의류제품

Comfort performance of Protective Apparel.

  • 출판일2002.06
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 391
Protective clothing may interfere with the body's cooling systems and lead to dangerous heat stress levels in hot weather. The moisture vapor transmission rate (MVTR) test used to evaluate the diffusion of water vapor through protective clothing fabric generates misleading results. A thermodynamic calculation demonstrates the problems with the MVTR test. Air gaps between the fabric and skin, pressure gradients from body motion, and condensation on the inner clothing surface affect heat transfer mechanisms. Studies using human test subjects identified factors that relate heat stress performance and protective clothing fabric. Test conditions simulating a summer dye in St. Louis, Missouri, showed that fabric air flow permeability was the best predictor of thermal performance. 11 refs.
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