Structure and Performance of Elastic Core-Spun Yarn

Su, Ching‐Iuan; Maa, Meei-Chyi; Yang, Hsiao-Ying

doi:10.1177/004051750407400709

Cited by 81 publications

(63 citation statements)

References 7 publications

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“…This problem could be reduced to a large extent by improved control of the relative movement between the roving and the filament, e.g. by using commercial core-yarn spinning attachments (Bbaarslan & Celik, 2001;Kakvan et al, 2007;König, 2002;Su et al, 2004). The most common commercial design of a filament positioning device is a grooved roller frictionally driven on the top front drafting roller.…”

Section: Conventional Roving Feedingmentioning

confidence: 99%

“…The results were expressed in percentage of uncovered area on the yarn. Su, Maa, and Yang (2004) studied elastane core-yarn coverage by sectioning the yarn and examining the radial position of the core. The most important spinning conditions influencing the yarn coverage and resistance to strip-back are the filament feeding tension and the filament/roving feeding configuration in the yarn formation zone (Balasubramanian * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

“…The most important spinning conditions influencing the yarn coverage and resistance to strip-back are the filament feeding tension and the filament/roving feeding configuration in the yarn formation zone (Balasubramanian * Corresponding author. Email: menghe.miao@csiro.au & Bhatnagar, 1970;Kakvan, Shaikhzadeh Najar, & Ghazi Saidi, 2007;König, 2002;Miao, How, & Ho, 1996;Su et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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High-speed video graphic study of filament-core yarn spinning

Miao¹,

Barnes²,

Vuckovic³

2010

Journal of the Textile Institute

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One of the challenges in spinning fine-count core yarns is to achieve a perfect coverage of the core, especially when the filament core comprises a large proportion of the yarn. Any uncovered parts of the core will appear on the yarn surface as periodical defects, known as the barber-pole effect. The main tool available for spinners to improve yarn coverage (i.e. reduction of barber-pole effect) is optimising the relative roving and filament feeding configuration at the entrance to the yarn-forming zone. Using high-speed video photography, we investigated the formation of the barber-pole effect for several feeding configurations and the use of a false-twisting device. Core-yarn coverage could be improved by applying false twist in the yarn-formation zone. The direction of the false twist relative to the final twist imparted by the ring spindle was found to be critical to the improvement of the resultant core-yarn coverage. The coverage of core yarns produced in the trials was evaluated using an objective method based on a fast Fourier transform (FFT) algorithm. The objective assessment method is also described.

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Section: Conventional Roving Feedingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-speed video graphic study of filament-core yarn spinning

Miao¹,

Barnes²,

Vuckovic³

2010

Journal of the Textile Institute

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“…In core spun yarns, there is an elastomeric filament in the core and around it staple fibers are wrapped. Consequently, the resultant fabric has all the characteristics of the predominant staple fiber together with the advantages of stretch and recovery (Su, Maa, & Yang, 2004).…”

Section: Introductionmentioning

confidence: 99%

Comparison of compression properties of stretchable knitted fabrics and bi-stretch woven fabrics for compression garments

Maqsood

2016

The Journal of The Textile Institute

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Stretchable fabrics have diverse applications ranging from casual apparel to performance sportswear and compression therapy. Compression therapy is the universally accepted treatment for the management of hypertrophic scarring after severe burns. Mostly stretchable knitted fabrics are used in compression therapy; but in the recent past, some studies have also been found on bi-stretch woven fabrics being used as compression garments as they also have been found quite effective in the treatment of edema. Therefore, the objective of the present study is to compare the compression properties of stretchable knitted and bi-stretch woven fabrics for compression garments. For this purpose, four woven structures and four knitted structures were produced having same areal density and their compression, comfort and mechanical properties were compared before and after 5, 10 and 15 washes. The four knitted structures used were single jersey, single locaste, plain pique and honeycomb, whereas the four woven structures produced were 1/1 plain, 2/1 twill, 3/1 twill and 4/1 twill. The compression properties of the produced samples were tested by using kikuhime pressure sensor and it was found that bi-stretch woven fabrics possessed better compression properties before and after washes and retain their durability after repeated use, whereas knitted stretchable fabrics lost their compression ability after repeated use and the required sub-garment pressure of the knitted structures after 15 washes was almost half that of woven bi-stretch fabrics.

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“…Babaarslan [9] and Dang et al [10] produced an elastic core spun yarn by using an elastic filament in core. Su et al [11], investigated the structure and the performance of the elastic core spun yarns. They confirmed that the feeding angle and draft ratio influence the filament position depending on the material used.…”

Section: Introductionmentioning

confidence: 99%

Tension dynamics of the fibers in a triangular plane flow of bundle

Huh

Kim

2008

Fibers Polym

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The ring spinning method is broadly used for manufacturing various forms of yarns in various application fields in thanks of the outstanding yarn characteristics and the well established processing technology. However, applying the ring spinning for manufacturing functional yarn, for example, the core-spun yarn, often raises serious yarn quality problems. Especially, surface defects make it difficult to extend the technology to various end-purposes. Dynamic state of the tension of fibers in the spinning triangle that is considered as a triangular plane flow field plays an important role in causing the defects. In this study, a theoretical model describing the tension behavior of the fibers in the triangular plane flow field was derived and the availability of the model was tested experimentally. Results showed that the steady-state experiments brought good corresponding results with those from the theory, which identifies the effectiveness of the theoretical model. The tension dynamics of the fibers in spinning triangle could be expressed as a 1st order system, while the spinning triangle length and the process velocity could majorly affect the tension dynamic characteristics.

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Structure and Performance of Elastic Core-Spun Yarn

Cited by 81 publications

References 7 publications

High-speed video graphic study of filament-core yarn spinning

High-speed video graphic study of filament-core yarn spinning

Comparison of compression properties of stretchable knitted fabrics and bi-stretch woven fabrics for compression garments

Tension dynamics of the fibers in a triangular plane flow of bundle

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