Process for the production of uncoated technical fabrics with low air permeability

摘要

Uncoated technical fabric is produced in a dense weave with low air permeability. The fabric contains polyamide filament yarns with a hot air shrinkage of 6 to 15% (determined at 160 DEG C.) and has an at least substantially symmetrical fabric construction. The fabric is adjusted to the required air permeability by a treatment in an aqueous bath at 60 DEG to 140 DEG C.