Seiren Company, Ltd

Siren Co., Ltd.

Shota Kodera

Tsuyoshi Houraiya

Kohichi Sakashita

A non-coated air bag fabric according to the present invention includes a plurality of weft yarns and a plurality of warp yarns, in which the weft yarns and the warp yarns are constituted by multifilament yarns in which polyethylene terephthalate fibers are used, the number of filaments in each of the multifilament yarns ranges from 122 to 242, and a coefficient of kinetic friction of a surface of the fabric ranges from 1.15 to 1.25 or less, the coefficient of kinetic friction being calculated when a friction block in which polyvinyl chloride is used is brought into contact with the fabric placed on a stage that is rotating at a rotation speed of 663 rpm, at a load of 5 N, using a torque type friction and wear tester.

Non-coated air bag fabric and air bag

A non-coated air bag base cloth of the present invention is constituted by a fabric formed using a yarn containing polyethylene terephthalate as a main raw material, in which a single fiber strength of a yarn of the fabric is 7.30 to 8.50 cN, a single fiber fineness of a yarn of the fabric is 1.6 to 3.9 dtex, and a cover factor is 2400 to 2800.

Non-coated air bag base cloth and air bag

Provided is a non-coated air bag fabric capable of solving problems regarding smoothness of a fabric surface while having low air permeability, and an air bag including the same. The non-coated air bag fabric according to the present invention includes a plurality of weft threads and a plurality of warp threads, in which the weft threads and the warp threads are constituted by multifilament threads in which polyethylene terephthalate fibers are used, the number of filaments in each of the multifilament threads is 122 to 242, and a warp/weft average MMD (a mean deviation of coefficient of friction) of a surface is 0.02 or less.

An air bag base cloth according to the present invention includes a base cloth main body formed of synthetic fibers, and a synthetic resin layer with which at least one face of the base cloth main body is coated, and the moisture content measured in accordance with JIS L 1096.8.10 is 0.5% or less.

Air bag base cloth and air bag

The present invention relates to an airbag base fabric including a woven fabric made from a yarn containing polyethylene terephthalate as the main raw material, the yarn having a single fiber fineness of 1.0 to 3.9 dtex and a total fineness of 280 to 470 dtex, and, in a Raman spectrum obtained by irradiating the yarn with a He&#x2014;Ne laser with a wavelength of 630 nm, I/Ibeing 1.20 or more, where Iis the spectral intensity at 3083 cm, and I=277.4.

Airbag base fabric and airbag

Provided is an airbag base fabric that is a woven fabric constituted by a yarn containing polyethylene terephthalate as the main raw material, the yarn constituting the woven fabric having a total fineness of 280 to 500 dtex and a single fiber fineness of 1.0 to 3.9 dtex, the woven fabric having a cover factor of 2400 to 2800, and the D-value calculated from the thickness Dof a single sheet of the base fabric and the thickness Dof ten sheets of the base fabric that are stacked together being 0.9 or less, where the D-value is calculated using a formula A below:/(&#xd7;10).&#x2003;&#x2003;Formula A:

A non-coated air bag fabric according to the present invention is woven using fibers containing polyethylene terephthalate as a main raw material, the fabric has a cover factor of 2350 or more, and a single fiber fineness of a yarn that constitutes the fabric is 2.0 dtex to 4.0 dtex inclusive.

Provided is a non-coated air bag fabric made from polyethylene terephthalate, and the fabric is woven using fibers containing polyethylene terephthalate as the main raw material, the fabric having a cover factor of 2300 or more, Z calculated using the equation below is 8200 or more, and a height difference between recesses and protrusions on the surface of the fabric is less than 130 &#x3bc;m. Z=cover factor/thickness (mm).

An air bag base cloth according to the present invention includes a synthetic fiber fabric constituted by warp and weft that are constituted by synthetic fibers, and a synthetic resin layer that coats at least one surface of the synthetic fiber fabric, and only threads in one of the warp and the weft of the synthetic fiber fabric are exposed from the synthetic resin layer.

Growing community of inventors

Fukui, Japan

Shota Kodera