10–an Alternative Approach to Two-Fold Weaving Yarn Part I: Control of Surface Fibres

Plate, D. E. A.; Lappage, J.

doi:10.1080/00405008208658922

Cited by 39 publications

(15 citation statements)

References 1 publication

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“…SiroSpun yarns are produced from two drafted strands of roving, spaced about 14 mm apart in the drafting zone, that are allowed to combine in the twisting zone just below the front draft rollers (Plate & Lappage, 1982). In the following trial, a standard SiroSpun roving guiding system was used.…”

Section: Sirospun Roving Feedingmentioning

confidence: 99%

High-speed video graphic study of filament-core yarn spinning

Miao¹,

Barnes²,

Vuckovic³

2010

Journal of the Textile Institute

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One of the challenges in spinning fine-count core yarns is to achieve a perfect coverage of the core, especially when the filament core comprises a large proportion of the yarn. Any uncovered parts of the core will appear on the yarn surface as periodical defects, known as the barber-pole effect. The main tool available for spinners to improve yarn coverage (i.e. reduction of barber-pole effect) is optimising the relative roving and filament feeding configuration at the entrance to the yarn-forming zone. Using high-speed video photography, we investigated the formation of the barber-pole effect for several feeding configurations and the use of a false-twisting device. Core-yarn coverage could be improved by applying false twist in the yarn-formation zone. The direction of the false twist relative to the final twist imparted by the ring spindle was found to be critical to the improvement of the resultant core-yarn coverage. The coverage of core yarns produced in the trials was evaluated using an objective method based on a fast Fourier transform (FFT) algorithm. The objective assessment method is also described.

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Section: Sirospun Roving Feedingmentioning

confidence: 99%

High-speed video graphic study of filament-core yarn spinning

Miao¹,

Barnes²,

Vuckovic³

2010

Journal of the Textile Institute

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“…1 Presently, ring spinning [2][3][4][5] still takes a leading role in the yarn manufacturing industry due to its high yarn quality and flexibility in materials and yarn counts. With the increasing demand for novel features or improving qualities, many modifications based on the ring spinning system have been developed, such as Compact, 6 Siro 7 and Solo. 8 Recently, a novel spinning technology, named Nu-Torque TM , has been proposed by introducing a false-twisting unit into the conventional ring frame for producing low-twist and soft handle single yarns.…”

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confidence: 99%

Yarn and fabric properties in a modified ring spinning system considering the effect of the friction surface of the false-twister

Yin

Tao

2019

Textile Research Journal

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This paper experimentally studies the relationship between the friction surface of a false-twisting unit and the quality of cotton yarns produced by a modified ring spinning system, with the adoption of the single friction-belt false-twister. The friction surface of the false-twisting unit, as a key twisting component, has been studied in terms of material, surface roughness, hardness and diameter, as well as the interaction between these factors and resultant yarn properties, with particular attention to yarn imperfections. Experimental results showed that the false-twisting unit with a short interactive path demonstrated significant reduction of yarn imperfections, especially yarn neps. With the optimal false-twisting unit, performances of the modified yarns and their knitted fabrics were evaluated and compared with the conventional ones.

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“…On the basis of the conventional ring spinning method, some modified spinning techniques have been developed by incorporating modification units to improve the yarn quality, such as compact spinning, 1 solo spinning 2 and siro spinning. 3 Also some other novel modifications have been made to improve yarn properties. [4][5][6][7][8][9] More recently, a modified ring spinning technique has been developed by incorporating a false twister between the front rollers and yarn guide on the conventional ring frame.…”

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confidence: 99%

Investigation and evaluation on fine Upland cotton blend yarns made by the modified ring spinning system

Guo

Feng

Yin

et al. 2015

Textile Research Journal

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A modified ring spinning technology has been successfully applied to the production of yarns with reduced twist level and improved performance. Various US cottons and Chinese cottons have been covered in previous studies. In this paper, three combed rovings with different blending ratios of Upland and Extra Long cottons were adopted in a systematic investigation and evaluation on a fine modified ring yarn produced on a new modified spinning system that was developed to reduce the imperfections of fine yarns. The potentially important spinning parameters were proposed and their individual and interaction effects of spinning system parameters on the properties of fine modified ring yarn were quantitatively examined using the response surface methodology. Then with the optimum parameters, physical properties of the yarns and their knitted fabrics produced from three rovings were evaluated by comparing them with the conventional ones. Experimental results showed that yarns produced in the new modified spinning system had reduced imperfections; at low twist levels, fine modified yarns and resultant fabrics also showed improved performance. Moreover, properties of fiber materials and roving quality influenced the properties of modified yarns and knitted fabrics.

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10–an Alternative Approach to Two-Fold Weaving Yarn Part I: Control of Surface Fibres

Cited by 39 publications

References 1 publication

High-speed video graphic study of filament-core yarn spinning

High-speed video graphic study of filament-core yarn spinning

Yarn and fabric properties in a modified ring spinning system considering the effect of the friction surface of the false-twister

Investigation and evaluation on fine Upland cotton blend yarns made by the modified ring spinning system

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