Analysis of Blend Irregularities and Fiber Migration Index of Wool/Acrylic Blended Worsted Yarns by Using an Image-analysis Technique

Najar, Saeed Shaikhzadeh; Amani, Mozhdeh; Hasani, Hossein

doi:10.1080/00405000308630606

Cited by 3 publications

(8 citation statements)

References 16 publications

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“…In other words, variations of the fiber placement in the yarn can be defined as fiber migration. The two most important parameters to be considered in terms of cohesion and rigidity are yarn twist and fiber migration [1][2][3][4][5][6][7][8]. The packing density that is the maximum amount of fiber in yarn cross-section is also very significant parameter because it determines the characteristics of the yarn such as feeling, dyeing, thermal conductivity and bulkiness.…”

Section: Introductionmentioning

confidence: 99%

Effect of Yarn Physical Properties on Fiber Migration and Packing Density of Cotton/Acrylic Blended Yarns

Çelik

GÜLİSTAN

2023

Tekstil Ve Konfeksiyon

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In the scope of the study, the effect of fiber blending ratio, yarn count and twist coefficient on fiber migration, packing density and diameter of the cotton/acrylic blended yarns were investigated. The yarn samples with 75-25%, %50-50%, 40-60% cotton-acrylic blending ratios were produced with three different yarn numbers; 20/1 Ne, 24/1 Ne, 30/1 Ne and three twist coefficients; 3.5 α, 4 α, 4.5 α. Thus, totally 27 yarn samples were obtained. The yarn cross-sectional samples were sliced with microtome. The image frames of yarn cross-sections were acquired via digital microscope. The yarn packing density was calculated by using image processing algorithm and the fiber migration was determined via cross-section images. The results were evaluated statistically.

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Section: Introductionmentioning

confidence: 99%

Effect of Yarn Physical Properties on Fiber Migration and Packing Density of Cotton/Acrylic Blended Yarns

Çelik

GÜLİSTAN

2023

Tekstil Ve Konfeksiyon

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“…In the case of staple yarn, longitudinal behaviour plays more important role in this respect. But the distribution of fibres in the yarn cross-section can also be equally important in deciding the yarn properties [1][2][3][4][5][6][7][8][9][10]. The fibre orientation in yarn cross-section also depends on mixing stages of fibres during spinning process.…”

Section: Introductionmentioning

confidence: 99%

Study of engineered carpet yarns structure; Part B: By cross-sectional microtomy

Ishtiaque¹,

Sen²,

Kumar³

2013

Journal of Industrial Textiles

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This paper describes the measurement of packing density and radial packing density of newly developed three-layered, wool structure yarn for pile carpets. Three different varieties of Indian wool, in terms of fibre diameter, medullation and bending rigidity, were strategically positioned in the (ring spun) yarn cross-section. The measurements of all the researched yarns have shown that radial packing density is neither uniform across the yarn cross-section nor maximum at yarn core. The maximum packing density of these yarns occurs at some different distances from the yarn axis and it sharply decreases from that point towards yarn surface. In general, all the yarns are seen to have slight hollowness near their axis. The possible mechanism of the fibre density distribution in the yarn cross-section is also discussed.

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“…2 Although the importance of the fiber distribution in yarns is understood, methods for characterizing this distribution remain limited. Recent advances in image processing technology have facilitated the development of approaches to fiber recognition through microscopic imaging of yarn cross sections, 5,10 but the indexing principle has not changed considerably.…”

mentioning

confidence: 99%

“…16,17 The indexing method was later applied to other yarn composites and spinning methods. 4,9,10,18–23 MI is successful in describing the migration behavior of a fiber from the core of a yarn to its edge or in the opposite direction. This method has been adopted widely because it can be explained using physical models, 24–26 and the two indexes have been proven to be linked to several factors including fiber length, yarn tension during the drawing process, and spinning method (ring/rotor/jet).…”

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confidence: 99%

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Design of quantification methods for cross-sectional uniformity of functional fiber blended yarns

Luo

2020

Textile Research Journal

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The fiber distribution in yarn structure influences the mechanical, aesthetic, and functional properties of textile products, but methods for characterizing this distribution remain limited. The uniformity of fiber distribution is mostly quantified by the blend irregularity and migration index. Asymmetric and segregated distributions are commonly identified in cross sections of fibers in yarn; however, detecting uniform, wrapped, or core distributions in side-view images is challenging. Therefore, a more effective and versatile method is required for the quantification of cross-sectional uniformity in blended yarns. In this study, two methods for quantifying fiber distribution uniformity were proposed and evaluated. In the window variation method (WVM), which is based on cell counting, windows are randomly selected, and the uniformity of one type of fiber in a yarn cross section calculated according to the variation of the fiber ratio in each window. In the dilation method (DLM), uniformity is quantified according to the dilation area of the targeted fiber. To evaluate these quantification methods, we conducted antibacterial performance tests on 12 chitosan/cotton yarn samples and compared the results with indexes. Comparison of the two methods reveals that the WVM exhibits greater potential because the threshold yarn area ratio and the weights of the corresponding windows can be programmed to achieve certain quantification goals, while the DLM is simple and fast, with fewer variables than the WVM.

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Analysis of Blend Irregularities and Fiber Migration Index of Wool/Acrylic Blended Worsted Yarns by Using an Image-analysis Technique

Cited by 3 publications

References 16 publications

Effect of Yarn Physical Properties on Fiber Migration and Packing Density of Cotton/Acrylic Blended Yarns

Effect of Yarn Physical Properties on Fiber Migration and Packing Density of Cotton/Acrylic Blended Yarns

Study of engineered carpet yarns structure; Part B: By cross-sectional microtomy

Design of quantification methods for cross-sectional uniformity of functional fiber blended yarns

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