D - Textiles – Paper – 03 – D
Patent
D - Textiles, Paper
03
D
D03D 15/04 (2006.01) B60R 21/16 (2006.01) D03D 1/02 (2006.01) D03D 1/04 (2006.01) D06B 3/10 (2006.01) D06B 15/09 (2006.01)
Patent
CA 2450103
The present invention relates to a low shrinkage polyamide fiber suitable for use as a yarn of a fabric for airbags, and an uncoated fabric for airbags produced using the same. The uncoated fabric for airbags is produced by a method comprising the steps of: (A) weaving a low shrinkage polyamide fiber having a dry heat shrinkage of 3-6% (190 °C for 15 minutes) into a grey fabric for airbags; (B) heat-shrinking the grey fabric by successively passing it through 3-10 aqueous baths, the temperature of each of which is 5-20 °C higher than that of the preceding aqueous bath; (C) additionally heat-shrinking the fabric from the aqueous baths by passing it through a steam heater; and (D) drying the fabric from the steam heater by passing it through a hot air drier. The fabric produced using the low shrinkage polyamide fiber of the present invention has high tensile strength and tear strength; and excellent quality, and thus, is useful as a fabric for airbags.
Lee Chang-Hwan
Yu Je-An
Battison Williams Dupuis
Hyosung Corporation
LandOfFree
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