Effects of Laundering on Moisture Management and Air Permeability of Different Chitosan Treated Nylon 6,6 Elastane Fabrics Using EDTA and Triton X-100

2021 ◽  
Vol 58 (2) ◽  
pp. 97-105
Author(s):  
Nilüfer Yıldız Varan ◽  
Yavuz Çaydamlı
Keyword(s):  
Photoelectron Spectroscopy ◽  
Ethylenediaminetetraacetic Acid ◽  
Lower Layer ◽  
Air Permeability ◽  
Complexing Agent ◽  
Three Solutions ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Nylon 6,6 ◽  
Triton X

Abstract This study investigates the effect of washing fabrics (nylon 6.6 powernet knitted fabrics with 30% spandex) treated with chitosan on their moisture management and air permeability. The knitted fabrics were treated with three different solutions of chitosan and dimethylol dihydroxyethylene urea (DMDHEU); in addition to chitosan and DMDHEU, one solution contained the complexing agent ethylenediaminetetraacetic acid (EDTA) and the other contained the nonionic surfactant and penetration agent octylphenol ethoxylate. The three solutions were compared in terms of their effect on moisture management and air permeability properties. Nylon fabrics treated and washed with these solutions were characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Nylon fabrics treated with chitosan and DMDHEU showed the potential to transfer liquid moisture to the lower layer and keep the layer next to the skin dry after 20 washes.

scholarly journals The Efficiency of Non-Flammable Functional Underwear

2014 ◽  
Vol 14 (3) ◽  
pp. 174-178 ◽  
Author(s):  
Viera Glombikova ◽  
Petra Komarkova
Keyword(s):  
Thermal Resistance ◽  
Moisture Transport ◽  
Protective Clothing ◽  
Air Permeability ◽  
Extreme Conditions ◽  
Flame Resistance ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Moisture Management ◽  
Physiological Properties

Abstract This study evaluates the efficiency of non-flammable functional underwear used as a secondary heat barrier in extreme conditions. Five groups of knitted fabrics were analysed for flame resistance and selected physiological properties (water vapour permeability, air permeability, thermal resistance and liquid moisture transport by moisture management transport). The results indicated similar levels of flame resistance for the materials tested but show important differences in terms of physiological characteristics, namely liquid moisture transport, which influences the safety and comfort of protective clothing.

Some Studies on the Moisture Management Properties of Cotton and Bamboo Yarn Knitted Fabrics

2015 ◽  
Vol 1134 ◽  
pp. 225-230 ◽  
Author(s):  
Nadhirah Mohd Amran ◽  
Mohd Rozi Ahmad ◽  
Mohamad Faizul Yahya ◽  
Amily Fikry ◽  
Ahmad Munir Che Muhamed ◽  
...  
Keyword(s):  
Water Vapour ◽  
Air Permeability ◽  
Water Vapour Permeability ◽  
Water Penetration ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Spreading Area ◽  
Moisture Management ◽  
Management Capability ◽  
Cotton Yarns

This paper reports on the moisture management properties of fabrics made from yarns of 100% cotton, 100% bamboo and combination of bamboo and cotton yarns. The fabrics were knitted on a circular knitting machine and scoured before measuring them for moisture management capability, air permeability and water vapour permeability. The results showed that all fabrics have good overall moisture management capability which classified them as water penetration fabric with small spreading area. The fabric consisting of the combination of bamboo and cotton yarns of 83/17 ratio gave the highest air and water vapour permeability.

scholarly journals Comprehensive Assessment of the Properties of Cotton Single Jersey Knitted Fabrics Produced From Different Lycra States

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Amany Khalil ◽  
Abdelmonem Fouda ◽  
Pavla Těšinová ◽  
Ahmed S. Eldeeb
Keyword(s):  
Cotton Fabric ◽  
Elastic Recovery ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Vapor Permeability ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Fabric Sample ◽  
Dual Core ◽  
Single Jersey

AbstractThis research aims to evaluate the properties of cotton single jersey knitted fabrics (SJKF) produced from cotton/spandex yarns at different Lycra states. So, four different SJKF were produced, namely 100% cotton, cotton with additional Lycra (full-platted), core, and dual-core-spun (DCS) yarns with the same loop length. The thermal comfort properties, fabric recovery, total hand value (THV), moisture management parameters, and air permeability were measured. The experimental results showed that the use of DCS yarns in the SJKF improves the fabric elastic recovery by 100%. The obtained values of air permeability, THV, and overall moisture management capacity of stretched SJKF are lower than 100% cotton fabric sample. Thermal absorptivity of core and dual-core samples increased by 27% and the water vapor permeability decreased by 18% compared to 100% cotton fabric sample.

scholarly journals Effect of Loop Length On Thermal Comfort Properties of Mesh Knitted Fabrics

2020 ◽  
Vol 27 (120) ◽  
pp. 243-251
Author(s):  
Esra TAŞTAN ÖZKAN ◽  
Binnaz KAPLANGİRAY
Keyword(s):  
Thermal Resistance ◽  
Air Permeability ◽  
Test Methods ◽  
Standard Test ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Mesh Structure ◽  
Polyester Mesh ◽  
Moisture Management ◽  
Thermal Absorptivity

