Base woven fabric for airbag

摘要

An object of the present invention is to provide a base fabric suitable for the production of a general-purpose airbag having a higher airtight performance with reduced air permeability, a high pressure resistance in the boundary portion between the inflating part and the non-inflating part, and a high impact absorption for an occupant, and a base fabric for an airbag of the present invention comprises a woven fabric formed of a multifilament synthetic fiber having a total fineness of 200 to 550 dtex and a single filament fineness of 2.0 to 7.0 dtex, wherein the elongation is, on average of warp and weft, from 5 to 15% and from 15 to 30% under loads of 50 N/cm and 300 N/cm, respectively, and the pullout resistance of the constituent yarn is from 50 to 200 N/cm/cm on average of warp and weft.

主权项

1. A base fabric for an airbag, comprising a woven fabric formed of a multifilament synthetic fiber having a total fineness of 200 to 550 dtex and a single filament fineness of 2.0 to 7.0 dtex, wherein the original yarn used is a polyamide 6.6 fiber having a boiling water shrinkage percentage of 7.3% to 13%, the elongation is, on average of warp and weft, from 5 to 15% and from 15 to 30% under loads of 50 N/cm and 300 N/cm, respectively, and the pullout resistance of the constituent yarn is from 50 to 200 N/cm/cm on average of warp and weft, and the dynamic air permeability after loading of 100 N/cm the stitched boundary portion sewn together by the following specific sewing is 2,300 mm/s or less at a 50 kPa:
Specific sewing: two sheets of fabric are lock-stitched at 50 stitches/10 cm by using a twisted yarn of 1,350 dtex.