Performance Evaluation of Silicone-polyurethane Finished Jute / Cotton Union Fabric for Apparel End Uses

2014 ◽  
Vol 18 (3) ◽  
pp. 69-80 ◽  
Author(s):  
R. Prathiba Devi ◽  
L. Sasikala ◽  
R. Rathinamoorthy ◽  
Dr. J. Jeyakodi Moses
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Performance Evaluation ◽  
Cotton Fabric ◽  
Evaluation System ◽  
Shear Rigidity ◽  
Fabric Thickness ◽  
Low Stress Mechanical Properties ◽  
Tensile Surface ◽  
End Uses

The effect of enzyme treatments with consecutive softening by the use of silicone – polyurethane on low stress mechanical properties and hand values of jute/cotton union fabric have been studied on the Kawabata evaluation system (KES). The results indicate that the enzyme treated, silicone – polyurethane finished fabric has significant (p<0.05) improvement in tensile resilience, fabric extensibility, compressional resistance and friction co efficient, whereas fabric thickness, linearity of tensile, surface roughness, bending and shear rigidity and their hysteresis are reduced compared to the untreated fabric. Under the Kawabata system, the Koshi (stiffness) value of the finished fabric is decreased by 1-9%. Numeri (smoothness) and Fukurami (fullness and softness) values are increased by 11-20% and 3-4% respectively compared to the untreated fabric. The variation in primary hand values are significant (p<0.05). The total hand value (THV) is also increased by 6% and 44% for the case of 40/60 and 50/50 jute/cotton union fabrics, respectively. This study confirms the possible usage of jute/cotton fabric in the apparel segment.

The effect of plasma treatment and tightness factor on the low-stress mechanical properties of single jersey knitted wool fabrics

2016 ◽  
Vol 88 (5) ◽  
pp. 499-509 ◽  
Author(s):  
Saeed Shaikhzadeh Najar ◽  
Xungai Wang ◽  
Maryam Naebe
Keyword(s):  
Mechanical Properties ◽  
Plasma Treatment ◽  
Evaluation System ◽  
Atmospheric Pressure Plasma ◽  
Surface Friction ◽  
P Value ◽  
Shear Rigidity ◽  
Bending Rigidity ◽  
Wool Fabrics ◽  
Low Stress Mechanical Properties

The effects of atmospheric pressure plasma treatment and the tightness factor on the low-stress mechanical properties of weft-knitted wool fabrics were evaluated using the Kawabata Evaluation System for Fabric (KES-F). The statistical analysis showed that the plasma treatment and the tightness factor had significant effects on the fabric low-stress mechanical properties ( p-value < 0.05). Plasma-treated fabrics showed significantly higher bending and shear rigidity and hysteresis, compression energy, thickness, compressibility, surface friction and lower compression resilience and geometrical roughness values compared with untreated fabrics. An increase in the fabric tightness factor significantly increased fabric thickness, bending and shear rigidity and hysteresis, and decreased tensile extensibility and geometrical roughness. The relationship between primary handle attributes evaluated by Wool HandleMeter and KES-F mechanical properties was also investigated. The results confirmed a highly linear correlation between these two sets of data, where rough/smooth and hard/soft attributes evaluated by the Wool HandleMeter had the highest correlation with bending rigidity, shear properties and bending hysteresis, as measured by the KES-F.

A statistical analysis of low-stress mechanical properties of warp-knitted fabrics

2016 ◽  
Vol 88 (4) ◽  
pp. 467-479 ◽  
Author(s):  
Ka-yan Yim ◽  
Chi-wai Kan
Keyword(s):  
Mechanical Properties ◽  
Evaluation System ◽  
Natural Fibers ◽  
Physical Parameters ◽  
Knitted Fabrics ◽  
Fabric Hand ◽  
Low Stress Mechanical Properties ◽  
Fabric Weight ◽  
Fabric Structures ◽  
Selection Of

