Fiber Length Distribution in Cotton Processing: A Finite Mixture Distribution Model

Krifa, Mourad

doi:10.1177/0040517508083729

Cited by 27 publications

(26 citation statements)

References 14 publications

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“…Line A is for extension of the crystal lattice, lowered to B owing to its helical structure, to C by untwisting of reversals and to D by pulling out convolutions. The dotted lines (letters with primes) are for wet cotton [4,54,55] . Fibers materials are increasingly subjected to higher straining levels during processing and end use .The interlacing of one set of threads with another in the fabric usually contributes to an accretion or growth breakdowns resistance of warp or weft direction [56] .…”

Section: ‫االنسانية‬ ‫والعلوم‬ ‫والفنون‬ ‫العمارة‬ ‫مجلة‬ -‫خاص‬ ‫عددmentioning

confidence: 99%

النسبة بین الضغط الواقع وسلوک الإجهاد للمواد النسجیة ( الخیوط و الأقمشة )

الطنطاوى¹

2020

مجلة العمارة والفنون والعلوم الإنسانیة

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Woven fabric structures have, on account of the manufacturing process, a characteristic waviness of the fabric threads are not uniform, weft and warp threads are curved depending on the weave type, weaving process, coating process and the tension rate. If tension forces are applied to such a fabric, then displacements of the fabric structure take place as a result of the alteration of the thread curvature, which are described as constructional strain. This phoneme is fitted better by a viscoelastic material. These property one of results of ranking of textile subject for end use. The relationship between applied stress and resultant strain contains a timedependent element parameter. In stress-strain behavior of textile material we can get various, parameters like initial modules, yield stress, yield strain, region beyond the yield point, tests relevant to this phoneme, all pervious behaviors of textile material discussed in this paper. The main objectifies of this brief to clearly understand the fundamentals of deformation of textile martials under representation of stress to clarify the terminology the fabric structure and strain variation during deformation. We cannot confirm or deny the existence of a uniform stress behavior for one type of textile material, but this data is assumed to be categorized for each experiment separately. Exploration and examination in textile stress behavior require more and more experiment's trails and proof.

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Section: ‫االنسانية‬ ‫والعلوم‬ ‫والفنون‬ ‫العمارة‬ ‫مجلة‬ -‫خاص‬ ‫عددmentioning

confidence: 99%

النسبة بین الضغط الواقع وسلوک الإجهاد للمواد النسجیة ( الخیوط و الأقمشة )

الطنطاوى¹

2020

مجلة العمارة والفنون والعلوم الإنسانیة

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“…4 According to equation (14), equation (15), and equation (17), the corresponding parameters about the number of fibers could be calculated and these are listed in Table 4.…”

Section: Experimental Verificationmentioning

confidence: 99%

The theoretical yarn unevenness of cotton considering the joint influence of fiber length distribution and fiber fineness

Kuang

Yuan-bo

2015

Textile Research Journal

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The theoretical yarn unevenness has been discussed by considering the joint influence of fiber length distribution and fiber fineness. For fiber length distribution, the fiber length density function was derived from the specific Weibull parameters obtained from actual fiber length measurements using an USTER AFIS instrument. Meanwhile, fiber fineness was added to Suh's model by expressing spun yarn irregularity in terms of fiber mass variation. Comparisons of the calculated value of theoretical yarn unevenness in this paper with the tested and previously researched ones for different cotton yarns have been made. It is shown that the theoretical yarn unevenness calculated in this paper could better reflect the effect of fiber length and fiber fineness on yarn unevenness. This might be the theoretical foundation for the prediction of theoretical cotton yarn unevenness on the basis of actual fiber length distribution and fiber fineness.

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“…14–16 Even spinning processes can degrade fiber quality by breaking fibers and, as a result, the quality of fiber in the yarn is not the same as the quality of the raw fiber. 17,18…”

mentioning

confidence: 99%

Characterizing the total within-sample variation in cotton fiber length using the High Volume Instrument fibrogram

Sayeed

Schumann

Wanjura

et al. 2020

Textile Research Journal

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Within-sample variation in cotton fiber length is important when explaining variation in yarn quality. However, typical High Volume Instrument (HVI) length parameters, the Upper Half Mean Length (UHML) and Uniformity Index (UI), do not characterize the total within-sample variation in fiber length. HVI fiber length measurements are based on the fibrogram principle where the HVI generates a curve called a fibrogram and reports the UHML and UI. Our results, based on 19,628 commercial bales, reveal that the typical HVI length measurements do not characterize unique types of length variation. Fibrograms from a subset of 538 commercial samples suggest that the fibrograms capture additional within-sample variation in fiber length that is not being currently reported. Two additional sets of samples were then used to evaluate the importance of this additional length variation. Partial Least Square Regression models and leave-one-out cross-validation reveal that the HVI fibrogram explains yarn quality better than current HVI length parameters and is comparable with the Advanced Fiber Information System (AFIS) length distribution by number. The validation results show that the models built with the HVI fibrogram are better than models with the current HVI length parameters and at least as good as the AFIS length distribution by number when predicting yarn quality. Fiber length variation captured by the whole fibrogram could provide a new tool to breeders for selecting breeding lines and spinners for purchasing cotton bales.

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Fiber Length Distribution in Cotton Processing: A Finite Mixture Distribution Model

Cited by 27 publications

References 14 publications

النسبة بین الضغط الواقع وسلوک الإجهاد للمواد النسجیة ( الخیوط و الأقمشة )

النسبة بین الضغط الواقع وسلوک الإجهاد للمواد النسجیة ( الخیوط و الأقمشة )

The theoretical yarn unevenness of cotton considering the joint influence of fiber length distribution and fiber fineness

Characterizing the total within-sample variation in cotton fiber length using the High Volume Instrument fibrogram

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