Comprehensive Evaluation on Heat-Moisture Comfort Performance of Knitted Fabrics Made from PTT Blended Fabrics

2011 ◽  
Vol 332-334 ◽  
pp. 1639-1642
Author(s):  
Fei Wang ◽  
Zheng Liu ◽  
Xiu E Bai
Keyword(s):  
Thermal Resistance ◽  
Comprehensive Evaluation ◽  
Cotton Fabrics ◽  
Air Permeability ◽  
Short Fibers ◽  
Excellent Performance ◽  
Knitted Fabrics ◽  
Moisture Permeability ◽  
Theoretical Support ◽  
Trimethylene Terephthalate

The PTT (Poly Trimethylene Terephthalate) fiber has been used widely in the clothing field for its excellent performance, but the application of its short fibers blended fabric needs to be further researched. At present, cotton fabrics and modal fabrics are chosen to make thin underwear. In this paper, PTT/Viloft/Spandex, JC/PTT/ Spandex, Modal/PTT/ Spandex, FI-R/PTT/ Spandex and Linen/PTT/C/ Spandex blended knitted fabrics of same count are chosen to study. Their air permeability, moisture permeability, thermal resistance, wicking are tested and evaluated. And gray pertinence method is chosen to make comprehensive evaluation on heat-moisture comfort performance of fabrics, the result is that Linen/PTT/C/ Spandex blended fabric has the best heat-moisture comfort performance. It provids certain theoretical support for the application of knitted fabrics made from PTT blended fabrics in the field of underwear.

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.

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.

Properties Test and Analysis of Aloe Fiber Knitted Fabric

2012 ◽  
Vol 503-504 ◽  
pp. 641-645
Author(s):  
Xiao Ting Feng ◽  
Jia Guang Meng ◽  
Juan Bai
Keyword(s):  
Comprehensive Evaluation ◽  
Air Permeability ◽  
Fuzzy Mathematics ◽  
Knitted Fabric ◽  
Moisture Permeability ◽  
Autumn And Winter

This article mainly introduced various properties of knitted fabric made of aloe fiber, including air permeability, moisture permeability, fastness, rigidity and flexibility, heat retention property, crease recovery, and made a comprehensive evaluation with fuzzy mathematics. Finally we obtained the best stitches applying to spring, summer, autumn and winter.

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.

Research for Knitted Fabric Made of Outlast Air-Conditioning Fiber

2012 ◽  
Vol 184-185 ◽  
pp. 1505-1509
Author(s):  
Zhen Wu ◽  
Jia Guang Meng ◽  
Shao Fang Chen
Keyword(s):  
Air Conditioning ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Test Method ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Moisture Permeability

The article briefly introduced the wearing characteristic and the test method of Outlast Air-conditioning fiber knitted fabrics, like comfortableness, fastness, and the moisture permeability and so on. Finally use the fuzzy comprehensive evaluation method to analyze and estimate the wearing characteristic of Outlast Air-conditioning fiber knitted fabric. And then reach a kind of stitch with the optimum wearing characteristic.

Heat transfer properties of bifacial fabrics

2016 ◽  
Vol 87 (19) ◽  
pp. 2307-2313 ◽  
Author(s):  
Licheng Zhu ◽  
Maryam Naebe ◽  
Ian Blanchonette ◽  
Xungai Wang
Keyword(s):  
Heat Transfer ◽  
Thermal Resistance ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Knitted Fabrics ◽  
Plain Weave ◽  
Knitted Structure ◽  
Woven Structure ◽  
Transfer Properties ◽  
Single Jersey

Bifacial fabrics were produced on a purpose-built machine, using wool, acrylic and polyester yarns, with the woven structure being plain weave, and the knitted structure being single jersey. In this study, the heat transfer properties of these fabrics were compared with conventional woven and knitted fabrics. The bifacial fabrics had lower air permeability than knitted and woven fabrics, and they were warmer to touch. The thermal resistance of the bifacial fabrics was higher than the knitted and woven fabrics, and the thermal resistance of the two faces of the bifacial fabrics was statistically different.

Research on Air Permeability, Moisture Permeability and UV Protection of Polyester Linen Blended Knitted Fabric

2013 ◽  
Vol 821-822 ◽  
pp. 411-414
Author(s):  
Yu Xiu Yan ◽  
Yan Na Feng ◽  
Xiu Yin Wang ◽  
Jing Jin ◽  
Jian Wei Tao
Keyword(s):  
Air Permeability ◽  
Uv Protection ◽  
Knitted Fabric ◽  
Regression Equations ◽  
Knitted Fabrics ◽  
Moisture Permeability ◽  
Fabric Structures

Most of UV protection textiles are made of chemical fibers, and a large part of them have poor air permeability and moisture permeability, which influences the wearing comfort. This work blended polyester and linen to produce a new kind of knitted fabric and tested the fabric structures, air permeability, moisture permeability and UV value. Excel and SPSS were used to compare the properties of new knitted fabrics and find out the relationships between the constructional parameters and properties. The results indicated that there are regression equations between constructional parameters and properties and got a new kind of UV protection fabric with good air permeability and moisture permeability.

