process of staple yarn, spinning triangle is a critical zone, whose geometry influences the mechanical properties of fiber in the spinning triangle directly. In the practical spinning, especially in some modified ring spinning systems, the spinning triangle is often asymmetric, in which the horizontal deviation of the twisting point is existed and lead to an obvious angle between the yarn spinning tension and the vertical axis perpendicular to the nip line. Therefore, in this paper, the fiber tension distributions in this kind of asymmetric spinning triangle were studied using the finite element method. In the direct finite element model, the initial strain of fibers in the two sides of spinning triangle is asymmetric, and corresponding accidental fiber tensions would be produced, which makes the fiber move to the middle of the spinning triangle and lead to inaccurate results. Therefore, in the paper, one new finite element model of the asymmetric spinning triangle with left (right) h...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2017-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2016.1173930","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871761","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 : 2017-04-03DOI: 10.1080/00405000.2016.1171480
Liu Xinjin, Su Xuzhong
Twisting is one of the most important steps in the yarn spinning, which influences the geometry of spinning triangle and determines the properties of spun yarns. Airflow is one of the most important measures on improving yarn spinning. In this paper, a kind of air nozzle with vortex guiding channel was designed and used on the modification of ring spinning system, and the spun yarn qualities was studied by analyzing the airflow field in the nozzle. Firstly, the three-dimensional physical model of nozzle was given using CAD software according to the geometrical size of the practical nozzle model. Then, the numerical simulations of the three-dimensional flow field in the nozzle were given using Fluent software. Finally, two different kinds of yarns 10Ne and 20Ne were spun in the modified ring spinning system with the nozzle installed. The airflow pressure 0.01 Mpa and two different swirling directions, anticlockwise and clockwise, were chosen. The qualities of spun yarns, hairiness, strength, evenness, and ...
{"title":"Research on flow field in a modified ring spinning system with the air nozzle","authors":"Liu Xinjin, Su Xuzhong","doi":"10.1080/00405000.2016.1171480","DOIUrl":"https://doi.org/10.1080/00405000.2016.1171480","url":null,"abstract":"Twisting is one of the most important steps in the yarn spinning, which influences the geometry of spinning triangle and determines the properties of spun yarns. Airflow is one of the most important measures on improving yarn spinning. In this paper, a kind of air nozzle with vortex guiding channel was designed and used on the modification of ring spinning system, and the spun yarn qualities was studied by analyzing the airflow field in the nozzle. Firstly, the three-dimensional physical model of nozzle was given using CAD software according to the geometrical size of the practical nozzle model. Then, the numerical simulations of the three-dimensional flow field in the nozzle were given using Fluent software. Finally, two different kinds of yarns 10Ne and 20Ne were spun in the modified ring spinning system with the nozzle installed. The airflow pressure 0.01 Mpa and two different swirling directions, anticlockwise and clockwise, were chosen. The qualities of spun yarns, hairiness, strength, evenness, and ...","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2017-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85308122","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 : 2017-03-04DOI: 10.1080/00405000.2016.1166804
E. Carrera-Gallissà, X. Capdevila, J. Valldeperas
A search of the scientific literature for the period 1950–2013 retrieved 36 different drape indicators. Despite the large number of indicators currently available, the drape ratio (%DR) continues to be the most widely used, even though it has proved inadequate to explain drape shape. In order to assess their actual performance, the 36 currently existing drape indicators were determined in a total of 37 commercial drapery, woolmaking, shirtmaking and lining woven fabrics spanning a wide range of composition, aerial weight and weave type using a digital Cusick drape meter. A correlation analysis between indicators, and subsequent suppression of duplicity and collinearity, revealed that seven were mutually correlated. A principal component analysis of the results revealed an underlying structure consisting of three common factors which allowed the indicators to be classified into three different groups according to drape intensity (a), severity (b) and shape symmetry and variability (c). Cluster analysis was additionally used to examine the results in graphical form and exposed three clusters coinciding with the three factors of the underlying structure. A criterion for distinguishing fabrics with an identical drape ratio in terms of drape shape based on sequential application of four of the seven initially selected indicators was developed and experimentally validated.