Fabric hand is an indispensable characteristic for the selection of fabric and product development and the buying consideration for manufacturers and consumers. However, there is little comprehensive work on the hand feel property of warp-knitted fabrics due to the mainstream natural fibers (cotton, wool and silk) and other fabric structures (woven, weft-knitted and nonwoven). The increasing potential for the wide variety of applications and development of warp-knitted fabrics is not only because its fabric hand gives better determination for fabric marketing, but also because it provides extensive scope for fabric performance and appearance. This paper reports an experimental study on the integrated fabric hand behavior of a series of warp-knitted fabrics made for various apparel applications, such as sportswear, lingerie and leisure wear. These 105 fabrics were produced by varying different physical parameters, including fabric weight and fabric thickness. The Kawabata Evaluation System for Fabric (KES-F) was employed to obtain the fabric hand properties (primary hand value and total hand value) related with stiffness, smoothness and softness. All low-stress mechanical properties and fabric hand values from the testing results were used to verify the applicability of the KES-F on warp-knitted fabrics and to analyze the relationships of fabric parameters and hand characteristics. The results indicate that the KES-F is an appropriate tool to measure the hand attributes of warp-knitted samples, and moderate correlations between physical properties and mechanical behavior were found.

Investigating the Effects of Different Repellent Agents on the Performance of Novel Polyester/Wool Blended Fabrics

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000 ◽  
Author(s):  
Akbar Khoddami ◽  
Soheil Bazanjani ◽  
R.H. Gong
Keyword(s):  
Mechanical Properties ◽  
Shear Rigidity ◽  
Dry Cleaning ◽  
Before And After ◽  
Low Stress Mechanical Properties ◽  
Finishing Agent ◽  
Fluorocarbon Chain ◽  
And Performance ◽  
Liquid Repellency ◽  
Original Configuration

The effects of fluorocarbon finishing of hollow and solid polyester/wool were studied in order to establish the processing behavior and performance characteristics of the treated fabrics. Polyester/wool blended fabrics before and after dyeing were treated with different fluorochemicals; their liquid repellency after washing and dry cleaning was evaluated. Fabric mechanical properties were compared by measuring tensile strength and low stress mechanical properties. The results indicate that the finishing agent formulation has a great effect on the fabrics repellent properties. Studying the fluorocarbon chain re-orientation during laundering and dry cleaning revealed that each fluorocarbon has different ability to retrieve its original configuration via air drying with subsequent necessity of hot pressing to reach acceptable repellency. Also, the effect of hollow fibers on fabric mechanical properties is practically insignificant. The low stress mechanical properties indicate only relatively small differences among the samples. However, finishing with all chemicals and methods resulted in higher friction between the fibers and yarns, and in increased bending and shear rigidity, and shear hysteresis.

Effect of Nano-TiO2 Antibacterial Treatment on Mechanical Properties of Cotton Fabric

2011 ◽  
Vol 287-290 ◽  
pp. 2557-2560
Author(s):  
Yan Ping Jin ◽  
Zai Fa Pan ◽  
Wu Sheng Li ◽  
Min Zhi Chen ◽  
Feng Yuan Zou
Keyword(s):  
Mechanical Properties ◽  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Antibacterial Treatment ◽  
Structural Parameter ◽  
Normal Range ◽  
Fast System ◽  
Weft Direction ◽  
Density Surface ◽  
Low Stress Mechanical Properties

In order to have a better understanding of mechanical properties of the Nano-TiO2 antibacterial cotton fabric, FAST system was used to measure the compression, bending, shearing, extension and other low stress mechanical properties of cotton fabrics with and without treated by Nano-TiO2 antibacterial. The structural parameter and dimensional stability are also tested. Results indicated that weight, weft density, surface thickness, bending, formability, shearing and relaxation shrinkage of weft direction are all increased slightly, while shearing at warp 45°, relaxation shrinkage of warp direction and hygral expansion decreased. As a whole, most of the mechanical properties are still within the normal range and some is even better.

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.

