23-01-2014 дата публикации
Номер: US20140021704A1
The present invention relates to a fabric for an airbag, and a production method thereof. More particularly, the present invention relates to a polyester fabric which includes a high-strength, high-elongation and low-modulus polyester yarn to show excellent toughness and energy absorbing performance after high-humidity heat treatment for a long period of time, a production method thereof, and an airbag for an automobile including the same. 1. A polyester fabric , comprising a polyester yarn having a fineness of 300 to 700 denier , and having 0.8 or more of a PTSRIindex in the warp direction of the fabric as shown in the following Equation 1 , 0.8 or more of a PTSRIindex in the weft direction of the fabric as shown in the following Equation 2 , 0.8 or more of a PSSRIindex in the warp direction of the fabric as shown in the following Equation 3 , and 0.8 or more of a PSSRIindex in the weft direction of the fabric as shown in the following Equation 4:{'br': None, 'sup': wa', 'wa', 'wa, 'sub': '3000', 'PTSRI=PTS/PTS\u2003\u2003[Equation 1]'}{'br': None, 'sup': we', 'we', 'we, 'sub': '3000', 'PTSRI=PTS/PTS\u2003\u2003[Equation 2]'}{'br': None, 'sup': wa', 'wa', 'wa, 'sub': '3000', 'PSSRI=PSS/PSS\u2003\u2003[Equation 3]'}{'br': None, 'sup': we', 'we', 'we, 'sub': '3000', 'PSSRI=PSS/PSS\u2003\u2003[Equation 4]'}{'sup': wa', 'we, "wherein PTSRIand PTSRIrepresent a polyester tearing strength retention index (PTSRI) in the warp and weft directions of the fabric, which is measured after heat treatment at 110° C. for 3,000 hours in accordance with Autoliv's test standard E668992 for a fabric for an airbag, respectively,"}{'sup': wa', 'we, "PSSRIand PSSRIrepresent a polyester seam strength retention index (PSSRI) in the warp and weft directions of the fabric, which is measured after heat treatment at 110° C. for 3,000 hours in accordance with Autoliv's test standard E668992 for a fabric for an airbag, respectively,"}{'sup': wa', 'we, "PTSand PTSrepresent a polyester tear ...
Подробнее