Title:
WOVEN FABRIC FOR UNCOATED AIR BAG
Document Type and Number:
Japanese Patent JP3319589
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a woven fabric for an uncoated air bag having characteristics of a low air permeability under a low pressure at the time of starting development, high air permeation performances under a high pressure (≥40 kPa) in the latter period of the development and excellent in economical efficiency.
SOLUTION: This woven fabric comprises thermoplastic filaments and has 0.1-0.6 air permeation deformation index PI of the thermoplastic filaments represented by the formula and ≤1.0 L/cm2/min air permeability of the woven fabric under 20 kPa differential pressure. The air permeation deformation index PI is represented by PI=M(3)×(Den×ρ/f)1/2 [M(3) is the value (g/d) of tensile resistance at the time of 3% elongation of the filaments constituting the woven fabric; Den is the denier (d) of the filaments constituting the woven fabric; f is the number of single filaments (filaments) of a multifilament yarn constituting the woven fabric; ρ is the density (g/cm3) of the thermoplastic filaments].
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Inventors:
Mamoru Kitamura
Tatsuo Konishi
Tatsuo Konishi
Application Number:
JP20497599A
Publication Date:
September 03, 2002
Filing Date:
July 19, 1999
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
B60R21/16; D03D1/02; (IPC1-7): D03D1/02; B60R21/16
Domestic Patent References:
| JP1060750A | ||||
| JP6298209A | ||||
| JP790746A | ||||
| JP11129846A |
Attorney, Agent or Firm:
Takao Suzuki (4 others)
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