scholarly journals Compact Roving for Improved Quality of Ring Spunyarn

2017 ◽  
Vol 25 (0) ◽  
pp. 24-31
Author(s):  
Kumarasamy Subbiah ◽  
Bhaarathi Dhurai ◽  
Venkatraman Subramaniam
Keyword(s):  
Linear Density ◽  
Cotton Yarn ◽  
Cohesion Strength

This article is concerned with the development of a compact system suitable for producing compact roving. The objective is to reduce twist and improve the performance of roving in the subsequent processes. Combed compact cotton yarn with a linear density of 9.84tex was spun from compact and conventional roving. In order to conclude that compactness had been formed in roving, two special tests, namely the minimum twist of cohesion and roving cohesion strength were determined. Yarns produced from conventional and compact roving were compared for their strength, evenness and hairiness. The results show that there was an improvement in the strength and hairiness of the compact yarns produced from compact roving when compared to conventional yarns.

The Effect of Yarn Linear Density on Mechanical Properties of Plain Woven Kenaf Reinforced Unsaturated Polyester Composite

2013 ◽  
Vol 465-466 ◽  
pp. 962-966 ◽  
Author(s):  
Mohd Pahmi bin Saiman ◽  
Mohd Saidin Bin Wahab ◽  
Mat Uzir Wahit
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Unsaturated Polyester ◽  
Composite Panel ◽  
Composite Yarn ◽  
Polyester Composite ◽  
The Impact ◽  
Woven Kenaf

To produce a good quality of dry fabric for reinforced material in a natural-based polymer composite, yarn linear density should be in consideration. A woven kenaf dry fabric with three different linear densities of 276tex, 413.4tex and 759tex were produced. The fabrics with different linear densities were been optimize with the assistance of WiseTex software. The optimized dry fabrics were infused with unsaturated polyester to produce composite panel using vacuum infusion process. The composites properties were tested on the tensile strength, flexural strength and the impact strength. The result shows that the mechanical properties of the composite increased when the yarn linear densities increased.

Design of polyester-elastane-cotton plated knitted components for hot and dry environment

2018 ◽  
Vol 30 (5) ◽  
pp. 657-667
Author(s):  
Varadaraju Ramakrishnan ◽  
Srinivasan Jagannathan
Keyword(s):  
Outer Layer ◽  
Linear Density ◽  
Moisture Transfer ◽  
Contact Layer ◽  
Cotton Yarn ◽  
Heat And Moisture Transfer ◽  
Polyester Yarn ◽  
Content Type ◽  
Skin Contact ◽  
Heat And Moisture

Purpose The purpose of this paper is to optimize the linear densities of polyester yarn and filament for inner layer and elastane for middle layer with cotton yarn outer layer in plain knitted plated structure for hot and dry environment clothing. Design/methodology/approach Three levels of polyester yarn linear densities (11.1, 8.4 and 5.6 Tex), filament linear densities (0.8, 1.55 and 2.3 Decitex) and elastane (0, 4 and 8 percent) with 14.75 Tex cotton yarn have been used to knit 15 single jersey plated fabrics based on Box and Benhens experimental design with same loop length. Three cotton–elastane core-spun fabrics were also produced. All the fabrics were analyzed for moisture and ergonomic comfort properties and wet fabric coefficient of friction. Findings The increase in elastane content and yarn linear density decreases water vapor and air permeability; the increase in filament linear density decreases wicking rate and water absorbency. The optimum solution is 5.55 Tex polyester yarn of 0.8 Decitex filament as inner layer and 14.75 Tex cotton yarn as outer layer which gives good heat and moisture transfer without stickiness. Research limitations/implications The implication of this paper is to study thinner polyester, polypropylene and polyethylene fabrics with more micro pores as skin contact layer for quicker heat and moisture transfer. Practical implications Outward wickability of sweat from the skin is the prime requirement of all skin contact layer fabrics. Social implications It shifts the social attitude of most comfortable fabric to polyester–cotton plated for hot and dry climate. Originality/value This paper employs a more practical method for the selection of fabric.

Modification of Cotton Yarns for Smart Socks Production

2019 ◽  
Vol 800 ◽  
pp. 331-335
Author(s):  
Ieva Bake ◽  
Vineta Afanasjeva ◽  
Silvija Kukle
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Sol Gel ◽  
Antimicrobial Properties ◽  
Mean Value ◽  
Cotton Yarn ◽  
Yarn Strength ◽  
Prototype Development ◽  
Cotton Yarns

The functionality of textiles can be complimented by using a wide variety of modification technologies. This study focuses on textile modification with sol-gel technology as a part of smart sock prototype development. Zinc acetate dehydrate (ZAD) is integrated in sol synthesis and used as modifier thus improving modified cotton yarn mechanical properties and also can prolong time between washing, taking into account modifiers antimicrobial properties. Four hanks of pure cotton yarns with length of 300 m, where modified with silica-based sol with 7,5 wt% ZAD as a modifier. As a part of this study tensile strength and elongation of yarn was determined and changes in liner density were observed. Average yarn linear density increases by 19 % and linear density for knitted samples increases by 2,6 %. Therefore, yarn strength for 80 % of modified samples shows mean value of 2,32 N, that is 17 % higher than unmodified samples.

