| abstract |
This invention provides polyamide 56 filaments capable of forming an airbag fabric more excellent in flexibility and impact absorbability than the airbag fabric formed of the conventional polyamide 66 filaments, and also excellent in low air permeability, high strength, heat resistance and durability in good balance, a fiber structure containing said filaments, and an airbag fabric. These can be achieved by polyamide 56 filaments characterized by having a relative viscosity in sulfuric acid of 3 to 8, an Mw/Mn ratio of 1.5 to 3, a single fiber fineness of 0.1 to 7 dtex, a strength of 7 to 12 cN/dtex, a shrinkage rate of 5 to 20% after having been subjected to boiling water treatment at 98°C for 30 minutes, a strength of 5 to 11 cN/dtex after the boiling water treatment and a stress at 10% elongation of 0.3 to 1.5 cN/dtex after the boiling water treatment. |