Analysis of thermal comfort properties of jacquard knitted mattress ticking fabrics

2016 ◽  
Vol 28 (1) ◽  
pp. 105-114 ◽  
Author(s):  
Sena Terliksiz ◽  
Fatma Kalaoğlu ◽  
Selin Hanife Eryürük
Keyword(s):  
Thermal Conductivity ◽  
Sleep Quality ◽  
Thermal Comfort ◽  
Human Body ◽  
Air Permeability ◽  
Vapour Permeability ◽  
Content Type ◽  
Textile Materials ◽  
Sleep Environment ◽  
Comfort Parameters

Purpose – Sleep is a vital and a basic activity of human life and it is a physiological need for human body. Sleep quality is directly influenced by the comfort conditions of sleep environment. The purpose of this paper is to define the role of textile materials utilized as bed fabrics on air and mass transfer from the human body. Design/methodology/approach – Thermal conductivity, thermal resistance, thickness, water vapour permeability and air permeability properties of fabrics were analyzed and statistically evaluated. Thermal conductivity and resistance measurements were performed in Alambeta test instrument. Water vapour permeability tests were done according to the Rotating Platform method, and air permeability was measured in FX 3300 Textest air permeability tester. Relationships between comfort parameters were statistically evaluated with correlation analysis. Findings – Comfort is a major concept in the determination of overall life quality as well as sleep quality of a resting person. Therefore academic studies about thermal comfort prediction of sleep environment and bed surface fabrics are of great importance. This study investigates conventional mattress ticking fabrics in terms of comfort parameters and defines the important fabric properties on comfort parameters. Originality/value – Sleep comfort is a promising area in textile comfort studies with its dynamics different from body thermal comfort during daily life. However, in general comfort studies are about garment materials which are in direct contact with the skin. This study tries to define the comfort status of textile materials which have indirect contact with the human body surface during sleep duration.

Evaluation of compression-recovery and thermal characteristics of multilayer bedding textiles

2020 ◽  
Vol 32 (5) ◽  
pp. 631-643
Author(s):  
Sedat Özer ◽  
Yaşar Erayman Yüksel ◽  
Yasemin Korkmaz
Keyword(s):  
Thermal Conductivity ◽  
Sleep Quality ◽  
Thermal Comfort ◽  
Sleep Duration ◽  
Human Body ◽  
Design Methodology ◽  
Thermal Characteristics ◽  
Air Permeability ◽  
Content Type ◽  
Thermal Comfort Properties

PurposeDesign of bedding textiles that contact the human body affects the sleep quality. Bedding textiles contribute to comfort sense during the sleep duration, in addition to ambient and bed microclimate. The purpose of this study is to evaluate the effects of different layer properties on the compression recovery and thermal characteristics of multilayer bedding textiles.Design/methodology/approachIn this study, woven and knitted multilayer bedding textiles were manufactured from fabric, fiber, sponge and interlining, respectively. Different sponge thickness, fiber and interlining weight were used in the layers of samples. Later, the pilling resistance, compression and recovery, air permeability and thermal conductivity of multilayer bedding textiles were investigated.FindingsThe results indicated that samples with the higher layer weight and thickness provide better compression recovery and lower air permeability properties. It was also found that knitted surfaces show the higher air permeability than the woven surfaces depending on the fabric porosity. Layer properties have insignificant effect on the thermal conductivity values.Originality/valueWhile researchers mostly focus on thermal comfort properties of garments, there are limited studies about comfort properties of bedding textiles in the literature. Furthermore, compression recovery properties of bedding textiles have also a great importance in terms of comfort. Originality of this study is that these properties were analyzed together.

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.

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.

Thermal comfort properties of weft knitted quilted fabrics

2020 ◽  
Vol 32 (6) ◽  
pp. 837-847 ◽  
Author(s):  
Sadaf Aftab Abbasi ◽  
Arzu Marmaralı ◽  
Gözde Ertekin
Keyword(s):  
Thermal Conductivity ◽  
Water Vapor ◽  
Thermal Resistance ◽  
Thermal Comfort ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Vapor Permeability ◽  
Content Type ◽  
Thermal Comfort Properties ◽  
Thermal Absorptivity

