Polyester base fabric for airbag, polyester airbag, and method of manufacturing polyester base fabric for airbag
AssigneeToray Industries, Inc.
InventorsRiku Yamada, Nobuaki Tanaka
Life of this patent
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Abstract
A polyester base fabric for airbags woven from polyester fiber has an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm2; an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm2; and a ratio (EW/EF) of the energy absorption amount in the warp direction (EW) to the energy absorption amount in the weft direction (EF) of 0.5 to 2.0.
Claims10
A polyester base fabric for airbags woven from polyester fiber, wherein:
- an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm is 1.0 to 3.0 J/cm2;
- an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm is 1.0 to 3.0 J/cm2;
- a ratio (EW/EF) of the energy absorption amount in the warp direction (EW) to the energy absorption amount in the weft direction (EF) is 0.5 to 2.0.
Dependencies are inferred from the claim text.