Waterproof and moisture-permeable composite membrane and waterproof and moisture-permeable fabric having waterproof and moisture-permeable composite membrane

摘要

The objects of the present invention are to provide a moisture permeable waterproof composite film and to provide a moisture permeable waterproof fabric which is constructed to contain the moisture permeable waterproof composite film, each of which being capable of, while retaining the moisture permeability thereof, suppressing deterioration of waterproofness even if external force is applied to these film and fabric. This moisture permeable waterproof composite film is formed of a laminate comprising of at least one layer of porous polytetrafluoroethylene, and at least one layer of porous polyurethane.