TEXTILE FOR UNCOVERED AIR BAG USING LOW SHRINKAGE POLYAMIDE FIBER AND HAVING EXCELLENT TENSILE STRENGTH AND TEAR STRENGTH

摘要

PURPOSE: Textile for an uncovered air bag is characterized by using low shrinkage polyamide fiber having 3-6% of dry heat shrinkage(160deg.C, 30min.) and having excellent tensile strength and tear strength. CONSTITUTION: Textile for an uncovered air bag is obtained by the steps of: (A) weaving grey textile out of low shrinkage polyamide fiber having 3-6% of dry heat shrinkage(160deg.C, 30min.); (B) passing continuously the grey textile in 3-10 of aqueous baths elevated gradually temperature by 5-20deg.C to heat-shrink; (C) passing the grey textile through a steam heating device to heat-shrink additively; and then (D) passing the textile through a hot blast drying device to dry. The textile has 200-300kg of tensile strength, 25-40kg of tear strength and under 1.0cm¬3/cm¬2/sec of air permeability.