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Preparation of Conductive Polyethylene Terephthalate Yarns by Deposition of Silver & Copper Nanoparticles

Ahmad S., Ashraf M., Ali A., Shaker K., Umair M., Afzal A., Nawab Y., Rasheed A.

Fibres & Textiles in Eastern Europe

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2017

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Vol. 25, no. 5 (125)

25--29

EN

The assemblage of textiles and electronics in a single structure has led to the development of smart textiles for functional purposes and special products. Conductive yarn as a necessary component of smart textiles is being developed by a number of techniques. The objective of the current study was to impart conductivity to yarn by coating the silver and copper nanoparticles on the surface of multifilament polyester textile fibres. The surface morphology and electrical conductivity of the coated yarns were investigated. The wash ability of the conductive yarns developed was also studied. The yarns showed good retention of the nanoparticles, as proven by the very small loss of the conductivity of the material.

PL

Połączenie tekstyliów i elektroniki w jednej strukturze doprowadziło do rozwoju inteligentnych tekstyliów znajdujących zastosowanie w celach funkcjonalnych i produktach specjalnych. Przędza przewodząca, jako niezbędny składnik inteligentnych wyrobów włókienniczych, może być otrzymywana za pomocą szeregu różnych technik. Celem badania było nadanie przewodnictwa przędzy poliestrowej poprzez powlekanie jej nanocząsteczkami srebra i miedzi. Zbadano morfologię powierzchni i przewodnictwo elektryczne powleczonych przędz, a także ich odporność na pranie. Przędze wykazywały dobrą retencję nanocząstek, co potwierdzała bardzo mała utrata przewodności materiału.

2

Prediction and Correlation of Air Permeability and Light Transmission Properties of Woven Cotton Fabrics

Nazir A., Hussain T., Afzal A., Faheem S., Ibrahim W., Bilal M.

Autex Research Journal

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2017

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Vol. 17, no. 1

61--66

EN

The aim of this study was to develop statistical models for predicting the air permeability and light transmission properties of woven cotton fabrics and determine the level of correlation between the two parameters. Plain woven fabrics were developed with different warp and weft linear densities, ends per inch and picks per inch. After desizing, scouring, bleaching, drying and conditioning, the air permeability and light transmission properties of the fabric samples were determined. Regression analysis results showed statistically significant effect of the fabric ends, picks and warp linear density on both the fabric air permeability and light transmission. Correlation analysis was performed to analyze the relation between the fabric air permeability and light transmission. A linear equation was also formulated to find the fabric air permeability through transmission of light intensity. A fitted line plot between the air permeability and light transmission exhibited significant correlation with R-sq. value of 96.4%. The statistical models for the prediction of fabric air permeability and light transmittance were developed with an average prediction error of less than 7%.

3

Influence of Fabric Parameters on Thermal Comfort Performance of Double Layer Knitted Interlock Fabrics

Afzal A., Ahmad S., Rasheed A., Ahmad F., Iftikhar F., Nawab Y.

Autex Research Journal

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2017

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Vol. 17, no. 1

20--26

EN

The aim of this study was to analyse the effects of various fabric parameters on the thermal resistance, thermal conductivity, thermal transmittance, thermal absorptivity and thermal insulation of polyester/cotton double layer knitted interlock fabrics. It was found that by increasing fibre content with higher specific heat increases the thermal insulation while decreases the thermal transmittance and absorptivity of the fabric. It was concluded that double layer knitted fabrics developed with higher specific heat fibres, coarser yarn linear densities, higher knitting loop length and fabric thickness could be adequately used for winter clothing purposes.

4

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

Ahmad S., Ahmad F., Afzal A., Rasheed R., Mohsin M., Ahmad N.

Autex Research Journal

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2015

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Vol. 15, no. 1

30--34

EN

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.