Thermophysiological Comfort Properties of Ripstop Fabrics for Enforcement Personnel Clothing

  • Authors

    • N. Zahari
    • M. R. Ahmad
    • M. F. Yahya
    • A. M. Che Muhamed
    • R. Yahaya
    2018-11-27
    https://doi.org/10.14419/ijet.v7i4.18.21908
  • Air permeability, Ripstop, Thermophysiological Comfort, Water Vapour Permeability, Water Vapour Resistance

  • Abstract

    The choice of fabric parameters such as fiber type and structure play a key role in the thermoregulatory process as they can determine the change and loss of heat and moisture through sweat evaporation and heat dissipation. In this paper, the thermophysiological comfort properties of ripstop fabrics with different material composition percentages of polyester/cotton (P50C50 and P35C65) and nylon/cotton (N50C50 and N20C80) are reported. The study focuses on the fabric’s air permeability, thermal resistance and water vapour resistance. The results suggest that the air permeability of the fabrics depends on thread density. Fabrics with the lowest thread density (P50C50) have a more open structure and therefore allow more air to pass through it. The results also indicate that the fibre content affects the thermal resistance of the fabrics. Fabrics with lower proportion of cotton, P50C50 and N50C50, show lower thermal resistance results. With regards to water vapour resistance, fabrics containing nylon fibres (N20C80 and N50C50) gave higher resistance in comparisons with fabrics containing polyester (P35C65 and P50C50). The opposite trend was seen with water vapour permeability results. Overall, fabric of P50C50 gave the best thermophysiological comfort properties as indicated from the study.

     

     

  • References

    1. [1] A. V. Cardello, C. Winterhalter, and H. G. Schutz, “Predicting Military Sensory Development Application Psychophysical,†Text. Res. J., vol. 73, no. 3, pp. 221–237, 2003.

      [2] S. Duncan, T. Mclellan, and E. G. Dickson, “Improving Comfort in Military Protective Clothing,†Improv. Comf. Cloth., pp. 320–369, 2011.

      [3] H. G. Schutz, “Development and Application of New Psychophysical Methods for the Characterization of the Handfeel and Comfort Properties of Military Clothing,†Tech. Rep. NATICK/TR-02/022, no. October 1998, 2002.

      [4] C. Sun, J. S. chuen Au, J. Fan, and R. Zheng, “Novel Ventilation Design of Combining Spacer and Mesh Structure in Sports T-Shirt Significantly improves Thermal Comfort,†Appl. Ergon., vol. 48, pp. 138–147, 2015.

      [5] J. H. Guy, G. B. Deakin, A. M. Edwards, C. M. Miller, and D. B. Pyne, “Adaptation to Hot Environmental Conditions: An Exploration of the Performance Basis, Procedures and Future Directions to Optimise Opportunities for Elite Athletes,†Sport. Med., vol. 45, no. 3, pp. 303–311, 2015.

      [6] J. K. Davis et al., “Influence of Clothing on Thermoregulation and Comfort During Exercise in the Heat,†J. Strength Cond. Res. Publ. Ahead Print, vol. 31, no. 12, pp. 3435–3443, 2017.

      [7] J. He, E. Park, J. Li, and E. Kim, “Physiological and Psychological Responses while Wearing Firefighters’ Protective Clothing under Various Ambient Conditions,†Text. Res. J., vol. 87, no. 8, pp. 929–944, 2017.

      [8] A. K. Roy Choudhury, P. K. Majumdar, and C. Datta, Factors Affecting Comfort: Human Physiology and the Role of Clothing, no. 1985. Elsevier Masson SAS., 2011.

      [9] V. K. K. Yamini Jhanji, Deepti Gupta, “Heat and Moisture transport in single jersey plated fabrics,†Inidian J. Fibre Text. Res., vol. 39, no. June, pp. 115–121, 2014.

      [10] A. Afzal et al., “Influence of Fabric Parameters on Thermal Comfort Performance of Double Layer Knitted Interlock Fabrics,†AUTEX Res. J., vol. 17, no. 1, pp. 20–26, 2017.

      [11] B. K. Behera and P. K. Hari, “Assessing the Comfort of Woven Fabrics: Thermal Properties,†Woven Text. Struct., pp. 330–342, 2010.

      [12] J. E. Wingo, “Cardiovascular and Thermoregulatory Responses to Treadmill Running while Wearing Shirts with Different Fabric Composition,†Biol. Sport, vol. 24, no. 2, pp. 177–187, 2017.

      [13] P. Zhang, Y. Watanabe, S. H. Kim, H. Tokura, and R. H. Gong, “Thermoregulatory Responses to Different Moisture-Transfer Rates of Clothing Materials during Exercise,†J. Text. Inst. Part 1 Fibre Sci. Text. Technol., vol. 92, no. 1 Part 4, pp. 372–378, 2001.

      [14] M. Brazaitis, S. Kamandulis, A. Skurvydas, and L. DaniuseviÄiute, “The Effect of Two Kinds of T-Shirts on Physiological and Psychological Thermal Responses during Exercise and Recovery,†Appl. Ergon., vol. 42, no. 1, pp. 46–51, 2010.

      [15] H. G. Schutz, “Perceptions of Fiber and Fabric Uses and the Factors Contributing to Military Clothing Comfort and Satisfaction Factors Contributing to Clothing Comfort Item-by-Use Appropriateness Scaling,†Text. Res. J., vol. 75, no. 3, pp. 223–232, 2005.

      [16] G. Bedek, F. Salaün, Z. Martinkovska, E. Devaux, and D. Dupont, “Evaluation of Thermal and Moisture Management Properties on Knitted Fabrics and Comparison with a Physiological Model in Warm Conditions,†Appl. Ergon., vol. 42, no. 6, pp. 792–800, 2011.

      [17] J. Huang and W. Xu, “A New Practical Unit for the Assessment of the Heat Exchange of Human Body with the Environment,†J. Therm. Biol., vol. 31, no. 4, pp. 318–322, 2006.

      [18] N. Amran, M. R. Ahmad, and M. F. Yahya, “Moisture Management Properties of Untreated and Scoured Cotton and Bamboo Knitted Fabrics,†Int. J. Mater. Sci. Eng., vol. 3, no. 1, pp. 6–10, 2016.

      [19] G. Zhu, D. Kremenakova, Y. Wang, J. Militky, and R. Mishra, “Study on Air Permeability and Thermal Resistance of Textiles under Heat Convection,†Text. Res. J., vol. 85, no. 16, pp. 1681–1690, 2015.

      [20] M. Tausif, F. Ahmad, U. Hussain, A. Basit, and T. Hussain, “A Comparative Study of Mechanical and Comfort Properties of Bamboo Viscose as an Eco-Friendly Alternative to Conventional Cotton Fibre in Polyester Blended Knitted Fabrics,†J. Clean. Prod., vol. 89, pp. 110–115, 2015.

  • Downloads

  • How to Cite

    Zahari, N., R. Ahmad, M., F. Yahya, M., M. Che Muhamed, A., & Yahaya, R. (2018). Thermophysiological Comfort Properties of Ripstop Fabrics for Enforcement Personnel Clothing. International Journal of Engineering & Technology, 7(4.18), 196-199. https://doi.org/10.14419/ijet.v7i4.18.21908

    Received date: 2018-11-27

    Accepted date: 2018-11-27

    Published date: 2018-11-27