Method of Producing a Polyester/Viscose Core-Spun Yarn Containing Spandex Using a Modified Ring Spinning Frame

Core yarns are known as multi-component yarns in which one component, the core material, stays nearly at the center of the yarn while the others cover it. Stretch knitted or woven fabrics can be made from core yarns in which the core is an elastomeric filament such as Dorlastan®, Lycra®, Glospan®, etc., and the covering is made from staple fibers. Elastomeric core-spun yarns are usually made on cotton, worsted, or woolen spinning systems. In this study, we briefly describe a method of producing a polyester/viscose covered Lycra core yarn on a modified short-staple ring spinning frame. We also examine the polyester/viscose staple yarn and the polyester/viscose core-spun yarns produced on the modified system. The experiment and test results show that core positioning has a direct effect on the structure, properties, and performance of these core-spun yarns. © 2001, SAGE Publications. All rights reserved

Polyester/viscose core-spun yarn properties and core positioning

Core-spun yarn structure, properties, performance and protection of the core during and after spinning (for subsequent processing) mainly depend on the position of the core in the yarn. For high performance core yarn spinning and yarn quality, it is required that the core should be positioned in the yarn axis and protected by the twist effect during spinning. This study analyses the core feeding design and its effects on the core covering while spinning an elastomeric yarn. This paper also presents the test results of polyester/viscose core-spun yarns containing spandex (Lycra) as a core material, produced by the different core positioning as opposed to the roving on the modified ring spinning frame. The experiment and test results show that the core covering has a direct effect on the structure, properties and performance of the core-spun yarns

A study on usage of chenille yarn in denim fabric production [Şönil Ipliklerin Denim KumaŞ Üretiminde Kullanilabilirligi Üzerine Bir ÇaliŞma]

Producers benefit from various applications to increase the usage of denim for the winter seasons. However, the current applications have negative effects on clothing comfort. In this study, availability of chenille yarn, which is a type of fancy yarn for denim industry, has been examined by improving aforementioned clothing comfort. We investigated the differences between breaking strength, breaking elongation, tear strength and abrasion resistance of chenille denim and standard denim which have the same values of mass per unit area. Consequently, in contrast to earlier findings that chenille yarns have lower abrasion resistance, this research explores unanticipated findings. Furthermore, acceptable values in point of tear strength, breaking strength and elongation were obtained of the chenille denim

An investigation on the properties of polyester textured yarns produced with different fiber cross-sectional shapes

In this study, the effects of different fiber cross-sectional shapes and yarn linear density values on Partially Oriented Yarn (POY) and textured yarn characteristics have been examined. In experiment, five different cross-sectional shapes, namely round, trilobal, tetra, hexsa and octolobal and two different linear densities have been used and tenacity-elongation, crimp and shrinkage tests have been applied to the yarns. As a result, the round and octolobal cross-sectional shapes lead to yarn formation with high tenacity and breaking elongation, on the other hand trilobal and hexsa cause low tenacity and breaking elongation. The round cross-section has provided yarn formation with high crimp and low shrinkage, the hexsa and tetra cross-sectional shapes have caused lower crimp and high shrinkage. It was also observed that the increase in the linear density has caused a decrease in yarn tenacity, however this has increased the crim and shrinka e behaviours of the yarns. © 2018 Inst. Nat. Cercetare-Dezvoltare Text. Pielarie. All rights reserved

A comparative strength analysis of denim fabrics made from core-spun yarns containing textured microfilaments

