Effect of two separate fibre feed systems in rotor spinning on yarn properties

Hajilari, M.; Eskandarnejad, Safdar; Behzadan, H.; Moghadam, M. Bameni

doi:10.1007/bf02875878

Cited by 13 publications

(12 citation statements)

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“…Recent developments in rotor spinning have concentrated on improving yarn quality and productivity through design modifications of machine components. For example, modification in the feeding unit by using two feeding rollers rather than one was done with an objective to improve fibre opening by gradual loading of the opening roller and to improve the fibre orientation and properties of the final rotor yarn [116,117]. Since its commercial introduction in ITMA-1967, the rotor speed in rotor spinning has been increased from 30,000 rpm to 200,000 rpm and manufacturers have produced longer automated machines.…”

Section: 22mentioning

confidence: 99%

Cotton in the new millennium: advances, economics, perceptions and problems

et al. 2018

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Cotton is the most significant natural fibre and has been a preferred choice of the textile industry and consumers since the industrial revolution began. The share of man-made fibres, both regenerated and synthetic fibres, has grown considerably in recent times but cotton production has also been on the rise and accounts for about half of the fibres used for apparel and textile goods. To cotton's advantage, the premium attached to the presence of cotton fibre and the general positive consumer perception is well established, however, compared to commodity manmade fibres and high performance fibres, cotton has limitations in terms of its mechanical properties but can help to overcome moisture management issues that arise with performance apparel during active wear. This issue of Textile Progress aims to: i. Report on advances in cotton cultivation and processing as well as improvements to conventional cotton cultivation and ginning. The processing of cotton in the textile industry from fibre to finished fabric, cotton and its blends, and their applications in technical textiles are also covered. ii. Explore the economic impact of cotton in different parts of the world including an overview of global cotton trade. iii. Examine the environmental perception of cotton fibre and efforts in organic and genetically-modified (GM) cotton production. The topic of naturally-coloured cotton, post-consumer waste is covered and the environmental impacts of cotton cultivation and processing are discussed. Hazardous effects of cultivation, such as the extensive use of pesticides, insecticides and irrigation with fresh water, and consequences of the use of GM cotton and cotton fibres in general on the climate are summarised and the effects of cotton processing on workers are addressed. The potential hazards during cotton cultivation, processing and use are also included. iv. Examine how the properties of cotton textiles can be enhanced, for example, by improving wrinkle recovery and reducing the flammability of cotton fibre.

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Section: 22mentioning

confidence: 99%

Cotton in the new millennium: advances, economics, perceptions and problems

et al. 2018

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“…Figure 4 shows the effect of navel types on wrapper formation. Hajilari et al [15] worked on wrapper types and classified them into four group as follows. First group is loose and concentrated wrapper fiber; second is loose and distributed wrapper fiber; third, tough and concentrated wrapper fiber; fourth, tough and distributed wrapper fiber.…”

Section: Abrasion Resistancementioning

confidence: 99%

Effect of Some Navels on Properties of Cotton/Nylon66 Blend (1 : 1) Rotor Spun Yarn and Wrapper Formation: A Comparison between Rotor and Ring Spun Yarn

Roudbari

Eskandarnejad

2013

Journal of Textiles

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Use of nylon/cotton blend yarn in military uniform is common and due to advantages in its fabric in comparison to 100% cotton fabrics, capabilities of military uniforms have been improved. In this study the effects of navel type on properties of (50%-50%) nylon/cotton blend yarn and wrapper formation were investigated and compared with similar ring spun yarn. Rotor spun yarn was produced on a single head laboratory rotor spinning machine with four navels (smooth, spiral, 3 grooved, and 4 grooved) and ring yarn was produced on a zinser 319 ring spinning machine. Test result showed that navel type has a significant effect on yarn strength and strength of smooth navel yarn was maximum. Elongation of a 100% cotton rotor spun yarn is more than similar ring yarn, but it was not observed in cotton/nylon blend. Yarn irregularity and imperfections varied significantly with navel type and for rotor yarns were more than the ring yarn. Navel type had significant effect on yarn hairiness but it didnot have an effect on yarn abrasion significantly.

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“…Increasing the number of feed rollers from one to two may improve the fiber opening and blending effect by gradually loading of the opening roller, which may improve fiber orientation and blending in the final yarn and yarn properties. 9…”

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confidence: 99%

“…With modified feeding systems, blended yarn, fancy yarn (including slub yarn), and filament/staple composite yarn can be produced. [6][7][8] Hajilari et al, 9 Peyravi et al 10 , and Kwasniak 11 reported that two separate fiber feed systems can be modified on the rotor spinning machine. There were two cases of positioning two sliver feed rollers side by side or one on top of the other one.…”

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confidence: 99%

Structure and performance of color blended rotor spun yarn produced by a novel frame with asynchronous feed rollers

Yang

Gao

2017

Textile Research Journal

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This paper introduces a new and flexible spinning method that is modified on a rotor spinning machine. The modification is implemented by a novel mechanical system specially designed to incorporate three separate feed rollers side by side and controlled by servo motors with programmable logic controller (PLC). Using this new method, yarn structure parameters including linear density and blend ratio can be controlled and realized by asynchronous drafted slivers. Sixty-six types of color blended yarns were produced by controlling blending percentages of three basic colored slivers (magenta, yellow, and cyan) by changing the feeding speeds of the slivers respectively with constant yarn linear density and color. Surface morphologies, blending effects, and performances of the yarns were tested and analyzed. In addition, fancy yarns including slub yarn, period melange yarn, gradient melange yarn, and color pointed melange yarn were produced and their longitudinal morphologies were taken. The results demonstrated spinning feasibility and product variety of the three channeled rotor spun process.

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Effect of two separate fibre feed systems in rotor spinning on yarn properties

Cited by 13 publications

References 1 publication

Cotton in the new millennium: advances, economics, perceptions and problems

Cotton in the new millennium: advances, economics, perceptions and problems

Effect of Some Navels on Properties of Cotton/Nylon66 Blend (1 : 1) Rotor Spun Yarn and Wrapper Formation: A Comparison between Rotor and Ring Spun Yarn

Structure and performance of color blended rotor spun yarn produced by a novel frame with asynchronous feed rollers

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