scholarly journals The performance properties of the yarn and fabrics produced from different types of cotton

2019 ◽  
Vol 70 (05) ◽  
pp. 398-402
Author(s):  
DIRGAR ESRA ◽  
ORAL OKSAN ◽  
OZDIL NILGUN
Keyword(s):  
Mechanical Properties ◽  
Breaking Strength ◽  
Knitted Fabrics ◽  
Performance Properties ◽  
Different Types ◽  
Significance Levels ◽  
Cotton Yarns ◽  
The Relationship ◽  
Study Performance ◽  
Single Jersey

In this study, performance properties of single jersey knitted fabrics made from Aegean cotton, Supima cotton and Giza cotton yarns are investigated. Firstly, Uster parameters and breaking strength of the yarns were examined and then the properties of the fabrics knitted from these yarns were evaluated statistically. The significance levels of the relationship between the measured parameters were determined. Considering the results obtained with the mechanical properties of the fabrics with Uster analysis applied to these yarns, it is seen that the yarns made from Supima and Giza cotton fibers in extra long fiber category have more smooth, less hairiness, contain less neps and the fabrics knitted with these yarns have high mechanical properties.

Textile Performance Properties of Cotton Fabric Treated with Selected Flame-Retarding Finishes

1977 ◽  
Vol 47 (5) ◽  
pp. 365-371 ◽  
Author(s):  
Stanley P. Rowland ◽  
John S. Mason
Keyword(s):  
Cotton Fabric ◽  
Abrasion Resistance ◽  
Breaking Strength ◽  
Superior Performance ◽  
Disodium Hydrogen Phosphate ◽  
Performance Properties ◽  
Different Types ◽  
The Individual ◽  
Medium Weight ◽  
Selection Of

Seven different types of flame-retarding finishes were applied to light-to-medium weight cotton fabric at add-ons appropriate to pass the DOC FF 3–71 test. The finishes studied were based on tetrakis(hydroxymethyl)phosphonium chloride (THPC), neutralized THPC (THPOH), Fyrol 76, and Pyrovatex CP. The specific finishes were: THPOH-NH3, THPOH-urea-trimethylolmelamine, Proban (THPC-urea precondensate)-NH3, THPC-urea-disodium hydrogen phosphate, Fyrol 76, Fyrol 76-N-methylolacrylamide, and Pyrovatex CP-methylolmelamine. Textile performance properties are reported as a function of add-on of each type of finish; strengths and abrasion resistance of the finished fabrics are considered and discussed as a function of resilience. General trends of decreasing strength and abrasion resistance with increasing resilience were observed for these flame-retardant fabrics. Within this trend there is latitude for selection of finishes that will provide superior performance in the individual textile property such as abrasion resistance, breaking strength, and tearing strength.

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

2019 ◽  
Vol 90 (5-6) ◽  
pp. 572-580 ◽  
Author(s):  
Rong Yin ◽  
Xiao-Ming Tao ◽  
Bin-gang Xu
Keyword(s):  
Surface Roughness ◽  
Friction Surface ◽  
Experimental Results ◽  
Material Surface ◽  
Ring Spinning ◽  
Knitted Fabrics ◽  
Yarn Properties ◽  
Cotton Yarns ◽  
The Relationship

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.

Mechanical Properties of the Knitted Fabric of SPF/Modal Blended Yarn

2011 ◽  
Vol 322 ◽  
pp. 444-447 ◽  
Author(s):  
Qing Bin Yang ◽  
Yu Kun Dou
Keyword(s):  
Mechanical Properties ◽  
Soybean Protein ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Blended Yarn ◽  
Protein Fibers ◽  
Protein Fiber ◽  
Bending Length ◽  
The Relationship ◽  
Tearing Strength

In order to understand the influence of the blended ratio of the soybean protein fibers to the properties of blended fabrics, five soybean protein fiber/modal blended fabrics are knitted and tested. By the analysis of the results, the relationship between the properties of the blended fabrics and the blended ratio of the soybean protein fibers are obtained. With the increase of the ratio of the soybean protein fibers, the tensile strength and the elongation of the blended fabrics increase and the tearing strength and bursting strength of the fabric decrease. With the increase of the ratio of soybean protein fibers, the softness increases and the bending length, abrasion resistance of the knitted fabrics decrease.