In this study, it is aimed to change the loop length of knitted fabrics with a mesh structure and to investigate the effect of loop length differences on thermal and moisture transmission properties. For this purpose, six fabrics with different loop lengths were produced in two different knittings and yarn types. Thermal conductivity, thermal absorptivity, thermal resistance, air permeability and moisture management properties of these fabrics were measured according to standard test methods. The results showed that as the yarn gets finer and loop length increases, the air permeability values will increase. It was observed that as the loop length increase, the overall moisture management capacity (OMMC) and thermal absorptivity of the fabrics will decrease. The thermal resistance values of two ply textured polyester mesh knitted fabrics decreased with increasing density and the highest loop length two ply textured polyester mesh knitted fabric showed the highest thermal resistance value.

Thermal comfort properties of bamboo tencel knitted fabrics

2016 ◽  
Vol 28 (4) ◽  
pp. 420-428 ◽  
Author(s):  
Govindan Karthikeyan ◽  
Govind Nalankilli ◽  
O L Shanmugasundaram ◽  
Chidambaram Prakash
Keyword(s):  
Thermal Comfort ◽  
Water Vapour ◽  
Air Permeability ◽  
Water Vapour Permeability ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Content Type ◽  
Moisture Management ◽  
Thermal Comfort Properties ◽  
Single Jersey

Purpose – The purpose of this paper is to present the thermal comfort properties of single jersey knitted fabric structures made from bamboo, tencel and bamboo-tencel blended yarns. Design/methodology/approach – Bamboo, tencel fibre and blends of the two fibres were spun into yarns of identical linear density (30s Ne). Each of the blended yarns so produced was converted to single jersey knitted fabrics with loose, medium and tight structures. Findings – An increase in tencel fibre in the fabric had led to a reduction in fabric thickness and GSM. Air permeability and water-vapour permeability also increased with increase in tencel fibre content. The anticipated increase in air permeability and relative water vapour permeability with increase in stitch length was observed. The thermal conductivity of the fabrics was generally found to increase with increase in the proportion of bamboo. Research limitations/implications – It is clear from the foregoing that, although a considerable amount of work has been done on bamboo blends and their properties, still there are many gaps existing in the literature, in particular, on thermal comfort, moisture management and spreading characteristics. Thus the manuscript addresses these issues and provides valuable information on the comfort characteristics of the blended fabrics for the first time. In the evolution of this manuscript, it became apparent that a considerable amount of work was needed to fill up the gaps existing in the literature and hence this work which deals with an investigation of the blend yarn properties and comfort properties of knitted fabrics was taken up. Originality/value – This research work is focused on the thermal comfort parameters of knitted fabrics made from 100 per cent tencel yarn, 100 per cent bamboo yarn and tencel/bamboo blended yarns of different blend ratios.

scholarly journals Comparative Analysis of Thermophysiological Comfort-Related Properties of Elastic Knitted Fabrics for Cycling Sportswear

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4024
Author(s):  
Yetanawork Teyeme ◽  
Benny Malengier ◽  
Tamrat Tesfaye ◽  
Simona Vasile ◽  
Lieva Van Langenhove
Keyword(s):  
Thermal Conductivity ◽  
Specific Activity ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Vapor Permeability ◽  
Activity Levels ◽  
Knitted Fabrics ◽  
Drying Time ◽  
Moisture Management ◽  
Fabric Weight

This research focused on the investigation of the thermophysiological comfort properties of four selected knitted fabrics of different fiber blend ratios suitable for cycling wear. Comfort-related properties of the fabrics were determined and compared including air permeability, moisture management properties, drying time, thermal conductivity, and water vapor permeability. For those comfort properties of the fabric to be correlated, fabric structural properties, fabric density, fabric weight, and fabric thickness have been considered. Suited fabrics should have good air permeability, thermal conductivity, moisture management properties, and a short drying time. According to the measurement results, the fabric polyamide/elasane (58/42 PA6.6/EL) with good air permeability, thermal conductivity, moisture management properties, and short drying time was more suited for summer cycling clothing. Furthermore, this paper provides a new understanding of considerations that are needed for several end uses involving specific activity levels.

scholarly journals EFFECTSOFINTERMINGLING PRESSURE LEVELON PROPERTIES OF POLYESTER KNITTED FABRICS

2019 ◽  
Vol 2019 ◽  
pp. 136-139
Author(s):  
Gonca BALCI KILIC
Keyword(s):  
Structural Parameters ◽  
Natural Fibers ◽  
Air Permeability ◽  
Pressure Level ◽  
Unit Weight ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Management Capability ◽  
Continuous Filament ◽  
Fabric Surface

