scholarly journals Frictional Behavior of Plain Woven Fabrics Constructed from Polyester and Cotton Yarns in Different Environmental Conditions

2012 ◽  
Vol 7 (2) ◽  
pp. 155892501200700 ◽  
Author(s):  
Ali Arshi ◽  
AliAsghar Asgharian Jeddi ◽  
AliAsghar Katbab
Keyword(s):  
Relative Humidity ◽  
Environmental Conditions ◽  
Fiber Material ◽  
Cotton Fabrics ◽  
Woven Fabrics ◽  
Effect Of Temperature ◽  
Warp Yarn ◽  
Polyester Fabrics ◽  
Significant Difference ◽  
Cotton Yarns

Frictional characteristics of woven fabrics can determine smoothness and softness values of the fabric. Moreover different environmental conditions can leads to change the properties of the weaves. In this paper, we studied the effect of temperature and relative humidity variations on the frictional properties of cotton and polyester fabrics. Plain woven fabrics were produced with polyester warp yarn and two different weft yarns (cotton and polyester). Each fabric was examined in various temperatures and relative humilities; then the frictional forces measurement was carried out on the fabrics in warp over warp direction. The results show that there is a statistically significant difference between the frictional parameters. This difference relates to the type of fiber material (weft yarns), temperature, and relative humidity. In addition, the data reveal that cotton fabrics have more static and kinetic forces than polyester fabrics in all environmental conditions. Moreover, polyester fabrics exposed to a temperature of nearly 45°C and 100% RH, have the maximum smoothness. The highest roughness values for cotton fabrics were under conditions of 45°C and 20% RH.

Study on the Mechanism of Woven Cotton Fabric during Steam Ironing

2015 ◽  
Vol 671 ◽  
pp. 179-185 ◽  
Author(s):  
Fan Wu ◽  
Shuai Tong Liang ◽  
Xue Mei Ding
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Physical And Mechanical Properties ◽  
Cotton Fabrics ◽  
Temperature Treatment ◽  
Woven Fabrics ◽  
Effect Of Temperature ◽  
High Temperature Treatment ◽  
Recovery Rates ◽  
Basic Parameters

Cotton fabrics are very popular textile products to consumers due to their soft hand and comfortable wearing performance. However, the severe wrinkles on cotton fabrics will frequently happen after washing or wearing. As the growth of the market and demand of consumers, the sales of the steam ironing machine which can remove wrinkles to some extent is getting better. At present, the research is inadequate on the wrinkling mechanism during steam ironing. Therefore, in this paper, we aimed to investigate how cotton woven fabrics’ performance influences on the smoothness appearance after steam ironing. To further analyze wrinkling mechanism, fabrics’ wrinkle recovery rates which comprehensive characterize the physical and mechanical properties were tested with PhabrOmeter, including wrinkle recovery rates at normal temperature and after high temperature treatment. Then, the effect of temperature to fabrics’ wrinkle recovery rates and its relationship with fabrics’ smoothness appearance after ironing were studied. The results indicate that there are no significant correlations between the fabric basic parameters with smoothness appearance after ironing. The effect of temperature during ironing can improve the wrinkle recovery rates about 6%-21%. And no significant correlation is showed between smoothness appearance after ironing and wrinkle recovery rates. Keywords: Steam Ironing; mechanism; fabric parameters; wrinkle recovery rate.

scholarly journals Development of Models to Predict Tensile Strength of Cotton Woven Fabrics

2011 ◽  
Vol 6 (4) ◽  
pp. 155892501100600 ◽  
Author(s):  
Zulfiqar Ali Malik ◽  
Mumtaz Hasan Malik ◽  
Tanveer Hussain ◽  
Farooq Ahmed Arain
Keyword(s):  
Tensile Strength ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Linear Regression Models ◽  
Warp Yarn ◽  
Yarn Strength ◽  
Fabric Density ◽  
Cotton Yarns ◽  
Fabric Strength