scholarly journals Porosity of Knitted Fabrics in the Aspect of Air Permeability - Discussion of Selected Assumptions

2017 ◽  
Vol 25 (0) ◽  
pp. 86-91 ◽  
Author(s):  
Marie Havlová ◽  
Jana Špánková
Keyword(s):  
Theoretical Calculations ◽  
Correlation Coefficients ◽  
Air Permeability ◽  
Knitted Fabrics ◽  
Textile Materials ◽  
Yarn Hairiness ◽  
The Relationship ◽  
Very High ◽  
Single Jersey

The main focus of this paper is to look into the relationship between the structure and air permeability of single jersey knitted fabric – especially verifying some basic assumptions. First, if it is possible to neglect the permeability of yarns themselves when we evaluate that of knits, and second, if yarn hairiness plays a significant role when we evaluate the relationship between air permeability and the porosity of knits. Theoretical calculations and experiments which were performed using an analysis of microscopic images of the structure of textile materials are used for the determination of inter-yarn and intra-yarn porosity. The paper aims to show t hat the characteristic dimension of inter-yarn pores is significantly higher than that of intra-yarn pores, and also that the values of inter-yarn porosity measured using image analysis methods with hairiness and after the removal of hairiness are statistically significantly different. The correlation coefficients for the porosity values measured and calculated are very high.

Evaluating the Influence of Fiber Composition and Structure of Knitting Fabrics on Total Hand Value (THV)

2016 ◽  
Vol 848 ◽  
pp. 211-215
Author(s):  
Nareerut Jariyapunya ◽  
Blažena Musilová ◽  
Marie Koldinská
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Surface Properties ◽  
Evaluation System ◽  
Tensile Shear ◽  
Knitted Fabrics ◽  
Fiber Composition ◽  
Composition And Structure ◽  
Different Types ◽  
Shear Bending

This paper presents analytical and experimental procedures to evaluate the influence of knitted fabrics on the total hand value (THV) for women’s winter thin dress. We examined and compared its mechanical properties, such as tensile, shear, bending, compression, surface roughness and friction properties, measured by the Kawabata Evaluation System for Fabrics (KES FB-Auto), of knitted fabrics with different fiber compositions and different types of knitted structures. The obtained results showed that the knitted structures have significantly influenced on the total hand value (THV) whereas the fiber compositions have shown a less effect on (THV). The existing results prove that the evaluation by KES FB-Auto system has been more beneficial for its basic of mechanical and surface properties. Moreover, the results could be analyzed for its new designing patterns for a refined, comfortable stretch fit.

Properties and performances of fabrics made from bio-based and degradable polylactide acid/poly (hydroxybutyrate- co-hydroxyvalerate) (PLA/PHBV) filament yarns

2016 ◽  
Vol 87 (20) ◽  
pp. 2464-2474 ◽  
Author(s):  
XX Huang ◽  
XM Tao ◽  
ZH Zhang ◽  
P Chen
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Polyamide 6 ◽  
Air Permeability ◽  
Filament Yarn ◽  
Thermal And Mechanical Properties ◽  
Knitted Fabrics ◽  
Polylactide Acid ◽  
Finishing Processes ◽  
Single Jersey

This paper reports a comparative experimental study of single jersey knitted fabrics made from a novel bio-based and degradable polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) multi-filament yarn, together with polylactide acid , Cupro, polyethylene terephthalate (PET) and polyamide 6 (PA 6) multi-filament yarns. Their structures, mechanical, thermal and surface properties and performances as well as anti-bacterial behavior are measured and compared. It has been found that the polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) filament yarn has adequate thermal and mechanical properties for normal textile and coloration/finishing processes. The Young's modulus of polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) multi-filament yarn is the lowest among all the candidates investigated except for polyamide 6 (PA 6). The dyed polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) fabric has the highest softness rating among all the fabrics. Single jersey knitted fabrics from the polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) filament yarn have a bursting strength, extension and recovery that satisfy the industrial requirement. In addition, after fully relaxation, the dyed polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) knitted fabrics exhibit an outstanding pilling resistance, favorable snagging property, as well as good air permeability, Qmax and smoother surface. Finally, this study has led to a discovery of excellent anti-bacterial performance of 100% polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) fabrics against staphylococcus aureus, klebsiella pneumoniae, candida albicans according to AATCC100-2012.

