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 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 Effect of Weave Structure on Thermo-Physiological Properties of Cotton Fabrics

2015 ◽  
Vol 15 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Sheraz Ahmad ◽  
Faheem Ahmad ◽  
Ali Afzal ◽  
Abher Rasheed ◽  
Muhammad Mohsin ◽  
...  
Keyword(s):  
Thermal Resistance ◽  
Cotton Fabrics ◽  
Air Permeability ◽  
Climatic Conditions ◽  
Plain Weave ◽  
Weave Structure ◽  
Physiological Properties ◽  
The Relationship

Abstract This paper aims to investigate the relationship between fabric weave structure and its comfort properties. The two basic weave structures and four derivatives for each selected weave structure were studied. Comfort properties, porosity, air permeability and thermal resistance of all the fabric samples were determined. In our research the 1/1 plain weave structure showed the highest thermal resistance making it suitable for cold climatic conditions. The 2/2 matt weave depicted the lowest thermal resistance which makes it appropriate for hot climatic conditions.

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.

Development of tri-layer knitted fabrics for shuttle badminton players

2017 ◽  
Vol 48 (4) ◽  
pp. 738-760 ◽  
Author(s):  
T Suganthi ◽  
P Senthilkumar
Keyword(s):  
Thermal Comfort ◽  
Outer Layer ◽  
Thermal Environment ◽  
Middle Layer ◽  
Objective Evaluation ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Moisture Management ◽  
Insensible Perspiration ◽  
Knitted Structure

Thermo-physiological comfort of the fabric is attained through the ability of managing heat and transmission of sensible and insensible perspiration. An investigation on influence of tri-layer knitted structure on thermal comfort characteristics of layered knitted fabrics was carried out. Three tri-layer knitted structures were developed in which inner layer was made up of micro-fibre polyester and outer layer was made up of modal yarn. The yarn used in the middle layer was changed to either micro-fibre polyester or polyester or acrylic yarn. The thermal comfort characteristics such as thermal conductivity, air permeability, water vapour permeability, wicking, moisture absorbency, drying rate and moisture management properties have been analysed. Wear trial was conducted for shuttle badminton players and they were ranked using thermal environment subjective judgement scale. Tri-layer knitted structure with micro-fibre polyester in the inner and middle layer and modal in the outer layer showed better thermal comfort characteristics both by objective evaluation and wear trial method compared to polyester or acrylic in the middle layer and is preferable for shuttle badminton sportswear.

scholarly journals Investigation of the comfort properties of traditional woven fabrics with different structural parameters

2020 ◽  
Vol 71 (04) ◽  
pp. 302-308
Author(s):  
MINE AKGUN ◽  
GIZEM KARAKAN GUNAYDIN ◽  
AYÇA GÜRARDA ◽  
ERHAN KENAN ÇEVEN
Keyword(s):  
Thermal Resistance ◽  
Water Vapour ◽  
Structural Parameters ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Water Vapour Permeability ◽  
Test Results ◽  
Vapour Permeability ◽  
Thermal Absorptivity

Turkish traditional Buldan weavings are known as special fabrics in terms of providing comfortable clothes which are known to be natural and healthy in Denizli, Turkey. The research presented in this paper assesses the effects of different fabric structural parameters of Buldan fabrics on comfort properties such as thermal resistance, thermal absorptivity, water vapour permeability and air permeability. Five different Buldan fabrics woven with different fabric structural parameters were produced. According to test results, cotton/Tencel Buldan fabrics indicated similar comfort properties with the 100% cotton Buldan fabric properties. Additionally, the lowest thermal absorptivity was observed from 100% cotton Buldan fabrics which give the warmth feeling among the evaluated samples.

Investigation of thermoregulation properties of various ceramic-containing knitted fabric structures

2019 ◽  
Vol 50 (5) ◽  
pp. 716-739 ◽  
Author(s):  
Laimutė Stygienė ◽  
Sandra Varnaitė-Žuravliova ◽  
Aušra Abraitienė ◽  
Sigitas Krauledas ◽  
Julija Baltušnikaitė-Guzaitienė ◽  
...  
Keyword(s):  
Thermal Resistance ◽  
Cold Weather ◽  
Heat Accumulation ◽  
Spectroscopy Analysis ◽  
Knitted Fabrics ◽  
X Ray ◽  
Moisture Management ◽  
Infrared Rays ◽  
Knitted Structure ◽  
Fabric Structures

