FASH220 Lecture Notes - Lecture 7: Phase-Change Material, Breathability, Geotextile

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For physical comfort and human performance, aesthetics and expression, and non wearable"s that support modern society. Moisture transport: keep cool in hot weather, textiles ability to move moisture away form the skin are more comfortable. Transporting moisture depends on temperature of human body, temp of outside air. Clo value: unit of measurement for expressing thermal resistance, higher clo. Water repellent: light protection from rain, beads slightly or does not readily absorb. Water resistant: medium protection from rain, beads or does not absorb completely. Waterproof: complete rain protection, impermeable non wovens, uncomfortable. Breathability: ability to transport moisture for inside out and air from outside in: membrane- layer in construction of breathable yet completely water proof fabrics. Phase change materials: alternates between solid and liquid state, gives off heat in solid state, absorbs heat in liquid state, body heat absorbed and stored for cooling effect, released form heating effect.

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