38—the Weighted-Ring Stiffness Test

Owen, J. D.; Riding, G.

doi:10.1080/19447026408662420

Cited by 20 publications

(6 citation statements)

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“…The method was originally suggested by Peirce [ 7 ] and subsequently used by Carlene [ 2 ] to determine the relation between fiber and yarn flexural rigidity in continuous filament viscose yarns. This method was further developed by Owen and Riding [ 6 ] , based on which the Shirley Institute developed a yarn stiffness tester. In this method, a ring of yam is formed by a cylindrical former 7.75 cm in circumference.…”

Section: Materials and Test Methodsmentioning

confidence: 99%

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Effects of Filament Modulus and Linear Density on the Properties of Air-Jet Textured Yarns

Sengupta¹,

Kothari²,

Sensarma³

1996

Textile Research Journal

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The effect of filament initial modulus on textured yarn properties is studied, keeping other parameters constant. Initial modulus has a major influence on textured yarn properties. An increased initial modulus causes poor texturizability and therefore inferior textured yarn properties such as poor bulk, stability, loop frequency, and higher nep level. A study of the effect of filament linear density on textured yarn properties shows that finer filaments produce better quality yarns as far as loop frequency, bulk, and instability values are concerned, but they also produce higher numbers of neps

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Section: Materials and Test Methodsmentioning

confidence: 99%

“…The length of the deformed loop (R2) is then measured. Flexural rigidity is calculated from the values of R,, R2, the weight used, and the circumference of the former, using the formula given by Owen and Riding [ 6 ] .…”

Section: Materials and Test Methodsmentioning

confidence: 99%

Effects of Filament Modulus and Linear Density on the Properties of Air-Jet Textured Yarns

Sengupta¹,

Kothari²,

Sensarma³

1996

Textile Research Journal

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“…Testing gauge length was kept at 500 mm at a 200 mm/min extension rate. Flexural rigidity was calculated using Owen's ring-loop method [14]. Spinning speed…”

Section: Yarn Testingmentioning

confidence: 99%

Effect of MJS Spinning Variables on Yarn Quality

Singh¹

2018

TEK

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Air-jet spinning variables play a signifi cant role in determining MJS (Murata Jet Spinner) yarn structure and quality. This research work is an attempt to highlight the eff ect of a few imperative MJS spinning parameters on yarn quality characteristics. In order to investigate the eff ect of the MJS spinning speed, fi rst-nozzle pressure and feed ratio on resultant yarn quality parameters, a Box-Behnken experimental design for three factors and three levels was adopted for research design and sample preparation. An analysis of variance (ANOVA) was performed to test the statistical signifi cance of all eff ects.

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“…The above-described procedure was applied by many researchers [6][7][8][9] for obtaining the bending rigidities of textile materials. In typical applications of a yarn, for example, the yarn was often tied up and made into a circular ring.…”

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confidence: 99%

Load–extension properties of glass plain knitted technical fabrics: Part I: some additions to the extension of the circular ring problem to make it applicable for a knitted loop head curve

Kurbak

2017

Textile Research Journal

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Pierce’s well-known solution to the problem of the load–extension behavior of a circular ring has been used as one of the measurement methods of bending rigidities of textile yarns. This paper provides some additions to Pierce’s solution to make it applicable for a knitted loop head curve. It is found that the load applied to a ring is equal to the bending rigidity multiplied by the difference between the squares of the major and minor curvatures of the extended ring. This equality gives way to apply the circular ring problem for obtaining the load–extension properties of a knitted loop head. It is also shown that, for the loop head curve, the elastica curve can be replaced by an elliptical curve for up to 30% of extension, as it is easier to apply.

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38—the Weighted-Ring Stiffness Test

Cited by 20 publications

References 0 publications

Effects of Filament Modulus and Linear Density on the Properties of Air-Jet Textured Yarns

Effects of Filament Modulus and Linear Density on the Properties of Air-Jet Textured Yarns

Effect of MJS Spinning Variables on Yarn Quality

Load–extension properties of glass plain knitted technical fabrics: Part I: some additions to the extension of the circular ring problem to make it applicable for a knitted loop head curve

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