Dependence of Thermal Contact Properties on Compression Pressure

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Abstract

<p>Thickness and compression pressure play an important role in thermal sensation when a fabric is touched. In this work, we examine the temperature change inside furs and fabrics to simulate a finger pressing the surface of a fabric. In this study, a Kawabata finger sensor device was used to measure the temperature change (<i>UT</i><sub>max</sub>, ̊C/s), which is used to indicate the thermal sensation. The finger sensor unit was connected to a compression tester to change the compression pressure and obtain pressure-thickness curves. For artificial fur samples, the values of <i>UT</i><sub>max</sub> increased with the increase of maximum pressure for all samples. This suggests that when artificial fur is touched with a higher force, the contact feeling may be cooler than that when the fur is touched gently. For short pile lengths, <i>UT</i><sub>max</sub> was affected by the increase in pile length. For long pile lengths, <i>UT</i><sub>max</sub> was almost constant and independent of pile length. A linear relationship between the volume ratio of air and <i>UT</i><sub>max</sub> was observed when the pile length was long. When the thickness of the fur was small, the thickness had a large effect on the <i>UT</i><sub>max</sub>. For fabric samples, the effect of fiber conductivity on the <i>UT</i><sub>max</sub> was much larger than that of the thickness.</p>

Journal

  • Journal of Fiber Science and Technology

    Journal of Fiber Science and Technology 73(8), 177-181, 2017

    The Society of Fiber Science and Technology, Japan

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