Optimization of Spacer Size and Degree of Shore Hardness on Yarn Quality in Ring Frame Machine

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Shiferaw M ◽  
◽  
Muhammed A ◽  
Keyword(s):  
Cotton Fiber ◽  
Quality Parameters ◽  
Ring Spinning ◽  
Shore Hardness ◽  
Testing Methods ◽  
Standard Testing ◽  
Yarn Quality ◽  
Ring Frame ◽  
Pink Color ◽  
Yarn Production

This study was mainly focused on the optimization of spacer size and degree of shore hardness in ring frame drafting systems to improve yarn quality parameters. The 100% cotton fiber carded yarn samples of 35.5Nm were produced to analyze the effect of spacer size and degree of shore hardness with different combinations. The spacers were 4.2 and 4.5 mm and the shore hardness was 70 back & 62 front and 70 back & 65 front. All yarn samples of the same count were produced on the same spinning positions by changing the spacer’s size and degree of shore hardness by keeping all other parameters constant. The produced samples were tested according to standard testing methods and instruments. After testing, the tested results were compared to analyze the influence of spacer size and shore hardness on yarn quality in a ring spinning frame. The technologist needs to understand this and act on it to optimize the yarn production. The specific size of the spacer with specific shore hardness should be used for a particular count of yarn. The results showed that yarn quality i.e. U%, Cvm, Neps +200%/km, Thick +50%/km, Thin -50%/ km, TIPI are considerably influenced by the spacer size with different shore hardness. So it is concluded that the best result has been obtained in the case of using a pink color spacer (4.2mm) with 70 degrees back and 65 front degree front top rollers.

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.

scholarly journals PENGARUH POSISI FILAMEN LYCRA PADA PROSES PEMBUATAN BENANG ELASTAN CMSY 10/40 D SEBAGAI USAHA TERHADAP KEKUATAN TARIK DAN MULUR BENANG DI MESIN RING SPINNING DENGAN ALAT TAMBAHAN V-GROOVE

Texere ◽  
2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Dimas Kusumaatmadja ◽  
Syarif Iskandar ◽  
Nandang Setiawan
Keyword(s):  
Ring Spinning ◽  
Ring Frame

Dalam proses pembuatan benang inti elastan (lycra) khususnya pada mesin ring frame, terdapat perbedaan perlakuan dibandingkan dengan pemintalan jenis lainya. Secara umum terdapat tiga fungsi pada mesin ring frame yaitu; peregangan, pemberi antihan dan penggulungan. Penambahan alat v groove pada mesin ring frame mempunyai fungsi sebagai penghantar filamen, dalam tegangan dan kecepatan tertentu, kepada mulut rol peregang bagian depan. Pada alat tersebut didapat berbagai macam setting posisi untuk menghasilkan benang dengan kualitas tertentu.Filamen lycra dihantarkan terhadap mulut rol peregang bagian depan dimana terjadi peregangan, dan diteruskan ke proses selanjutnya yaitu proses penggintiran antara filamen lycra sebagai benang inti dan roving dengan bahan baku serat kapas sebagai pembungkus luar dari benang tersebut, percobaan terhadap posisi filament, posisi 1 (pinggir), posisi 2 (tengah) dan posisi 3 (diantaranya) yang mempunyai pengaruh pada pembuatan benang elastan terhadap kekuatan dan mulur benang.

scholarly journals Modal–Cotton Fibre Blend Ratio and Ring Frame Parameter Optimisation Through the Taguchi Method

2019 ◽  
Vol 19 (1) ◽  
pp. 86-96
Author(s):  
R Maheswaran ◽  
V Srinivasan
Keyword(s):  
Parametric Design ◽  
Ring Spinning ◽  
Anova Analysis ◽  
Blend Ratio ◽  
Blended Yarn ◽  
System A ◽  
Ring Frame ◽  
Yarn Properties ◽  
Yarn Tenacity ◽  
Setting Parameters

Abstract The influence of Modal–cotton (MC) fibre blend ratio and ring frame machine parameters such as front top roller loading and break draft on the blended yarn properties has been studied. Compact MC blended yarn samples of 14.75 tex with three different MC fibre blend ratio has been produced in a LR 6 ring spinning frame fitted with Suessen Compact drafting system. A robust design optimisation to minimise the variations of the output yarn properties such as blended yarn tenacity, yarn unevenness and hairiness caused because of the variations in the material as well as machine setting parameters is achieved through the Taguchi parametric design approach. It is found that the maximum compact MC blended yarn tenacity is 23.76 g/tex, which is influenced very much by MC fibre blend ratio but meagrely by top roller loading and break draft. Similarly, the minimum 9.54 U% and 3.59 hairiness index are achieved with 100:0 and 70:30 MC fibre blend ratio, respectively, at 23-kg top roller loading. Statistical ANOVA analysis is performed on the results and optimum values are obtained within the 95% confidential level through confirmation experiments.