Tensile strength has been accepted as one of the most important performance attributes of woven textiles. In this work, multiple linear regression models are developed by using empirical data for the prediction of woven fabric tensile strength manufactured from cotton yarns. Tensile strength of warp & weft yarns, warp & weft fabric density, and weave design were used as input parameters to determine warp- and weft-way tensile strength of the woven fabrics. The developed models are able to predict the fabric strength with very good accuracy. Warp yarn strength and ends per 25 mm are found to be the most dominant factors influencing fabric strength in warp direction while weft yarn strength and picks per 25 mm are most vital in weft direction.

scholarly journals To study the influence of mercerizing variation on the absorbency and whiteness test for the cotton woven fabrics

2020 ◽  
Vol 6 (2) ◽  
Keyword(s):  
Research Work ◽  
Cotton Fabrics ◽  
Degree Of Polymerization ◽  
Woven Fabrics ◽  
Dye Uptake ◽  
Whiteness Index ◽  
The Core ◽  
Cotton Yarns ◽  
Different Temperatures ◽  
Microstructure Morphology

The mercerization of cotton fabric is common practice in the preparation process that enhances dye uptake and facilitates uniform dyeing in addition to improving dimensional stability, strength, and luster. Changes in microstructure, morphology, and conformation of the cellulose chains also occur during mercerization. The extent of the changes that occur depends on the processing time, caustic concentration, temperature, degree of polymerization. The main objective of this research work is to analyze the whiteness index, absorbency test of the different fabric samples made of different cotton yarns. The count of these yarns was as under 32Ne, 35Ne, 40Ne, 45Ne, 50. These fabrics were treated at different temperatures of 20 30, 40, 50, 65˚C. It was found that mercerized cotton fabrics at low-temperature Mercerize is done only on the surface of the fabric but as the temperature is increased the mercerization & done on the core of the fabric. Absorbency is increased as the temperature is increased. Whiteness index is decreased as the temperature is increased.

scholarly journals Activity Monitoring of Olive Fruit Fly, Bactrocera oleae (Rossi) Males, and Effect of Temperature and Relative Humidity, at Al Quneitra Governorate, Southern Syria

2021 ◽  
Vol 39 (2) ◽  
pp. 116-125
Author(s):  
Nesreen Diab ◽  
◽  
Ibrahim Al-Jouri ◽  
Mohamad Dawoud ◽  
Ammar Jalloud ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Seasonal Abundance ◽  
Effect Of Temperature ◽  
Activity Period ◽  
Olive Fruit Fly ◽  
Pheromone Traps ◽  
Olive Fruit ◽  
Significant Difference

This study was carried out in Al Quneitra governorate, Syria during 2017 and 2018 seasons with the aim of monitoring the activity of olive fruit fly Bactrocera oleae (Rossi) (Diptera: Tephritidae) males, in three locations of similar altitude (945-989 m above sea level), in addition to evaluating the effect of temperature and relative humidity on males activity using pheromone traps. The results obtained showed that olive fruit fly male adults activity began in the last week of May 2017 season and in the 3rd week of May 2018 season. Male adult's population reached a peak in the 4 th week of September, with an average of 126.43±33.70 males/trap in 2017 season, whereas their peak in 2018 season wasreached in mid-September with an average of 205.2±15.51 males/trap. Number of activity periods for males differed according to the season of study, and number of activity periods was 3 in 2017 and 4 in 2018. The duration of the activity period ranged from 4 to 11 weeks. The results obtained also showed a weak correlation effect of temperature and relative humidity on males activity during the two seasons, and its value was +0.16, +0.048, respectively. The monthly abundance of males differed during one season. Statistical analysis showed that the highest monthly abundance in 2017 season was in October, with an average of 192.07±14.94 males/trap with a significant difference in relation to the rest of the months, whereas in 2018 season it reached the highest monthly abundance in September, with an average of 420.33±15.18 males/trap, which significantly outperformed the rest of the months. Seasonal abundance of 2018 was significantly higher than in 2017. Keywords: Olive fruit fly, Bactrocera oleae, males’ activity, pheromone traps, temperature, relative humidity, Al Quneitra

scholarly journals Effect of Fabric Layers on the Relationship between Fabric Constructional Parameters and Percentage Reflectance Values of Polyester Fabrics