{"title":"Evaluating drape shape in woven fabrics","authors":"E. Carrera-Gallissà, X. Capdevila, J. Valldeperas","doi":"10.1080/00405000.2016.1166804","DOIUrl":"https://doi.org/10.1080/00405000.2016.1166804","url":null,"abstract":"A search of the scientific literature for the period 1950–2013 retrieved 36 different drape indicators. Despite the large number of indicators currently available, the drape ratio (%DR) continues to be the most widely used, even though it has proved inadequate to explain drape shape. In order to assess their actual performance, the 36 currently existing drape indicators were determined in a total of 37 commercial drapery, woolmaking, shirtmaking and lining woven fabrics spanning a wide range of composition, aerial weight and weave type using a digital Cusick drape meter. A correlation analysis between indicators, and subsequent suppression of duplicity and collinearity, revealed that seven were mutually correlated. A principal component analysis of the results revealed an underlying structure consisting of three common factors which allowed the indicators to be classified into three different groups according to drape intensity (a), severity (b) and shape symmetry and variability (c). Cluster analysis was additionally used to examine the results in graphical form and exposed three clusters coinciding with the three factors of the underlying structure. A criterion for distinguishing fabrics with an identical drape ratio in terms of drape shape based on sequential application of four of the seven initially selected indicators was developed and experimentally validated.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2017-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2016.1166804","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871699","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 : 2016-10-02DOI: 10.1080/00405000.2015.1100819
J. Thanikai Vimal
The purpose of the investigation is to model the effect of doubled yarns produced from conventional and compact yarns in three different combinations and weave structures on the air resistance of fabrics. A series of woven fabrics differing only in weave structures and having the common count and fabric sett was produced from three types of doubled yarns, namely compact/compact, conventional/conventional and compact/conventional. The hybrid combination was produced principally to reduce the cost of manufacturing doubled yarns. Essential data for the fabrics such as CFF (crossing over firmness factor), FYF (floating yarn factor), FFF (fabric firmness factor), mass per unit area, thickness and porosity were determined. Air resistance was determined by performing the standard test KES-F8 API. Analysis of the results in respect of fabrics produced from the compact/compact, conventional/conventional and conventional/compact yarns shows a strong correlation between the air resistance, porosity, CFF, FYF, FFF, mass per unit area and thickness (R = conventional/conventional 0.97, compact/compact 0.861, conventional/compact 0.974) and the generated statistical models have given the satisfactory prediction of air resistance. Among the parameters, thickness exerts a strong influence on the air resistance. It is concluded that in order to predict air resistance, a number of parameters are needed and any conclusion which has been drawn using only CFF and FYF should be treated with caution. Also the possibility of cost saving as a result of using hybrid doubled yarn has been pointed out.
{"title":"Regression model for predicting the air resistance of fabric made from doubled yarns and with different weave structures","authors":"J. Thanikai Vimal","doi":"10.1080/00405000.2015.1100819","DOIUrl":"https://doi.org/10.1080/00405000.2015.1100819","url":null,"abstract":"The purpose of the investigation is to model the effect of doubled yarns produced from conventional and compact yarns in three different combinations and weave structures on the air resistance of fabrics. A series of woven fabrics differing only in weave structures and having the common count and fabric sett was produced from three types of doubled yarns, namely compact/compact, conventional/conventional and compact/conventional. The hybrid combination was produced principally to reduce the cost of manufacturing doubled yarns. Essential data for the fabrics such as CFF (crossing over firmness factor), FYF (floating yarn factor), FFF (fabric firmness factor), mass per unit area, thickness and porosity were determined. Air resistance was determined by performing the standard test KES-F8 API. Analysis of the results in respect of fabrics produced from the compact/compact, conventional/conventional and conventional/compact yarns shows a strong correlation between the air resistance, porosity, CFF, FYF, FFF, mass per unit area and thickness (R = conventional/conventional 0.97, compact/compact 0.861, conventional/compact 0.974) and the generated statistical models have given the satisfactory prediction of air resistance. Among the parameters, thickness exerts a strong influence on the air resistance. It is concluded that in order to predict air resistance, a number of parameters are needed and any conclusion which has been drawn using only CFF and FYF should be treated with caution. Also the possibility of cost saving as a result of using hybrid doubled yarn has been pointed out.","PeriodicalId":49978,"journal":{"name":"Journal of the Textile Institute","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2016-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00405000.2015.1100819","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58871619","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 : 2016-06-02DOI: 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":null,"pages":null},"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}
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