The Effect of Spinning Draft on Irregularity and Faults Part II: Experimental Studies

Lamb, Peter R.

doi:10.1080/00405008708631828

Cited by 6 publications

(2 citation statements)

References 10 publications

(7 reference statements)

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“…Obviously, sirofil yarns have a higher CVm value than other composite yarns. Since better evenness would be obtained from drafting of multiple strands than from that of a combined strand, 21,22 both rovings close to each other in the sirofil system could be a reason for the higher irregularity of sirofil spun yarns. Another important factor could be that highest random loss of staple fibers might lead to the worst weight variation along the sirofil yarn lengthwise.…”

Section: Unevenness Comparison Of Different Composite Yarnsmentioning

confidence: 99%

Fiber trapping comparison of embeddable and locatable spinning with sirofil and siro core-spinning with flute pipe air suction

Xia

Wang

et al. 2012

Textile Research Journal

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In this study, we compared fiber trapping of embeddable and locatable spinning (ELS) with that of sirofil and siro core-spinning with flute pipe air suction. Online pictorial analysis showed that the 3rd ELS was free of the visual fiber loss during the 1st ELS, 2nd ELS, sirofil, and siro core-spinning. This indicated the 3rd ELS possessed high ability of trapping staple fibers. Weight loss of different yarns proved that the 3rd ELS had a statistically higher fiber trapping capacity than 1st ELS, sirofil and siro core-spinning. Yarn visual appearance results showed that filaments failed to be entirely buried in the siro core-spun yarn body due to the staple fiber loss and imperfect filament tension adjustment. Poor trapping and filament fasting of staple fibers might be the reasons for more hairy siro core-spun yarn than other composite yarns. Sirofil and siro core-spun yarn had higher value of coefficient of mass variation per unit yarn length and yarn imperfections than the 3rd ELS yarn which might be probably due to their irregular fiber loss during the sirofil and siro core-spinning. The fiber loss would result in a decrease in yarn cross-section fiber utilization; therefore, sirofil, siro core-spun and the 1st ELS yarn had a statistically lower tensile tenacity than the 3rd ELS composite yarn.

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Section: Unevenness Comparison Of Different Composite Yarnsmentioning

confidence: 99%

Fiber trapping comparison of embeddable and locatable spinning with sirofil and siro core-spinning with flute pipe air suction

Xia

Wang

et al. 2012

Textile Research Journal

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show abstract

“…More than three gill box drawings after the second combing did not facilitate better yarn unevenness and imperfections. 18 Similarly, the number of doublings and draft ratios for gill drawing, roving and the ring frame have a significant effect on yarn unevenness. 19,20 Better regularity as well as yarn strength can be achieved by increasing the mean fiber length for wool yarns spun in the long staple worsted system.…”

mentioning

confidence: 99%

Influence of fiber length and comber noil extraction in long staple worsted spinning on eri silk yarn quality

Chattopadhyay

Chakraborty

Chatterjee

2022

Textile Research Journal

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The eri cocoons are open mouthed and as their silk filaments are discontinuous, these can only be used for spun yarn production. In this study, the effect of fiber length and comber noil extractions on yarn quality were evaluated. The significant impact of fiber length as well as first and second comber noil extraction was observed on yarn unevenness, imperfections, tenacity, breaking elongation and hairiness. With the aim of minimizing unevenness, imperfections and hairiness along with maximizing tenacity and breaking elongation of yarn; the fiber length and comber noil were optimized using Minitab 19 software. It was revealed that 150 mm fiber length can be set in the staple cutter during spinning preparatory for all yarn counts; 19% and 7% comber noil extractions are required for first and second combing, respectively, to produce 40 and 60 Nm yarns, whereas for 80 Nm yarn about 1% more noil extraction is needed in both combing processes. Principal component analysis depicted that both two comber noil contribute about 57% and fiber length of 43% on yarn quality. Regression equations from the response surface design of the experiment were derived for different yarn quality characteristics which exhibit a difference between actual and predicted values of below 10%.

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A Wavelet Neural Network applied to Textile Spinning

Wang

Zeng

Aspects of Mathematical Modelling

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The Effect of Spinning Draft on Irregularity and Faults Part II: Experimental Studies

Cited by 6 publications

References 10 publications

Fiber trapping comparison of embeddable and locatable spinning with sirofil and siro core-spinning with flute pipe air suction

Fiber trapping comparison of embeddable and locatable spinning with sirofil and siro core-spinning with flute pipe air suction

Influence of fiber length and comber noil extraction in long staple worsted spinning on eri silk yarn quality

A Wavelet Neural Network applied to Textile Spinning

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