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Document Type : Original Article


Department of Textile Engineering, Amirkabir University of Technology


In this research, fire and radiant heat protection and thermal comfort properties of cotton/nylon-Kermel blended woven fabrics, were utilized to predict the thermal comfort and protection limit of this fabric structure based on Woo and Barker developed model. The results showed that the porosity, the air permeability and the thermal resistance increased with Kermel fiber blend ratio. Conversely, the water vapor resistance decreased with increase of Kermel fiber blend ratio up to 40%. The thermal conductivity of blended fabric didn’t change with the increase in Kermel fiber blend ratio up to 40%. Cotton/nylon fabrics, particularly those containing 30% Kermel, exhibited the highest upper thermal comfort limit and also the widest range of fabric metabolic activity level. The Kermel fibers had a significant effect on prevention of fire diffusion and Radiant Protective Performance (RPP) of fabrics. The results of vertical wicking and MMT tests show that adding Kermel fibers up to 10% detracts these thermal comfort properties significantly. The results of this research suggest that blending Kermel fiber with cotton and nylon at a blend ratio of 30% enhances thermal comfort limit and heat protection of blended fabrics. Moreover, cotton/nylon (50/10) blended with 40% Kermel fiber leads to desirable thermal comfort properties.


[1] A.M. Shepherd, “Performance of Protective Clothing and
Equipment”,ASTMINT,vol. 9, 2012.
[2] C.N. Nelson, N.W. Henry, “Performance of protective clothing”
ASTM INT, vol. 7, 2000.
[3] R.A. Scott, “Textiles for protection”,Woodhead Publishing
Ltd.,Cambridge, England, 2005.
[4] A.R. Horrocks, S.S. Anand,“Handbook of Technical
Textiles”,Woodhead Publishing Ltd.,Cambridge, England, 2000.
[5] M. Matusiak, “Modeling the thermal resistance of woven fabrics”,J.
Text. Inst., vol.104, no.4,pp. 426-437, 2013.
[6] L. Milenkovic, P. Skundric, R. Sokolovic, T. Nikolic, “Comfort
properties of defense protective clothing”, The Sci.
J.FactaUniversitatis, vol.1,pp. 101-106,1999.
[7] S. Yoo, R.L. Barker, “Comfort properties of heat-resistant
protective workwear in varying conditions of physical activity and
environment. Part I: Thermophysical and sensorial properties of
fabrics”, Text. Res. J., vol.75, no.7, pp. 523-530, 2005.
[8] R.L. Barker, T. Tang, G. Song, A. McDonald, “Multilevel approach
to evaluating the comfort of functional clothing”,J. Fiber Bioeng.
Inform., vol. 1.1, no. 3, pp. 173-176, 2008.
[9] R.L. Barker, “From fabric hand to thermal comfort: the evolving
role of objective measurements in explaining human comfort
response to textiles”,Int. J. Cloth. Sci. Tech., vol. 14, no. 3/4, pp.
[10] S. Yoo, R.L. Barker, “Comfort properties of heat resistant protective
workwear in varying conditions of physical activity and
environment. Part II: Perceived comfort response to garments and
its relationship to fabric properties”, Text. Res. J., vol. 75, no. 7, pp.
531-539, 2005.
[11] P. Senthilkumar, M. Kantharaj, M. Vigneswaran, “Thermal Comfort
Characteristics of Plain Woven Fabrics”, J. Text. Assoc., vol. 71, no.
4, pp. 188-195, 2010.
[12] N. Ucar, T. Yilmaz, “Thermal properties of 1x1, 2x2, 3x3 rib knit
fabrics”,Fibres Text. East. Eur., vol. 12, no. 3, pp. 34-38,2004.
