Hollow Yarn in Friction Spinning. Part II: Yarn Structure and Deformation Under Axial Tension and Lateral Forces

Merati, Ali Akbar; Okamura, Masaaki

doi:10.1177/004051750107100514

Cited by 20 publications

(15 citation statements)

References 2 publications

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“…One of the unique structural features of DREF spun yarns offers high fiber packing density in the core of the yarn and the lower fibre packing density in the periphery of yarn due to differential twist insertion of the DREF spinning process. High bulk and low fiber packing density gives such yarn higher softness [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Yarn Sample Preparation Techniques and Yarn Diameter Measurement for Analysing Cut-Cross Sectional View of Hollow Core Dref Spun Yarns

Chandrasekaran

Senthilkumar

2014

J. Inst. Eng. India Ser. E

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Yarn pore size and its distribution influence the structural, physical, thermal behaviour and moisture content of the fabrics. Analysis of the microscopic view of cutcross sectional of yarn is a way forward to measure the yarn pore size and its distribution. The method of yarn sample preparation is important for capturing the cut cross sectional view of different yarns. Three different yarn sample preparation methods were developed for this purpose. Yarn outer and core diameter measurement using microscopic image help to predict the hollow yarn pore size, packing density and linear density. These three methods used to prepare the yarn for cross sectional microscopic study and comparison study was also made. There is a good correlation found among the selected methods.

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Section: Introductionmentioning

confidence: 99%

Yarn Sample Preparation Techniques and Yarn Diameter Measurement for Analysing Cut-Cross Sectional View of Hollow Core Dref Spun Yarns

Chandrasekaran

Senthilkumar

2014

J. Inst. Eng. India Ser. E

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“…Recently hollow/micro-porous yarn spinning technique and fabric quality thereof have attracted attention to many textile yarn and fabric producers [1][2] and research workers [3][4][5][6][7]. The use of hollow yarn in the fabric is a technique used to increase the bulk of fabrics without increasing weight, thus improving fabric physical properties such as softness, bulkiness and thermo-physiological properties.…”

Section: Introductionmentioning

confidence: 99%

“…There are few studies available which are related to properties of friction spun core hollow yarns [3][4][5][6] and ring spun micro porous hollow yarns by blending method [7]. However, there is dearth of literature on the impact of structurally different prehollow/microporous yarns on yarn tensile and physical properties.…”

Section: Introductionmentioning

confidence: 99%

Impact of Structural Variations on Pre-Hollow/Micro-Porous Yarn's Tensile and Physical Properties

Mukhopadhyay

Ishtiaque

Uttam

2012

Journal of Engineered Fibers and Fabrics

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In the present study impact of structural variations on pre-hollow/micro-porous yarn's tensile and physical properties were investigated in view of their processing and ultimate product quality. The results show that: the core pre-hollow yarns and doubled pre-hollow yarns possessing continuous polyvinyl alcohol (PVA) filaments are better in tensile behavior than blended pre-hollow yarns which contain discrete PVA staple fibers. The doubled pre-hollow yarns were found to have the lowest unevenness, thick places, thin places and total imperfections followed by blended pre-hollow and core pre-hollow yarns, while blended pre-hollow yarns showed lowest number of neps. The core pre-hollow yarns exhibit lowest hairiness followed by blended pre-hollow yarns and doubled pre-hollow yarns. Use of double roving during spinning is beneficial for improving yarn strength, unevenness imperfections and hairiness in all the pre-hollow yarns.

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“…But almost no work has considered the individual, separate contributions of the staple core component and its surrounding sheath component on tensile properties. Merati and Okamura [16,17] reported on the tensile properties and structural parameters of hollow yarns produced on an experimental friction spinning machine with only one active perforated roller.…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties of Copper Core Yarn

Perumalraj¹,

Dasaradan²

2009

Journal of Reinforced Plastics and Composites

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In this investigation the complex copper core spun yarn (Cotton Sheath and Polyester Sheath) of 179, 118, 98, and 84 tex count of copper core yarns were produced by Dref friction spinning machines and the count of 74 and 59 tex of copper core yarns (cotton sheath and polyester sheath) were produced by ring spinning machines with core attachments device for electromagnetic shielding yarn production purpose. The article reports the effects of the process variables on tensile properties of the copper core yarn as well as individual core and sheath components. Various parameters such as Spinning drum speed, the sliver material, core materials, and count of the yarn were changed to investigate how various parameters affects the tenacity of the complex copper core spun yarn.

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Hollow Yarn in Friction Spinning. Part II: Yarn Structure and Deformation Under Axial Tension and Lateral Forces

Cited by 20 publications

References 2 publications

Yarn Sample Preparation Techniques and Yarn Diameter Measurement for Analysing Cut-Cross Sectional View of Hollow Core Dref Spun Yarns

Yarn Sample Preparation Techniques and Yarn Diameter Measurement for Analysing Cut-Cross Sectional View of Hollow Core Dref Spun Yarns

Impact of Structural Variations on Pre-Hollow/Micro-Porous Yarn's Tensile and Physical Properties

Tensile Properties of Copper Core Yarn

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