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Mine Akgun ◽  
Behcet Becerir ◽  
Halil Rifat Alpay
Keyword(s):  
Light Trap ◽  
Woven Fabrics ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Reflectance Measurement ◽  
Polyester Fabrics ◽  
Yarn Properties ◽  
Fabric Layer ◽  
Weave Pattern ◽  
The Relationship

This paper focused on the assessment of the relation between constructional properties and percentage reflectance values of fabrics woven from polyester yarns through fabric layer numbers. Reflectance measurements were conducted on pretreated but undyed fabric samples at five different fabric layers. Twelve polyester fabrics having different constructional parameters were used and fabrics differed from each other by their weft yarn densities, weave patterns, and weft yarn filament fineness. Warp yarn properties (type, count, and density) were the same at all the fabrics. Percentage reflectance values of the fabrics changed according to yarn density, weave pattern, and filament fineness in accordance with fabric layer numbers during reflectance measurement. Percentage reflectance values gradually increased as fabric layer numbers increased. The highest reflectance values were obtained at 16 layers of fabric. The effects of single constructional parameters on reflectance values disappeared as fabric layer numbers increased. Percentage reflectance values were analyzed according to ANOVA (Analysis of Variance) and statistical results revealed the cross relations obtained. Light-trap phenomenon was discussed according to reflectance characteristics of woven fabrics.

Thermo-physiological comfort of half bleached woven fabrics made from different cotton yarns parameters

2021 ◽  
pp. 1-16
Author(s):  
Desalegn Atalie ◽  
Rotich Gideon ◽  
Getnet Melesse ◽  
Eyasu Ferede ◽  
Frezer Getnet ◽  
...  
Keyword(s):  
Woven Fabrics ◽  
Cotton Yarns

Investigation of the mechanical and forming behaviour of 3D warp interlock carbon woven fabrics for complex shape of composite material

2021 ◽  
pp. 152808372098410
Author(s):  
Mehmet Korkmaz ◽  
Ayşe Okur ◽  
Ahmad Rashed Labanieh ◽  
François Boussu
Keyword(s):  
Composite Materials ◽  
Complex Shape ◽  
Impact Damage ◽  
Woven Fabrics ◽  
Forming Process ◽  
Warp Yarn ◽  
Delamination Resistance ◽  
Fabric Architecture ◽  
Weave Pattern ◽  
Carbon Fabrics

Composite materials which are reinforced with 3D warp interlock fabrics have outstanding mechanical properties such as higher delamination resistance, ballistic damage resistance and impact damage tolerance by means of their improved structural properties. Textile reinforcements are exposed to large deformations in the production stage of composite materials which have complex shape. Although good formability properties of 3D warp interlock fabrics in forming process were already proven by recent studies, further information is needed to elucidate forming behaviours of multi-layer fabrics which is produced with high stiffness yarns like carbon. In this study, 3D warp interlock carbon fabrics were produced on a prototype weaving loom and the same carbon yarn was used in two fabric directions with equal number of yarn densities. Fabrics were differentiated with regard to the presence of stuffer warp yarn, weave pattern and parameters of binding warp yarn which are angle and depth. Therefore, the effect of fabric architecture on the mechanical and formability properties of 3D warp interlock carbon fabrics could be clarified. Three different breaking behaviours of fabrics were detected and they were correlated with crimp percentages of yarn groups. In addition, the bending and shear deformations were analysed in view of parameters of fabric architectures. Two distinct forming behaviours of fabrics were determined according to the distribution of deformation areas on fabrics. Moreover, the optimal structure was identified for forming process considering the fabric architecture.

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