Fabric for Airbag
Abstract
An object of the present invention is to provide a fabric for an airbag which is of low cost, is excellent in accommodability, and has air permeability satisfying the human body initial constraining performance. The present invention provides a fabric for an airbag comprising a synthetic fiber woven fabric in which at least one side thereof is coated with a synthetic resin, characterized in that a range of 0.1 to 10 g/m 2 of a synthetic resin is adhered to the synthetic fiber woven fabric having a cover factor represented by the equation 1 of less than 2000 and FR represented by the equation 2 of 55% or more, and air permeability of the fabric under a pressure difference of 100 kPa after adhesion is 0.01 to 1.00 L/cm 2 /min.
Claims
exact text as granted — not AI-modified1 - 5 . (canceled)
6 . A fabric for an airbag comprising a synthetic fiber woven fabric in which at least one side thereof is coated with a polyamide-based resin, characterized in that a range of 0.1 to 8.0 g/m 2 of the polyamide-based resin is adhered to the synthetic fiber woven fabric having a cover factor represented by the equation 1 of less than 2000 and FR represented by the equation 2 of 55% or more, and air permeability of the fabric under a pressure difference of 100 kPa after adhesion is 0.01 to 1.00 L/cm 2 /min.
Cover
factor
=
[
warp
density
(
number
/
2.54
cm
)
×
√
(
warp
fineness
(
dtex
)
×
0.9
)
]
+
[
weft
density
(
number
/
2.54
cm
)
×
√
(
weft
fineness
(
dtex
)
×
0.9
)
]
(
equation
1
)
FR
(
%
)
=
W
/
(
ρ
×
T
×
10
)
(
equation
2
)
W: woven fabric mass (g/cm 2 ), ρ: fiber specific gravity (g/cm 3 ), T: woven fabric thickness (mm)
7 . The fabric for an airbag according to claim 6 , wherein the polyamide-based resin comprises at least a polyamide-based elastomer and two kinds of thickeners, and a ratio of the thickener among an adhesion amount of the polyamide-based resin in the fabric after drying is 30% by mass or less.
8 . The fabric for an airbag according to claim 7 , wherein the polyamide-based elastomer has a soft segment comprising a polyol having a number average molecular weight of 100 to 5000.
9 . the fabric for an airbag according to claim 8 , wherein the polyol is amino-modified.
10 . The fabric for an airbag according to claim 8 , wherein the polyamide-based elastomer is a polyether polyamide copolymer composed of a soft segment and a hard segment, the soft segment consists of polyether polyamide composed of a polyether diamine compound represented by the following general formula (I) and a dicarboxylic acid compound represented by the following general formula (II), and the hard segment consists of a polyamide composed of an aminocarboxylic acid compound represented by the following general formula (III), and/or a lactam compound represented by the following general formula (IV).
[Chemical formula 1] H 2 NR—O n R—NH 2 (I)
wherein R represents a straight or branched alkylene group of a carbon number of 2 to 3, and n represents a numerical value of 13 to 26,
[Chemical formula 2]
HOOC—R 1 COOH (II)
wherein R 1 represents a tethering group comprising a hydrocarbon chain,
[Chemical formula 3]
H 2 N—R 2 —COOH (III)
wherein R 2 represents a tethering group comprising a hydrocarbon chain,
wherein R 3 represents a tethering group comprising a hydrocarbon chain.
11 . The fabric for an airbag according to claim 7 , wherein the thickener is a cellulose-based derivative.Cited by (0)
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