Dependence of Hook Removal at Drawing on Some Drafting Parameters

Ghosh, Gobinda; Bhaduri, Swayamdipta

doi:10.1177/004051756203201013

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…The prediction accuracy of sliver irregularity is approximately enhanced by 40%, which is in accordance with the fact that the fiber assembly will deteriorate the sliver evenness in the actual spinning process. 11,14,24 Therefore, it can be drawn from the results that the simulation considering the fiber separation degree is more suitable to describe the cotton FCS and predict the sliver irregularity.…”

Section: Resultsmentioning

confidence: 99%

“…Actually, there were some hooked fibers in the fibrous-flux (sliver, roving, and yarn); for instance, in the card sliver, more than 70% of fibers were hooked. 4,15,[21][22][23][24][25] Thereby, Yang et al 14 introduced fiber straightness into the simulation of the fiber arrangement in the sliver based on the model with straight fibers 6,7 In their models, the straightness of every fiber was assumed to be identical. However, the straightness of each fiber was different, and the straightness of about 30% fibers was lower than 0.5 in the practical sliver.…”

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confidence: 99%

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Simulation of fiber configuration in the sliver with the straightness and separation degree

Sun,

Wang,

Liu

et al. 2023

Textile Research Journal

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The fiber straightness and separation degree have the important influences on sliver properties. In this work, an innovative model of the fiber configuration considering straightness was presented and optimized by taking the fiber separation degree into account. The new developed model could simulate fiber assemblies and all kinds of separated fibers, including hooked fibers and straight fibers. Furthermore, some thin and thick segments were presented in the optimized simulated sliver with consideration of the fiber separation degree, and the simulated sliver irregularities were close to the actual ones. The relative errors between tested sliver irregularities and simulated ones were reduced from around 80% to less than 30%. Besides, the influence of each fiber parameter on the sliver irregularity could be drawn from the novel model of fiber configuration in the sliver, which verified the necessity of the applications of the straightness and separation degree. Therefore, it could be concluded that the introduction of the fiber straightness and the consideration of the fiber separation degree made more accurate and reasonable simulation of the fiber configuration in the sliver. Moreover, the straightening process of the hooked fibers and the random combination between thick fragments and thin fragments during the drawing simulation could be realized based on this model in the future.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Simulation of fiber configuration in the sliver with the straightness and separation degree

Sun,

Wang,

Liu

et al. 2023

Textile Research Journal

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“…4D brings technologies that support the demands of the construction of large-scale and complex projects like high compartment, over-passes, high-streets, sub-ways, academic campus, hospitals, complex buildings, duplex housing, court-houses etc. Actually, 4D CAD adjoins a new dimension in 3D CAD or solid modeling that connects a new fourth dimension of Time in 3D Space of CAD solid modeling on computer [9]. 4D CAD is compatible with Mac OS, Mac OS X and Windows.…”

Section: D Cadmentioning

confidence: 99%

A Comparative Study on Different Dimensions of CAD

Islam¹

2018

TTEFT

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“…Practical techniques have now been developed to characterize fiber configuration in slivers and rovings in terms of fiber hooks [ 14,15] and fiber parallelization [ 11,19] . These techniques were applied in studies which showed that carding variables and drafting direction influenced the level of fiber hooks which, in turn, had an appreciable effect on end breakage but a small effect on yarn properties [8,9,16,18) . Other studies showed that roving processing variables had a significant effect on fiber parallelization in roving and on end breakage in spinning [20] and that.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Drawing-Frame Variables on Cotton Fiber Hooks and Parallelization and Processing Performance

Simpson

Sands

Fiori

1970

Textile Research Journal

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A study was made of the effect of the drawing frame variables, sliver weight, total draft and doublings, draft distribution, back roll setting and weighting, and topbottom second roll spacing on fiber parallelization, fiber hooks, and processing performance. Sliver weight had a significant effect on fiber hooks, fiber parallelization, and processing performance, whereas the other processing variables had little practical effect, even though the effects observed were in many instances statistically significant. Fiber hooks increased and fiber parallelization decreased as the sliver weight fed to drawing increased. This led to an increase in spinning end breakage.An increase in draft and doublings increased fiber parallelization, but decreased sliver uniformity. The increase in fiber parallelization overshadowed the decrease in sliver uniformity, resulting in a decrease in spinning end breakage. These findings demonstrate the need for achieving fiber parallelization, as well as sliver uniformity measurements, to develop processing organizations that will result in optimum processing performance and improved quality control.

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Dependence of Hook Removal at Drawing on Some Drafting Parameters

Cited by 6 publications

References 4 publications

Simulation of fiber configuration in the sliver with the straightness and separation degree

Simulation of fiber configuration in the sliver with the straightness and separation degree

A Comparative Study on Different Dimensions of CAD

The Effect of Drawing-Frame Variables on Cotton Fiber Hooks and Parallelization and Processing Performance

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