[13] J. Militky, “Prediction of textile fabric thermal conductivity”, 6th
International Thermal Manikin and Modelling Meeting
Proceedings, Hong Kong Polytechnic University, Hong Kong. p.
131-138, 2006.
[14] N. Oglakcioglu, A. Marmarali, “Thermal comfort properties of
some knitted structures”,Fibres Text. East. Eur., vol. 15, no. 5-6,pp.
94-96, 2007.
[15] S.B. Stankovic, D. Popovic, G.B. Poparic, “Thermal properties of
textile fabrics made of natural and regenerated cellulose fibers”,
Polym. Test., vol. 27, no. 1, pp. 41-48, 2008.
[16] H.Y. Wu, W.Y. Zhang, J. Li, “Study on Improving the Thermal-Wet
Comfort of Clothing during Exercise with an Assembly of
Fabrics”,Fibres Text. East. Eur., vol. 17, no. 4, pp. 46-51,2009.
[17] R.K. Varshney, V.K. Kothari, S. Dhamija, “A study on
thermophysiological comfort properties of fabrics in relation to
constituent fibre fineness and cross-sectional shapes”, J. Text. Inst.,
vol. 101, no. 6, pp. 495-505, 2010.
[18] I. Shalev, R.L. Barker, “Protective fabrics-A comparison of
laboratory methods for evaluating thermal protective performance in
convective radiant exposures”,Text. Res. J.,vol. 54, no. 10, pp. 648-
654, 1984.
[19] Y.M. Lee, R.L. Barker, “Effect of moisture on the thermal
protective performance of heat-resistant fabrics”, J. Fire Sci., vol. 4,
no. 5, pp. 315-331, 1986.
[20] Y.M. Lee, R.L. Barker, “Thermal protective performance of heatresistant
fabrics in various high-intensity heat exposures”, Text. Res.
J., vol. 57, no. 3,pp. 123-132, 1987.
[21] G.W. Song, R.L. Barker, H. Hamouda, A.V. Kuznetsov, P.
Chitrphiromsri, R.V. Grimes, “Modeling the thermal protective
performance of heat resistant garments in flash fire exposures”,Text.
Res. J., vol. 74, no. 12,pp. 1033-1040, 2004.
[22] L. Valaseviciute, R. Milasius, R. Bagdoniene, A. Abraitiene,
“Investigation of End-use Properties of Fabric from
MetaaramidYarns”,Mater. Sci., vol. 9, no. 4, pp. 391-394, 2003.
[23] J.W.S. Hearle,“High-Performance Fibers”,The Textile
[24] “Kermel Performance is Our Profession”, [Catalog] 2013; Available
[25] H.N. Yoon, A. Buckley, “Improved comfort polyester: Part 1:
Transport properties and thermal comfort of polyester/cotton blend
fabrics”,Text. Res. J.,vol. 54, no. 5,pp. 289-298, 1984.
[26] R.L. Barker, S.S. Woo.,“Using Novel Methods to Measure The Heat
and Moisture Transport Properties of Polyester and Cotton Knit
Fabrics”, Fiber Producers Conference, Clemson, SC., 1988.
[27] A.H. Woodcock, “Moisture Transfer in Textile Systems, Part
I”,Text. Res. J.,vol. 32, 1962.
[28] A.H. Woodcock, “Moisture Transfer in Textile Systems, Part
II”,Text. Res. J.,vol. 32, 1962.
[29] R. Niedermann, R.M. Rossi, “Objective and subjective evaluation of
the human thermal sensation of wet fabrics”,Text. Res. J.,vol. 82,
no. 4, pp. 374-384, 2012.
[30] C.A. Harper, “Handbook of Building Materials for Fire Protection -
Chapter 5”, The McGraw-Hill Companies, Inc., 2004.
[31] F. Zhu, W. Zhang, M. Chen, “Investigation of material
combinations for fire-fighter's protective clothing on radiant
protective and heat-moisture transfer performance”,Fibres Text.
East. Eur., vol. 15, no. 1, pp. 72-75, 2007.
[32] B.P. Saville, “Physical testing of textiles”, Woodhead Publishing
Ltd.,Cambridge, England, 1999.
[33] R. Fangueiro, A. Filgueiras, F. Soutinho, M. Xie, “Wicking
Behavior and Drying Capability of Functional Knitted
Fabrics”,Text. Res. J., vol. 80, no. 15, pp. 1522-1530, 2010.