Analysis and improvement of tactile comfort and low-stress mechanical properties of denim fabrics

2019 ◽  
Vol 89 (23-24) ◽  
pp. 4842-4857 ◽  
Author(s):  
Nazli Uren ◽  
Ayse Okur
Keyword(s):  
Mechanical Properties ◽  
Sensory Evaluation ◽  
Raw Material ◽  
Shear Rigidity ◽  
Important Criterion ◽  
Bending Rigidity ◽  
Blend Ratio ◽  
Low Stress Mechanical Properties ◽  
Sensory Tests ◽  
Stone Washing

Despite the fact that the tactile comfort of a garment is an important criterion that determines consumers' preferences and has been investigated for almost a century by many researchers, the number of studies regarding tactile comfort of denim fabrics is limited. The aim of this study is to propose suggestions to enhance the tactile comfort of denim fabrics and investigate their efficiency in terms of low-stress mechanical properties and sensory evaluation results. For this purpose, the compressibility, extension ability, bending rigidity and shear rigidity of 51 denim fabrics were experimentally determined. Meanwhile, stiffness–softness, roughness–smoothness and tactile comfort scores were evaluated by consumers and specialists via sensory tests. The effects of the raw material, blend ratio, weaving parameters and washing processes were statistically investigated. Low-stress mechanical properties, particularly biaxial and multiaxial ones, were found to be highly related to the perceived tactile comfort. Statistical investigations highlighted that stone washing is the most effective method to improve the tactile comfort. Nonetheless, the effect of enzyme washing was relatively small. It was observed that the suggested weaving parameters provide a significant improvement in fabric properties. Increasing the ratio of viscose content in polyester/viscose blend weft yarns was quite effective as well.

Prediction of Certain Low Stress Mechanical Properties of Knitted Fabrics from Their Structural Parameters

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000
Author(s):  
R. Varadaraju ◽  
J. Srinivasan
Keyword(s):  
Mechanical Properties ◽  
Structural Parameters ◽  
Tensile Elongation ◽  
Shear Rigidity ◽  
Bending Rigidity ◽  
Knitted Fabrics ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Low Stress Mechanical Properties ◽  
Fabric Shear

Knitted fabrics are preferred as clothing materials because of of their outstanding comfort quality. 16 plain knitted fabric samples were produced from 4 combed ring spun yarn of linear densities 29.5 Tex, 23.6, Tex 19.7 Tex and 17.4 Tex and 4 different stitch lengths from each yarn linear density were selected for this study. The fabric samples were relaxed and then tested for tensile shear and bending properties using Kawabata tester's. KES- FB1and KES- FB2. The effect of various fabric structural parameters on fabric low stress mechanical properties was studied. The fabric shear rigidity, bending rigidity, shear hysteresis, bending hysteresis, and tensile linearity were positively correlated with the fabric GSM, thickness, and tightness factor and negatively correlated with fabric linear Stitch modulus, areal stitch modulus, volume stitch modulus, and porosity. The fabric tensile elongation was positively correlated with the fabric linear stitch modulus, areal stitch modulus, volume Stitch modulus, and porosity and negatively correlated with the fabric GSM, thickness, and fabric tightness factor. The above properties were higher in course direction than in wale direction. Separate prediction equations were developed for fabric low stress mechanical properties from Tightness factor, Volume Stitch modulus, and Porosity

scholarly journals Effect of Pre-Treatment on the Smoothness Behaviour of Cotton Fabric

2019 ◽  
Vol 27 (5(137)) ◽  
pp. 70-79
Author(s):  
Nidhi Sisodia ◽  
M.S. Parmar ◽  
Saurbh Jain
Keyword(s):  
Image Processing ◽  
Surface Roughness ◽  
Digital Image Processing ◽  
Cotton Fabric ◽  
Digital Image ◽  
Evaluation System ◽  
Pre Treatment ◽  
Recovery Angle ◽  
Bending Length ◽  
Fabric Surface

Before dyeing, woven cotton fabrics have been passed through different pre-treatments like desizing, scouring, bleaching and mercerising to enhance quality. In every treatment cotton fabric is treated with different chemicals and mechanical processes. After these treatments, the feel of the fabric has been changed. The change in feel or in terms of the hand value of treated fabrics were analysed by determining the bending length, crease recovery angle, SEM, FTIR, surface roughness and smoothness properties. Other physical properties viz. the tear and tensile strength were also evaluated. Fabric surface roughness and smoothness were determined using the Kawabata Evaluation System (KES) and digital image processing method. Using MATLAB software, digital image processing techniques were used to evaluate the roughness index. The study revealed that the pretreatment process alters the fabric surface. Statistical analysis (ANOVA) was carried out using SPSS software in order to establish the relationship between the pre-treatment process effect on the bending length, smoothness and crease recovery angle.

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