Jan 1, 1997

Analysis of sweat evaporation from clothing materials by the ventilated sweat capsule method

European Journal of Applied Physiology and Occupational Physiology
K OtomasuM Kosaka


The local influence of three clothing materials i.e. silk, cotton and nylon, in (1) full or (2) partial skin contact or (3) at 3 mm from the skin, on sweat evaporation from the chest skin surface of human subjects was studied. The hygrometer-ventilated capsule method was used and sweating was induced at ambient thermoneutrality by a central heat load following lower-leg immersion in water at 43 degrees C. The presence of clothing delayed the rise in capsule relative humidity (CRH) induced by heat loading. During the first 6 min of heating, CRH rose more steeply with clothing that was in full skin contact than with clothing that had partial or no contact. The rate of decrease in CRH from 1 min to 6 min after heating was not influenced by the presence of clothing or by the different degrees of skin contact. The subsequent return of CRH to the pre-heating level was delayed most by cotton, less by silk and least by nylon. For silk and nylon, partial contact with the skin prolonged the return to control conditions, as compared with full skin contact.

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Mentioned in this Paper

Microbial Anatomical Capsule Structure
Specimen Type - Sweat
Heat Loss
Skin Physiological Phenomena
Structure of Organ Capsule

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