Denim fabric is one of the most popular casual wear fabrics worldwide. The performance characteristics of denim fabrics have been improved by using functional fibers and elastane to make them comfortable to wear. Elastane fibers with high elasticity are used extensively in denim fabric production. Elastane fibers are generally used as the core part of the core-spun yarns as weft yarns. Besides elastane fibers; polyester and polyester derivatives are commonly used. This study examines the effects of filament fineness and yarn count on denim fabric performance. Textured polyester filaments with medium, fine and micro linear densities were used as the core part of the core-spun yarn and cotton fiber was used as sheath material. Yarn samples manufactured with the same production parameters at different yarn count were used as weft yarns of denim fabrics. Denim fabrics were produced with the same fabric cover factor to eliminate yarn count difference effects. Tensile, static tearing and dynamic tearing properties of denim fabrics were determined. To evaluate the effects of core part, 100 % cotton denim fabric was manufactured and tested. Statistical analysis was performed to analyze the significance of filament fineness and yarn count ratio. Results showed that there was a significant effect of filament fineness on tensile, static tearing and dynamic tearing properties of denim fabrics. In addition, it was found that yarn count had no significance effect on static tearing properties of denim fabrics. © 2017, Association Nonwoven Fabrics Industry. All rights reserved.MMF2013D13Thanks to Korteks, Karacasu and BOSSA companies for their contribution for this study. This research has been granted by ?ukurova University (Scientific Research Project Name: Research on Staple Covered Microfilament Core-Spun Yarns and Woven Fabric Properties From These Yarns, Project Number: MMF2013D13)

An experimental study on the effect of pile length on the abrasion resistance of chenille fabric

In this experimental study, the effects of pile length on abrasion resistance of chenille fabrics were investigated. In order to monitor the effect of pile length, we produced chenille yarn samples with different pile lengths of 0.7, 0.8, 1, 1.2 mm and wove them into upholstery fabric. Then, the fabric samples were subjected to the Martindale abrasion test for 20 000 rubbing motions. The specimens were also examined using a micro-projection device and data were evaluated using statistical methods. The results indicate that pile length is certainly an effective factor for the mass loss of chenille yarns. The mass loss rate (%) tends to increase as pile length increases. The lowest total mass loss rate (%) clearly occurred for the samples with 0.7 mm pile length as shortest. The removed pile fibers are not only pulled out from between lock yarns but are also broken. © The Textile Institute

Sound absorption properties of spunmelt multilayer nonwovens

Fiber Society 2016 Spring Conference: Textile Innovations - Opportunities and Challenges --25 May 2016 through 27 May 2016 -- --The aim of this research is to determine sound absorption performance of spunmelt multilayer nonwovens. Nonwoven samples in 7 different fabric weights with two different fiber cross-section shapes of round and trilobal, were tested at impedance tube and sound absorbtion coefficients obtained. It has been observed the effect of fiber cross-section shapes and fabric weight on sound absorbtion properties of spunmelt multilayer nonwoven fabrics

An analysis of friction coefficient on nonwoven fabrics by using two different methods

AATCC;INDA;TAPPI;The Fiber Society2010 Spring Conference of the Fiber Society --12 May 2010 through 14 May 2010 -- Bursa --Friction force that can be defined as the force resisting to the movement between two surfaces contacting with each other which plays an important role in textile industry. During usage, the fabrics continue to friction against the textile or other surfaces; because of this problem fabric surface structure deteriorates. Therefore, most scientists have designed different measurement devices in order to estimate surface properties and friction of fabric before and after usage

Properties of POY and textured yarn with different cross-sectional shapes

Texma.org;Tissa Textiles2012 Spring Conference of the Fiber Society --23 May 2012 through 25 May 2012 -- St. Gallen --[No abstract available

A study of abrasion and frictional behaviour of nonwoven interlining produced with different coating methods

Interlinings are produced recently not only natural and synthetics fibers but also fiber sheet form in nonwoven production methods. During usage, the fabric wears out and because of this problem fabric surface structure deteriorates. As a result of, investigation of fabrics surface and frictional properties has been important before usage of garments. For this reason, a patented laboratory instrument was designed which is based on horizontal working principle of accessing friction coefficient of fibrous textile surfaces. The tested materials were nonwoven interlining materials produced by spunbond methods. Abrasion resistance of paste dot-CoPES nonwoven interlining material is lower than others because of softness handle. On the contrary, friction coefficients have been obtained higher values. © 2011 The Korean Fiber Society and Springer Netherlands