Comparative Study of Quality Parameters of Knitted Fabric from Air-jet and Ring Spun Yarn

2005 ◽  
Vol 5 (2) ◽  
pp. 277-280 ◽  
Author(s):  
Babar Shahbaz ◽  
Nisar Ahmad Jamil . ◽  
Assad Farooq . ◽  
Faisal Saleem .
Keyword(s):  
Comparative Study ◽  
Quality Parameters ◽  
Knitted Fabric ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn

scholarly journals Impact of Carding Parameters and Draw Frame Doubling on the Properties of Ring Spun Yarn

2013 ◽  
Vol 8 (2) ◽  
pp. 155892501300800 ◽  
Author(s):  
Abdul Jabbar ◽  
Tanveer Hussain ◽  
Abdul Moqeet
Keyword(s):  
Experimental Design ◽  
Production Rate ◽  
Quality Parameters ◽  
Cotton Yarn ◽  
Yarn Quality ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Yarn Tenacity ◽  
The Impact

The impact of card cylinder speed, card production rate and draw frame doubling on cotton yarn quality parameters was investigated by using the Box-Behnken experimental design. It was found that yarn tenacity, elongation and hairiness increase by increasing the number of draw frame doubling up to a certain level and then decrease by further increase in doubling. Yarn unevenness increased by increasing card production rate and total yarn imperfections increased by decreasing card cylinder speed and increasing card production rate.

Effect of can-storage parameters of finisher drawframe on combed ring spun yarn quality

2019 ◽  
Vol 23 (2) ◽  
pp. 153-167
Author(s):  
Sukhvir Singh ◽  
Niranjan Bhowmick ◽  
Anand Vaz
Keyword(s):  
Storage Time ◽  
Statistical Significance ◽  
Research Work ◽  
Quality Parameters ◽  
Vital Role ◽  
Spring Stiffness ◽  
Content Type ◽  
Yarn Quality ◽  
Spun Yarn ◽  
Ring Spun Yarn

Purpose The present work is a systematic study to understand the cause of poor quality of sliver, roving and yarn due to defective sliver storage can-spring at finisher drawframe machine in spinning preparatory. This study aims to investigate the influence of can-spring stiffness factor, sliver deposition rate and sliver coils position on yarn unevenness and thin places considering two cases of sliver storage time. Design/methodology/approach Combed ring spun yarn samples were produced by varying finisher drawframe variables, which were can-spring stiffness, delivery speed and sliver coils position in storage can. For research design, three-factor three levels of Box-Behnken experimental design was adopted. To investigate the effect of sliver storage time on combed yarn unevenness and thin places, yarn samples were produced at 8 h sliver storage time and without allowing any storage time. Sliver storage time is the time for which combed drawn sliver kept idle in storage cans before feeding to speedframe machine. The 8 h sliver storage time was considered for present study after consulting industrial experts. Adequate numbers of the samples were tested for yarn quality parameters such as yarn unevenness and thin places 50 per cent/km on standard instruments. Finally, the test results were analyzed using statistical software to check the statistical significance of all the independent variables on observed response through analysis of variance. Findings The experimental results showed that the yarn samples produced from older can-springs and bottom position sliver coils stored at 8 h storage time were showing higher yarn unevenness and thin places compared to other yarn samples. The results also showed that the effect of delivery speed is not significant on yarn unevenness for samples produced without allowing any sliver storage time. Research limitations/implications The present study is an outcome of a practical problem experienced at the finisher drawframe machine in a spinning industry. For this purpose, only scrutinized finisher drawframe variables were considered for the evaluation. There are many equally important other factors, which were not considered due to research work feasibility. Social implications This paper investigates the effect of some imperative factors at the finisher drawframe stage on combed yarn quality. The present study will boost existing knowledge of the spinner’s community regarding the effect of can-spring stiffness, sliver coils position and storage time on resultant combed yarn quality parameters. Originality/value The work is original and only a few references are available. The study reveals that storage can-spring stiffness should be chosen carefully for better sliver handling. It is observed that finisher drawframe can-spring stiffness, sliver storage time and sliver coils position play a vital role in deciding quality characteristics of stored sliver and ultimately affect yarn quality.

