Title:
WOVEN FABRIC FOR AIR BAGS, AIR BAGS AND PROCESS FOR PRODUCTION OF THE WOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2007/148791
Kind Code:
A1
Abstract:
The invention provides a woven fabric for air bags which has two properties essential to the woven fabric for air bags, namely, low air permeability and high compactness in storage and which is excellent in edgecomb resistance and is therefore reduced in the slippage of meshes in a seamed section of an air bag as observed when the air bag is inflated and stops a driver or the like; air bags made of the fabric; and a process for the production of the fabric. A woven fabric for air bags wherein the warp and the weft are made of the same kind of synthetic fiber yarn, characterized by satisfying the following requirements: (1) the total finenessof the synthetic fiber yarn is 100 to 700dtex, (2) Nf/Nw ≥ 1.10 (wherein Nw is warp density of the fabric(number of thread per 2.54cm) and Nf is weft density of the fabric (number of thread per 2.54cm)), (3) EC1 ≥ 400N, EC2 ≥ 400N (wherein EC1 is edgecomb resistance (N) in the warp direction according to ASTM D6479-02; and EC2 is edgecomb resistance (N) in the weft direction according to ASTM D6479-02), (4) 0.85 ≤ EC2/EC1 ≤ 1.15, and (5) the air permeability is 1.0L/cm2 min or below as determined by the Frazier method of JIS L 1096 with a differential pressure of 19.6kPa.
Inventors:
FUJIYAMA, Tomomichi (Toray Industries Inc., 3-3, Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 22, 5308222, JP)
藤山友道 (〒22 大阪府大阪市北区中ノ島３丁目３番３号 東レ株式会社大阪事業場内 Osaka, 5308222, JP)
YAHATA, Daisuke (Toray Industries Inc., 1-1, Oe 1-chome, Otsu-sh, Shiga 41, 5202141, JP)
藤山友道 (〒22 大阪府大阪市北区中ノ島３丁目３番３号 東レ株式会社大阪事業場内 Osaka, 5308222, JP)
YAHATA, Daisuke (Toray Industries Inc., 1-1, Oe 1-chome, Otsu-sh, Shiga 41, 5202141, JP)
Application Number:
JP2007/062613
Publication Date:
December 27, 2007
Filing Date:
June 22, 2007
Export Citation:
Assignee:
Toray Industries, Inc. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 1038666, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 1038666, JP)
FUJIYAMA, Tomomichi (Toray Industries Inc., 3-3, Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 22, 5308222, JP)
藤山友道 (〒22 大阪府大阪市北区中ノ島３丁目３番３号 東レ株式会社大阪事業場内 Osaka, 5308222, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 1038666, JP)
FUJIYAMA, Tomomichi (Toray Industries Inc., 3-3, Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 22, 5308222, JP)
藤山友道 (〒22 大阪府大阪市北区中ノ島３丁目３番３号 東レ株式会社大阪事業場内 Osaka, 5308222, JP)
International Classes:
D03D1/02; B60R21/16
Attorney, Agent or Firm:
KATO, Keiko et al. (TATSUNO NISHITEMMA BLDG, 4F.1-6, Nishitemmma, 3-chome,Kita-ku, Osaka-shi, Osaka 47, 5300047, JP)