PURPOSE: To provide a compact air bag which is composed of lightweight cloth not covered with elastomer, and can bear hot blast and flame at the time of a collision.
CONSTITUTION: A continuous long fiber bundle A composed of thermoplastic fiber such as polyester fiber of 5de or less in single yarn fineness, 6g/de or more in strength, and 1,300kg/mm2 or less in Young's modulus is positioned at the core part, around which a short fiber bundle B composed of heat resistant fiber which can bear thermal decomposition temperature of 300°C or more such as para-aromatic polyamido fiber of 2de or less in single yarn fineness is wound and held. The long and short composite yarn whose nonuniforming degree coefficient in the lengthwise direction of the thread is 1.3 or less used as warp and weft to be woven so that ventilation degree may be 0.3cc/sec.cm2 or less, and to sew the finished cloth into a bag.
SHIGEMURA YUKIHIRO
TAKAHASHI NOBUO
NISHIMURA KUNIO