PurposeThis paper investigates the thermal comfort properties of quilted (jersey cord) fabrics produced with different width of diamond pattern, different filling yarn linear density and different types of material.Design/methodology/approachA total of 12 fabrics were knitted by varying the width of diamond pattern (1 and 3 cm), the filling yarn linear density (300 and 900 denier) and the type of materials (cotton, polyester and their combination). In this regard, air permeability, thermal conductivity, thermal resistance, thermal absorptivity and relative water vapor permeability of these fabrics were measured and evaluated statistically.FindingsThe results showed that fabrics knitted using cotton yarn in both front and back surfaces exhibit higher thermal conductivity, thermal absorptivity and relative water vapor permeability characteristics; whereas samples knitted using polyester yarn in both surfaces have higher air permeability and thermal resistance. As the linear density of filling yarn increases, thickness and thermal resistance of the samples increase and air permeability, thermal conductivity, water vapor permeability characteristics decrease. When the effect of the width of diamond pattern compared, it is seen that an increase in the width of pattern lead to an increase in thickness and thermal resistance and a decrease in thermal conductivity, thermal absorptivity and water vapor permeability values.Originality/valueMany researches were carried out on the thermal comfort properties of knitted fabrics, however there is a lack of research efforts regarding thermal comfort properties of quilted fabrics.

scholarly journals Evaluation of Bed Cover Properties Produced from Double Fabric Based on Honeycomb

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
A. A. Salama ◽  
A. S. El-Deeb ◽  
I. M. El-shahat
Keyword(s):  
Thermal Comfort ◽  
Water Vapour ◽  
Thermal Insulation ◽  
Abrasion Resistance ◽  
Air Permeability ◽  
Weft Yarn ◽  
Vapour Permeability ◽  
Geometrical Properties ◽  
Fabric Structure ◽  
Air Pockets

This research aims to innovate a new fabric structure, which could be used as a bed cover based on double honeycomb fabric with self-stitching. The honeycomb air pockets were aimed at facing each other to form closed small air chambers which work to sequester the air. The double fabric increases fabric thickness. Thus, the opportunity to improve thermal comfort could be achieved. A number of samples were produced with different densities and counts of weft yarn. Thermal insulation and water vapour permeability were measured and compared with bed covers produced from reversible weft backed structure. Geometrical properties, abrasion resistance, and air permeability were also measured. The results showed that the innovated structure had higher values of thermal insulation than reversible weft backed structure at certain weft counts and densities.

Prediction of bursting strength of the nylon parachute fabrics

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Vijay Kirubakar Raj ◽  
Renuka Devi
Keyword(s):  
Test Procedure ◽  
Field Evaluation ◽  
Air Permeability ◽  
Regression Equations ◽  
Statistical Regression ◽  
Destructive Testing ◽  
Content Type ◽  
Bursting Strength ◽  
Textile Materials ◽  
Practical Implications

PurposeParachutes are equipment that is repeatedly used as and when needed. Some of them are used for as many as 60 jumps. The property of the canopy fabric gets deteriorated with use. It is evaluated by destructive tensile and bursting strength. This study aims to focus on the nondestructive evaluation of the canopy fabric's fitness by testing air permeability and relating it with bursting strength. Predictor equations were developed to determine bursting strength from air permeability values.Design/methodology/approachANOVA techniques and statistical regression equations were formed.FindingsA series of samples containing five parachutes fabrics was used seven times, and their air permeability and bursting strength were determined to find the extent to the effect of reuse of parachute fabrics on their bursting strength and air permeability determination. It was found that there was a progressive drop in bursting strength and an increase in air permeability. An investigation of the extent of determination in terms of bursting strength and an increase in air permeability following the sense of five different types of parachute fabrics is reported.Research limitations/implicationsThe work focuses on the prediction of bursting strength to textile materials only and may not apply to other materials like membranes and sheets. The process of determining air permeability is relatively simpler and faster.Practical implicationsThe bursting strength can be predicted for used parachutes, which are otherwise subjected to destructive testing.Social implicationsThe men using the parachutes can be assured of the superior flawless performance of the parachute as equipment and also contribute to the saving of resources due to nondestructive testing, 100% evaluation of all parachutes is possible.Originality/valueThis article describes the nature of the test procedure and discusses the means of introducing it to users of parachutes. It is accepted that the method must undergo field evaluation and possible modification before it can become a routine tool of parachute using organizations.

