Frictional Properties of Siro Spun Yarns

Subramaniam, V.; Natarajan, Karthiga Shenbagam

doi:10.1177/004051759006000407

Cited by 21 publications

(11 citation statements)

References 9 publications

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“…11 Increasing twisting levels decreases the crosssectional area and increases the hardness. The overall structure as well as the surface of commingled yarns are different than multifilament yarns.…”

Section: Commingled Yarn Friction Propertiesmentioning

confidence: 99%

Effect of twisting on mechanical properties of GF/PP commingled hybrid yarns and UD‐composites

Torun

Hoffmann

Mountasir

et al. 2011

J of Applied Polymer Sci

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This study was conducted due to the necessity for improving the processability of commingled yarns during textile processing, in particular dense 3D preform weaving. Open structure of the commingled yarns caused higher production stops. As a possible solution, GF/PP commingled yarns with different twisting levels were produced. Effect of twisting on the mechanical properties of commingled yarns and on their compression molded UD composites are determined. Further tests were executed about yarn/yarn and yarn/metal friction of twisted commingled yarns, which are important properties during textile processing. Theoretical approaches such as a yarn model with linear bar elements and lamina equation with an equivalent angle distortion of over-delivery proved useful to relate the structural parameters and mechanical properties. As a result, twisting did not significantly affect the modulus of elasticity of UD-composites, however, the tensile strength of UD-composites were reduced by further processing even without twisting. Therefore, small twisting levels can be applied on commingled yarns to improve processability of dense preforms without significantly affecting the mechanical performance. V C 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: [246][247][248][249][250][251][252][253][254][255][256] 2012

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Section: Commingled Yarn Friction Propertiesmentioning

confidence: 99%

Effect of twisting on mechanical properties of GF/PP commingled hybrid yarns and UD‐composites

Torun

Hoffmann

Mountasir

et al. 2011

J of Applied Polymer Sci

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“…Interestingly, SIRO spinning method using two strands on the conventional ring frame produces a special structured yarn with better quality. This process is not only cost effective compared to plying of yarn but also gives better spinning performance and yarn quality as observed by various researchers [14][15][16][17][18][19][20]. Isthiaque and Agarwal in their study on core sheath yarn illustrate that apart from raw material properties, the geometrical arrangement of fibres within the yarn structure significantly influences the mechanical properties of the yarn [15].…”

Section: Introductionmentioning

confidence: 97%

New approaches to engineer the yarn structure; Part A: For better carpet performance

Ishtiaque¹,

Sen²,

Kumar³

2013

Journal of Industrial Textiles

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Invariably different fibres are mixed homogeneously at yarn stage to obtain the desired carpet characteristics such as resiliency, lustre, reduced shedding and cost reduction. In order to fully exploit the individual fibre characteristics, i.e. fibre diameter, medullation and bending rigidity, an attempt has been made to engineer the carpet yarns to strategically position different characteristics of fibre across the yarn cross-section. Accordingly three layered engineered yarns of 4 Nm linear density of different fibre components as in control yarns, i.e. Malpura Magra and Chokla wools to 1:4:5 in inner, middle and outermost layer, respectively, were produced by using modified SIRO spinning method on worsted spinning system. The recovery property of yarns was found to be better for all engineered yarns as compared to control yarns. Carpet made from considered yarns were subjected to compression, dynamic loading and abrasion for assessing their performance. Higher bending rigidity and recovery properties of control and engineered yarns have improved the carpet performance. Carpet resiliency was found to be better for carpet made from engineered yarns. The engineered yarn carpets give lower abrasion loss and carpet thickness loss under dynamic loading. Among all the control and engineered yarns, carpets made from two layered roving to obtain threelayered yarn have yielded best results.

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“…11 The effect of cotton, viscose, and polyester fibers yarn structures produced from the ring, rotor, and friction spinning technique has also been on the frictional properties of yarn. 14 Subramaniam and Natarajan 15 investigated the friction properties of Sirospunä yarn using yarn to yarn and yarn to metal friction measurement methods. Ramkumar et al 16 evaluated that the frictional properties of friction spun yarn are influenced by types of fiber and tension applied.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of yarn to metal frictional coefficient of cotton spun yarn using Taguchi design of experiment

Shahzad

Ahmad

Ali

et al. 2018

The Journal of Strain Analysis for Engineering Design

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Yarn's surface to metal friction is an important consideration in the subsequent process of knitting and weaving as it influences mainly the ends down rate, fly generation, process efficiency, wear and tear of machine parts, and production rate of the process. These frictional properties are measured in terms of the coefficient of friction of yarn. The effect of cotton type, yarn twist, yarn linear density, process type, and finishing treatment was studied on the surface to the metal friction coefficient of cotton spun yarn using Taguchi experimental design. The experiments were conducted with Pakistani and Indian cotton using combed and carded ring spinning processes. Using Taguchi design of experiment, a total of 36 samples of cotton ring-spun yarns were produced. The coefficient of friction between the yarn's surface and metal's surface is measured in compliance with ASTM D3108. The outcome of the Taguchi model to predict the coefficient of friction of yarns with a predefined combination of constituting parameters was further confirmed with nine yarn samples. The frictional characteristics of yarns are found to be influenced by all factors. In addition to the application of wax, the longer fiber length, lower trash count, lower short fiber index, and the optimum level of twist are found advantageous to reduce the yarn coefficient of friction.

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Frictional Properties of Siro Spun Yarns

Cited by 21 publications

References 9 publications

Effect of twisting on mechanical properties of GF/PP commingled hybrid yarns and UD‐composites

Effect of twisting on mechanical properties of GF/PP commingled hybrid yarns and UD‐composites

New approaches to engineer the yarn structure; Part A: For better carpet performance

Statistical analysis of yarn to metal frictional coefficient of cotton spun yarn using Taguchi design of experiment

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