INfluence of Some Mechanical Factors of Ring Spinning Machine on Cotton Yarn Quality

2002 ◽  
Vol 2 (4) ◽  
pp. 453-456 ◽  
Author(s):  
Iftikhar Ahmad . ◽  
Nisar Ahmad Jamil . ◽  
Nadeem Haider .
Keyword(s):  
Cotton Yarn ◽  
Ring Spinning ◽  
Yarn Quality ◽  
Mechanical Factors

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.

scholarly journals Numerical and experimental study of the influence of nozzle flow parameters on yarn production by jet-ring spinning

2018 ◽  
Vol 57 (4) ◽  
pp. 2975-2989
Author(s):  
Hassan A.H. Ahmed ◽  
Rola S. Afify ◽  
Ahmed H. Hassanin ◽  
Ibrahim A. El-Hawary ◽  
Raafat I. Mashaly
Keyword(s):  
Experimental Study ◽  
Nozzle Flow ◽  
Ring Spinning ◽  
Flow Parameters ◽  
Yarn Production

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.

A Study on Growth and Financial Performance of Selected Textile Companies in Coimbatore District

1970 ◽  
Vol 3 (2) ◽  
pp. 101-111
Author(s):  
P. Chellasamy ◽  
N. Sumathi
Keyword(s):  
Driving Force ◽  
Garment Industry ◽  
Cotton Yarn ◽  
Remarkable Improvement ◽  
Yarn Quality ◽  
Coimbatore District ◽  
The World ◽  
Cotton Yarns ◽  
Yarn Production

The textile and garment industry fulfils a pivotal role in the Indian economy. It is a major foreign exchange earner and, after agriculture, it is the largest employer with a total workforce of 35 mn. In 2005 textiles and garments accounted for about 14% of industrial production and 16% of export earnings. In cotton yarn production India has made a mark in the world textile scenario. It is the largest exporter of the cotton yarns in the world. Besides yarn exports, India’s growing garment industry is working as a driving force to improve the yarn quality and to increase the production of cotton yarn. This has resulted in an overall improvement in the quality of all textile products including yarn and fabric. The WTO era has seen remarkable improvement in export of textiles. To help the mills in bench marking, SITRA has conducted a survey on the cotton yarn quality for fine and superfine yarns, in which 58 mills from all over India have taken part.

Numerical simulation of top roller pressure and deformation in ring spinning with three draft zones using finite element method

2016 ◽  
Vol 28 (2) ◽  
Author(s):  
Xiaojuan Zhang ◽  
Juan Wu ◽  
Bojun Xu ◽  
Xinjin Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Carbon Fiber ◽  
Design Methodology ◽  
Ring Spinning ◽  
Ansys Software ◽  
Yarn Quality ◽  
Cotton Yarns ◽  
Yarn Tenacity ◽  
Element Method

Purpose This paper presented a new kind of ring spinning frame with four pairs of rollers, and they are the front roller and the front top roller, the first middle roller (FMR) and the first middle top roller (FMTR), the second middle roller and the second middle top roller, the back roller and the back top roller. The FMR is the front roller of middle draft zone, and the back roller of the front draft zone. Therefore, the deformation of FMTR during spinning is an important factor for yarn quality, which was studied in this paper. Design/methodology/approach In this paper, by finite element method (FEM), the pressure and deformation of FMTR were studied. FMTR made from steel and sleeved carbon fiber were compared. 5.8tex, 4.9tex and 3.9tex cotton yarns were spun, and corresponding numerical simulations of FMTR pressure and deformation were presented in ANSYS software and comparatively analyzed. Then, corresponding yarn qualities were compared. Findings The results indicate that pressure and deformation of FMTR have little effects on yarn tenacity and hairiness, while have great effects on yarn evenness. For 5.8tex and 4.9tex cotton yarn, yarns spun by FMTR made from sleeved carbon fiber have larger pressure and deformation at the middle of nipper bites of FMR and FMTR, and yarn evenness is better. For 3.9tex cotton yarns, at the middle of nipper bites of FMR and FMTR, FMTR made from steel has smaller pressure. But deformation of FMTR made from steel is larger, and yarn evenness is better. Originality/value This paper studied pressure and deformation of FMTR by finite element method (FEM), which serve as a theoretical underpinning for yarn spinning in three draft zones ring spinning machine.

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