Effect of environmentally friendly plasma treatment on microfibre fabrics to improve some comfort properties

2018 ◽  
Vol 30 (1) ◽  
pp. 29-37
Author(s):  
Ramakrishnan G. ◽  
Prakash C. ◽  
Janani G.
Keyword(s):  
Plasma Treatment ◽  
Water Vapour ◽  
Functional Properties ◽  
Design Methodology ◽  
Air Permeability ◽  
Water Vapour Permeability ◽  
Test Results ◽  
Vapour Permeability ◽  
Content Type ◽  
Significant Difference

Purpose The purpose of this paper is to investigate plasma treatment for Tencel microfibre fabrics for possible improvement in various functional properties. Design/methodology/approach The plasma treated and untreated fabrics were dyed using reactive dyes and evaluated for comfort properties such as wicking, water vapour permeability and air permeability. Findings The various comfort properties of plasma treated and an untreated Tencel microfibre fabric have been studied. The wicking results showed a significant reduction in wicking time for plasma treated fabrics compared to untreated fabrics. The test results for water vapour permeability show no significant difference between plasma treated and untreated fabrics. The plasma treated samples show higher air permeability than untreated samples. In the wetting test, it is clearly seen that the plasma treated samples absorbed the water at a faster rate. Originality/value This research investigates plasma treatment for Tencel microfibre fabrics for possible improvement in various functional properties.

scholarly journals Effect of Various Ring Yarns on Fabric Comfort

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mukesh Kumar Singh ◽  
Akansha Nigam
Keyword(s):  
Thermal Conductivity ◽  
Free Space ◽  
Linear Density ◽  
Air Permeability ◽  
Vapour Permeability ◽  
Spun Yarns ◽  
Woven Structures ◽  
Body Level ◽  
Fabric Comfort ◽  
Moisture Vapour

Comfort performance of woven structures made of various types of ring spun yarns like carded, combed, and compact spun yarns has been reported in the present study. Carded, combed, and compact spun yarns are entirely different in structure in terms of fibre migration inside the yarn body, level of free space inside the yarn, number of hairs, and length of hairs on yarn surfaces. In this study, 197 dtex and 144 dtex (30s Ne and 40s Ne) ring spun combed yarns are used as a warp. The same cotton mixing was used to manufacture 30s Ne and 40s Ne carded, combed, and compact yarns. Both 30s and 40s Ne linear density yarns were prepared by all three carded, combed, and compact yarn manufacturing routes. The structure of fibre strand in filling yarn has a great impact on comfort related properties, that is, thermal conductivity, , air permeability, wicking, and moisture vapour permeability.

Silicone oil based softeners including different additives

2019 ◽  
Vol 31 (1) ◽  
pp. 16-31
Author(s):  
Onur Balci ◽  
Gözde Özlem Kinoglu ◽  
Burcu Sancar Besen
Keyword(s):  
Polyethylene Glycol ◽  
Thermal Comfort ◽  
Silicone Oil ◽  
Air Permeability ◽  
Polyethylene Glycol 400 ◽  
Content Type ◽  
Moisture Management ◽  
Novel Approach ◽  
Hydrophilic Character ◽  
Thermal Comfort Properties

Purpose In this study, which is divided into two parts, the silicone softeners having different properties and including different additives as glycerin, polyethylene glycol 400 (PEG 400) and polyethylene glycol 4000 (PEG 4000) (due to their high hydrophilic characters) are produced for the purpose of providing or developing the hydrophilic character, lubricity and filling properties of the emulsions. The paper aims to discuss this issue. Design/methodology/approach In the first part of the study, the produced silicone emulsions were characterized and applied to the 100 percent cotton-knitted fabrics. In addition, the mechanical properties and whiteness degrees of the fabrics were also researched. In this part of the study, the effects of the produced silicone softeners on the comfort properties of the fabric samples were investigated by qualitative handle, hydrophility, contact angle, air permeability, thermal comfort and moisture management tests. Findings The results showed that while classic silicone application improved mechanical comfort properties of the samples such as the handle and drape properties, they worsened other thermal comfort properties as hydrophility, transfer or dispersion of the moisture, and air permeability. In addition, the thermal comfort properties about heat transfer of the fabric samples were not significantly affected by application of the silicone softeners. All results were affected from the producing recipe of the silicone softeners, and generally the usage of the additives had positive effect on the comfort results depending on the producing recipe (especially type of the silicone oil) of the silicone softeners. Research limitations/implications In this study, the additives were used in single form; however, their dual or trio combinations and/or their different amounts can be used in the emulsions. Practical implications In order to enhance the hydrophilic character, lubricity and filling properties of the silicone softeners, they could be produced by using appropriate additives. Originality/value In the literature, there were not any studies about the silicone softeners including different additives. So the authors can say that the contribution of the additives to the recipes of the silicone softeners is a novel approach.

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