Smart control of cotton fabric comfort by cross-linking thermo-responsive poly(2-(2-methoxyethoxy) ethoxyethyl methacrylate-co-ethylene glycol methacrylate)

2016 ◽  
Vol 87 (13) ◽  
pp. 1620-1630 ◽  
Author(s):  
Yangyi Chen ◽  
Jie An ◽  
Qi Zhong ◽  
Peter Müller-Buschbaum ◽  
Jiping Wang
Keyword(s):  
Ethylene Glycol ◽  
Cotton Fabric ◽  
Random Copolymer ◽  
Cotton Fabrics ◽  
Molar Ratio ◽  
Cross Linking ◽  
Glycol Methacrylate ◽  
Moisture Permeability ◽  
Smart Control ◽  
Fabric Comfort

The smart control of cotton fabric comfort by cross-linking thermo-responsive random copolymer is investigated. The monomers 2-(2-methoxyethoxy) ethoxyethyl methacrylate (MEO2MA) and ethylene glycol methacrylate (EGMA) with a molar ratio of 17:3 are selected to synthesize the thermo-responsive random copolymer poly(2-(2-methoxyethoxy) ethoxyethyl methacrylate- co-ethylene glycol methacrylate), abbreviated as P(MEO2MA- co-EGMA). By using citric acid as a cross-linking agent, the obtained P(MEO2MA- co-EGMA) is successfully immobilized onto cotton fabrics. Smart control is achieved from the thermo-responsive behavior of the copolymer. Cross-linked P(MEO2MA- co-EGMA) will collapse when the ambient temperature exceeds its transition temperature. Therefore, the formerly compact P(MEO2MA- co-EGMA) layer will switch to a porous structure, and the air/moisture permeability of the textiles is enhanced. As the comfort of the textiles is closely related to the air/moisture permeability, a smart control of the cotton fabric comfort can be realized. In addition, the softness of cotton fabrics with and without thermo-responsive polymers does not show a prominent change, even when the applied solution concentration is as high as 16% (wt%). On the contrary, the stiffness of the cotton fabric coated with poly( N-isopropylacrylamide) (PNIPAM) is significantly higher than the original cotton fabric, indicating that homo PNIPAM is less suitable for textiles used in daily lives. Moreover, the whiteness and mechanical properties are studied and stay unchanged after cross-linking. As a consequence, the introduction of P(MEO2MA- co-EGMA) into textiles can provide textiles with smart control of cotton comfort, and it will not influence the wearabilities of the textiles.

Effects on the Properties of Polyethylene Film Aging by Different Methods

2013 ◽  
Vol 830 ◽  
pp. 49-52 ◽  
Author(s):  
Chen Li ◽  
Sheng Ling Xiao
Keyword(s):  
Tensile Strength ◽  
Pilot Study ◽  
Tensile Property ◽  
Thermal Aging ◽  
Air Permeability ◽  
Polyethylene Film ◽  
Use Value ◽  
Moisture Permeability ◽  
Ultraviolet Aging

Aging of plastics occurs in use, it makes the performance degrade, and losing use value finally. In order to compare ultraviolet aging with thermal aging, we carry out a pilot study on the performance changes of PE film. The results demonstrated that the tensile property became lower under two aging methods, the tensile property during the thermal aging decreased by 6.07% but it was 15.08% in the ultraviolet aging at 120h, obviously the effects of the ultraviolet aging on the tensile strength were more significant, it declined faster. The air permeability curves were on the rise under the two aging methods, the results demonstrated that the effect of the ultraviolet aging on the air permeability rose slightly more than the thermal aging. The moisture permeability curves decreased firstly and then increased, but the values of the ultraviolet aging were higher.

Influence of Nano Silica Coating on the Functional Properties of Cotton Fabrics

2009 ◽  
Vol 67 ◽  
pp. 149-154
Author(s):  
K. Sasipriya ◽  
N. Gobi ◽  
R. Palanivelu ◽  
T.V. Ramachandran ◽  
V. Rajendran
Keyword(s):  
Textile Industry ◽  
Silica Coating ◽  
Cotton Fabrics ◽  
Air Permeability ◽  
Wall Material ◽  
Nano Silica ◽  
Chemical Route ◽  
Wrinkle Resistance ◽  
Potential Applications ◽  
Nanosilica Particles

Coating of nanoparticles on fabrics provides huge potential applications in textile industry. The microencapsulation process is used to encapsulate the nanosilica particles which is used to coat on the surface of fabrics and to observe the special properties such as anti-bacterial, wrinkle resistance, etc. The amorphous nano silica particles were prepared from the natural resources through chemical route. The encapsulated nano silica was prepared using sodium alginate as a wall material by the coacervation method. The prepared sample was coated on the surface of the fabrics by pad-dry-cure method. The anti-bacterial studies were carried out for the nano silica coated and uncoated fabrics and the results would demonstrate the antibacterial effectiveness of treated cotton fabrics. The basic properties like tensile strength, tear strength, air permeability, crease recovery and whiteness index have been analysed for the coated and uncoated fabrics.

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