The texturing process is a method to imparts the look and feel of synthetic yarns to yarns made from natural fibers and give it even more superior properties. Texturing process provides bulkiness, extra stretch, porosity, better handle, air permeability and comfort properties to flat continuous filament yarns. Intermingling is an optional process which is made to hold together filaments in the structure of textured yarns. Intermingling pressure level is one of the most significant factors that affect properties of yarns and fabrics produced from these yarns. This study examined the effects of intermingling pressure level (not intermingled, 0.2 bar, 0.5 bar, 0.8 bar and 1.0 bar) on properties of fabrics made of multifilament yarns. For this purpose, physical, visual, surface and comfort properties of polyester knitted fabrics were measured. Within the context of the study, porosity and visual properties were analyzed with image analysis techniques. Results showed that, intermingling pressure level has statistically significant effects on the properties of fabrics such as unit weight, thickness, air permeability and porosity. However, intermingling pressure level has no effect on fabric roughness and overall moisture management capability (OMMC). Although all structural parameters are the same for the yarns and the fabrics, intermingling pressure level has also crucial effect on fabric surface appearances.

scholarly journals Thermal and breathability management of microencapsulated phase change material (MPCM) incorporated jute fabric

2021 ◽  
Vol 16 ◽  
pp. 155892502110295
Author(s):  
Abdus Shahid ◽  
Solaiman Miah ◽  
Abdur Rahim
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Fluctuation ◽  
Water Repellency ◽  
Air Permeability ◽  
Jute Fabric ◽  
Moisture Management ◽  
Microencapsulated Phase Change Material ◽  
Fabric Surface ◽  
Change Material

Jute bags are widely used to carry food grains and other materials that may be prone to quality deterioration due to thermal fluctuation. Thermal and moisture properties play a significant role in the packaging materials in the form of a container. This study deals with the effect of microencapsulated phase change material (MPCM) with hydrophobic binder on thermal and moisture management properties of jute fabric. Jute fabric was treated with MPCM by pad-dry-cure method. The treated sample was characterized by thermogravimetric analysis (TGA), differential scanning colorimeter (DSC), scanning electron microscope (SEM), moisture management tester (MMT), and air permeability tester. The results revealed that MPCM treated jute fabric shows greater thermal stability and heat absorption ability of 10.58 J/g while changing from solid to liquid phase. The SEM image ensures even distribution of MPCMs on fabric surface and surface roughness was also observed using image processing software. The air permeability was found to decrease whereas the water repellency enhanced in the developed sample.

Electrospun nanofiber/cotton composite yarn with enhanced moisture management ability

2021 ◽  
pp. 004051752098497
Author(s):  
Ning Mao ◽  
Xiaohong Qin ◽  
Liming Wang ◽  
Jianyong Yu
Keyword(s):  
Water Transport ◽  
Moisture Absorption ◽  
Water Evaporation ◽  
Electrospun Fibers ◽  
Electrospun Nanofiber ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Composite Yarn ◽  
Management Ability ◽  
Cotton Yarns

Wet comfort is a critical performance for fabrics, especially when human bodies release sweat in daily life. Despite excellent moisture absorption performance, cotton yarns are still limited in the moisture release/transfer ability. Here, based on a novel electrospinning technology, polyacrylonitrile and polystyrene (PS) electrospun nanofiber/cotton composite yarns were produced, respectively. Under fluorescence microscopic observation, electrospun fibers within the composite yarns showed a uniform distribution. As a result, these composite yarn-based knitted fabrics obtained a good water transport ability and a fast water evaporation rate. According to the moisture management test, PS electrospun nanofiber composite yarn-based fabrics exhibited a relatively high one-way transport index R (400%), claiming an enhanced moisture management performance. Finally, specific surface area tests and finite element analyses were used to analyze the water transport mechanism inside the yarns. The results proved that a small number of electrospun fibers played a predominant role in enhancing the moisture management ability of the composite yarns.

scholarly journals Cloud point extraction and preconcentration of gold in geological matrices prior to flame atomic absorption determination

2010 ◽  
Vol 8 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Wifky El-Naggar ◽  
Taysseer Lasheen ◽  
El-Said Nouh ◽  
Ahmed Ghonaim
Keyword(s):  
Atomic Absorption ◽  
Cloud Point ◽  
Cloud Point Extraction ◽  
Limit Of Detection ◽  
Absorption Spectrometry ◽  
Complexing Agent ◽  
Rich Phase ◽  
Flame Atomic Absorption ◽  
Initial Aqueous Solution ◽  
Triton X

AbstractBrilliant green was used as a complexing agent in cloud point extraction (CPE) and applied for selective preconcentration of trace amounts of gold in geological matrices. The analyte in the initial aqueous solution was acidified with hydrochloric acid (0.1 M) and octylphenoxypolyethoxyethanol (Triton X-114) was added as a surfactant. After phase separation, based on the cloud point separation of the mixture, the surfactant rich phase was diluted with methanol and the analyte determined in the surfactant rich phase by flame atomic absorption spectrometry (FAAS). After optimization of the complexation and extraction conditions, a preconcentration factor of 31 was obtained for only 10 mL of sample. The analytical curve was linear in the range of 3–1000 ng mL−1 and the limit of detection was 1.5 ng mL−1. The proposed method was applied to the determination of gold in geological samples.

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