衣下间隙与服装热湿阻的关系研究
首发时间:2016-04-01
摘要:为了研究人体皮肤与织物之间存在的衣下间隙对织物系统传热透湿性能的影响,利用出汗热平板仪测试织物系统的热阻和湿阻,并通过在热板与织物之间放置不同厚度的分隔板来模拟衣下间隙厚度,实现了定量测试皮肤-衣下间隙-织物之间的热湿传递。实验结果证明:织物系统的热阻和湿阻先随着衣下间隙厚度的增大而增加,但在衣下间隙达到12mm时出现下降,随后又进一步增加;虽然织物厚度影响着织物系统的热阻与湿阻,但衣下间隙对织物系统热湿阻的影响更为显著。综合服装的合体美观与舒适保暖性能,建议防寒类服装设计采用胸围放松量6~8cm之间为宜。本研究有助于理解服装宽松量设计与服装隔热透湿性能之间的相互关系,对服装产品的舒适设计有指导意义。
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The relationship between air gaps and thermal and evaporative resistances of clothing
Abstract:To investigate the effect of air gaps located between human skin and fabric on the heat and moisture transfer properties of fabric system, the sweating hot plate was used to test the thermal and evaporative insulation of fabric. The research used a spacer with different thickness to simulate different air gaps, in such way, the heat and moisture transfer through human skin-air gaps-fabric was quantificational tested. The experimental results show that the thermal and evaporative insulation of fabric system increase with the air gaps firstly, and then go down when the air gaps reaches 12mm, after that they go up again. Although the fabric thickness influence the thermal and evaporative insulation of fabric system, the experiment proves that the influence is more significant for air gaps under clothing. Taking into account of the fit and warm properties of clothing, the allowance of chest for cold protective clothing is suggested to be 6-8 cm. This paper is helpful to understand the relationship between clothing ease design and heat transfer property, which provides an instruction to clothing comfort design.
Keywords: fabric system thermal insulation evaporative insulation air gaps sweating hot plate
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