Properties of cotton/T-400 and 100% cotton plain knitted fabric made from ring spun yarn

2014 ◽  
Vol 45 (11) ◽  
pp. 1039-1044 ◽  
Author(s):  
N. T. Akankwasa ◽  
W. Jun ◽  
Z. Yuze ◽  
M. Mushtaq
Keyword(s):  
Knitted Fabric ◽  
Spun Yarn ◽  
Plain Knitted Fabric ◽  
Ring Spun Yarn

Optimization of Break Draft, Pin Spacer and Rubber Cots Hardness to Enhance the Quality of Ring Spun Yarn Using Factorial Design

2018 ◽  
Vol 13 (2) ◽  
pp. 155892501801300 ◽  
Author(s):  
Furqan Khurshid ◽  
Sarmad Aslam ◽  
Usman Ali ◽  
Amir Abbas ◽  
Talha Ali Hamdani ◽  
...  
Keyword(s):  
Quality Parameters ◽  
Ring Spinning ◽  
Technological Parameters ◽  
Fiber Assembly ◽  
Yarn Quality ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Spinning Triangle ◽  
The Individual

The aim of the present work is to optimize the drafting parameters for ring spinning by using full factorial (23) experimental design. Three drafting parameters of ring spinning each at two levels were chosen for this study. These technological parameters were break draft, size of pin spacer and hardness of rubber cots. It was found from statistical analysis that pin spacer size has a significant effect on yarn unevenness (U %), imperfection index (IPI), hairiness (H) and yarn strength (CLSP) compared to the other two chosen factors. These yarn quality parameters were improved by increasing the spacer size. The increase in spacer size reduces the cohesive forces among the fibers during drafting. The pin between the cradle and the top front roller transfer the individual fibers from the drafted fiber assembly to the spinning triangle without any stretching or accumulation. This yields a more integrated structure and the quality of yarn is improved.

Air and Ring Combination in Tandem Spinning

1997 ◽  
Vol 67 (3) ◽  
pp. 217-223 ◽  
Author(s):  
A. P. S. Sawhney ◽  
L. B. Kimmel
Keyword(s):  
Spindle Speed ◽  
Optimum Level ◽  
Ring Spinning ◽  
Air Jet ◽  
Yarn Twist ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Ring Spun Yarn ◽  
Twist Level ◽  
Air Nozzle

With the objective of boosting ring spinning productivity, a new tandem spinning system combining air-jet and ring spinning technologies in continuous tandem is investigated. In this “air-plus-ring” tandem spinning system, a drafted roving strand as it emerges from the front roller nip feeds into a single- or dual-jet air nozzle where it is subjected to a vortex of compressed air, producing a pneumatically entangled, false-twisted, partially strengthened strand. This so-called prefabricated, air-bolstered strand continuously feeds into a standard ring spinning zone and is ultimately spun into a novel, single-component yarn. By spinning a few cotton and cotton-blend yarns with the lowest practical twist levels possible on both the tandem and conventional ring spinning systems, we show that a tandem spun yarn can be produced with a relatively lower (true ring) twist level than a pure ring spun yarn. To an extent, the tandem spinning's air-bolstering action reinforces the drafted fibrous strand, contributing to yarn formation and hence character. Since ring spinning productivity is inversely proportional to yarn twist level, the relatively lower twist level required in tandem spinning allows a proportionately higher yarn production speed (in some cases, up to 50% faster than the conventional ring spinning), while maintaining spindle speed at the traditional, optimum level imposed by the limiting traveler speed. Tandem spun yarns, however, are somewhat different from, and generally weaker than, conventional ring spun yarns. This paper briefly describes a prototype of the new tandem spinning system developed on a laboratory Spintester, and shows spinning parameters and properties of a few yarns produced on both the tandem arid conventional ring spinning systems, each employing the traditional (maximum) optimum spindle speed of 10,000 rpm for a given 5.0 cm (2 inch) diameter ring.

Fiber Configuration of Air Jet Vortex Spinning Yarns

2013 ◽  
Vol 834-836 ◽  
pp. 1784-1788
Author(s):  
Ya Hong Zhong ◽  
Jian Hui Ma ◽  
Ming Jie Xing
Keyword(s):  
Outer Layer ◽  
Optical Microscope ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Twisted Fiber

