Body heat encourages water vapor to escape.
When mountaineering, the human body temperature rises, and the internal temperature is greater than the outside air, causing sweat to spread outside the jacket.
The small holes in the Teflon waterproof and breathable membrane are like factory chimneys, providing a discharge channel for water vapor.
Water vapor can pass through the pores of the film.
Water vapor is water molecules with smaller particle sizes (the diameter of a water molecule is about 0.4 nanometers, 1 micron = 1000 nanometers), so water vapor is easily discharged from small holes.
PTFE film manufacturer specializes in the production of polytetrafluoroethylene microporous membranes. It has advanced PTFE film production lines, coating and composite production lines, which are at the domestic advanced level.
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