Mechanical Properties of Cotton Yarns Mercerized in Liquid Ammonia and Sodium Hydroxide

1976 ◽  
Vol 46 (12) ◽  
pp. 872-879 ◽  
Author(s):  
M. L. Nelson ◽  
C. B. Hassenboehler ◽  
F. R. Andrews ◽  
A. R. Markezich
Keyword(s):  
Mechanical Properties ◽  
Sodium Hydroxide ◽  
Liquid Ammonia ◽  
Breaking Strength ◽  
Continuous Process ◽  
Elongation At Break ◽  
High Tension ◽  
Initial Modulus ◽  
Cotton Yarns ◽  
Length Changes

Yarns spun from high- and low-maturity cottons were mercerized in liquid ammonia in a continuous process, and in liquid ammonia and sodium hydroxide in skein form under various tensions. Both swelling agents produced similar changes in mechanical properties (breaking strength, tenacity, elongation-at-break, and initial modulus) under comparable conditions. Mercerization under high tension increased breaking strength and tenacity and decreased elongation-at-break. Slack mercerization in caustic resulted in elongations-at-break substantially higher than did ammonia treatment. A major difference between reagents was noted during treatment. When skeins were swollen slack and then restretched, much greater force was required to restretch ammonia-swollen skeins, and they could not be stretched as much as those that were caustic-swollen. Measurements of length changes in yarns during swelling, tensioning, and deswelling gave quantitative data to substantiate this observation. Differences in mechanism of swelling are discussed in relation to these findings.

scholarly journals Investigating the Relationship between Knitted Fabric Porosity and Light Permeability

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Manoj Kumar Imrith ◽  
Roshan Unmar ◽  
Satyadev Rosunee
Keyword(s):  
Uv Light ◽  
Knitted Fabric ◽  
Regression Equations ◽  
Protective Capacity ◽  
Knitted Fabrics ◽  
Stitch Density ◽  
Stitch Length ◽  
Pass Through ◽  
The Relationship ◽  
Single Jersey

The present paper attempts to investigate the relationship between fabric porosity and light permeability of the knitted structures, namely, rib 1 × 1, rib 2 × 1, single jersey, and plain structure. The rationale is that pores (in a fabric) would allow light to pass through but at the same time provide a quantitative assessment of the UV light permeability of the knitted fabrics, an indication of the protective capacity of the fabrics against UV radiation. The porosity and corresponding light permeability of the knitted structures were measured after varying the following knitting parameters: stitch length, stitch density, and tension on the machine. Furthermore, this work has enabled the development of an apparatus that can measure the amount of light transmitted through the knitted fabrics. The results generated by the equipment were validated through the use of regression equations.

scholarly journals Tensile Properties of Single Jersey and 1×1 Rib Knitted Fabrics Made from 100% Cotton and Cotton/Lycra Yarns

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Dereje Berihun Sitotaw ◽  
Biruk Fentahun Adamu
Keyword(s):  
Tensile Strength ◽  
Relative Humidity ◽  
Tensile Properties ◽  
Cotton Yarn ◽  
Breaking Force ◽  
Knitted Fabrics ◽  
Blended Yarn ◽  
Cotton Yarns ◽  
High Elongation ◽  
Single Jersey

The tensile properties such as tensile strength which is measured as breaking force in Newton (N) and elongation percent (%) at break of single jersey and 1×1 rib (knitted with full needles) knitted fabrics made from 100% cotton and cotton/Lycra yarns (5% Lycra yarn content in 95% combed cotton yarn) are investigated in this research. The sample fabrics are conditioned for 24 hours at20±1°C temperature and65±2% relative humidity before testing. Ten specimens (five for lengthwise and five for widthwise) have been taken from each of the two knitted structures, those made from 100% cotton and cotton/Lycra (at 95/5 percent ratio blend) yarns. According to the discussion and as found from the investigations, the tensile properties of single jersey and 1×1 rib knitted fabrics made from 100% cotton and cotton/Lycra yarns are significantly different from each other and both of the knitted fabrics have high elongation percent at break with cotton/Lycra blend yarns as compared to 100% cotton yarn. Knitted fabrics made from cotton/Lycra blended yarn have low breaking force and high elongation percent at break relative to knitted fabrics made from 100% cotton yarns.

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