Early jackets made from a blend of two materials would still allow water to enter, and the coating could not be fully waterproof and breathable. Various defects gave rise to the birth of new materials.
In 1969, the emergence of a membrane full of small holes brought jackets into a new era.
The emergence of Teflon waterproof and breathable membrane has made jackets truly waterproof and breathable, and jackets using coating + film have become mainstream.
The polytetrafluoroethylene microporous membrane is prepared using a unique biaxial stretching technology, which can ensure the complete retention of bacteria and other impurities while having a large flux.
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