Microporous Polyurethane Membrane Lamination
topic
Microporous polyurethane membrane lamination bonds wet-coagulated or phase-separated PU membranes with pore sizes of 0.5 to 5 micrometres to textile face fabrics using reactive or hot melt polyurethane adhesive, producing mid-market waterproof breathable fabrics with hydrostatic pressure resistance of 10000 to 20000 millimetres water column and moisture vapour transmission of 5000 to 12000 grams per square metre per day for general outdoor apparel applications.
Role
Produces the mainstream waterproof breathable laminate category for outdoor and active apparel through PU membrane lamination that provides adequate waterproofing and breathability at lower material cost than ePTFE-based systems, with PU membrane lamination quality depending on uniform adhesive application that maintains membrane breathability while providing adequate bond strength for the delamination resistance required through repeated laundering and field use cycles.
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