Friction core-spun yarns for electrical properties of woven fabrics

Ueng, Tzuu-Hsing; Cheng, K. B.

doi:10.1016/s1359-835x(01)00048-3

Cited by 64 publications

(36 citation statements)

References 4 publications

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“…On the other hand, most of the authors 4,19,21,24,26,28,[31][32][33][34][35]38,40,41,[44][45][46][47][48][49]52 prefer to use the coaxial transmission line method specified in ASTM D4935-99 for the measurement of EMSE of conductive textiles. There is also one investigation 33 on the EMSE of conductive textiles that is carried out with both coaxial transmission line and dualcoaxial TEM Cell methods.…”

Section: Electromagnetic Shielding Effectiveness Of Textile Materialsmentioning

confidence: 99%

Comparison of electromagnetic shielding effectiveness of conductive single jersey fabrics with coaxial transmission line and free space measurement techniques

Tezel

Kavuşturan

Vandenbosch

et al. 2013

Textile Research Journal

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The aim of this study is to investigate the electromagnetic shielding effectiveness (EMSE) of thin and lightweight knitted fabrics that are suitable for casual wear like t-shirts. For the purpose of having a low production cost, metal/cotton conductive composite yarns are produced by a yarn doubling technique, involving stainless steel wires (35 m, 50 m) or copper wires (50 m, 70 m) and Ne30/1, Ne40/1, Ne60/2, Ne80/2 count cotton yarns. Single jersey fabrics are knitted on an E20 circular knitting machine with the same machine settings. Coaxial transmission line and free space measurement (by using an anechoic chamber) techniques are used for the EMSE measurements in the frequency range of 100 MHz-1.5 GHz and 1 GHz-18 GHz respectively. The free space measurement technique test results reveal that single jersey knitted fabrics have EMSE ability for the electric field polarization in the same direction as the main direction of the conductive metal wires in the fabric. It is observed that all single jersey fabric structures have more than 7 dB (80% or better) EMSE for GSM-850 and GSM-900 cellular phone communication bands according to coaxial transmission line equipment test results. SNK test results of both test methods reveal that, while 100% cotton fabrics do not have EMSE ability, cotton yarn count is highly significant on the EMSE of single jersey fabrics with conductive composite yarns. Fabrics with two-ply fine cotton yarns (Ne60/2 and Ne80/2) have higher EMSE values than the fabrics with one-ply cotton yarn of the same yarn count (Ne30/1 and Ne40/1).

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Section: Electromagnetic Shielding Effectiveness Of Textile Materialsmentioning

confidence: 99%

Comparison of electromagnetic shielding effectiveness of conductive single jersey fabrics with coaxial transmission line and free space measurement techniques

Tezel

Kavuşturan

Vandenbosch

et al. 2013

Textile Research Journal

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show abstract

“…Conductive knitted fabrics and knitted fabric-reinforced composites are especially suitable for making complex-shaped materials. They are also more elastic than the other fabric types (Cheng et al, 2000a(Cheng et al, , 2000bCheng et al, 2002;Ueng & Cheng, 2001).…”

Section: Introductionmentioning

confidence: 98%

Determination of electromagnetic shielding performance of plain knitting and 1X1 rib structures with coaxial test fixture relating to ASTM D4935

Soyaslan

Çömlekçi

Göktepe

2010

Journal of the Textile Institute

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In this study, electromagnetic shielding effectiveness of some weft-knitted structures is investigated. For this purpose, weft-knitted structures are produced using copper wire/cotton incorporated yarns. Conductive yarns are produced by yarn-folding machine. Four knitted constructions (plain knitting, weft in-laid plain knitting, 1X1 rib, and weft in-laid 1X1 rib) are formed into knitted structures with conductive yarns by using 7G flat knitting machine.Electromagnetic shielding values of test samples are determined by a coaxial test fixture relating to ASTM D4935 test standards. Measurements are made in the frequency range of 27 MHz-3 GHz. The effect of conductive content, stitch density and fabric construction parameters are investigated considering the electromagnetic shielding performance of weft-knitted structures. Test results show that weft-knitted structures investigated in this study have 10-40 dB shielding effectiveness under the frequency of 500 MHz.

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“…Conductive textiles were traditionally produced through different methods including coating with metals or conductive films, incorporating conductive fillers, or insertion of metallic wires inside the yarns [4]. Textile materials with flexible structure can be used as a host for electronic component in applications needed to be secured where they are close to the human body [5].…”

Section: Introductionmentioning

confidence: 99%

Conductive nylon fabric through in situ synthesis of nano-silver: Preparation and characterization

Montazer

Komeily‐Nia

2015

Materials Science and Engineering: C

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Friction core-spun yarns for electrical properties of woven fabrics

Cited by 64 publications

References 4 publications

Comparison of electromagnetic shielding effectiveness of conductive single jersey fabrics with coaxial transmission line and free space measurement techniques

Comparison of electromagnetic shielding effectiveness of conductive single jersey fabrics with coaxial transmission line and free space measurement techniques

Determination of electromagnetic shielding performance of plain knitting and 1X1 rib structures with coaxial test fixture relating to ASTM D4935

Conductive nylon fabric through in situ synthesis of nano-silver: Preparation and characterization

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