A Study of Compact Spun Yarns

Cheng, K.P.S.; Yu, Chun‐Yen

doi:10.1177/004051750307300412

Cited by 100 publications

(88 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are different in structure but almost the same in yarn quality (Cheng & Yu, 2003;Stalder, 2002). Condensing zone of the latter type has been considered in this study.…”

Section: Introductionmentioning

confidence: 99%

Mechanical analysis on changing cross-sectional segment of fibre band in condensing zone in compact spinning

Wang

Yang

et al. 2009

Journal of the Textile Institute

View full text Add to dashboard Cite

A mechanical analysis is made on the changing cross-sectional segment of the fibre band in the condensing zone of compact spinning. By analysing the condensing process of fibre band in the condensing zone, a mechanical model for the changing cross section is established in this article. The model further validates the fact that there exist additional twists in this part of fibre band from both theoretical and numerical points of view. Besides, the three major factors, that is, the friction coefficient between fibre band and the lattice, the underpressure and the length of suction, are also analysed, revealing that the larger the three factors are, the larger the additional twists will be.

show abstract

“…They are different in structure but almost the same in yarn quality (Cheng & Yu, 2003;Stalder, 2002). Condensing zone of the latter type has been considered in this study.…”

Section: Introductionmentioning

confidence: 99%

Mechanical analysis on changing cross-sectional segment of fibre band in condensing zone in compact spinning

Wang

Yang

et al. 2009

Journal of the Textile Institute

View full text Add to dashboard Cite

show abstract

“…For example, in the spinning triangle, yarn hairiness would be produced since the head and tail of the border fiber cannot be rolled into the yarn body easily (Liu, Su, & Yu, 2013). Therefore, it has attracted more and more interest by taking appropriate measures to change the spinning triangle geometry and improve the quality of yarn (Cheng, Fu, & Yu, 2004;Cheng & Yu, 2003;.…”

Section: Introductionmentioning

confidence: 99%

“…It is implemented by adding a fiber condensing device on ring spinning frame to reduce the spinning triangle and improves yarn qualities, especially reducing yarn hairiness (Cheng & Yu, 2003;Nikolic, Stjepanovic, Lesjak, & Stritof, 2003). In general, compact spinning system can be divided into pneumatic condensing and non-pneumatic condensing (Liu, Xie, Su, & Mei, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of lattice apron density on yarn qualities in Four-line compact spinning system

Liu

Zhang

2016

The Journal of The Textile Institute

View full text Add to dashboard Cite

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 (32 S ), 9.7tex (60 S ), and 5.8tex (100 S ), 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 high, but the assisted condensing force is low and disorder, which is not beneficial for yarn qualities. Compared to the lattice apron with mesh size 150, the usage of lattice apron with mesh size 120 may be beneficial for the high-count yarn condensing or the yarn condensing under the relatively lower negative pressures. Furthermore, taking the 9.7tex as an example, the trajectory of yarn movement in the condensing zone was given using high-speed camera system OLYMPUS i-speed3. Corresponding airflow velocities along the yarn movement path were presented.

show abstract

“…This results in increased strength, as more fibers contribute to the yarn strength. The utilization degree of fibers can thus be increased [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study between Physical Properties of Compact and Ring Yarn Fabrics Produced from Medium and Coarser Yarn Counts

Abou-Nassif¹

2014

Journal of Textiles

View full text Add to dashboard Cite

In compact spinning, fibers in drawing stage are condensed using air suction, which results in the produced yarns which significantly differ from ring spun yarns in their physical and mechanical properties. This study compares between physical properties of compact and ring yarn fabrics woven from coarser and medium yarn counts. The experimental results were statistically analyzed using ANOVA. The findings of this study revealed that woven fabrics produced from compact spun yarns are superior to those produced from ring spun yarns with respect to breaking strength, breaking elongation, abrasion resistance, tearing strength, and air permeability.

show abstract

A Study of Compact Spun Yarns

Cited by 100 publications

References 0 publications

Mechanical analysis on changing cross-sectional segment of fibre band in condensing zone in compact spinning

Mechanical analysis on changing cross-sectional segment of fibre band in condensing zone in compact spinning

Effects of lattice apron density on yarn qualities in Four-line compact spinning system

A Comparative Study between Physical Properties of Compact and Ring Yarn Fabrics Produced from Medium and Coarser Yarn Counts

Contact Info

Product

Resources

About