Abstract: Provided is airbag fabric using a polyamide 410. This airbag fabric can be used as a replacement for nylon 66 fabric and further as bioairbag fabric, is excellent in heat resistance, and can suppress breakage due to high-temperature gas or residues emitted from an inflator in an airbag cushion deployment test. This airbag fabric is formed from polyamide 410 fibers.
1. A woven fabric for airbag, comprising a polyamide 410 fiber.
5
2. The woven fabric for airbag according to claim 1, wherein a sum
total of a crimp rate in a warp direction and a crimp rate in a weft direction is
7.00 to 25.0%.
10 3. The woven fabric for airbag according to claim 2, wherein a melt
fall time per total weight in a heat resistance test of allowing an iron rod heated
to 350°C to fall onto a base fabric is 7.00 to 20.0 msec/(g/m2
).
4. The woven fabric for airbag according to any one of claims 1 to
15 3, wherein a dynamic air permeability increase rate of the fabric after a
hygrothermal treatment for 408 hours under conditions with a temperature of
70°C and a humidity of 95% RH is 25% or less.
5. The woven fabric for airbag according to any one of claims 1 to
20 4, wherein a tensile strength retention rate of the fabric after a hygrothermal
treatment for 408 hours under conditions with a temperature of 70°C and a
humidity of 95% RH is 97.0% or more.
6. The woven fabric for airbag according to any one of claims 1 to
25 5, wherein a moisture content of the fabric as measured in accordance with JIS
L 1096:2010 8.10 is more than 0.5% and 2.5% or less.
WE CLAIM:
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7. The woven fabric for airbag according to any one of claims 1 to
6, wherein the polyamide 410 fiber contains a polyamide synthesized from a
biomass-derived monomer, and a content of the polyamide synthesized from
the biomass-derived monomer is 25 wt% or more in the polyamide 410 fiber.
5
8. An airbag comprising the woven fabric for airbag of any one of
claims 1 to 7.
| # | Name | Date |
|---|---|---|
| 1 | 202447027584-STATEMENT OF UNDERTAKING (FORM 3) [03-04-2024(online)].pdf | 2024-04-03 |
| 2 | 202447027584-PROOF OF RIGHT [03-04-2024(online)].pdf | 2024-04-03 |
| 3 | 202447027584-PRIORITY DOCUMENTS [03-04-2024(online)].pdf | 2024-04-03 |
| 4 | 202447027584-FORM 18 [03-04-2024(online)].pdf | 2024-04-03 |
| 5 | 202447027584-FORM 1 [03-04-2024(online)].pdf | 2024-04-03 |
| 6 | 202447027584-DECLARATION OF INVENTORSHIP (FORM 5) [03-04-2024(online)].pdf | 2024-04-03 |
| 7 | 202447027584-COMPLETE SPECIFICATION [03-04-2024(online)].pdf | 2024-04-03 |
| 8 | 202447027584-FORM-26 [22-05-2024(online)].pdf | 2024-05-22 |
| 9 | 202447027584-FORM 3 [06-08-2024(online)].pdf | 2024-08-06 |