To ensure the thermal comfort during high physical activity, clothes must have good thermoregulation properties. Textiles containing ceramic additives, which are able to absorb and emit back the thermal energy from the human body, can be used to improve the thermal properties of the fabric. The aim of the research was to investigate the thermal and moisture management properties of different, three-layer knitted fabrics containing fibers impregnated with infrared-emitting ceramic particles. The thermal efficiency of the manufactured knits was characterised by the dynamics of accumulated/released heat generated by infrared rays and expressed as achieved steady-state surface temperature while and after the heating. Thermal resistance and liquid moisture management properties were investigated during the research as well. The elemental analysis of different pure bio-ceramic additives in yarns, used for development of knitted fabrics, was determined by X-ray fluorescence spectroscopy analysis. It was determined that heat accumulation is directly related to the calculated quantity of bio-ceramic additives in the knits. The obvious correlation between accumulated/released heat, thermal resistance, and the quantity of bio-ceramic additives in all investigated knitted structures was also investigated. Taking into account all the results obtained during the study of the thermoregulation properties, the optimal knitted structure, which could be comfortable for wearing next to the skin in cold weather, was selected.

Thermo-physiological properties of 3D spacer knitted fabrics

2016 ◽  
Vol 28 (3) ◽  
pp. 328-339 ◽  
Author(s):  
Rajesh Mishra ◽  
Arumugam Veerakumar ◽  
Jiri Militky
Keyword(s):  
Thermal Conductivity ◽  
Water Vapour ◽  
Air Permeability ◽  
Water Vapour Permeability ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Content Type ◽  
Spacer Fabric ◽  
Multifilament Yarns ◽  
Spacer Fabrics

Purpose – The purpose of this paper is to investigate effect of material properties in 3D knitted fabrics on thermo-physiological comfort. Design/methodology/approach – In the present study six different spacer fabrics were developed. Among these six fabrics, it was classified into two groups for convenient analysis of results, the first group has been developed using polyester/polypropylene blend with three different proportion and second group with polyester/polypropylene/lycra blend having another three different composition. As a spacer yarn, three different types of 88 dtex polyester monofilament yarn and polyester multifilament yarns (167 dtex and 14.5 tex) were used and 14.5 tex polypropylene and 44 dtex lycra multifilament yarns were also used for the face and back side of the spacer fabrics (Table I). These fabrics were developed in Syntax Pvt Ltd Czech Republic. Findings – The main influence on the water vapour permeability of warp knitted spacer fabrics is the kind of raw material, i.e. fibre wetting and wicking. Also there is no correlation between air permeability and water vapour permeability. It is found that both air permeability and thermal conductivity are closely related to the fabric density. It is also found that the fabric characteristics of spacer fabric show a very significant effect on the air permeability, thermal conductivity and mechanical properties of spacer fabric. Therefore, selection of spacer fabric for winter clothing according to its fabric characteristics. Practical implications – The main objective of the present study is to produce spacer knitted 3D fabrics suitable for defined climatic conditions to be used as clothing or in sports goods. Originality/value – New 3D knitted spacer fabrics can be produced with improved comfort properties.

Influence of fabric structure and finishing pattern on the thermal and moisture management properties of unidirectional water transport knitted polyester fabrics

2018 ◽  
Vol 89 (10) ◽  
pp. 1983-1996 ◽  
Author(s):  
Yang Yang ◽  
Liqun Chen ◽  
Tayyab Naveed ◽  
Peihua Zhang ◽  
Amjad Farooq
Keyword(s):  
Water Transport ◽  
Moisture Absorption ◽  
Air Permeability ◽  
Global Market ◽  
Polyester Fabrics ◽  
Moisture Management ◽  
Fabric Structure ◽  
Physiological Properties ◽  
Water Transmission ◽  
Water Transport Properties

The thermal-wet-comfort characteristic of fabrics is primary to clothing for human bodies. The comfort aptitudes in the fabrics increase the significance of attire and are gaining more interest in the global market. Therefore, the purpose of this study is to analyze the influence of finishing patterns and fabric structure parameters on the comfort performance, air permeability, wicking effect, one-way water transport properties and thermal-physiological properties of unidirectional water transport knitted polyester fabrics. Eight samples are developed by hydrophobic finishing, which possessed good moisture management properties. The result implies that with the intensity of pores, there is an increase in the capillary effect of moisture absorption and transportation in the fabrics. Further, the escalation of the hydrophilic area to a hydrophobic area and regularity in the finishing pattern make the fabrics better in performance for unidirectional water transmission and thermal-wet comfortability. The statistical analysis indicates that the fabric structure and finishing patterns have a significant effect ( p = 0.01) on moisture management properties. The fabric with a rib air structure and finishing pattern with ratio (69%) of the hydrophilic area to the hydrophobic area has the best regularity and moisture management property.

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