Determination of electromagnetic shielding and antibacterial properties of multifunctional warp-knitted fabrics

Yu, Zhicai; Zhang, Jianfei; Lou, Ching‐Wen; He, Hualing; Chen, An-Pang; Lin, Jia‐Horng

doi:10.1080/00405000.2014.984444

Cited by 26 publications

(28 citation statements)

References 19 publications

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“…Bu zorlanmış salınım yapan yük bir anten gibi davranır ve mevcut dalgayı geri yansıtarak yansımaya neden olur [12][13][14][15][16]. Bir başka ifade ile dalganın uzaydaki empedansı ekrandaki empedansından farklı olduğunda elektromanyetik ekrandan yansıma olur.…”

Section: Kalkanlama Teorisiunclassified

“…Yansıma, ekran özellikli malzemenin hem dış yüzeyinde, hem de iç kısmında gerçekleşmektedir. Ayrıca mevcut elektrik alan etkisi ile kutuplanan zıt yükler, ters yönlü bir elektrik alan oluştururlar ki bu da elektromanyetik dalganın elektrik alan bileşenini zayıflatır [12][13][14][15][16].…”

Section: Kalkanlama Teorisiunclassified

“…Bu sayede 44,3 mm çapa sahip olan yeni aparat ile 0.01 GHz-4.5 GHz frekans aralığında sağlıklı SE ölçümleri yapılabilmektedir. Hibrit ipliklerden üretilen kumaşlarda, kalkanlama etkinliğinin düşük frekanslarda; frekans artışı ile bir miktar yükselmesi, yapının tasarımına ve metal içe-riğine bağlı olarak bir maksimumdan sonra artan frekansla azalması beklenir [14]. Şekil 8-15 arası grafikler ASTM D 4935 standardı açısından incelendiğinde bu durumun gözlenemediği açıktır.…”

Section: Kalkanlama Teorisiunclassified

See 2 more Smart Citations

An Innovative Test Apparatus for Electromagnetic Shielding Effectiveness Test of Textile Materials

Türksoy¹,

Üstüntağ²,

Saritaş³

et al. 2015

J Text Eng

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Section: Kalkanlama Teorisiunclassified

See 1 more Smart Citation

An Innovative Test Apparatus for Electromagnetic Shielding Effectiveness Test of Textile Materials

Türksoy¹,

Üstüntağ²,

Saritaş³

et al. 2015

J Text Eng

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show abstract

“…Therefore, hybrid yarns produced from metal wires with synthetic or natural fibers/yarns can be preferable. 8,12 In previous studies, various methods were used for the production of metal composite yarn such as blending in staple form, 6,13 hollow spindle, 9,10,14 metal coating, 15 plying/twisting with metal wire, [16][17][18] core spun, 1,[19][20][21][22][23][24] and siro core spinning. 8 There are many studies about knitted fabrics produced from different types of metal composite yarns.…”

Section: Introductionmentioning

confidence: 99%

Investigation on antimicrobial activity and electromagnetic shielding effectiveness of metal composite single jersey fabrics

Özkan

2019

Journal of Engineered Fibers and Fabrics

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In this study, antimicrobial and electromagnetic shielding properties of metal composite single jersey fabrics were investigated. For this purpose, stainless steel wire, copper wire, and metalized silver polyamide filament were commingled with textured polyester. The composite yarns were knitted to single jersey fabrics. Electromagnetic shielding effectiveness of samples was measured according to free space test method between 0.8 and 5.2 GHz frequency range. In addition, antibacterial and antifungal activity tests were performed for the overall technical characterization of composite fabrics. The effects of metal type, filament form on electromagnetic shielding effectiveness, and antimicrobial properties were examined. All composite fabrics showed electromagnetic shielding properties at different levels up to 35 dB in vertical direction. Fabrics including metalized multifilament yarn exhibit higher electromagnetic shielding effectiveness in both vertical and horizontal directions. In addition, antibacterial activity level of metalized silver polyamide and copper composite fabrics reached up to 99% against Klebsiella pneumoniae and Staphylococcus aureus. Furthermore, Aspergillus niger could not grow on these composite fabrics.

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“…Conductive yarns are an essential part of e-textiles that transmits signals between electrical components. As a result, there are a great number of studies on the combination of conductive yarns and textiles using directive fabrication [5][6], embroidery [7], and stitching [8]. Directive fabrication includes knitting and weaving.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing Techniques and Property Evaluations of Conductive Elastic Knits

Lou¹,

He²,

Hsieh³

et al. 2017

dtetr

Self Cite

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ABSTRACT The combination of functional electrical products improves the value of textiles, including measurement, detection, and communication. These added values, however, have a negative influence on comfort and consumer acceptance. This study proposes using a knitting technique and conceals the circuit that connects electrical components inside the textiles, thereby ensuring satisfactory comfort and mechanical properties. The pattern designed using a crochet machine is applied to the preparation of conductive elastic knits. During the process, different numbers and types of conductive yarns are incorporated. The stiffness, tensile strength, elastic response rate, air permeability, and electrical resistance of conductive elastic knits are evaluated. The rigidity and electrical resistance test results show that increasing the numbers of conductive yarns results in a lower electrical resistance, as well as a rugged knit surface and exposure of the yarns. Moreover, increasing the numbers of conductive yarns does not pertain to the physical properties of elastic knits, according to the results of air permeability, tensile strength, and elastic recovery tests.

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Determination of electromagnetic shielding and antibacterial properties of multifunctional warp-knitted fabrics

Cited by 26 publications

References 19 publications

An Innovative Test Apparatus for Electromagnetic Shielding Effectiveness Test of Textile Materials

An Innovative Test Apparatus for Electromagnetic Shielding Effectiveness Test of Textile Materials

Investigation on antimicrobial activity and electromagnetic shielding effectiveness of metal composite single jersey fabrics

Manufacturing Techniques and Property Evaluations of Conductive Elastic Knits

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