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.

scholarly journals Image Analysis as a Method of the Assessment of Yarn for Making Flat Textile Fabrics

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Marcin Idzik ◽  
Marek Idzik
Keyword(s):  
Linear Density ◽  
Knitted Fabric ◽  
Test Results ◽  
Knitted Fabrics ◽  
Textile Fabrics ◽  
Yarn Quality ◽  
Computer Aided ◽  
Technological Processing ◽  
Spinning Mill

AbstractDuring the technological processing of staple fibers into yarn drafting, waves are formed which increase the irregularity of yarn linear density and consequently affect the yarn quality. Even a correctly performed technological process does not allow one to completely eliminate yarn faults (thin and thick places, neps) and yarn irregularity. All the yarn imperfections distinctly become apparent in flat textiles made of such a yarn. The quality of the yarn produced should be assessed already in spinning mill, using the results obtained to conclude on the quality of woven or knitted fabrics. Modern metrological laboratories in spinning mills possess Uster Tester 5 (UT5) apparatuses that not only assess the yarn quality with respect to the irregularity of linear density, faults (thin and thick places, neps), or hairiness, but also using the test results obtained make it possible to create a digital image of the predicted appearance of a flat fabric made of the yarn tested. This article presents a computer-aided method of the analysis of the woven and knitted fabric images obtained from UT5 that allows one to assess the significance of particular yarn parameters in the predicted appearance of flat fabrics.

scholarly journals Study on the mechanics of textile thread in woven

2021 ◽  
Vol 304 ◽  
pp. 03035
Author(s):  
Sanovar Khamrayeva ◽  
Dilfuza Kadirova ◽  
Sayidvoris Rakhimkhodjayev
Keyword(s):  
Friction Surface ◽  
Linear Density ◽  
Textile Yarn ◽  
Friction Angle ◽  
Angle Of Friction ◽  
Current State ◽  
Thread Tension ◽  
The Relationship ◽  
Textile Thread

Specialists in the weaving industry are often interested in the question of what tension of the warp and weft threads must be set on the weaving machine to produce a particular fabric. Along with this, they are interested in the question of what is the relationship between these parameters and the structure of the fabric, how much it is necessary to increase or decrease the tension of the warp and weft threads when changing the assortment of fabric. These problems arise because the correct thread tension on weaving machines increases the productivity of equipment and labor, and also improves the quality of the fabrics produced. The current state of the mechanics of a weighty deformable flexible thread on a plane and other forms of guides do not take into account the rigidity of the threads on the friction surface, since this parameter is determined by the type and type of threads, the linear density of the threads and the elastic properties of the threads. Therefore, the article analyzes the work on the mechanics of textile yarn and studies of the tension of the yarns were carried out depending on the radius of friction, angle of friction, coefficient of friction and stiffness of the yarns.

Effect of Elastane Parameters on the Dimensional and Mechanical Properties of Stretchable Denim Fabrics

2020 ◽  
pp. 0887302X2096881
Author(s):  
Muhammad Bilal Qadir ◽  
Zulfiqar Ali ◽  
Ali Afzal ◽  
Muhammad Irfan ◽  
Tanveer Hussain ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Regression Analysis ◽  
Elastic Properties ◽  
Linear Density ◽  
Cotton Yarn ◽  
Performance Properties ◽  
The Core ◽  
Denim Fabric ◽  
And Performance

Denim is one of the most popular casual apparel all over the globe due to a variety of available looks, comfort, and convenience. Comfort and performance properties of stretched denim fabrics depend on the elastane content, which can be controlled through the linear density of elastane and draft-ratio in the core of the cotton yarn. Optimization of both of linear density and draft-ratio of elastane for the better performance of denim fabric were focused upon in this study. The results indicated that the elastane content inside the core of yarn affects the dimensional and mechanical properties of denim fabrics. Regression analysis indicated that elastane linear-density and draft-ratio had an almost equal significance on contraction after washing, stretchability, stiffness, skewness, and bow of fabric. However, the elastic properties of fabric were mainly dependent on the elastane draft-ratio. This study will be an endeavor for industry personnel to achieve more durable and dimensionally stable denim fabrics.

scholarly journals Effect of roving linear density on the quality parameters of 16 Nec 100% cotton yarn

2017 ◽  
Vol 68 (6) ◽  
pp. 435-438
Author(s):  
ABDUL WAQAR RAJPUT ◽  
◽  
USMAN ALI ◽  
AMIR ABBAS ◽  
RANA AMJAD ◽  
...  
Keyword(s):  
Linear Density ◽  
Quality Parameters ◽  
Cotton Yarn

scholarly journals Thermo physiological comfort of single jersey knitted fabric derivatives

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Rajesh Mishra ◽  
Hafsa Jamshaid ◽  
Sheraz Hussain Siddique Yosfani ◽  
Uzair Hussain ◽  
Muhammad Nadeem ◽  
...  
Keyword(s):  
Physical Properties ◽  
Linear Density ◽  
Water Vapor Permeability ◽  
Vapor Permeability ◽  
Cotton Yarn ◽  
Structural Variations ◽  
Knitted Fabrics ◽  
Knit Fabrics ◽  
Physiological Properties ◽  
Single Jersey

AbstractThe main aim of this study is to determine the thermo-physiological comfort properties of single knit fabrics and their derivatives. As the Single Jersey knitted fabrics are the most widely used fabrics in the apparel sector, they have been selected for the analysis purpose. Derivatives of single jersey are developed and compared in order to understand the influence of structural variations. Physical properties e.g. thickness and areal density were evaluated for all knitted fabrics with 100% cotton yarn having three different yarn linear densities and after different stages of relaxation. Various thermo-physiological properties have been studied by changing the combed cotton yarn linear density as well as the structure of single knit fabric. Air permeability, thermal insulation and relative water vapor permeability of the fabrics were observed and investigated under wet relaxed states. It is determined that fabric physical properties are affected by changing yarn linear density and by the dry or wet relaxation stages. The percentage/number of tuck stitches (NTS), location of tuck stitches (LTS) and ratio of tuck to knit stitches (RTKS) have strong influence on physical and thermo-physiological properties of single knit fabrics, even though other knitting parameters remained the same.

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