In this paper, the spinning process of air jet vortex spinning was described. The structure of air jet vortex spun yarn was studied by means of blending tracer fibers in spinning. Then the yarns were viewed with the optical microscope and SEM etc. The result shows that air jet vortex spun yarn comprises two parts. The outer layer, composed of twisted fibers, presents helical form. And the inner layer contains about 30% fibers untwisted or slackly twisted. The distance between twisted fiber groups is very short, so the borderline isnt obvious. There is a certain angle between core fibers in parallel and the axes of the yarn. The coefficient of fiber migration of the yarn was calculated, and it is lower than that of ring spun yarn and compact spun yarn.

scholarly journals Modification of Adapter in Auto Cone Winding Machine for Better Performance

2020 ◽  
Vol 8 (6) ◽  
pp. 2761-2768
Keyword(s):  
Cost Savings ◽  
Processing Parameters ◽  
Quality Parameters ◽  
Vital Role ◽  
Energy Meter ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Winding Machine ◽  
Nylon Fibre ◽  
Production Capacities

The economy of Bangladesh is largely depending on textile and garments industries at this moment. In this industry the overall demand of quality and cost reduction is increasing constantly along with steadily growing production capacities. For these reasons backward linkage industry like spinning plays a vital role for sustainable textile production in Bangladesh. Winding machine plays a significant role in quality of ring spun yarn in a spinning factory. Modification of adapter used in winding machine is accomplished in this work. Two diameter of adapter such as 58 mm and 68 mm was produced from nylon fibre and attached to the Muratec 21C winding machine. By using these two modified and one conventional metallic adapter three different fineness of yarn such as 30’s Ne cotton, 40’s Ne PC, and 50’s Ne cotton was produced by ring spinning machine in the same processing parameters. Those yarns were wound with 900, 1100, 1300, 1400 & 1500 m/min with original and modified adapters. After winding of yarn different quality parameters like unevenness (%), imperfection index (-), hairiness (-), Count Strength Product (CSP) were tested through Uster Evenness Tester 5 and Ele Stretch XT tester accordingly and compared them. Power consumption was measured by TRINITY (NF29) energy meter. It was found from the analysis of all test results that adapter of 58 mm performed the best; 68 mm made from nylon fibre the better among three along with cost savings is also possible in using nylon adapter.

scholarly journals A Comparative Study of Hooks in the Ya Rns Produced by Different Spinning Technologies

2015 ◽  
Vol 15 (4) ◽  
pp. 260-265
Author(s):  
Anindya Ghosh ◽  
Subhasis Das ◽  
Prithwiraj Mal
Keyword(s):  
Comparative Study ◽  
Air Jet ◽  
Reverse Trend ◽  
Spun Yarn ◽  
Spun Yarns

AbstractThis article presents a comparative study of hooks’ characteristics of ring, rotor, air-jet and open-end friction spun yarns. Hook types and their extent, spinning in-coefficient and mean fibre extent in the yarns produced on different spinning technologies are investigated. The results show that the hook extents for open-end friction spun yarn are the highest followed by rotor, ring and air-jet spun yarns. Ring and air-jet spun yarns have higher percentage and extent of trailing hook as compared with leading hook, whereas, rotor and friction spun yarns show the reverse trend.

Studies of JetRing Spinning Part I: Reducing Yarn Hairiness with the JetRing

1997 ◽  
Vol 67 (4) ◽  
pp. 253-258 ◽  
Author(s):  
Xungai Wang ◽  
Menghe Miao ◽  
Yanlai How
Keyword(s):  
Tensile Properties ◽  
Air Pressure ◽  
Hair Length ◽  
Ring Spinning ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Yarn Hairiness ◽  
Almost All

This paper introduces the concept of JetRing spinning, a new spinning technique that incorporates features of both ring and air-jet spinning systems. In JetRing spinning, a single air jet is used below the yarn-forming zone of a conventional ring spinning system; this jet acts in a way similar to the first jet in air-jet spinning. The swirling air currents in the jet wind the protruding fibers around the yarn body, thus reducing yarn hairiness. The air pressure applied to the jet in this study is 0.5 bar, which is much lower than the air pressure used in air-jet spinning. To evaluate the performance of JetRing spinning, ring spun and JetRing spun worsted yarns of 56 tex are tested for hairiness, tensile properties, and yarn evenness. The hairiness results from the Zweigle hairiness meter show that the JetRing spun yarn has much lower numbers of hairs than the ring spun yarn in almost all the hair length groups. The total number of hairs exceeding 3 mm ( i.e., the S3 value) for the JetRing spun yarn is nearly 40% less than that of the ring spun yarn, while both yarn types show little difference in evenness and tensile properties.

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